Question and Test Interoperability (QTI): Assessment, Section and Item Information Model

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Document Name: IMS Question and Test Interoperability (QTI): Assessment, Section and Item Information Model v3.0

Org Name	Date Election Made	Necessary Claims	Type
CITO	March 11, 2022	No	RF RAND (Required & Optional Elements)
HMH	March 11, 2022	No	RF RAND (Required & Optional Elements)

Abstract

This document is the core part of the IMS Global Question and Test Interoperability (QTI) v3.0 specification. This document describes the information model for items, sections and whole tests used in assessment. Formally these are known as the Assessment, Section and Item (ASI) features.

The IMS QTI specification describes a data model for the representation of question (qti-assessment-item) and test (qti-assessment-test) data and their corresponding results reports. Therefore, the specification enables the exchange of this item, test and results data between authoring tools, item banks, test constructional tools, learning systems and assessment delivery systems. The data model is described abstractly, using the Unified Modeling Language (UML) to facilitate binding to a wide range of data-modelling tools and programming languages. For interchange between systems a binding is provided to the industry standard Extensible Markup Language (XML) [QTI-BIND-30] and use of this binding is required for certification. The IMS QTI specification has been designed to support both interoperability and innovation through the provision of well-defined extension points. These extension points can be used to wrap specialized or proprietary data in ways that allows it to be used alongside items that can be represented directly.

List of Figures

List of Tables

Table 3.1 Description of the "qti-assessment-item" root attribute.

Table 3.2 Description of the "qti-assessment-section" root attribute.

Table 3.3 Description of the "qti-assessment-stimulus" root attribute.

Table 3.4 Description of the "qti-assessment-test" root attribute.

Table 3.5 Description of the "qti-outcome-declaration" root attribute.

Table 3.6 Description of the "qti-response-processing" root attribute.

Table 4.1 AssessmentItem class definitions

Table 4.1.1 Description of the "identifier" characteristic for the "AssessmentItem" class

Table 4.1.2 Description of the "title" characteristic for the "AssessmentItem" class

Table 4.1.3 Description of the "label" characteristic for the "AssessmentItem" class

Table 4.1.4 Description of the "language" characteristic for the "AssessmentItem" class

Table 4.1.5 Description of the "tool-name" characteristic for the "AssessmentItem" class

Table 4.1.6 Description of the "tool-version" characteristic for the "AssessmentItem" class

Table 4.1.7 Description of the "adaptive" characteristic for the "AssessmentItem" class

Table 4.1.8 Description of the "time-dependent" characteristic for the "AssessmentItem" class

Table 4.1.9 Description of the "dataExtension" characteristic for the "AssessmentItem" class

Table 4.1.10 Description of the "qti-context-declaration" attribute for the "AssessmentItem" class

Table 4.1.11 Description of the "qti-response-declaration" attribute for the "AssessmentItem" class

Table 4.1.12 Description of the "qti-outcome-declaration" attribute for the "AssessmentItem" class

Table 4.1.13 Description of the "qti-template-declaration" attribute for the "AssessmentItem" class

Table 4.1.14 Description of the "qti-template-processing" attribute for the "AssessmentItem" class

Table 4.1.15 Description of the "qti-assessment-stimulus-ref" attribute for the "AssessmentItem" class

Table 4.1.16 Description of the "qti-companion-materials-info" attribute for the "AssessmentItem" class

Table 4.1.17 Description of the "qti-stylesheet" attribute for the "AssessmentItem" class

Table 4.1.18 Description of the "qti-item-body" attribute for the "AssessmentItem" class

Table 4.1.19 Description of the "qti-catalog-info" attribute for the "AssessmentItem" class

Table 4.1.20 Description of the "qti-response-processing" attribute for the "AssessmentItem" class

Table 4.1.21 Description of the "qti-modal-feedback" attribute for the "AssessmentItem" class

Table 4.2 AssessmentSection class definitions

Table 4.2.1 Description of the "identifier" characteristic for the "AssessmentSection" class

Table 4.2.2 Description of the "required" characteristic for the "AssessmentSection" class

Table 4.2.3 Description of the "fixed" characteristic for the "AssessmentSection" class

Table 4.2.4 Description of the "title" characteristic for the "AssessmentSection" class

Table 4.2.5 Description of the "class" characteristic for the "AssessmentSection" class

Table 4.2.6 Description of the "visible" characteristic for the "AssessmentSection" class

Table 4.2.7 Description of the "keep-together" characteristic for the "AssessmentSection" class

Table 4.2.8 Description of the "dataExtension" characteristic for the "AssessmentSection" class

Table 4.2.9 Description of the "qti-pre-condition" attribute for the "AssessmentSection" class

Table 4.2.10 Description of the "qti-branch-rule" attribute for the "AssessmentSection" class

Table 4.2.11 Description of the "qti-item-session-control" attribute for the "AssessmentSection" class

Table 4.2.12 Description of the "qti-time-limits" attribute for the "AssessmentSection" class

Table 4.2.13 Description of the "adaptive" attribute for the "AssessmentSection" class

Table 4.2.14 Description of the "qti-rubric-block" attribute for the "AssessmentSection" class

Table 4.2.15 Description of the "sectionPart" attribute for the "AssessmentSection" class

Table 4.3 AssessmentStimulus class definitions

Table 4.3.1 Description of the "identifier" characteristic for the "AssessmentStimulus" class

Table 4.3.2 Description of the "title" characteristic for the "AssessmentStimulus" class

Table 4.3.3 Description of the "label" characteristic for the "AssessmentStimulus" class

Table 4.3.4 Description of the "language" characteristic for the "AssessmentStimulus" class

Table 4.3.5 Description of the "tool-name" characteristic for the "AssessmentStimulus" class

Table 4.3.6 Description of the "tool-version" characteristic for the "AssessmentStimulus" class

Table 4.3.7 Description of the "dataExtension" characteristic for the "AssessmentStimulus" class

Table 4.3.8 Description of the "qti-stylesheet" attribute for the "AssessmentStimulus" class

Table 4.3.9 Description of the "qti-stimulus-body" attribute for the "AssessmentStimulus" class

Table 4.3.10 Description of the "qti-catalog-info" attribute for the "AssessmentStimulus" class

Table 4.4 AssessmentTest class definitions

Table 4.4.1 Description of the "identifier" characteristic for the "AssessmentTest" class

Table 4.4.2 Description of the "title" characteristic for the "AssessmentTest" class

Table 4.4.3 Description of the "class" characteristic for the "AssessmentTest" class

Table 4.4.4 Description of the "tool-name" characteristic for the "AssessmentTest" class

Table 4.4.5 Description of the "tool-version" characteristic for the "AssessmentTest" class

Table 4.4.6 Description of the "dataExtension" characteristic for the "AssessmentTest" class

Table 4.4.7 Description of the "qti-context-declaration" attribute for the "AssessmentTest" class

Table 4.4.8 Description of the "qti-outcome-declaration" attribute for the "AssessmentTest" class

Table 4.4.9 Description of the "qti-time-limits" attribute for the "AssessmentTest" class

Table 4.4.10 Description of the "qti-stylesheet" attribute for the "AssessmentTest" class

Table 4.4.11 Description of the "qti-rubric-block" attribute for the "AssessmentTest" class

Table 4.4.12 Description of the "qti-test-part" attribute for the "AssessmentTest" class

Table 4.4.13 Description of the "qti-outcome-processing" attribute for the "AssessmentTest" class

Table 4.4.14 Description of the "qti-test-feedback" attribute for the "AssessmentTest" class

Table 4.5 OutcomeDeclaration class definitions

Table 4.5.1 Description of the "identifier" characteristic for the "OutcomeDeclaration" class

Table 4.5.2 Description of the "cardinality" characteristic for the "OutcomeDeclaration" class

Table 4.5.3 Description of the "base-type" characteristic for the "OutcomeDeclaration" class

Table 4.5.4 Description of the "view" characteristic for the "OutcomeDeclaration" class

Table 4.5.5 Description of the "interpretation" characteristic for the "OutcomeDeclaration" class

Table 4.5.6 Description of the "long-interpretation" characteristic for the "OutcomeDeclaration" class

Table 4.5.7 Description of the "normal-maximum" characteristic for the "OutcomeDeclaration" class

Table 4.5.8 Description of the "normal-minimum" characteristic for the "OutcomeDeclaration" class

Table 4.5.9 Description of the "mastery-value" characteristic for the "OutcomeDeclaration" class

Table 4.5.10 Description of the "external-scored" characteristic for the "OutcomeDeclaration" class

Table 4.5.11 Description of the "variable-identifier-ref" characteristic for the "OutcomeDeclaration" class

Table 4.5.12 Description of the "qti-default-value" attribute for the "OutcomeDeclaration" class

Table 4.5.13 Description of the "lookupTable" attribute for the "OutcomeDeclaration" class

Table 4.6 ResponseProcessing class definitions

Table 4.6.1 Description of the "template" characteristic for the "ResponseProcessing" class

Table 4.6.2 Description of the "template-location" characteristic for the "ResponseProcessing" class

Table 4.6.3 Description of the "responseRuleGroup" attribute for the "ResponseProcessing" class

Table 5.1 A class definitions

Table 5.1.1 Description of the "href" characteristic for the "A" class

Table 5.1.2 Description of the "type" characteristic for the "A" class

Table 5.1.3 Description of the "inlineGroup" attribute for the "A" class

Table 5.2 ARIABase class definitions

Table 5.2.1 Description of the "role" characteristic for the "ARIABase" class

Table 5.2.2 Description of the "aria-controls" characteristic for the "ARIABase" class

Table 5.2.3 Description of the "aria-describedby" characteristic for the "ARIABase" class

Table 5.2.4 Description of the "aria-flowto" characteristic for the "ARIABase" class

Table 5.2.5 Description of the "aria-label" characteristic for the "ARIABase" class

Table 5.2.6 Description of the "aria-labelledby" characteristic for the "ARIABase" class

Table 5.2.7 Description of the "aria-level" characteristic for the "ARIABase" class

Table 5.2.8 Description of the "aria-live" characteristic for the "ARIABase" class

Table 5.2.9 Description of the "aria-orientation" characteristic for the "ARIABase" class

Table 5.2.10 Description of the "aria-owns" characteristic for the "ARIABase" class

Table 5.2.11 Description of the "aria-hidden" characteristic for the "ARIABase" class

Table 5.2.12 Description of the "aria-activedescendant" characteristic for the "ARIABase" class

Table 5.2.13 Description of the "aria-atomic" characteristic for the "ARIABase" class

Table 5.2.14 Description of the "aria-autocomplete" characteristic for the "ARIABase" class

Table 5.2.15 Description of the "aria-busy" characteristic for the "ARIABase" class

Table 5.2.16 Description of the "aria-checked" characteristic for the "ARIABase" class

Table 5.2.17 Description of the "aria-disabled" characteristic for the "ARIABase" class

Table 5.2.18 Description of the "aria-expanded" characteristic for the "ARIABase" class

Table 5.2.19 Description of the "aria-haspopup" characteristic for the "ARIABase" class

Table 5.2.20 Description of the "aria-invalid" characteristic for the "ARIABase" class

Table 5.2.21 Description of the "aria-multiline" characteristic for the "ARIABase" class

Table 5.2.22 Description of the "aria-multiselectable" characteristic for the "ARIABase" class

Table 5.2.23 Description of the "aria-posinset" characteristic for the "ARIABase" class

Table 5.2.24 Description of the "aria-pressed" characteristic for the "ARIABase" class

Table 5.2.25 Description of the "aria-readonly" characteristic for the "ARIABase" class

Table 5.2.26 Description of the "aria-relevant" characteristic for the "ARIABase" class

Table 5.2.27 Description of the "aria-required" characteristic for the "ARIABase" class

Table 5.2.28 Description of the "aria-selected" characteristic for the "ARIABase" class

Table 5.2.29 Description of the "aria-setsize" characteristic for the "ARIABase" class

Table 5.2.30 Description of the "aria-sort" characteristic for the "ARIABase" class

Table 5.2.31 Description of the "aria-valuemax" characteristic for the "ARIABase" class

Table 5.2.32 Description of the "aria-valuemin" characteristic for the "ARIABase" class

Table 5.2.33 Description of the "aria-valuenow" characteristic for the "ARIABase" class

Table 5.2.34 Description of the "aria-valuetext" characteristic for the "ARIABase" class

Table 5.2.35 Description of the "aria-modal" characteristic for the "ARIABase" class

Table 5.2.36 Description of the "aria-current" characteristic for the "ARIABase" class

Table 5.2.37 Description of the "aria-placeholder" characteristic for the "ARIABase" class

Table 5.2.38 Description of the "aria-colcount" characteristic for the "ARIABase" class

Table 5.2.39 Description of the "aria-rowcount" characteristic for the "ARIABase" class

Table 5.2.40 Description of the "aria-colindex" characteristic for the "ARIABase" class

Table 5.2.41 Description of the "aria-rowindex" characteristic for the "ARIABase" class

Table 5.2.42 Description of the "aria-colspan" characteristic for the "ARIABase" class

Table 5.2.43 Description of the "aria-rowspan" characteristic for the "ARIABase" class

Table 5.2.44 Description of the "aria-keyshortcuts" characteristic for the "ARIABase" class

Table 5.2.45 Description of the "aria-roledescription" characteristic for the "ARIABase" class

Table 5.2.46 Description of the "aria-errormessage" characteristic for the "ARIABase" class

Table 5.2.47 Description of the "aria-details" characteristic for the "ARIABase" class

Table 5.3 AdaptiveSelection class definitions

Table 5.3.1 Description of the "qti-adaptive-engine-ref" attribute for the "AdaptiveSelection" class

Table 5.3.2 Description of the "qti-adaptive-settings-ref" attribute for the "AdaptiveSelection" class

Table 5.3.3 Description of the "qti-usagedata-ref" attribute for the "AdaptiveSelection" class

Table 5.3.4 Description of the "qti-metadata-ref" attribute for the "AdaptiveSelection" class

Table 5.4 AnyN class definitions

Table 5.4.1 Description of the "min" characteristic for the "AnyN" class

Table 5.4.2 Description of the "max" characteristic for the "AnyN" class

Table 5.4.3 Description of the "logic" attribute for the "AnyN" class

Table 5.5 AreaMapping class definitions

Table 5.5.1 Description of the "lower-bound" characteristic for the "AreaMapping" class

Table 5.5.2 Description of the "upper-bound" characteristic for the "AreaMapping" class

Table 5.5.3 Description of the "default-value" characteristic for the "AreaMapping" class

Table 5.5.4 Description of the "qti-area-map-entry" attribute for the "AreaMapping" class

Table 5.6 AssessmentItemRef class definitions

Table 5.6.1 Description of the "identifier" characteristic for the "AssessmentItemRef" class

Table 5.6.2 Description of the "required" characteristic for the "AssessmentItemRef" class

Table 5.6.3 Description of the "fixed" characteristic for the "AssessmentItemRef" class

Table 5.6.4 Description of the "class" characteristic for the "AssessmentItemRef" class

Table 5.6.5 Description of the "href" characteristic for the "AssessmentItemRef" class

Table 5.6.6 Description of the "category" characteristic for the "AssessmentItemRef" class

Table 5.6.7 Description of the "dataExtension" characteristic for the "AssessmentItemRef" class

Table 5.6.8 Description of the "qti-pre-condition" attribute for the "AssessmentItemRef" class

Table 5.6.9 Description of the "qti-branch-rule" attribute for the "AssessmentItemRef" class

Table 5.6.10 Description of the "qti-item-session-control" attribute for the "AssessmentItemRef" class

Table 5.6.11 Description of the "qti-time-limits" attribute for the "AssessmentItemRef" class

Table 5.6.12 Description of the "qti-variable-mapping" attribute for the "AssessmentItemRef" class

Table 5.6.13 Description of the "qti-weight" attribute for the "AssessmentItemRef" class

Table 5.6.14 Description of the "qti-template-default" attribute for the "AssessmentItemRef" class

Table 5.7 AssociableHotspot class definitions

Table 5.7.1 Description of the "identifier" characteristic for the "AssociableHotspot" class

Table 5.7.2 Description of the "template-identifier" characteristic for the "AssociableHotspot" class

Table 5.7.3 Description of the "show-hide" characteristic for the "AssociableHotspot" class

Table 5.7.4 Description of the "match-group" characteristic for the "AssociableHotspot" class

Table 5.7.5 Description of the "shape" characteristic for the "AssociableHotspot" class

Table 5.7.6 Description of the "coords" characteristic for the "AssociableHotspot" class

Table 5.7.7 Description of the "hotspot-label" characteristic for the "AssociableHotspot" class

Table 5.7.8 Description of the "match-max" characteristic for the "AssociableHotspot" class

Table 5.7.9 Description of the "match-min" characteristic for the "AssociableHotspot" class

Table 5.8 AssociateInteraction class definitions

Table 5.8.1 Description of the "shuffle" characteristic for the "AssociateInteraction" class

Table 5.8.2 Description of the "max-associations" characteristic for the "AssociateInteraction" class

Table 5.8.3 Description of the "min-associations" characteristic for the "AssociateInteraction" class

Table 5.8.4 Description of the "qti-simple-associable-choice" attribute for the "AssociateInteraction" class

Table 5.9 Audio class definitions

Table 5.9.1 Description of the "src" characteristic for the "Audio" class

Table 5.9.2 Description of the "crossorigin" characteristic for the "Audio" class

Table 5.9.3 Description of the "preload" characteristic for the "Audio" class

Table 5.9.4 Description of the "autoplay" characteristic for the "Audio" class

Table 5.9.5 Description of the "mediagroup" characteristic for the "Audio" class

Table 5.9.6 Description of the "loop" characteristic for the "Audio" class

Table 5.9.7 Description of the "muted" characteristic for the "Audio" class

Table 5.9.8 Description of the "controls" characteristic for the "Audio" class

Table 5.9.9 Description of the "source" attribute for the "Audio" class

Table 5.9.10 Description of the "track" attribute for the "Audio" class

Table 5.10 BDI class definitions

Table 5.10.1 Description of the "flowContentModel" attribute for the "BDI" class

Table 5.11 BDO class definitions

Table 5.11.1 Description of the "title" characteristic for the "BDO" class

Table 5.11.2 Description of the "inlineContentModel" attribute for the "BDO" class

Table 5.12 BR class definitions

Table 5.13 BaseHTML5Flow class definitions

Table 5.13.1 Description of the "flowGroup" attribute for the "BaseHTML5Flow" class

Table 5.14 BaseHTML5Phrasing class definitions

Table 5.14.1 Description of the "phrasingContentModel" attribute for the "BaseHTML5Phrasing" class

Table 5.15 BasePromptInteraction class definitions

Table 5.15.1 Description of the "id" characteristic for the "BasePromptInteraction" class

Table 5.15.2 Description of the "class" characteristic for the "BasePromptInteraction" class

Table 5.15.3 Description of the "lang" characteristic for the "BasePromptInteraction" class

Table 5.15.4 Description of the "language" characteristic for the "BasePromptInteraction" class

Table 5.15.5 Description of the "label" characteristic for the "BasePromptInteraction" class

Table 5.15.6 Description of the "base" characteristic for the "BasePromptInteraction" class

Table 5.15.7 Description of the "response-identifier" characteristic for the "BasePromptInteraction" class

Table 5.15.8 Description of the "dir" characteristic for the "BasePromptInteraction" class

Table 5.15.9 Description of the "data-catalog-idref" characteristic for the "BasePromptInteraction" class

Table 5.15.10 Description of the "data-qti-suppress-tts" characteristic for the "BasePromptInteraction" class

Table 5.15.11 Description of the "dataExtension" characteristic for the "BasePromptInteraction" class

Table 5.15.12 Description of the "qti-prompt" attribute for the "BasePromptInteraction" class

Table 5.16 BaseSequence class definitions

Table 5.16.1 Description of the "id" characteristic for the "BaseSequence" class

Table 5.16.2 Description of the "class" characteristic for the "BaseSequence" class

Table 5.16.3 Description of the "lang" characteristic for the "BaseSequence" class

Table 5.16.4 Description of the "language" characteristic for the "BaseSequence" class

Table 5.16.5 Description of the "label" characteristic for the "BaseSequence" class

Table 5.16.6 Description of the "dir" characteristic for the "BaseSequence" class

Table 5.16.7 Description of the "data-catalog-idref" characteristic for the "BaseSequence" class

Table 5.16.8 Description of the "data-qti-suppress-tts" characteristic for the "BaseSequence" class

Table 5.16.9 Description of the "dataExtension" characteristic for the "BaseSequence" class

Table 5.17 BaseSequenceEmpty class definitions

Table 5.17.1 Description of the "id" characteristic for the "BaseSequenceEmpty" class

Table 5.17.2 Description of the "class" characteristic for the "BaseSequenceEmpty" class

Table 5.17.3 Description of the "lang" characteristic for the "BaseSequenceEmpty" class

Table 5.17.4 Description of the "language" characteristic for the "BaseSequenceEmpty" class

Table 5.17.5 Description of the "label" characteristic for the "BaseSequenceEmpty" class

Table 5.17.6 Description of the "dir" characteristic for the "BaseSequenceEmpty" class

Table 5.17.7 Description of the "data-catalog-idref" characteristic for the "BaseSequenceEmpty" class

Table 5.17.8 Description of the "data-qti-suppress-tts" characteristic for the "BaseSequenceEmpty" class

Table 5.17.9 Description of the "dataExtension" characteristic for the "BaseSequenceEmpty" class

Table 5.18 BaseSequenceFull class definitions

Table 5.18.1 Description of the "id" characteristic for the "BaseSequenceFull" class

Table 5.18.2 Description of the "class" characteristic for the "BaseSequenceFull" class

Table 5.18.3 Description of the "lang" characteristic for the "BaseSequenceFull" class

Table 5.18.4 Description of the "language" characteristic for the "BaseSequenceFull" class

Table 5.18.5 Description of the "label" characteristic for the "BaseSequenceFull" class

Table 5.18.6 Description of the "response-identifier" characteristic for the "BaseSequenceFull" class

Table 5.18.7 Description of the "base" characteristic for the "BaseSequenceFull" class

Table 5.18.8 Description of the "dir" characteristic for the "BaseSequenceFull" class

Table 5.18.9 Description of the "data-catalog-idref" characteristic for the "BaseSequenceFull" class

Table 5.18.10 Description of the "data-qti-suppress-tts" characteristic for the "BaseSequenceFull" class

Table 5.18.11 Description of the "dataExtension" characteristic for the "BaseSequenceFull" class

Table 5.19 BaseSequenceRIdent class definitions

Table 5.19.1 Description of the "id" characteristic for the "BaseSequenceRIdent" class

Table 5.19.2 Description of the "class" characteristic for the "BaseSequenceRIdent" class

Table 5.19.3 Description of the "lang" characteristic for the "BaseSequenceRIdent" class

Table 5.19.4 Description of the "language" characteristic for the "BaseSequenceRIdent" class

Table 5.19.5 Description of the "label" characteristic for the "BaseSequenceRIdent" class

Table 5.19.6 Description of the "response-identifier" characteristic for the "BaseSequenceRIdent" class

Table 5.19.7 Description of the "dir" characteristic for the "BaseSequenceRIdent" class

Table 5.19.8 Description of the "data-catalog-idref" characteristic for the "BaseSequenceRIdent" class

Table 5.19.9 Description of the "data-qti-suppress-tts" characteristic for the "BaseSequenceRIdent" class

Table 5.19.10 Description of the "dataExtension" characteristic for the "BaseSequenceRIdent" class

Table 5.20 BaseSequenceXBase class definitions

Table 5.20.1 Description of the "id" characteristic for the "BaseSequenceXBase" class

Table 5.20.2 Description of the "class" characteristic for the "BaseSequenceXBase" class

Table 5.20.3 Description of the "lang" characteristic for the "BaseSequenceXBase" class

Table 5.20.4 Description of the "language" characteristic for the "BaseSequenceXBase" class

Table 5.20.5 Description of the "label" characteristic for the "BaseSequenceXBase" class

Table 5.20.6 Description of the "base" characteristic for the "BaseSequenceXBase" class

Table 5.20.7 Description of the "dir" characteristic for the "BaseSequenceXBase" class

Table 5.20.8 Description of the "data-catalog-idref" characteristic for the "BaseSequenceXBase" class

Table 5.20.9 Description of the "data-qti-suppress-tts" characteristic for the "BaseSequenceXBase" class

Table 5.20.10 Description of the "data-ssml" characteristic for the "BaseSequenceXBase" class

Table 5.20.11 Description of the "dataExtension" characteristic for the "BaseSequenceXBase" class

Table 5.21 BaseSequenceXBaseEmpty class definitions

Table 5.21.1 Description of the "id" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.2 Description of the "class" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.3 Description of the "lang" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.4 Description of the "language" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.5 Description of the "label" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.6 Description of the "base" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.7 Description of the "dir" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.8 Description of the "data-catalog-idref" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.9 Description of the "data-qti-suppress-tts" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.21.10 Description of the "dataExtension" characteristic for the "BaseSequenceXBaseEmpty" class

Table 5.22 BlockQuote class definitions

Table 5.22.1 Description of the "cite" characteristic for the "BlockQuote" class

Table 5.22.2 Description of the "flowContent" attribute for the "BlockQuote" class

Table 5.23 BranchRule class definitions

Table 5.23.1 Description of the "target" characteristic for the "BranchRule" class

Table 5.23.2 Description of the "logic" attribute for the "BranchRule" class

Table 5.24 Calculator class definitions

Table 5.24.1 Description of the "qti-calculator-type" attribute for the "Calculator" class

Table 5.24.2 Description of the "qti-description" attribute for the "Calculator" class

Table 5.24.3 Description of the "qti-calculator-info" attribute for the "Calculator" class

Table 5.25 Caption class definitions

Table 5.25.1 Description of the "flowGroup" attribute for the "Caption" class

Table 5.26 Card class definitions

Table 5.26.1 Description of the "support" characteristic for the "Card" class

Table 5.26.2 Description of the "language" characteristic for the "Card" class

Table 5.26.3 Description of the "cardSelection" attribute for the "Card" class

Table 5.26.4 Description of the "qti-card-entry" attribute for the "Card" class

Table 5.27 CardEntry class definitions

Table 5.27.1 Description of the "language" characteristic for the "CardEntry" class

Table 5.27.2 Description of the "default" characteristic for the "CardEntry" class

Table 5.27.3 Description of the "dataExtension" characteristic for the "CardEntry" class

Table 5.27.4 Description of the "qti-html-content" attribute for the "CardEntry" class

Table 5.27.5 Description of the "qti-file-href" attribute for the "CardEntry" class

Table 5.28 Catalog class definitions

Table 5.28.1 Description of the "id" characteristic for the "Catalog" class

Table 5.28.2 Description of the "qti-card" attribute for the "Catalog" class

Table 5.29 CatalogInfo class definitions

Table 5.29.1 Description of the "qti-catalog" attribute for the "CatalogInfo" class

Table 5.30 ChoiceInteraction class definitions

Table 5.30.1 Description of the "shuffle" characteristic for the "ChoiceInteraction" class

Table 5.30.2 Description of the "max-choices" characteristic for the "ChoiceInteraction" class

Table 5.30.3 Description of the "min-choices" characteristic for the "ChoiceInteraction" class

Table 5.30.4 Description of the "orientation" characteristic for the "ChoiceInteraction" class

Table 5.30.5 Description of the "data-min-selections-message" characteristic for the "ChoiceInteraction" class

Table 5.30.6 Description of the "data-max-selections-message" characteristic for the "ChoiceInteraction" class

Table 5.30.7 Description of the "qti-simple-choice" attribute for the "ChoiceInteraction" class

Table 5.31 Col class definitions

Table 5.31.1 Description of the "span" characteristic for the "Col" class

Table 5.32 ColGroup class definitions

Table 5.32.1 Description of the "span" characteristic for the "ColGroup" class

Table 5.32.2 Description of the "col" attribute for the "ColGroup" class

Table 5.33 CompanionMaterialsInfo class definitions

Table 5.33.1 Description of the "qti-calculator" attribute for the "CompanionMaterialsInfo" class

Table 5.33.2 Description of the "qti-rule" attribute for the "CompanionMaterialsInfo" class

Table 5.33.3 Description of the "qti-protractor" attribute for the "CompanionMaterialsInfo" class

Table 5.33.4 Description of the "qti-digital-material" attribute for the "CompanionMaterialsInfo" class

Table 5.33.5 Description of the "qti-physical-material" attribute for the "CompanionMaterialsInfo" class

Table 5.33.6 Description of the "extensions" attribute for the "CompanionMaterialsInfo" class

Table 5.34 ContextDeclaration class definitions

Table 5.34.1 Description of the "identifier" characteristic for the "ContextDeclaration" class

Table 5.34.2 Description of the "cardinality" characteristic for the "ContextDeclaration" class

Table 5.34.3 Description of the "base-type" characteristic for the "ContextDeclaration" class

Table 5.34.4 Description of the "qti-default-value" attribute for the "ContextDeclaration" class

Table 5.35 CorrectResponse class definitions

Table 5.35.1 Description of the "interpretation" characteristic for the "CorrectResponse" class

Table 5.35.2 Description of the "qti-value" attribute for the "CorrectResponse" class

Table 5.36 CustomInteraction class definitions

Table 5.36.1 Description of the "extension" characteristic for the "CustomInteraction" class

Table 5.36.2 Description of the "extension" attribute for the "CustomInteraction" class

Table 5.37 CustomOperator class definitions

Table 5.37.1 Description of the "class" characteristic for the "CustomOperator" class

Table 5.37.2 Description of the "definition" characteristic for the "CustomOperator" class

Table 5.37.3 Description of the "extension" characteristic for the "CustomOperator" class

Table 5.37.4 Description of the "logic" attribute for the "CustomOperator" class

Table 5.37.5 Description of the "extension" attribute for the "CustomOperator" class

Table 5.38 DD class definitions

Table 5.38.1 Description of the "flowGroup" attribute for the "DD" class

Table 5.39 DL class definitions

Table 5.39.1 Description of the "dlSelection" attribute for the "DL" class

Table 5.40 DT class definitions

Table 5.40.1 Description of the "inlineGroup" attribute for the "DT" class

Table 5.41 DefaultValue class definitions

Table 5.41.1 Description of the "interpretation" characteristic for the "DefaultValue" class

Table 5.41.2 Description of the "qti-value" attribute for the "DefaultValue" class

Table 5.42 Details class definitions

Table 5.42.1 Description of the "open" characteristic for the "Details" class

Table 5.42.2 Description of the "summary" attribute for the "Details" class

Table 5.42.3 Description of the "flowContentModel" attribute for the "Details" class

Table 5.43 Div class definitions

Table 5.43.1 Description of the "divSelection" attribute for the "Div" class

Table 5.44 DrawingInteraction class definitions

Table 5.44.1 Description of the "object" attribute for the "DrawingInteraction" class

Table 5.44.2 Description of the "img" attribute for the "DrawingInteraction" class

Table 5.44.3 Description of the "picture" attribute for the "DrawingInteraction" class

Table 5.45 EndAttemptInteraction class definitions

Table 5.45.1 Description of the "response-identifier" characteristic for the "EndAttemptInteraction" class

Table 5.45.2 Description of the "title" characteristic for the "EndAttemptInteraction" class

Table 5.45.3 Description of the "count-attempt" characteristic for the "EndAttemptInteraction" class

Table 5.46 Equal class definitions

Table 5.46.1 Description of the "tolerance-mode" characteristic for the "Equal" class

Table 5.46.2 Description of the "tolerance" characteristic for the "Equal" class

Table 5.46.3 Description of the "include-lower-bound" characteristic for the "Equal" class

Table 5.46.4 Description of the "include-upper-bound" characteristic for the "Equal" class

Table 5.46.5 Description of the "logic" attribute for the "Equal" class

Table 5.47 EqualRounded class definitions

Table 5.47.1 Description of the "rounding-mode" characteristic for the "EqualRounded" class

Table 5.47.2 Description of the "figures" characteristic for the "EqualRounded" class

Table 5.47.3 Description of the "logic" attribute for the "EqualRounded" class

Table 5.48 ExtendedTextInteraction class definitions

Table 5.48.1 Description of the "base" characteristic for the "ExtendedTextInteraction" class

Table 5.48.2 Description of the "string-identifier" characteristic for the "ExtendedTextInteraction" class

Table 5.48.3 Description of the "expected-length" characteristic for the "ExtendedTextInteraction" class

Table 5.48.4 Description of the "pattern-mask" characteristic for the "ExtendedTextInteraction" class

Table 5.48.5 Description of the "placeholder-text" characteristic for the "ExtendedTextInteraction" class

Table 5.48.6 Description of the "max-strings" characteristic for the "ExtendedTextInteraction" class

Table 5.48.7 Description of the "min-strings" characteristic for the "ExtendedTextInteraction" class

Table 5.48.8 Description of the "expected-lines" characteristic for the "ExtendedTextInteraction" class

Table 5.48.9 Description of the "format" characteristic for the "ExtendedTextInteraction" class

Table 5.48.10 Description of the "data-patternmask-message" characteristic for the "ExtendedTextInteraction" class

Table 5.49 FeedbackBlock class definitions

Table 5.49.1 Description of the "outcome-identifier" characteristic for the "FeedbackBlock" class

Table 5.49.2 Description of the "identifier" characteristic for the "FeedbackBlock" class

Table 5.49.3 Description of the "show-hide" characteristic for the "FeedbackBlock" class

Table 5.49.4 Description of the "qti-stylesheet" attribute for the "FeedbackBlock" class

Table 5.49.5 Description of the "qti-content-body" attribute for the "FeedbackBlock" class

Table 5.49.6 Description of the "qti-catalog-info" attribute for the "FeedbackBlock" class

Table 5.50 FeedbackContentBody class definitions

Table 5.50.1 Description of the "feedbackBlockStatic" attribute for the "FeedbackContentBody" class

Table 5.51 FeedbackFlowContentBody class definitions

Table 5.51.1 Description of the "feedbackFlowStaticGroup" attribute for the "FeedbackFlowContentBody" class

Table 5.52 FeedbackInline class definitions

Table 5.52.1 Description of the "outcome-identifier" characteristic for the "FeedbackInline" class

Table 5.52.2 Description of the "identifier" characteristic for the "FeedbackInline" class

Table 5.52.3 Description of the "show-hide" characteristic for the "FeedbackInline" class

Table 5.52.4 Description of the "feedbackInlineGroup" attribute for the "FeedbackInline" class

Table 5.53 FieldValue class definitions

Table 5.53.1 Description of the "field-identifier" characteristic for the "FieldValue" class

Table 5.53.2 Description of the "logic" attribute for the "FieldValue" class

Table 5.54 Figure class definitions

Table 5.54.1 Description of the "figcaption" attribute for the "Figure" class

Table 5.54.2 Description of the "flowContentModel" attribute for the "Figure" class

Table 5.55 Gap class definitions

Table 5.55.1 Description of the "identifier" characteristic for the "Gap" class

Table 5.55.2 Description of the "template-identifier" characteristic for the "Gap" class

Table 5.55.3 Description of the "show-hide" characteristic for the "Gap" class

Table 5.55.4 Description of the "match-group" characteristic for the "Gap" class

Table 5.55.5 Description of the "required" characteristic for the "Gap" class

Table 5.56 GapImg class definitions

Table 5.56.1 Description of the "identifier" characteristic for the "GapImg" class

Table 5.56.2 Description of the "template-identifier" characteristic for the "GapImg" class

Table 5.56.3 Description of the "show-hide" characteristic for the "GapImg" class

Table 5.56.4 Description of the "match-group" characteristic for the "GapImg" class

Table 5.56.5 Description of the "match-max" characteristic for the "GapImg" class

Table 5.56.6 Description of the "match-min" characteristic for the "GapImg" class

Table 5.56.7 Description of the "object-label" characteristic for the "GapImg" class

Table 5.56.8 Description of the "top" characteristic for the "GapImg" class

Table 5.56.9 Description of the "left" characteristic for the "GapImg" class

Table 5.56.10 Description of the "object" attribute for the "GapImg" class

Table 5.56.11 Description of the "img" attribute for the "GapImg" class

Table 5.56.12 Description of the "picture" attribute for the "GapImg" class

Table 5.57 GapMatchInteraction class definitions

Table 5.57.1 Description of the "shuffle" characteristic for the "GapMatchInteraction" class

Table 5.57.2 Description of the "min-associations" characteristic for the "GapMatchInteraction" class

Table 5.57.3 Description of the "max-associations" characteristic for the "GapMatchInteraction" class

Table 5.57.4 Description of the "data-min-selections-message" characteristic for the "GapMatchInteraction" class

Table 5.57.5 Description of the "data-max-selections-message" characteristic for the "GapMatchInteraction" class

Table 5.57.6 Description of the "data-choices-container-width" characteristic for the "GapMatchInteraction" class

Table 5.57.7 Description of the "gapChoice" attribute for the "GapMatchInteraction" class

Table 5.57.8 Description of the "blockStaticGroup" attribute for the "GapMatchInteraction" class

Table 5.58 GapText class definitions

Table 5.58.1 Description of the "identifier" characteristic for the "GapText" class

Table 5.58.2 Description of the "template-identifier" characteristic for the "GapText" class

Table 5.58.3 Description of the "show-hide" characteristic for the "GapText" class

Table 5.58.4 Description of the "match-group" characteristic for the "GapText" class

Table 5.58.5 Description of the "match-max" characteristic for the "GapText" class

Table 5.58.6 Description of the "match-min" characteristic for the "GapText" class

Table 5.58.7 Description of the "inlineChoiceGroup" attribute for the "GapText" class

Table 5.59 GraphicAssociateInteraction class definitions

Table 5.59.1 Description of the "min-associations" characteristic for the "GraphicAssociateInteraction" class

Table 5.59.2 Description of the "max-associations" characteristic for the "GraphicAssociateInteraction" class

Table 5.59.3 Description of the "imageSelection" attribute for the "GraphicAssociateInteraction" class

Table 5.59.4 Description of the "qti-associable-hotspot" attribute for the "GraphicAssociateInteraction" class

Table 5.60 GraphicGapMatchInteraction class definitions

Table 5.60.1 Description of the "min-associations" characteristic for the "GraphicGapMatchInteraction" class

Table 5.60.2 Description of the "max-associations" characteristic for the "GraphicGapMatchInteraction" class

Table 5.60.3 Description of the "data-min-selections-message" characteristic for the "GraphicGapMatchInteraction" class

Table 5.60.4 Description of the "data-max-selections-message" characteristic for the "GraphicGapMatchInteraction" class

Table 5.60.5 Description of the "data-choices-container-width" characteristic for the "GraphicGapMatchInteraction" class

Table 5.60.6 Description of the "qti-prompt" attribute for the "GraphicGapMatchInteraction" class

Table 5.60.7 Description of the "imageSelection" attribute for the "GraphicGapMatchInteraction" class

Table 5.60.8 Description of the "gapChoice" attribute for the "GraphicGapMatchInteraction" class

Table 5.60.9 Description of the "qti-associable-hotspot" attribute for the "GraphicGapMatchInteraction" class

Table 5.61 GraphicOrderInteraction class definitions

Table 5.61.1 Description of the "min-choices" characteristic for the "GraphicOrderInteraction" class

Table 5.61.2 Description of the "max-choices" characteristic for the "GraphicOrderInteraction" class

Table 5.61.3 Description of the "qti-prompt" attribute for the "GraphicOrderInteraction" class

Table 5.61.4 Description of the "imageSelection" attribute for the "GraphicOrderInteraction" class

Table 5.61.5 Description of the "qti-hotspot-choice" attribute for the "GraphicOrderInteraction" class

Table 5.62 HR class definitions

Table 5.63 HTMLContent class definitions

Table 5.63.1 Description of the "language" characteristic for the "HTMLContent" class

Table 5.63.2 Description of the "dataExtension" characteristic for the "HTMLContent" class

Table 5.63.3 Description of the "htmlContentFlow" attribute for the "HTMLContent" class

Table 5.64 HTMLText class definitions

Table 5.64.1 Description of the "inlineGroup" attribute for the "HTMLText" class

Table 5.65 HotText class definitions

Table 5.65.1 Description of the "identifier" characteristic for the "HotText" class

Table 5.65.2 Description of the "template-identifier" characteristic for the "HotText" class

Table 5.65.3 Description of the "show-hide" characteristic for the "HotText" class

Table 5.65.4 Description of the "inlineChoiceGroup" attribute for the "HotText" class

Table 5.66 HotTextInteraction class definitions

Table 5.66.1 Description of the "max-choices" characteristic for the "HotTextInteraction" class

Table 5.66.2 Description of the "min-choices" characteristic for the "HotTextInteraction" class

Table 5.66.3 Description of the "data-min-selections-message" characteristic for the "HotTextInteraction" class

Table 5.66.4 Description of the "data-max-selections-message" characteristic for the "HotTextInteraction" class

Table 5.66.5 Description of the "blockStaticGroup" attribute for the "HotTextInteraction" class

Table 5.67 HotspotChoice class definitions

Table 5.67.1 Description of the "identifier" characteristic for the "HotspotChoice" class

Table 5.67.2 Description of the "template-identifier" characteristic for the "HotspotChoice" class

Table 5.67.3 Description of the "show-hide" characteristic for the "HotspotChoice" class

Table 5.67.4 Description of the "shape" characteristic for the "HotspotChoice" class

Table 5.67.5 Description of the "coords" characteristic for the "HotspotChoice" class

Table 5.67.6 Description of the "hotspot-label" characteristic for the "HotspotChoice" class

Table 5.68 HotspotInteraction class definitions

Table 5.68.1 Description of the "min-choices" characteristic for the "HotspotInteraction" class

Table 5.68.2 Description of the "max-choices" characteristic for the "HotspotInteraction" class

Table 5.68.3 Description of the "data-min-selections-message" characteristic for the "HotspotInteraction" class

Table 5.68.4 Description of the "data-max-selections-message" characteristic for the "HotspotInteraction" class

Table 5.68.5 Description of the "imageSelection" attribute for the "HotspotInteraction" class

Table 5.68.6 Description of the "qti-hotspot-choice" attribute for the "HotspotInteraction" class

Table 5.69 Img class definitions

Table 5.69.1 Description of the "src" characteristic for the "Img" class

Table 5.69.2 Description of the "alt" characteristic for the "Img" class

Table 5.69.3 Description of the "longdesc" characteristic for the "Img" class

Table 5.69.4 Description of the "height" characteristic for the "Img" class

Table 5.69.5 Description of the "width" characteristic for the "Img" class

Table 5.70 IncrementSI class definitions

Table 5.70.1 Description of the "qti-minor-increment" attribute for the "IncrementSI" class

Table 5.70.2 Description of the "qti-major-increment" attribute for the "IncrementSI" class

Table 5.71 IncrementUS class definitions

Table 5.71.1 Description of the "qti-minor-increment" attribute for the "IncrementUS" class

Table 5.71.2 Description of the "qti-major-increment" attribute for the "IncrementUS" class

Table 5.72 Index class definitions

Table 5.72.1 Description of the "n" characteristic for the "Index" class

Table 5.72.2 Description of the "logic" attribute for the "Index" class

Table 5.73 InlineChoice class definitions

Table 5.73.1 Description of the "identifier" characteristic for the "InlineChoice" class

Table 5.73.2 Description of the "fixed" characteristic for the "InlineChoice" class

Table 5.73.3 Description of the "template-identifier" characteristic for the "InlineChoice" class

Table 5.73.4 Description of the "show-hide" characteristic for the "InlineChoice" class

Table 5.73.5 Description of the "inlineChoiceGroup" attribute for the "InlineChoice" class

Table 5.74 InlineChoiceInteraction class definitions

Table 5.74.1 Description of the "shuffle" characteristic for the "InlineChoiceInteraction" class

Table 5.74.2 Description of the "required" characteristic for the "InlineChoiceInteraction" class

Table 5.74.3 Description of the "min-choices" characteristic for the "InlineChoiceInteraction" class

Table 5.74.4 Description of the "data-min-selections-message" characteristic for the "InlineChoiceInteraction" class

Table 5.74.5 Description of the "data-prompt" characteristic for the "InlineChoiceInteraction" class

Table 5.74.6 Description of the "qti-label" attribute for the "InlineChoiceInteraction" class

Table 5.74.7 Description of the "qti-inline-choice" attribute for the "InlineChoiceInteraction" class

Table 5.75 Inside class definitions

Table 5.75.1 Description of the "shape" characteristic for the "Inside" class

Table 5.75.2 Description of the "coords" characteristic for the "Inside" class

Table 5.75.3 Description of the "logic" attribute for the "Inside" class

Table 5.76 InteractionMarkup class definitions

Table 5.76.1 Description of the "flowStaticGroup" attribute for the "InteractionMarkup" class

Table 5.76.2 Description of the "template" attribute for the "InteractionMarkup" class

Table 5.77 InteractionModules class definitions

Table 5.77.1 Description of the "primary-configuration" characteristic for the "InteractionModules" class

Table 5.77.2 Description of the "secondary-configuration" characteristic for the "InteractionModules" class

Table 5.77.3 Description of the "qti-interaction-module" attribute for the "InteractionModules" class

Table 5.78 InterpolationTable class definitions

Table 5.78.1 Description of the "default-value" characteristic for the "InterpolationTable" class

Table 5.78.2 Description of the "qti-interpolation-table-entry" attribute for the "InterpolationTable" class

Table 5.79 ItemBody class definitions

Table 5.79.1 Description of the "id" characteristic for the "ItemBody" class

Table 5.79.2 Description of the "class" characteristic for the "ItemBody" class

Table 5.79.3 Description of the "language" characteristic for the "ItemBody" class

Table 5.79.4 Description of the "label" characteristic for the "ItemBody" class

Table 5.79.5 Description of the "dir" characteristic for the "ItemBody" class

Table 5.79.6 Description of the "data-catalog-idref" characteristic for the "ItemBody" class

Table 5.79.7 Description of the "itemBodySelect" attribute for the "ItemBody" class

Table 5.80 ItemFileInfo class definitions

Table 5.80.1 Description of the "mime-type" characteristic for the "ItemFileInfo" class

Table 5.80.2 Description of the "label" characteristic for the "ItemFileInfo" class

Table 5.80.3 Description of the "qti-file-href" attribute for the "ItemFileInfo" class

Table 5.80.4 Description of the "qti-resource-icon" attribute for the "ItemFileInfo" class

Table 5.81 LI class definitions

Table 5.81.1 Description of the "flowGroup" attribute for the "LI" class

Table 5.82 Label class definitions

Table 5.82.1 Description of the "inlineChoiceGroup" attribute for the "Label" class

Table 5.83 Logic0toMany class definitions

Table 5.83.1 Description of the "logic" attribute for the "Logic0toMany" class

Table 5.84 Logic1toMany class definitions

Table 5.84.1 Description of the "logic" attribute for the "Logic1toMany" class

Table 5.85 LogicPair class definitions

Table 5.85.1 Description of the "logic" attribute for the "LogicPair" class

Table 5.86 LogicSingle class definitions

Table 5.86.1 Description of the "logic" attribute for the "LogicSingle" class

Table 5.87 LookupOutcomeValue class definitions

Table 5.87.1 Description of the "identifier" characteristic for the "LookupOutcomeValue" class

Table 5.87.2 Description of the "expressionGroup" attribute for the "LookupOutcomeValue" class

Table 5.88 Mapping class definitions

Table 5.88.1 Description of the "lower-bound" characteristic for the "Mapping" class

Table 5.88.2 Description of the "upper-bound" characteristic for the "Mapping" class

Table 5.88.3 Description of the "default-value" characteristic for the "Mapping" class

Table 5.88.4 Description of the "qti-map-entry" attribute for the "Mapping" class

Table 5.89 MatchInteraction class definitions

Table 5.89.1 Description of the "shuffle" characteristic for the "MatchInteraction" class

Table 5.89.2 Description of the "max-associations" characteristic for the "MatchInteraction" class

Table 5.89.3 Description of the "min-associations" characteristic for the "MatchInteraction" class

Table 5.89.4 Description of the "data-min-selections-message" characteristic for the "MatchInteraction" class

Table 5.89.5 Description of the "data-max-selections-message" characteristic for the "MatchInteraction" class

Table 5.89.6 Description of the "data-first-column-header" characteristic for the "MatchInteraction" class

Table 5.89.7 Description of the "qti-simple-match-set" attribute for the "MatchInteraction" class

Table 5.90 MatchTable class definitions

Table 5.90.1 Description of the "default-value" characteristic for the "MatchTable" class

Table 5.90.2 Description of the "qti-match-table-entry" attribute for the "MatchTable" class

Table 5.91 MathOperator class definitions

Table 5.91.1 Description of the "name" characteristic for the "MathOperator" class

Table 5.91.2 Description of the "logic" attribute for the "MathOperator" class

Table 5.92 MediaInteraction class definitions

Table 5.92.1 Description of the "autostart" characteristic for the "MediaInteraction" class

Table 5.92.2 Description of the "min-plays" characteristic for the "MediaInteraction" class

Table 5.92.3 Description of the "max-plays" characteristic for the "MediaInteraction" class

Table 5.92.4 Description of the "loop" characteristic for the "MediaInteraction" class

Table 5.92.5 Description of the "coords" characteristic for the "MediaInteraction" class

Table 5.92.6 Description of the "object" attribute for the "MediaInteraction" class

Table 5.92.7 Description of the "audio" attribute for the "MediaInteraction" class

Table 5.92.8 Description of the "video" attribute for the "MediaInteraction" class

Table 5.93 ModalFeedback class definitions

Table 5.93.1 Description of the "outcome-identifier" characteristic for the "ModalFeedback" class

Table 5.93.2 Description of the "show-hide" characteristic for the "ModalFeedback" class

Table 5.93.3 Description of the "identifier" characteristic for the "ModalFeedback" class

Table 5.93.4 Description of the "title" characteristic for the "ModalFeedback" class

Table 5.93.5 Description of the "dataExtension" characteristic for the "ModalFeedback" class

Table 5.93.6 Description of the "qti-stylesheet" attribute for the "ModalFeedback" class

Table 5.93.7 Description of the "qti-content-body" attribute for the "ModalFeedback" class

Table 5.93.8 Description of the "qti-catalog-info" attribute for the "ModalFeedback" class

Table 5.94 NumericLogic1toMany class definitions

Table 5.94.1 Description of the "logic" attribute for the "NumericLogic1toMany" class

Table 5.95 OUL class definitions

Table 5.95.1 Description of the "li" attribute for the "OUL" class

Table 5.96 Object class definitions

Table 5.96.1 Description of the "data" characteristic for the "Object" class

Table 5.96.2 Description of the "type" characteristic for the "Object" class

Table 5.96.3 Description of the "width" characteristic for the "Object" class

Table 5.96.4 Description of the "height" characteristic for the "Object" class

Table 5.96.5 Description of the "objectFlowGroup" attribute for the "Object" class

Table 5.97 OrderInteraction class definitions

Table 5.97.1 Description of the "shuffle" characteristic for the "OrderInteraction" class

Table 5.97.2 Description of the "min-choices" characteristic for the "OrderInteraction" class

Table 5.97.3 Description of the "max-choices" characteristic for the "OrderInteraction" class

Table 5.97.4 Description of the "orientation" characteristic for the "OrderInteraction" class

Table 5.97.5 Description of the "data-min-selections-message" characteristic for the "OrderInteraction" class

Table 5.97.6 Description of the "data-max-selections-message" characteristic for the "OrderInteraction" class

Table 5.97.7 Description of the "data-choices-container-width" characteristic for the "OrderInteraction" class

Table 5.97.8 Description of the "qti-simple-choice" attribute for the "OrderInteraction" class

Table 5.98 Ordering class definitions

Table 5.98.1 Description of the "shuffle" characteristic for the "Ordering" class

Table 5.98.2 Description of the "extension" characteristic for the "Ordering" class

Table 5.98.3 Description of the "extensions" attribute for the "Ordering" class

Table 5.99 OutcomeCondition class definitions

Table 5.99.1 Description of the "qti-outcome-if" attribute for the "OutcomeCondition" class

Table 5.99.2 Description of the "qti-outcome-else-if" attribute for the "OutcomeCondition" class

Table 5.99.3 Description of the "qti-outcome-else" attribute for the "OutcomeCondition" class

Table 5.100 OutcomeElse class definitions

Table 5.100.1 Description of the "outcomeRule" attribute for the "OutcomeElse" class

Table 5.101 OutcomeIf class definitions

Table 5.101.1 Description of the "expressionGroup" attribute for the "OutcomeIf" class

Table 5.101.2 Description of the "outcomeRule" attribute for the "OutcomeIf" class

Table 5.102 OutcomeProcessing class definitions

Table 5.102.1 Description of the "outcomeRule" attribute for the "OutcomeProcessing" class

Table 5.103 OutcomeProcessingFragment class definitions

Table 5.103.1 Description of the "outcomeRule" attribute for the "OutcomeProcessingFragment" class

Table 5.104 PatternMatch class definitions

Table 5.104.1 Description of the "pattern" characteristic for the "PatternMatch" class

Table 5.104.2 Description of the "logic" attribute for the "PatternMatch" class

Table 5.105 Picture class definitions

Table 5.105.1 Description of the "source" attribute for the "Picture" class

Table 5.105.2 Description of the "img" attribute for the "Picture" class

Table 5.106 PortableCustomInteraction class definitions

Table 5.106.1 Description of the "custom-interaction-type-identifier" characteristic for the "PortableCustomInteraction" class

Table 5.106.2 Description of the "module" characteristic for the "PortableCustomInteraction" class

Table 5.106.3 Description of the "qti-interaction-modules" attribute for the "PortableCustomInteraction" class

Table 5.106.4 Description of the "qti-interaction-markup" attribute for the "PortableCustomInteraction" class

Table 5.106.5 Description of the "qti-template-variable" attribute for the "PortableCustomInteraction" class

Table 5.106.6 Description of the "qti-context-variable" attribute for the "PortableCustomInteraction" class

Table 5.107 PositionObjectInteraction class definitions

Table 5.107.1 Description of the "center-point" characteristic for the "PositionObjectInteraction" class

Table 5.107.2 Description of the "min-choices" characteristic for the "PositionObjectInteraction" class

Table 5.107.3 Description of the "max-choices" characteristic for the "PositionObjectInteraction" class

Table 5.107.4 Description of the "object" attribute for the "PositionObjectInteraction" class

Table 5.107.5 Description of the "img" attribute for the "PositionObjectInteraction" class

Table 5.107.6 Description of the "picture" attribute for the "PositionObjectInteraction" class

Table 5.108 PositionObjectStage class definitions

Table 5.108.1 Description of the "id" characteristic for the "PositionObjectStage" class

Table 5.108.2 Description of the "dataExtension" characteristic for the "PositionObjectStage" class

Table 5.108.3 Description of the "imageSelection" attribute for the "PositionObjectStage" class

Table 5.108.4 Description of the "qti-position-object-interaction" attribute for the "PositionObjectStage" class

Table 5.109 Prompt class definitions

Table 5.109.1 Description of the "promptStaticGroup" attribute for the "Prompt" class

Table 5.110 Protractor class definitions

Table 5.110.1 Description of the "qti-description" attribute for the "Protractor" class

Table 5.110.2 Description of the "qti-increment" attribute for the "Protractor" class

Table 5.111 Q class definitions

Table 5.111.1 Description of the "cite" characteristic for the "Q" class

Table 5.111.2 Description of the "inlineGroup" attribute for the "Q" class

Table 5.112 RTC class definitions

Table 5.112.1 Description of the "phrasingContentModel" attribute for the "RTC" class

Table 5.112.2 Description of the "rt" attribute for the "RTC" class

Table 5.113 Repeat class definitions

Table 5.113.1 Description of the "number-repeats" characteristic for the "Repeat" class

Table 5.113.2 Description of the "logic" attribute for the "Repeat" class

Table 5.114 ResponseCondition class definitions

Table 5.114.1 Description of the "qti-response-if" attribute for the "ResponseCondition" class

Table 5.114.2 Description of the "qti-response-else-if" attribute for the "ResponseCondition" class

Table 5.114.3 Description of the "qti-response-else" attribute for the "ResponseCondition" class

Table 5.115 ResponseDeclaration class definitions

Table 5.115.1 Description of the "identifier" characteristic for the "ResponseDeclaration" class

Table 5.115.2 Description of the "cardinality" characteristic for the "ResponseDeclaration" class

Table 5.115.3 Description of the "base-type" characteristic for the "ResponseDeclaration" class

Table 5.115.4 Description of the "qti-default-value" attribute for the "ResponseDeclaration" class

Table 5.115.5 Description of the "qti-correct-response" attribute for the "ResponseDeclaration" class

Table 5.115.6 Description of the "qti-mapping" attribute for the "ResponseDeclaration" class

Table 5.115.7 Description of the "qti-area-mapping" attribute for the "ResponseDeclaration" class

Table 5.116 ResponseElse class definitions

Table 5.116.1 Description of the "responseRuleGroup" attribute for the "ResponseElse" class

Table 5.117 ResponseIf class definitions

Table 5.117.1 Description of the "expressionGroup" attribute for the "ResponseIf" class

Table 5.117.2 Description of the "responseRuleGroup" attribute for the "ResponseIf" class

Table 5.118 ResponseProcessingFragment class definitions

Table 5.118.1 Description of the "responseRuleGroup" attribute for the "ResponseProcessingFragment" class

Table 5.119 RoundTo class definitions

Table 5.119.1 Description of the "rounding-mode" characteristic for the "RoundTo" class

Table 5.119.2 Description of the "figures" characteristic for the "RoundTo" class

Table 5.119.3 Description of the "logic" attribute for the "RoundTo" class

Table 5.120 RubricBlock class definitions

Table 5.120.1 Description of the "use" characteristic for the "RubricBlock" class

Table 5.120.2 Description of the "view" characteristic for the "RubricBlock" class

Table 5.120.3 Description of the "qti-stylesheet" attribute for the "RubricBlock" class

Table 5.120.4 Description of the "qti-content-body" attribute for the "RubricBlock" class

Table 5.120.5 Description of the "qti-catalog-info" attribute for the "RubricBlock" class

Table 5.121 RubricBlockContentBody class definitions

Table 5.121.1 Description of the "contentModel" attribute for the "RubricBlockContentBody" class

Table 5.122 RubricBlockTemplateBlock class definitions

Table 5.122.1 Description of the "template-identifier" characteristic for the "RubricBlockTemplateBlock" class

Table 5.122.2 Description of the "show-hide" characteristic for the "RubricBlockTemplateBlock" class

Table 5.122.3 Description of the "identifier" characteristic for the "RubricBlockTemplateBlock" class

Table 5.122.4 Description of the "qti-stylesheet" attribute for the "RubricBlockTemplateBlock" class

Table 5.122.5 Description of the "qti-content-body" attribute for the "RubricBlockTemplateBlock" class

Table 5.122.6 Description of the "qti-catalog-info" attribute for the "RubricBlockTemplateBlock" class

Table 5.123 RubricBlockTemplateBlockContentBody class definitions

Table 5.123.1 Description of the "rtBlockContentModel" attribute for the "RubricBlockTemplateBlockContentBody" class

Table 5.124 RubricBlockTemplateInline class definitions

Table 5.124.1 Description of the "template-identifier" characteristic for the "RubricBlockTemplateInline" class

Table 5.124.2 Description of the "show-hide" characteristic for the "RubricBlockTemplateInline" class

Table 5.124.3 Description of the "identifier" characteristic for the "RubricBlockTemplateInline" class

Table 5.124.4 Description of the "rtInlineStaticGroup" attribute for the "RubricBlockTemplateInline" class

Table 5.125 Ruby class definitions

Table 5.125.1 Description of the "rubySelection" attribute for the "Ruby" class

Table 5.126 Rule class definitions

Table 5.126.1 Description of the "qti-description" attribute for the "Rule" class

Table 5.126.2 Description of the "qti-rule-system" attribute for the "Rule" class

Table 5.127 SIRuleSystem class definitions

Table 5.127.1 Description of the "qti-minimum-length" attribute for the "SIRuleSystem" class

Table 5.127.2 Description of the "qti-minor-increment" attribute for the "SIRuleSystem" class

Table 5.127.3 Description of the "qti-major-increment" attribute for the "SIRuleSystem" class

Table 5.128 SelectPointInteraction class definitions

Table 5.128.1 Description of the "min-choices" characteristic for the "SelectPointInteraction" class

Table 5.128.2 Description of the "max-choices" characteristic for the "SelectPointInteraction" class

Table 5.128.3 Description of the "object" attribute for the "SelectPointInteraction" class

Table 5.128.4 Description of the "img" attribute for the "SelectPointInteraction" class

Table 5.128.5 Description of the "picture" attribute for the "SelectPointInteraction" class

Table 5.129 Selection class definitions

Table 5.129.1 Description of the "select" characteristic for the "Selection" class

Table 5.129.2 Description of the "with-replacement" characteristic for the "Selection" class

Table 5.129.3 Description of the "extension" characteristic for the "Selection" class

Table 5.129.4 Description of the "extensions" attribute for the "Selection" class

Table 5.130 SetValue class definitions

Table 5.130.1 Description of the "identifier" characteristic for the "SetValue" class

Table 5.130.2 Description of the "expressionGroup" attribute for the "SetValue" class

Table 5.131 SimpleAssociableChoice class definitions

Table 5.131.1 Description of the "identifier" characteristic for the "SimpleAssociableChoice" class

Table 5.131.2 Description of the "fixed" characteristic for the "SimpleAssociableChoice" class

Table 5.131.3 Description of the "template-identifier" characteristic for the "SimpleAssociableChoice" class

Table 5.131.4 Description of the "show-hide" characteristic for the "SimpleAssociableChoice" class

Table 5.131.5 Description of the "match-group" characteristic for the "SimpleAssociableChoice" class

Table 5.131.6 Description of the "match-max" characteristic for the "SimpleAssociableChoice" class

Table 5.131.7 Description of the "match-min" characteristic for the "SimpleAssociableChoice" class

Table 5.131.8 Description of the "flowStaticGroup" attribute for the "SimpleAssociableChoice" class

Table 5.132 SimpleChoice class definitions

Table 5.132.1 Description of the "identifier" characteristic for the "SimpleChoice" class

Table 5.132.2 Description of the "fixed" characteristic for the "SimpleChoice" class

Table 5.132.3 Description of the "template-identifier" characteristic for the "SimpleChoice" class

Table 5.132.4 Description of the "show-hide" characteristic for the "SimpleChoice" class

Table 5.132.5 Description of the "flowStaticGroup" attribute for the "SimpleChoice" class

Table 5.133 SimpleMatchSet class definitions

Table 5.133.1 Description of the "id" characteristic for the "SimpleMatchSet" class

Table 5.133.2 Description of the "dataExtension" characteristic for the "SimpleMatchSet" class

Table 5.133.3 Description of the "qti-simple-associable-choice" attribute for the "SimpleMatchSet" class

Table 5.134 SliderInteraction class definitions

Table 5.134.1 Description of the "lower-bound" characteristic for the "SliderInteraction" class

Table 5.134.2 Description of the "upper-bound" characteristic for the "SliderInteraction" class

Table 5.134.3 Description of the "step" characteristic for the "SliderInteraction" class

Table 5.134.4 Description of the "step-label" characteristic for the "SliderInteraction" class

Table 5.134.5 Description of the "orientation" characteristic for the "SliderInteraction" class

Table 5.134.6 Description of the "reverse" characteristic for the "SliderInteraction" class

Table 5.135 Source class definitions

Table 5.135.1 Description of the "src" characteristic for the "Source" class

Table 5.135.2 Description of the "type" characteristic for the "Source" class

Table 5.135.3 Description of the "srcset" characteristic for the "Source" class

Table 5.135.4 Description of the "media" characteristic for the "Source" class

Table 5.135.5 Description of the "sizes" characteristic for the "Source" class

Table 5.136 StatsOperator class definitions

Table 5.136.1 Description of the "name" characteristic for the "StatsOperator" class

Table 5.136.2 Description of the "logic" attribute for the "StatsOperator" class

Table 5.137 StimulusBody class definitions

Table 5.137.1 Description of the "selectStimulus" attribute for the "StimulusBody" class

Table 5.138 StringMatch class definitions

Table 5.138.1 Description of the "case-sensitive" characteristic for the "StringMatch" class

Table 5.138.2 Description of the "substring" characteristic for the "StringMatch" class

Table 5.138.3 Description of the "logic" attribute for the "StringMatch" class

Table 5.139 Substring class definitions

Table 5.139.1 Description of the "case-sensitive" characteristic for the "Substring" class

Table 5.139.2 Description of the "logic" attribute for the "Substring" class

Table 5.140 TDH class definitions

Table 5.140.1 Description of the "headers" characteristic for the "TDH" class

Table 5.140.2 Description of the "scope" characteristic for the "TDH" class

Table 5.140.3 Description of the "abbr" characteristic for the "TDH" class

Table 5.140.4 Description of the "axis" characteristic for the "TDH" class

Table 5.140.5 Description of the "rowspan" characteristic for the "TDH" class

Table 5.140.6 Description of the "colspan" characteristic for the "TDH" class

Table 5.140.7 Description of the "align" characteristic for the "TDH" class

Table 5.140.8 Description of the "valign" characteristic for the "TDH" class

Table 5.140.9 Description of the "flowGroup" attribute for the "TDH" class

Table 5.141 TR class definitions

Table 5.141.1 Description of the "tableCellGroup" attribute for the "TR" class

Table 5.142 Table class definitions

Table 5.142.1 Description of the "summary" characteristic for the "Table" class

Table 5.142.2 Description of the "caption" attribute for the "Table" class

Table 5.142.3 Description of the "col" attribute for the "Table" class

Table 5.142.4 Description of the "colgroup" attribute for the "Table" class

Table 5.142.5 Description of the "thead" attribute for the "Table" class

Table 5.142.6 Description of the "tfoot" attribute for the "Table" class

Table 5.142.7 Description of the "tbody" attribute for the "Table" class

Table 5.142.8 Description of the "tr" attribute for the "Table" class

Table 5.143 TablePart class definitions

Table 5.143.1 Description of the "tr" attribute for the "TablePart" class

Table 5.144 Template class definitions

Table 5.144.1 Description of the "extensions" attribute for the "Template" class

Table 5.145 TemplateBlock class definitions

Table 5.145.1 Description of the "template-identifier" characteristic for the "TemplateBlock" class

Table 5.145.2 Description of the "show-hide" characteristic for the "TemplateBlock" class

Table 5.145.3 Description of the "identifier" characteristic for the "TemplateBlock" class

Table 5.146 TemplateBlockContent class definitions

Table 5.146.1 Description of the "qti-stylesheet" attribute for the "TemplateBlockContent" class

Table 5.146.2 Description of the "qti-content-body" attribute for the "TemplateBlockContent" class

Table 5.146.3 Description of the "qti-catalog-info" attribute for the "TemplateBlockContent" class

Table 5.147 TemplateBlockContentBody class definitions

Table 5.147.1 Description of the "fatBlockStatic" attribute for the "TemplateBlockContentBody" class

Table 5.148 TemplateBlockFeedbackBlock class definitions

Table 5.148.1 Description of the "outcome-identifier" characteristic for the "TemplateBlockFeedbackBlock" class

Table 5.148.2 Description of the "show-hide" characteristic for the "TemplateBlockFeedbackBlock" class

Table 5.148.3 Description of the "identifier" characteristic for the "TemplateBlockFeedbackBlock" class

Table 5.149 TemplateCondition class definitions

Table 5.149.1 Description of the "qti-template-if" attribute for the "TemplateCondition" class

Table 5.149.2 Description of the "qti-template-else-if" attribute for the "TemplateCondition" class

Table 5.149.3 Description of the "qti-template-else" attribute for the "TemplateCondition" class

Table 5.150 TemplateConstraint class definitions

Table 5.150.1 Description of the "expressionGroup" attribute for the "TemplateConstraint" class

Table 5.151 TemplateDeclaration class definitions

Table 5.151.1 Description of the "identifier" characteristic for the "TemplateDeclaration" class

Table 5.151.2 Description of the "cardinality" characteristic for the "TemplateDeclaration" class

Table 5.151.3 Description of the "base-type" characteristic for the "TemplateDeclaration" class

Table 5.151.4 Description of the "param-variable" characteristic for the "TemplateDeclaration" class

Table 5.151.5 Description of the "math-variable" characteristic for the "TemplateDeclaration" class

Table 5.151.6 Description of the "qti-default-value" attribute for the "TemplateDeclaration" class

Table 5.152 TemplateDefault class definitions

Table 5.152.1 Description of the "template-identifier" characteristic for the "TemplateDefault" class

Table 5.152.2 Description of the "expressionGroup" attribute for the "TemplateDefault" class

Table 5.153 TemplateElse class definitions

Table 5.153.1 Description of the "templateRuleGroup" attribute for the "TemplateElse" class

Table 5.154 TemplateIf class definitions

Table 5.154.1 Description of the "expressionGroup" attribute for the "TemplateIf" class

Table 5.154.2 Description of the "templateRuleGroup" attribute for the "TemplateIf" class

Table 5.155 TemplateInline class definitions

Table 5.155.1 Description of the "template-identifier" characteristic for the "TemplateInline" class

Table 5.155.2 Description of the "show-hide" characteristic for the "TemplateInline" class

Table 5.155.3 Description of the "identifier" characteristic for the "TemplateInline" class

Table 5.155.4 Description of the "inlineStaticGroup" attribute for the "TemplateInline" class

Table 5.156 TemplateProcessing class definitions

Table 5.156.1 Description of the "templateRuleGroup" attribute for the "TemplateProcessing" class

Table 5.157 TestFeedback class definitions

Table 5.157.1 Description of the "access" characteristic for the "TestFeedback" class

Table 5.157.2 Description of the "outcome-identifier" characteristic for the "TestFeedback" class

Table 5.157.3 Description of the "show-hide" characteristic for the "TestFeedback" class

Table 5.157.4 Description of the "identifier" characteristic for the "TestFeedback" class

Table 5.157.5 Description of the "title" characteristic for the "TestFeedback" class

Table 5.157.6 Description of the "dataExtension" characteristic for the "TestFeedback" class

Table 5.157.7 Description of the "qti-stylesheet" attribute for the "TestFeedback" class

Table 5.157.8 Description of the "qti-content-body" attribute for the "TestFeedback" class

Table 5.157.9 Description of the "qti-catalog-info" attribute for the "TestFeedback" class

Table 5.158 TestFeedbackFlowContentBody class definitions

Table 5.158.1 Description of the "feedbackFlowStaticGroup" attribute for the "TestFeedbackFlowContentBody" class

Table 5.159 TestPart class definitions

Table 5.159.1 Description of the "identifier" characteristic for the "TestPart" class

Table 5.159.2 Description of the "title" characteristic for the "TestPart" class

Table 5.159.3 Description of the "class" characteristic for the "TestPart" class

Table 5.159.4 Description of the "navigation-mode" characteristic for the "TestPart" class

Table 5.159.5 Description of the "submission-mode" characteristic for the "TestPart" class

Table 5.159.6 Description of the "dataExtension" characteristic for the "TestPart" class

Table 5.159.7 Description of the "qti-pre-condition" attribute for the "TestPart" class

Table 5.159.8 Description of the "qti-branch-rule" attribute for the "TestPart" class

Table 5.159.9 Description of the "qti-item-session-control" attribute for the "TestPart" class

Table 5.159.10 Description of the "qti-time-limits" attribute for the "TestPart" class

Table 5.159.11 Description of the "qti-rubric-block" attribute for the "TestPart" class

Table 5.159.12 Description of the "assessmentSectionSelection" attribute for the "TestPart" class

Table 5.159.13 Description of the "qti-test-feedback" attribute for the "TestPart" class

Table 5.160 TestRubricBlock class definitions

Table 5.160.1 Description of the "view" characteristic for the "TestRubricBlock" class

Table 5.160.2 Description of the "use" characteristic for the "TestRubricBlock" class

Table 5.160.3 Description of the "qti-stylesheet" attribute for the "TestRubricBlock" class

Table 5.160.4 Description of the "qti-content-body" attribute for the "TestRubricBlock" class

Table 5.160.5 Description of the "qti-catalog-info" attribute for the "TestRubricBlock" class

Table 5.160.6 Description of the "qti-printed-variable" attribute for the "TestRubricBlock" class

Table 5.161 TestRubricBlockContentBody class definitions

Table 5.161.1 Description of the "contentModel" attribute for the "TestRubricBlockContentBody" class

Table 5.162 TextEntryInteraction class definitions

Table 5.162.1 Description of the "response-identifier" characteristic for the "TextEntryInteraction" class

Table 5.162.2 Description of the "base" characteristic for the "TextEntryInteraction" class

Table 5.162.3 Description of the "string-identifier" characteristic for the "TextEntryInteraction" class

Table 5.162.4 Description of the "expected-length" characteristic for the "TextEntryInteraction" class

Table 5.162.5 Description of the "pattern-mask" characteristic for the "TextEntryInteraction" class

Table 5.162.6 Description of the "placeholder-text" characteristic for the "TextEntryInteraction" class

Table 5.162.7 Description of the "format" characteristic for the "TextEntryInteraction" class

Table 5.162.8 Description of the "data-patternmask-message" characteristic for the "TextEntryInteraction" class

Table 5.163 Track class definitions

Table 5.163.1 Description of the "kind" characteristic for the "Track" class

Table 5.163.2 Description of the "src" characteristic for the "Track" class

Table 5.163.3 Description of the "srclang" characteristic for the "Track" class

Table 5.163.4 Description of the "default" characteristic for the "Track" class

Table 5.164 USRuleSystem class definitions

Table 5.164.1 Description of the "qti-minimum-length" attribute for the "USRuleSystem" class

Table 5.164.2 Description of the "qti-minor-increment" attribute for the "USRuleSystem" class

Table 5.164.3 Description of the "qti-major-increment" attribute for the "USRuleSystem" class

Table 5.165 UploadInteraction class definitions

Table 5.165.1 Description of the "type" characteristic for the "UploadInteraction" class

Table 5.166 Video class definitions

Table 5.166.1 Description of the "src" characteristic for the "Video" class

Table 5.166.2 Description of the "crossorigin" characteristic for the "Video" class

Table 5.166.3 Description of the "preload" characteristic for the "Video" class

Table 5.166.4 Description of the "autoplay" characteristic for the "Video" class

Table 5.166.5 Description of the "mediagroup" characteristic for the "Video" class

Table 5.166.6 Description of the "loop" characteristic for the "Video" class

Table 5.166.7 Description of the "muted" characteristic for the "Video" class

Table 5.166.8 Description of the "controls" characteristic for the "Video" class

Table 5.166.9 Description of the "poster" characteristic for the "Video" class

Table 5.166.10 Description of the "width" characteristic for the "Video" class

Table 5.166.11 Description of the "height" characteristic for the "Video" class

Table 5.166.12 Description of the "source" attribute for the "Video" class

Table 5.166.13 Description of the "track" attribute for the "Video" class

Table 6.1 Adaptive class definitions

Table 6.1.1 Description of the "qti-adaptive-selection" attribute for the "Adaptive" class

Table 6.1.2 Description of the "selectOrderSelection" attribute for the "Adaptive" class

Table 6.2 AssessmentSectionSelection class definitions

Table 6.2.1 Description of the "qti-assessment-section" attribute for the "AssessmentSectionSelection" class

Table 6.2.2 Description of the "qti-assessment-section-ref" attribute for the "AssessmentSectionSelection" class

Table 6.3 BlockContentModel class definitions

Table 6.3.1 Description of the "pre" attribute for the "BlockContentModel" class

Table 6.3.2 Description of the "h1" attribute for the "BlockContentModel" class

Table 6.3.3 Description of the "h2" attribute for the "BlockContentModel" class

Table 6.3.4 Description of the "h3" attribute for the "BlockContentModel" class

Table 6.3.5 Description of the "h4" attribute for the "BlockContentModel" class

Table 6.3.6 Description of the "h5" attribute for the "BlockContentModel" class

Table 6.3.7 Description of the "h6" attribute for the "BlockContentModel" class

Table 6.3.8 Description of the "p" attribute for the "BlockContentModel" class

Table 6.3.9 Description of the "address" attribute for the "BlockContentModel" class

Table 6.3.10 Description of the "dl" attribute for the "BlockContentModel" class

Table 6.3.11 Description of the "ol" attribute for the "BlockContentModel" class

Table 6.3.12 Description of the "ul" attribute for the "BlockContentModel" class

Table 6.3.13 Description of the "hr" attribute for the "BlockContentModel" class

Table 6.3.14 Description of the "blockquote" attribute for the "BlockContentModel" class

Table 6.3.15 Description of the "table" attribute for the "BlockContentModel" class

Table 6.3.16 Description of the "div" attribute for the "BlockContentModel" class

Table 6.3.17 Description of the "article" attribute for the "BlockContentModel" class

Table 6.3.18 Description of the "aside" attribute for the "BlockContentModel" class

Table 6.3.19 Description of the "audio" attribute for the "BlockContentModel" class

Table 6.3.20 Description of the "figure" attribute for the "BlockContentModel" class

Table 6.3.21 Description of the "footer" attribute for the "BlockContentModel" class

Table 6.3.22 Description of the "header" attribute for the "BlockContentModel" class

Table 6.3.23 Description of the "nav" attribute for the "BlockContentModel" class

Table 6.3.24 Description of the "section" attribute for the "BlockContentModel" class

Table 6.3.25 Description of the "video" attribute for the "BlockContentModel" class

Table 6.4 BlockGroup class definitions

Table 6.4.1 Description of the "qti-position-object-stage" attribute for the "BlockGroup" class

Table 6.4.2 Description of the "qti-custom-interaction" attribute for the "BlockGroup" class

Table 6.4.3 Description of the "qti-portable-custom-interaction" attribute for the "BlockGroup" class

Table 6.4.4 Description of the "qti-drawing-interaction" attribute for the "BlockGroup" class

Table 6.4.5 Description of the "qti-gap-match-interaction" attribute for the "BlockGroup" class

Table 6.4.6 Description of the "qti-match-interaction" attribute for the "BlockGroup" class

Table 6.4.7 Description of the "qti-graphic-gap-match-interaction" attribute for the "BlockGroup" class

Table 6.4.8 Description of the "qti-hotspot-interaction" attribute for the "BlockGroup" class

Table 6.4.9 Description of the "qti-graphic-order-interaction" attribute for the "BlockGroup" class

Table 6.4.10 Description of the "qti-select-point-interaction" attribute for the "BlockGroup" class

Table 6.4.11 Description of the "qti-graphic-associate-interaction" attribute for the "BlockGroup" class

Table 6.4.12 Description of the "qti-slider-interaction" attribute for the "BlockGroup" class

Table 6.4.13 Description of the "qti-choice-interaction" attribute for the "BlockGroup" class

Table 6.4.14 Description of the "qti-media-interaction" attribute for the "BlockGroup" class

Table 6.4.15 Description of the "qti-hottext-interaction" attribute for the "BlockGroup" class

Table 6.4.16 Description of the "qti-order-interaction" attribute for the "BlockGroup" class

Table 6.4.17 Description of the "qti-extended-text-interaction" attribute for the "BlockGroup" class

Table 6.4.18 Description of the "qti-upload-interaction" attribute for the "BlockGroup" class

Table 6.4.19 Description of the "qti-associate-interaction" attribute for the "BlockGroup" class

Table 6.4.20 Description of the "qti-feedback-block" attribute for the "BlockGroup" class

Table 6.4.21 Description of the "qti-template-block" attribute for the "BlockGroup" class

Table 6.4.22 Description of the "math" attribute for the "BlockGroup" class

Table 6.4.23 Description of the "include" attribute for the "BlockGroup" class

Table 6.4.24 Description of the "blockContentModel" attribute for the "BlockGroup" class

Table 6.5 BlockStaticGroup class definitions

Table 6.5.1 Description of the "qti-feedback-block" attribute for the "BlockStaticGroup" class

Table 6.5.2 Description of the "qti-template-block" attribute for the "BlockStaticGroup" class

Table 6.5.3 Description of the "math" attribute for the "BlockStaticGroup" class

Table 6.5.4 Description of the "include" attribute for the "BlockStaticGroup" class

Table 6.5.5 Description of the "blockContentModel" attribute for the "BlockStaticGroup" class

Table 6.6 CardSelection class definitions

Table 6.6.1 Description of the "qti-html-content" attribute for the "CardSelection" class

Table 6.6.2 Description of the "qti-file-href" attribute for the "CardSelection" class

Table 6.7 DLSelection class definitions

Table 6.7.1 Description of the "dd" attribute for the "DLSelection" class

Table 6.7.2 Description of the "dt" attribute for the "DLSelection" class

Table 6.8 DivSelection class definitions

Table 6.8.1 Description of the "qti-position-object-stage" attribute for the "DivSelection" class

Table 6.8.2 Description of the "flowGroup" attribute for the "DivSelection" class

Table 6.9 ExpressionGroup class definitions

Table 6.9.1 Description of the "qti-and" attribute for the "ExpressionGroup" class

Table 6.9.2 Description of the "qti-gt" attribute for the "ExpressionGroup" class

Table 6.9.3 Description of the "qti-not" attribute for the "ExpressionGroup" class

Table 6.9.4 Description of the "qti-lt" attribute for the "ExpressionGroup" class

Table 6.9.5 Description of the "qti-gte" attribute for the "ExpressionGroup" class

Table 6.9.6 Description of the "qti-lte" attribute for the "ExpressionGroup" class

Table 6.9.7 Description of the "qti-or" attribute for the "ExpressionGroup" class

Table 6.9.8 Description of the "qti-sum" attribute for the "ExpressionGroup" class

Table 6.9.9 Description of the "qti-duration-lt" attribute for the "ExpressionGroup" class

Table 6.9.10 Description of the "qti-duration-gte" attribute for the "ExpressionGroup" class

Table 6.9.11 Description of the "qti-subtract" attribute for the "ExpressionGroup" class

Table 6.9.12 Description of the "qti-divide" attribute for the "ExpressionGroup" class

Table 6.9.13 Description of the "qti-multiple" attribute for the "ExpressionGroup" class

Table 6.9.14 Description of the "qti-ordered" attribute for the "ExpressionGroup" class

Table 6.9.15 Description of the "qti-custom-operator" attribute for the "ExpressionGroup" class

Table 6.9.16 Description of the "qti-random" attribute for the "ExpressionGroup" class

Table 6.9.17 Description of the "qti-substring" attribute for the "ExpressionGroup" class

Table 6.9.18 Description of the "qti-equal-rounded" attribute for the "ExpressionGroup" class

Table 6.9.19 Description of the "qti-null" attribute for the "ExpressionGroup" class

Table 6.9.20 Description of the "qti-delete" attribute for the "ExpressionGroup" class

Table 6.9.21 Description of the "qti-match" attribute for the "ExpressionGroup" class

Table 6.9.22 Description of the "qti-index" attribute for the "ExpressionGroup" class

Table 6.9.23 Description of the "qti-power" attribute for the "ExpressionGroup" class

Table 6.9.24 Description of the "qti-equal" attribute for the "ExpressionGroup" class

Table 6.9.25 Description of the "qti-contains" attribute for the "ExpressionGroup" class

Table 6.9.26 Description of the "qti-container-size" attribute for the "ExpressionGroup" class

Table 6.9.27 Description of the "qti-correct" attribute for the "ExpressionGroup" class

Table 6.9.28 Description of the "qti-default" attribute for the "ExpressionGroup" class

Table 6.9.29 Description of the "qti-any-n" attribute for the "ExpressionGroup" class

Table 6.9.30 Description of the "qti-integer-divide" attribute for the "ExpressionGroup" class

Table 6.9.31 Description of the "qti-integer-modulus" attribute for the "ExpressionGroup" class

Table 6.9.32 Description of the "qti-is-null" attribute for the "ExpressionGroup" class

Table 6.9.33 Description of the "qti-member" attribute for the "ExpressionGroup" class

Table 6.9.34 Description of the "qti-product" attribute for the "ExpressionGroup" class

Table 6.9.35 Description of the "qti-round" attribute for the "ExpressionGroup" class

Table 6.9.36 Description of the "qti-truncate" attribute for the "ExpressionGroup" class

Table 6.9.37 Description of the "qti-field-value" attribute for the "ExpressionGroup" class

Table 6.9.38 Description of the "qti-random-integer" attribute for the "ExpressionGroup" class

Table 6.9.39 Description of the "qti-random-float" attribute for the "ExpressionGroup" class

Table 6.9.40 Description of the "qti-variable" attribute for the "ExpressionGroup" class

Table 6.9.41 Description of the "qti-test-variables" attribute for the "ExpressionGroup" class

Table 6.9.42 Description of the "qti-integer-to-float" attribute for the "ExpressionGroup" class

Table 6.9.43 Description of the "qti-inside" attribute for the "ExpressionGroup" class

Table 6.9.44 Description of the "qti-base-value" attribute for the "ExpressionGroup" class

Table 6.9.45 Description of the "qti-pattern-match" attribute for the "ExpressionGroup" class

Table 6.9.46 Description of the "qti-map-response-point" attribute for the "ExpressionGroup" class

Table 6.9.47 Description of the "qti-map-response" attribute for the "ExpressionGroup" class

Table 6.9.48 Description of the "qti-string-match" attribute for the "ExpressionGroup" class

Table 6.9.49 Description of the "qti-repeat" attribute for the "ExpressionGroup" class

Table 6.9.50 Description of the "qti-round-to" attribute for the "ExpressionGroup" class

Table 6.9.51 Description of the "qti-lcm" attribute for the "ExpressionGroup" class

Table 6.9.52 Description of the "qti-gcd" attribute for the "ExpressionGroup" class

Table 6.9.53 Description of the "qti-min" attribute for the "ExpressionGroup" class

Table 6.9.54 Description of the "qti-max" attribute for the "ExpressionGroup" class

Table 6.9.55 Description of the "qti-math-constant" attribute for the "ExpressionGroup" class

Table 6.9.56 Description of the "qti-stats-operator" attribute for the "ExpressionGroup" class

Table 6.9.57 Description of the "qti-math-operator" attribute for the "ExpressionGroup" class

Table 6.9.58 Description of the "qti-number-correct" attribute for the "ExpressionGroup" class

Table 6.9.59 Description of the "qti-number-incorrect" attribute for the "ExpressionGroup" class

Table 6.9.60 Description of the "qti-number-presented" attribute for the "ExpressionGroup" class

Table 6.9.61 Description of the "qti-number-responded" attribute for the "ExpressionGroup" class

Table 6.9.62 Description of the "qti-number-selected" attribute for the "ExpressionGroup" class

Table 6.9.63 Description of the "qti-outcome-minimum" attribute for the "ExpressionGroup" class

Table 6.9.64 Description of the "qti-outcome-maximum" attribute for the "ExpressionGroup" class

Table 6.10 FeedandTempBlockStatic class definitions

Table 6.10.1 Description of the "flowContentModel" attribute for the "FeedandTempBlockStatic" class

Table 6.10.2 Description of the "math" attribute for the "FeedandTempBlockStatic" class

Table 6.10.3 Description of the "include" attribute for the "FeedandTempBlockStatic" class

Table 6.10.4 Description of the "qti-template-block" attribute for the "FeedandTempBlockStatic" class

Table 6.10.5 Description of the "qti-template-inline" attribute for the "FeedandTempBlockStatic" class

Table 6.10.6 Description of the "qti-feedback-block" attribute for the "FeedandTempBlockStatic" class

Table 6.10.7 Description of the "qti-feedback-inline" attribute for the "FeedandTempBlockStatic" class

Table 6.10.8 Description of the "qti-printed-variable" attribute for the "FeedandTempBlockStatic" class

Table 6.11 FeedbackBlockStatic class definitions

Table 6.11.1 Description of the "blockGroup" attribute for the "FeedbackBlockStatic" class

Table 6.11.2 Description of the "inlineContentModel" attribute for the "FeedbackBlockStatic" class

Table 6.11.3 Description of the "qti-template-inline" attribute for the "FeedbackBlockStatic" class

Table 6.11.4 Description of the "qti-feedback-inline" attribute for the "FeedbackBlockStatic" class

Table 6.11.5 Description of the "qti-printed-variable" attribute for the "FeedbackBlockStatic" class

Table 6.12 FeedbackFlowStaticGroup class definitions

Table 6.12.1 Description of the "qti-printed-variable" attribute for the "FeedbackFlowStaticGroup" class

Table 6.12.2 Description of the "qti-hottext" attribute for the "FeedbackFlowStaticGroup" class

Table 6.12.3 Description of the "qti-template-inline" attribute for the "FeedbackFlowStaticGroup" class

Table 6.12.4 Description of the "qti-template-block" attribute for the "FeedbackFlowStaticGroup" class

Table 6.12.5 Description of the "math" attribute for the "FeedbackFlowStaticGroup" class

Table 6.12.6 Description of the "include" attribute for the "FeedbackFlowStaticGroup" class

Table 6.12.7 Description of the "flowContentModel" attribute for the "FeedbackFlowStaticGroup" class

Table 6.13 FeedbackInlineGroup class definitions

Table 6.13.1 Description of the "inlineContentModel" attribute for the "FeedbackInlineGroup" class

Table 6.13.2 Description of the "math" attribute for the "FeedbackInlineGroup" class

Table 6.13.3 Description of the "include" attribute for the "FeedbackInlineGroup" class

Table 6.13.4 Description of the "qti-template-inline" attribute for the "FeedbackInlineGroup" class

Table 6.13.5 Description of the "qti-printed-variable" attribute for the "FeedbackInlineGroup" class

Table 6.14 FlowContentModel class definitions

Table 6.14.1 Description of the "pre" attribute for the "FlowContentModel" class

Table 6.14.2 Description of the "h1" attribute for the "FlowContentModel" class

Table 6.14.3 Description of the "h2" attribute for the "FlowContentModel" class

Table 6.14.4 Description of the "h3" attribute for the "FlowContentModel" class

Table 6.14.5 Description of the "h4" attribute for the "FlowContentModel" class

Table 6.14.6 Description of the "h5" attribute for the "FlowContentModel" class

Table 6.14.7 Description of the "h6" attribute for the "FlowContentModel" class

Table 6.14.8 Description of the "p" attribute for the "FlowContentModel" class

Table 6.14.9 Description of the "address" attribute for the "FlowContentModel" class

Table 6.14.10 Description of the "dl" attribute for the "FlowContentModel" class

Table 6.14.11 Description of the "ol" attribute for the "FlowContentModel" class

Table 6.14.12 Description of the "ul" attribute for the "FlowContentModel" class

Table 6.14.13 Description of the "br" attribute for the "FlowContentModel" class

Table 6.14.14 Description of the "hr" attribute for the "FlowContentModel" class

Table 6.14.15 Description of the "img" attribute for the "FlowContentModel" class

Table 6.14.16 Description of the "object" attribute for the "FlowContentModel" class

Table 6.14.17 Description of the "blockquote" attribute for the "FlowContentModel" class

Table 6.14.18 Description of the "em" attribute for the "FlowContentModel" class

Table 6.14.19 Description of the "a" attribute for the "FlowContentModel" class

Table 6.14.20 Description of the "code" attribute for the "FlowContentModel" class

Table 6.14.21 Description of the "span" attribute for the "FlowContentModel" class

Table 6.14.22 Description of the "sub" attribute for the "FlowContentModel" class

Table 6.14.23 Description of the "acronym" attribute for the "FlowContentModel" class

Table 6.14.24 Description of the "big" attribute for the "FlowContentModel" class

Table 6.14.25 Description of the "tt" attribute for the "FlowContentModel" class

Table 6.14.26 Description of the "kbd" attribute for the "FlowContentModel" class

Table 6.14.27 Description of the "q" attribute for the "FlowContentModel" class

Table 6.14.28 Description of the "i" attribute for the "FlowContentModel" class

Table 6.14.29 Description of the "dfn" attribute for the "FlowContentModel" class

Table 6.14.30 Description of the "abbr" attribute for the "FlowContentModel" class

Table 6.14.31 Description of the "strong" attribute for the "FlowContentModel" class

Table 6.14.32 Description of the "sup" attribute for the "FlowContentModel" class

Table 6.14.33 Description of the "var" attribute for the "FlowContentModel" class

Table 6.14.34 Description of the "small" attribute for the "FlowContentModel" class

Table 6.14.35 Description of the "samp" attribute for the "FlowContentModel" class

Table 6.14.36 Description of the "b" attribute for the "FlowContentModel" class

Table 6.14.37 Description of the "cite" attribute for the "FlowContentModel" class

Table 6.14.38 Description of the "table" attribute for the "FlowContentModel" class

Table 6.14.39 Description of the "div" attribute for the "FlowContentModel" class

Table 6.14.40 Description of the "bdo" attribute for the "FlowContentModel" class

Table 6.14.41 Description of the "bdi" attribute for the "FlowContentModel" class

Table 6.14.42 Description of the "figure" attribute for the "FlowContentModel" class

Table 6.14.43 Description of the "audio" attribute for the "FlowContentModel" class

Table 6.14.44 Description of the "video" attribute for the "FlowContentModel" class

Table 6.14.45 Description of the "article" attribute for the "FlowContentModel" class

Table 6.14.46 Description of the "aside" attribute for the "FlowContentModel" class

Table 6.14.47 Description of the "footer" attribute for the "FlowContentModel" class

Table 6.14.48 Description of the "header" attribute for the "FlowContentModel" class

Table 6.14.49 Description of the "label" attribute for the "FlowContentModel" class

Table 6.14.50 Description of the "nav" attribute for the "FlowContentModel" class

Table 6.14.51 Description of the "section" attribute for the "FlowContentModel" class

Table 6.14.52 Description of the "ruby" attribute for the "FlowContentModel" class

Table 6.14.53 Description of the "ssmlGroup" attribute for the "FlowContentModel" class

Table 6.14.54 Description of the "picture" attribute for the "FlowContentModel" class

Table 6.14.55 Description of the "details" attribute for the "FlowContentModel" class

Table 6.15 FlowGroup class definitions

Table 6.15.1 Description of the "qti-printed-variable" attribute for the "FlowGroup" class

Table 6.15.2 Description of the "qti-feedback-block" attribute for the "FlowGroup" class

Table 6.15.3 Description of the "qti-hottext" attribute for the "FlowGroup" class

Table 6.15.4 Description of the "qti-feedback-inline" attribute for the "FlowGroup" class

Table 6.15.5 Description of the "qti-template-inline" attribute for the "FlowGroup" class

Table 6.15.6 Description of the "qti-template-block" attribute for the "FlowGroup" class

Table 6.15.7 Description of the "math" attribute for the "FlowGroup" class

Table 6.15.8 Description of the "include" attribute for the "FlowGroup" class

Table 6.15.9 Description of the "qti-text-entry-interaction" attribute for the "FlowGroup" class

Table 6.15.10 Description of the "qti-inline-choice-interaction" attribute for the "FlowGroup" class

Table 6.15.11 Description of the "qti-end-attempt-interaction" attribute for the "FlowGroup" class

Table 6.15.12 Description of the "qti-custom-interaction" attribute for the "FlowGroup" class

Table 6.15.13 Description of the "qti-portable-custom-interaction" attribute for the "FlowGroup" class

Table 6.15.14 Description of the "qti-drawing-interaction" attribute for the "FlowGroup" class

Table 6.15.15 Description of the "qti-gap-match-interaction" attribute for the "FlowGroup" class

Table 6.15.16 Description of the "qti-match-interaction" attribute for the "FlowGroup" class

Table 6.15.17 Description of the "qti-graphic-gap-match-interaction" attribute for the "FlowGroup" class

Table 6.15.18 Description of the "qti-hotspot-interaction" attribute for the "FlowGroup" class

Table 6.15.19 Description of the "qti-graphic-order-interaction" attribute for the "FlowGroup" class

Table 6.15.20 Description of the "qti-select-point-interaction" attribute for the "FlowGroup" class

Table 6.15.21 Description of the "qti-graphic-associate-interaction" attribute for the "FlowGroup" class

Table 6.15.22 Description of the "qti-slider-interaction" attribute for the "FlowGroup" class

Table 6.15.23 Description of the "qti-choice-interaction" attribute for the "FlowGroup" class

Table 6.15.24 Description of the "qti-media-interaction" attribute for the "FlowGroup" class

Table 6.15.25 Description of the "qti-hottext-interaction" attribute for the "FlowGroup" class

Table 6.15.26 Description of the "qti-order-interaction" attribute for the "FlowGroup" class

Table 6.15.27 Description of the "qti-extended-text-interaction" attribute for the "FlowGroup" class

Table 6.15.28 Description of the "qti-upload-interaction" attribute for the "FlowGroup" class

Table 6.15.29 Description of the "qti-associate-interaction" attribute for the "FlowGroup" class

Table 6.15.30 Description of the "flowContentModel" attribute for the "FlowGroup" class

Table 6.16 FlowStaticGroup class definitions

Table 6.16.1 Description of the "qti-printed-variable" attribute for the "FlowStaticGroup" class

Table 6.16.2 Description of the "qti-feedback-block" attribute for the "FlowStaticGroup" class

Table 6.16.3 Description of the "qti-feedback-inline" attribute for the "FlowStaticGroup" class

Table 6.16.4 Description of the "qti-template-inline" attribute for the "FlowStaticGroup" class

Table 6.16.5 Description of the "qti-template-block" attribute for the "FlowStaticGroup" class

Table 6.16.6 Description of the "math" attribute for the "FlowStaticGroup" class

Table 6.16.7 Description of the "include" attribute for the "FlowStaticGroup" class

Table 6.16.8 Description of the "flowContentModel" attribute for the "FlowStaticGroup" class

Table 6.17 GapChoice class definitions

Table 6.17.1 Description of the "qti-gap-text" attribute for the "GapChoice" class

Table 6.17.2 Description of the "qti-gap-img" attribute for the "GapChoice" class

Table 6.18 GraphicAssociateInteractionSelection class definitions

Table 6.18.1 Description of the "object" attribute for the "GraphicAssociateInteractionSelection" class

Table 6.18.2 Description of the "img" attribute for the "GraphicAssociateInteractionSelection" class

Table 6.18.3 Description of the "picture" attribute for the "GraphicAssociateInteractionSelection" class

Table 6.19 GraphicGapMatchInteractionSelection class definitions

Table 6.19.1 Description of the "object" attribute for the "GraphicGapMatchInteractionSelection" class

Table 6.19.2 Description of the "img" attribute for the "GraphicGapMatchInteractionSelection" class

Table 6.19.3 Description of the "picture" attribute for the "GraphicGapMatchInteractionSelection" class

Table 6.20 GraphicOrderInteractionSelection class definitions

Table 6.20.1 Description of the "object" attribute for the "GraphicOrderInteractionSelection" class

Table 6.20.2 Description of the "img" attribute for the "GraphicOrderInteractionSelection" class

Table 6.20.3 Description of the "picture" attribute for the "GraphicOrderInteractionSelection" class

Table 6.21 HTMLContentFlow class definitions

Table 6.21.1 Description of the "math" attribute for the "HTMLContentFlow" class

Table 6.21.2 Description of the "flowContent" attribute for the "HTMLContentFlow" class

Table 6.22 HotspotInteractionSelection class definitions

Table 6.22.1 Description of the "object" attribute for the "HotspotInteractionSelection" class

Table 6.22.2 Description of the "img" attribute for the "HotspotInteractionSelection" class

Table 6.22.3 Description of the "picture" attribute for the "HotspotInteractionSelection" class

Table 6.23 IncrementSelection class definitions

Table 6.23.1 Description of the "qti-increment-si" attribute for the "IncrementSelection" class

Table 6.23.2 Description of the "qti-increment-us" attribute for the "IncrementSelection" class

Table 6.24 InlineChoiceGroup class definitions

Table 6.24.1 Description of the "qti-printed-variable" attribute for the "InlineChoiceGroup" class

Table 6.24.2 Description of the "qti-feedback-inline" attribute for the "InlineChoiceGroup" class

Table 6.24.3 Description of the "qti-template-inline" attribute for the "InlineChoiceGroup" class

Table 6.24.4 Description of the "math" attribute for the "InlineChoiceGroup" class

Table 6.24.5 Description of the "include" attribute for the "InlineChoiceGroup" class

Table 6.24.6 Description of the "inlineContentModel" attribute for the "InlineChoiceGroup" class

Table 6.25 InlineContentModel class definitions

Table 6.25.1 Description of the "img" attribute for the "InlineContentModel" class

Table 6.25.2 Description of the "picture" attribute for the "InlineContentModel" class

Table 6.25.3 Description of the "br" attribute for the "InlineContentModel" class

Table 6.25.4 Description of the "object" attribute for the "InlineContentModel" class

Table 6.25.5 Description of the "em" attribute for the "InlineContentModel" class

Table 6.25.6 Description of the "a" attribute for the "InlineContentModel" class

Table 6.25.7 Description of the "code" attribute for the "InlineContentModel" class

Table 6.25.8 Description of the "span" attribute for the "InlineContentModel" class

Table 6.25.9 Description of the "sub" attribute for the "InlineContentModel" class

Table 6.25.10 Description of the "acronym" attribute for the "InlineContentModel" class

Table 6.25.11 Description of the "big" attribute for the "InlineContentModel" class

Table 6.25.12 Description of the "tt" attribute for the "InlineContentModel" class

Table 6.25.13 Description of the "kbd" attribute for the "InlineContentModel" class

Table 6.25.14 Description of the "q" attribute for the "InlineContentModel" class

Table 6.25.15 Description of the "i" attribute for the "InlineContentModel" class

Table 6.25.16 Description of the "dfn" attribute for the "InlineContentModel" class

Table 6.25.17 Description of the "abbr" attribute for the "InlineContentModel" class

Table 6.25.18 Description of the "strong" attribute for the "InlineContentModel" class

Table 6.25.19 Description of the "sup" attribute for the "InlineContentModel" class

Table 6.25.20 Description of the "var" attribute for the "InlineContentModel" class

Table 6.25.21 Description of the "small" attribute for the "InlineContentModel" class

Table 6.25.22 Description of the "samp" attribute for the "InlineContentModel" class

Table 6.25.23 Description of the "b" attribute for the "InlineContentModel" class

Table 6.25.24 Description of the "cite" attribute for the "InlineContentModel" class

Table 6.25.25 Description of the "bdo" attribute for the "InlineContentModel" class

Table 6.25.26 Description of the "bdi" attribute for the "InlineContentModel" class

Table 6.25.27 Description of the "label" attribute for the "InlineContentModel" class

Table 6.25.28 Description of the "ruby" attribute for the "InlineContentModel" class

Table 6.25.29 Description of the "ssml11Group" attribute for the "InlineContentModel" class

Table 6.26 InlineGroup class definitions

Table 6.26.1 Description of the "qti-text-entry-interaction" attribute for the "InlineGroup" class

Table 6.26.2 Description of the "qti-hottext" attribute for the "InlineGroup" class

Table 6.26.3 Description of the "qti-printed-variable" attribute for the "InlineGroup" class

Table 6.26.4 Description of the "qti-gap" attribute for the "InlineGroup" class

Table 6.26.5 Description of the "qti-feedback-inline" attribute for the "InlineGroup" class

Table 6.26.6 Description of the "qti-template-inline" attribute for the "InlineGroup" class

Table 6.26.7 Description of the "qti-inline-choice-interaction" attribute for the "InlineGroup" class

Table 6.26.8 Description of the "qti-end-attempt-interaction" attribute for the "InlineGroup" class

Table 6.26.9 Description of the "qti-custom-interaction" attribute for the "InlineGroup" class

Table 6.26.10 Description of the "math" attribute for the "InlineGroup" class

Table 6.26.11 Description of the "include" attribute for the "InlineGroup" class

Table 6.26.12 Description of the "inlineContentModel" attribute for the "InlineGroup" class

Table 6.27 InlineStaticGroup class definitions

Table 6.27.1 Description of the "qti-hottext" attribute for the "InlineStaticGroup" class

Table 6.27.2 Description of the "qti-printed-variable" attribute for the "InlineStaticGroup" class

Table 6.27.3 Description of the "qti-gap" attribute for the "InlineStaticGroup" class

Table 6.27.4 Description of the "qti-feedback-inline" attribute for the "InlineStaticGroup" class

Table 6.27.5 Description of the "qti-template-inline" attribute for the "InlineStaticGroup" class

Table 6.27.6 Description of the "math" attribute for the "InlineStaticGroup" class

Table 6.27.7 Description of the "include" attribute for the "InlineStaticGroup" class

Table 6.27.8 Description of the "inlineContentModel" attribute for the "InlineStaticGroup" class

Table 6.28 ItemBodySelect class definitions

Table 6.28.1 Description of the "qti-rubric-block" attribute for the "ItemBodySelect" class

Table 6.28.2 Description of the "blockGroup" attribute for the "ItemBodySelect" class

Table 6.29 LookupTable class definitions

Table 6.29.1 Description of the "qti-match-table" attribute for the "LookupTable" class

Table 6.29.2 Description of the "qti-interpolation-table" attribute for the "LookupTable" class

Table 6.30 NumericExpressionGroup class definitions

Table 6.30.1 Description of the "qti-sum" attribute for the "NumericExpressionGroup" class

Table 6.30.2 Description of the "qti-subtract" attribute for the "NumericExpressionGroup" class

Table 6.30.3 Description of the "qti-divide" attribute for the "NumericExpressionGroup" class

Table 6.30.4 Description of the "qti-multiple" attribute for the "NumericExpressionGroup" class

Table 6.30.5 Description of the "qti-ordered" attribute for the "NumericExpressionGroup" class

Table 6.30.6 Description of the "qti-custom-operator" attribute for the "NumericExpressionGroup" class

Table 6.30.7 Description of the "qti-random" attribute for the "NumericExpressionGroup" class

Table 6.30.8 Description of the "qti-null" attribute for the "NumericExpressionGroup" class

Table 6.30.9 Description of the "qti-delete" attribute for the "NumericExpressionGroup" class

Table 6.30.10 Description of the "qti-index" attribute for the "NumericExpressionGroup" class

Table 6.30.11 Description of the "qti-power" attribute for the "NumericExpressionGroup" class

Table 6.30.12 Description of the "qti-container-size" attribute for the "NumericExpressionGroup" class

Table 6.30.13 Description of the "qti-correct" attribute for the "NumericExpressionGroup" class

Table 6.30.14 Description of the "qti-default" attribute for the "NumericExpressionGroup" class

Table 6.30.15 Description of the "qti-integer-divide" attribute for the "NumericExpressionGroup" class

Table 6.30.16 Description of the "qti-integer-modulus" attribute for the "NumericExpressionGroup" class

Table 6.30.17 Description of the "qti-product" attribute for the "NumericExpressionGroup" class

Table 6.30.18 Description of the "qti-round" attribute for the "NumericExpressionGroup" class

Table 6.30.19 Description of the "qti-truncate" attribute for the "NumericExpressionGroup" class

Table 6.30.20 Description of the "qti-field-value" attribute for the "NumericExpressionGroup" class

Table 6.30.21 Description of the "qti-random-integer" attribute for the "NumericExpressionGroup" class

Table 6.30.22 Description of the "qti-variable" attribute for the "NumericExpressionGroup" class

Table 6.30.23 Description of the "qti-test-variables" attribute for the "NumericExpressionGroup" class

Table 6.30.24 Description of the "qti-integer-to-float" attribute for the "NumericExpressionGroup" class

Table 6.30.25 Description of the "qti-base-value" attribute for the "NumericExpressionGroup" class

Table 6.30.26 Description of the "qti-map-response-point" attribute for the "NumericExpressionGroup" class

Table 6.30.27 Description of the "qti-map-response" attribute for the "NumericExpressionGroup" class

Table 6.30.28 Description of the "qti-repeat" attribute for the "NumericExpressionGroup" class

Table 6.30.29 Description of the "qti-round-to" attribute for the "NumericExpressionGroup" class

Table 6.30.30 Description of the "qti-lcm" attribute for the "NumericExpressionGroup" class

Table 6.30.31 Description of the "qti-gcd" attribute for the "NumericExpressionGroup" class

Table 6.30.32 Description of the "qti-min" attribute for the "NumericExpressionGroup" class

Table 6.30.33 Description of the "qti-max" attribute for the "NumericExpressionGroup" class

Table 6.30.34 Description of the "qti-math-constant" attribute for the "NumericExpressionGroup" class

Table 6.30.35 Description of the "qti-stats-operator" attribute for the "NumericExpressionGroup" class

Table 6.30.36 Description of the "qti-math-operator" attribute for the "NumericExpressionGroup" class

Table 6.30.37 Description of the "qti-random-float" attribute for the "NumericExpressionGroup" class

Table 6.30.38 Description of the "qti-number-correct" attribute for the "NumericExpressionGroup" class

Table 6.30.39 Description of the "qti-number-incorrect" attribute for the "NumericExpressionGroup" class

Table 6.30.40 Description of the "qti-number-presented" attribute for the "NumericExpressionGroup" class

Table 6.30.41 Description of the "qti-number-responded" attribute for the "NumericExpressionGroup" class

Table 6.30.42 Description of the "qti-number-selected" attribute for the "NumericExpressionGroup" class

Table 6.30.43 Description of the "qti-outcome-minimum" attribute for the "NumericExpressionGroup" class

Table 6.30.44 Description of the "qti-outcome-maximum" attribute for the "NumericExpressionGroup" class

Table 6.31 ObjectFlowGroup class definitions

Table 6.31.1 Description of the "math" attribute for the "ObjectFlowGroup" class

Table 6.31.2 Description of the "include" attribute for the "ObjectFlowGroup" class

Table 6.31.3 Description of the "param" attribute for the "ObjectFlowGroup" class

Table 6.31.4 Description of the "flowContentModel" attribute for the "ObjectFlowGroup" class

Table 6.32 OutcomeRule class definitions

Table 6.32.1 Description of the "qti-lookup-outcome-value" attribute for the "OutcomeRule" class

Table 6.32.2 Description of the "qti-outcome-processing-fragment" attribute for the "OutcomeRule" class

Table 6.32.3 Description of the "qti-set-outcome-value" attribute for the "OutcomeRule" class

Table 6.32.4 Description of the "include" attribute for the "OutcomeRule" class

Table 6.32.5 Description of the "qti-exit-test" attribute for the "OutcomeRule" class

Table 6.32.6 Description of the "qti-outcome-condition" attribute for the "OutcomeRule" class

Table 6.33 PhraseRBSelection class definitions

Table 6.33.1 Description of the "phrasingContentModel" attribute for the "PhraseRBSelection" class

Table 6.33.2 Description of the "rb" attribute for the "PhraseRBSelection" class

Table 6.34 PhrasingContentModelHTML5 class definitions

Table 6.34.1 Description of the "a" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.2 Description of the "abbr" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.3 Description of the "b" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.4 Description of the "bdo" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.5 Description of the "br" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.6 Description of the "cite" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.7 Description of the "code" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.8 Description of the "dfn" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.9 Description of the "em" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.10 Description of the "i" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.11 Description of the "img" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.12 Description of the "picture" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.13 Description of the "kbd" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.14 Description of the "object" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.15 Description of the "q" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.16 Description of the "samp" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.17 Description of the "small" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.18 Description of the "span" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.19 Description of the "strong" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.20 Description of the "sub" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.21 Description of the "sup" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.22 Description of the "var" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.23 Description of the "audio" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.24 Description of the "bdi" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.25 Description of the "label" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.26 Description of the "ruby" attribute for the "PhrasingContentModelHTML5" class

Table 6.34.27 Description of the "video" attribute for the "PhrasingContentModelHTML5" class

Table 6.35 PositionObjectStageSelection class definitions

Table 6.35.1 Description of the "object" attribute for the "PositionObjectStageSelection" class

Table 6.35.2 Description of the "img" attribute for the "PositionObjectStageSelection" class

Table 6.35.3 Description of the "picture" attribute for the "PositionObjectStageSelection" class

Table 6.36 PromptStaticGroup class definitions

Table 6.36.1 Description of the "math" attribute for the "PromptStaticGroup" class

Table 6.36.2 Description of the "include" attribute for the "PromptStaticGroup" class

Table 6.36.3 Description of the "flowContentModel" attribute for the "PromptStaticGroup" class

Table 6.37 RPRTSelection class definitions

Table 6.37.1 Description of the "rp" attribute for the "RPRTSelection" class

Table 6.37.2 Description of the "rtrtcSelection" attribute for the "RPRTSelection" class

Table 6.38 RTRTCSelection class definitions

Table 6.38.1 Description of the "rt" attribute for the "RTRTCSelection" class

Table 6.38.2 Description of the "rtc" attribute for the "RTRTCSelection" class

Table 6.39 ResponseRuleGroup class definitions

Table 6.39.1 Description of the "include" attribute for the "ResponseRuleGroup" class

Table 6.39.2 Description of the "qti-response-condition" attribute for the "ResponseRuleGroup" class

Table 6.39.3 Description of the "qti-response-processing-fragment" attribute for the "ResponseRuleGroup" class

Table 6.39.4 Description of the "qti-set-outcome-value" attribute for the "ResponseRuleGroup" class

Table 6.39.5 Description of the "qti-exit-response" attribute for the "ResponseRuleGroup" class

Table 6.39.6 Description of the "qti-lookup-outcome-value" attribute for the "ResponseRuleGroup" class

Table 6.40 RubricBlockContentModel class definitions

Table 6.40.1 Description of the "flowContentModel" attribute for the "RubricBlockContentModel" class

Table 6.40.2 Description of the "math" attribute for the "RubricBlockContentModel" class

Table 6.40.3 Description of the "include" attribute for the "RubricBlockContentModel" class

Table 6.40.4 Description of the "qti-template-block" attribute for the "RubricBlockContentModel" class

Table 6.40.5 Description of the "qti-template-inline" attribute for the "RubricBlockContentModel" class

Table 6.40.6 Description of the "qti-printed-variable" attribute for the "RubricBlockContentModel" class

Table 6.41 RubricTemplateBlockContentModel class definitions

Table 6.41.1 Description of the "flowContentModel" attribute for the "RubricTemplateBlockContentModel" class

Table 6.41.2 Description of the "math" attribute for the "RubricTemplateBlockContentModel" class

Table 6.41.3 Description of the "include" attribute for the "RubricTemplateBlockContentModel" class

Table 6.41.4 Description of the "qti-printed-variable" attribute for the "RubricTemplateBlockContentModel" class

Table 6.42 RubricTemplateInlineStaticGroup class definitions

Table 6.42.1 Description of the "inlineContentModel" attribute for the "RubricTemplateInlineStaticGroup" class

Table 6.42.2 Description of the "math" attribute for the "RubricTemplateInlineStaticGroup" class

Table 6.42.3 Description of the "include" attribute for the "RubricTemplateInlineStaticGroup" class

Table 6.42.4 Description of the "qti-printed-variable" attribute for the "RubricTemplateInlineStaticGroup" class

Table 6.43 RubySelection class definitions

Table 6.43.1 Description of the "phraseSelection" attribute for the "RubySelection" class

Table 6.43.2 Description of the "rprtSelection" attribute for the "RubySelection" class

Table 6.44 RuleSystemSelection class definitions

Table 6.44.1 Description of the "qti-rule-system-si" attribute for the "RuleSystemSelection" class

Table 6.44.2 Description of the "qti-rule-system-us" attribute for the "RuleSystemSelection" class

Table 6.45 SSMLGroup class definitions

Table 6.45.1 Description of the "p" attribute for the "SSMLGroup" class

Table 6.45.2 Description of the "s" attribute for the "SSMLGroup" class

Table 6.45.3 Description of the "say-as" attribute for the "SSMLGroup" class

Table 6.45.4 Description of the "phoneme" attribute for the "SSMLGroup" class

Table 6.45.5 Description of the "sub" attribute for the "SSMLGroup" class

Table 6.45.6 Description of the "voice" attribute for the "SSMLGroup" class

Table 6.45.7 Description of the "emphasis" attribute for the "SSMLGroup" class

Table 6.45.8 Description of the "break" attribute for the "SSMLGroup" class

Table 6.45.9 Description of the "prosody" attribute for the "SSMLGroup" class

Table 6.45.10 Description of the "mark" attribute for the "SSMLGroup" class

Table 6.45.11 Description of the "audio" attribute for the "SSMLGroup" class

Table 6.45.12 Description of the "speak" attribute for the "SSMLGroup" class

Table 6.46 SectionPart class definitions

Table 6.46.1 Description of the "include" attribute for the "SectionPart" class

Table 6.46.2 Description of the "qti-assessment-item-ref" attribute for the "SectionPart" class

Table 6.46.3 Description of the "qti-assessment-section" attribute for the "SectionPart" class

Table 6.46.4 Description of the "qti-assessment-section-ref" attribute for the "SectionPart" class

Table 6.47 SelectOrderSelection class definitions

Table 6.47.1 Description of the "qti-selection" attribute for the "SelectOrderSelection" class

Table 6.47.2 Description of the "qti-ordering" attribute for the "SelectOrderSelection" class

Table 6.48 SelectStimulusBody class definitions

Table 6.48.1 Description of the "math" attribute for the "SelectStimulusBody" class

Table 6.48.2 Description of the "blockContent" attribute for the "SelectStimulusBody" class

Table 6.49 TableCellGroup class definitions

Table 6.49.1 Description of the "td" attribute for the "TableCellGroup" class

Table 6.49.2 Description of the "th" attribute for the "TableCellGroup" class

Table 6.50 TemplateRuleGroup class definitions

Table 6.50.1 Description of the "qti-set-template-value" attribute for the "TemplateRuleGroup" class

Table 6.50.2 Description of the "qti-exit-template" attribute for the "TemplateRuleGroup" class

Table 6.50.3 Description of the "qti-template-condition" attribute for the "TemplateRuleGroup" class

Table 6.50.4 Description of the "qti-set-default-value" attribute for the "TemplateRuleGroup" class

Table 6.50.5 Description of the "qti-set-correct-response" attribute for the "TemplateRuleGroup" class

Table 6.50.6 Description of the "qti-template-constraint" attribute for the "TemplateRuleGroup" class

Table 6.51 TestFeedbackFlowStaticGroup class definitions

Table 6.51.1 Description of the "flowContentModel" attribute for the "TestFeedbackFlowStaticGroup" class

Table 6.51.2 Description of the "include" attribute for the "TestFeedbackFlowStaticGroup" class

Table 6.51.3 Description of the "math" attribute for the "TestFeedbackFlowStaticGroup" class

Table 6.52 TestRubricBlockContentModel class definitions

Table 6.52.1 Description of the "flowContentModel" attribute for the "TestRubricBlockContentModel" class

Table 6.52.2 Description of the "include" attribute for the "TestRubricBlockContentModel" class

Table 6.52.3 Description of the "math" attribute for the "TestRubricBlockContentModel" class

Table 7.1 ARIABaseEmpty class definitions

Table 7.1.1 Description of the "role" characteristic for the "ARIABaseEmpty" class

Table 7.1.2 Description of the "aria-controls" characteristic for the "ARIABaseEmpty" class

Table 7.1.3 Description of the "aria-describedby" characteristic for the "ARIABaseEmpty" class

Table 7.1.4 Description of the "aria-flowto" characteristic for the "ARIABaseEmpty" class

Table 7.1.5 Description of the "aria-label" characteristic for the "ARIABaseEmpty" class

Table 7.1.6 Description of the "aria-labelledby" characteristic for the "ARIABaseEmpty" class

Table 7.1.7 Description of the "aria-level" characteristic for the "ARIABaseEmpty" class

Table 7.1.8 Description of the "aria-live" characteristic for the "ARIABaseEmpty" class

Table 7.1.9 Description of the "aria-orientation" characteristic for the "ARIABaseEmpty" class

Table 7.1.10 Description of the "aria-owns" characteristic for the "ARIABaseEmpty" class

Table 7.1.11 Description of the "aria-hidden" characteristic for the "ARIABaseEmpty" class

Table 7.1.12 Description of the "aria-activedescendant" characteristic for the "ARIABaseEmpty" class

Table 7.1.13 Description of the "aria-atomic" characteristic for the "ARIABaseEmpty" class

Table 7.1.14 Description of the "aria-autocomplete" characteristic for the "ARIABaseEmpty" class

Table 7.1.15 Description of the "aria-busy" characteristic for the "ARIABaseEmpty" class

Table 7.1.16 Description of the "aria-checked" characteristic for the "ARIABaseEmpty" class

Table 7.1.17 Description of the "aria-disabled" characteristic for the "ARIABaseEmpty" class

Table 7.1.18 Description of the "aria-expanded" characteristic for the "ARIABaseEmpty" class

Table 7.1.19 Description of the "aria-haspopup" characteristic for the "ARIABaseEmpty" class

Table 7.1.20 Description of the "aria-invalid" characteristic for the "ARIABaseEmpty" class

Table 7.1.21 Description of the "aria-multiline" characteristic for the "ARIABaseEmpty" class

Table 7.1.22 Description of the "aria-multiselectable" characteristic for the "ARIABaseEmpty" class

Table 7.1.23 Description of the "aria-posinset" characteristic for the "ARIABaseEmpty" class

Table 7.1.24 Description of the "aria-pressed" characteristic for the "ARIABaseEmpty" class

Table 7.1.25 Description of the "aria-readonly" characteristic for the "ARIABaseEmpty" class

Table 7.1.26 Description of the "aria-relevant" characteristic for the "ARIABaseEmpty" class

Table 7.1.27 Description of the "aria-required" characteristic for the "ARIABaseEmpty" class

Table 7.1.28 Description of the "aria-selected" characteristic for the "ARIABaseEmpty" class

Table 7.1.29 Description of the "aria-setsize" characteristic for the "ARIABaseEmpty" class

Table 7.1.30 Description of the "aria-sort" characteristic for the "ARIABaseEmpty" class

Table 7.1.31 Description of the "aria-valuemax" characteristic for the "ARIABaseEmpty" class

Table 7.1.32 Description of the "aria-valuemin" characteristic for the "ARIABaseEmpty" class

Table 7.1.33 Description of the "aria-valuenow" characteristic for the "ARIABaseEmpty" class

Table 7.1.34 Description of the "aria-valuetext" characteristic for the "ARIABaseEmpty" class

Table 7.1.35 Description of the "aria-modal" characteristic for the "ARIABaseEmpty" class

Table 7.1.36 Description of the "aria-current" characteristic for the "ARIABaseEmpty" class

Table 7.1.37 Description of the "aria-placeholder" characteristic for the "ARIABaseEmpty" class

Table 7.1.38 Description of the "aria-colcount" characteristic for the "ARIABaseEmpty" class

Table 7.1.39 Description of the "aria-rowcount" characteristic for the "ARIABaseEmpty" class

Table 7.1.40 Description of the "aria-colindex" characteristic for the "ARIABaseEmpty" class

Table 7.1.41 Description of the "aria-rowindex" characteristic for the "ARIABaseEmpty" class

Table 7.1.42 Description of the "aria-colspan" characteristic for the "ARIABaseEmpty" class

Table 7.1.43 Description of the "aria-rowspan" characteristic for the "ARIABaseEmpty" class

Table 7.1.44 Description of the "aria-keyshorts" characteristic for the "ARIABaseEmpty" class

Table 7.1.45 Description of the "aria-roledescription" characteristic for the "ARIABaseEmpty" class

Table 7.1.46 Description of the "aria-errormessage" characteristic for the "ARIABaseEmpty" class

Table 7.1.47 Description of the "aria-details" characteristic for the "ARIABaseEmpty" class

Table 7.2 ARIALevelInteger class definitions

Table 7.2.1 Description of the "minInclusive" attribute for the "ARIALevelInteger" class

Table 7.3 AdaptiveHref class definitions

Table 7.3.1 Description of the "identifier" characteristic for the "AdaptiveHref" class

Table 7.3.2 Description of the "href" characteristic for the "AdaptiveHref" class

Table 7.4 AreaMapEntry class definitions

Table 7.4.1 Description of the "shape" characteristic for the "AreaMapEntry" class

Table 7.4.2 Description of the "coords" characteristic for the "AreaMapEntry" class

Table 7.4.3 Description of the "mapped-value" characteristic for the "AreaMapEntry" class

Table 7.5 AssessmentSectionRef class definitions

Table 7.5.1 Description of the "identifier" characteristic for the "AssessmentSectionRef" class

Table 7.5.2 Description of the "class" characteristic for the "AssessmentSectionRef" class

Table 7.5.3 Description of the "href" characteristic for the "AssessmentSectionRef" class

Table 7.5.4 Description of the "dataExtension" characteristic for the "AssessmentSectionRef" class

Table 7.6 AssessmentStimulusRef class definitions

Table 7.6.1 Description of the "identifier" characteristic for the "AssessmentStimulusRef" class

Table 7.6.2 Description of the "href" characteristic for the "AssessmentStimulusRef" class

Table 7.6.3 Description of the "title" characteristic for the "AssessmentStimulusRef" class

Table 7.6.4 Description of the "dataExtension" characteristic for the "AssessmentStimulusRef" class

Table 7.7 BaseValue class definitions

Table 7.7.1 Description of the "base-type" characteristic for the "BaseValue" class

Table 7.8 ContextUniqueIDRef class definitions

Table 7.8.1 Description of the "identifier" characteristic for the "ContextUniqueIDRef" class

Table 7.9 Coords class definitions

Table 7.9.1 Description of the "pattern" attribute for the "Coords" class

Table 7.10 Correct class definitions

Table 7.10.1 Description of the "identifier" characteristic for the "Correct" class

Table 7.11 DataHTML5Extension class definitions

Table 7.11.1 Description of the "pattern" attribute for the "DataHTML5Extension" class

Table 7.12 Default class definitions

Table 7.12.1 Description of the "identifier" characteristic for the "Default" class

Table 7.13 EncVariableString class definitions

Table 7.13.1 Description of the "pattern" attribute for the "EncVariableString" class

Table 7.14 FileHref class definitions

Table 7.15 FileHrefCard class definitions

Table 7.15.1 Description of the "mime-type" characteristic for the "FileHrefCard" class

Table 7.16 Identifier class definitions

Table 7.17 InteractionModule class definitions

Table 7.17.1 Description of the "id" characteristic for the "InteractionModule" class

Table 7.17.2 Description of the "primary-path" characteristic for the "InteractionModule" class

Table 7.17.3 Description of the "fallback-path" characteristic for the "InteractionModule" class

Table 7.18 InterpolationTableEntry class definitions

Table 7.18.1 Description of the "source-value" characteristic for the "InterpolationTableEntry" class

Table 7.18.2 Description of the "include-boundary" characteristic for the "InterpolationTableEntry" class

Table 7.18.3 Description of the "target-value" characteristic for the "InterpolationTableEntry" class

Table 7.19 ItemSessionControl class definitions

Table 7.19.1 Description of the "max-attempts" characteristic for the "ItemSessionControl" class

Table 7.19.2 Description of the "show-feedback" characteristic for the "ItemSessionControl" class

Table 7.19.3 Description of the "allow-review" characteristic for the "ItemSessionControl" class

Table 7.19.4 Description of the "show-solution" characteristic for the "ItemSessionControl" class

Table 7.19.5 Description of the "allow-comment" characteristic for the "ItemSessionControl" class

Table 7.19.6 Description of the "allow-skipping" characteristic for the "ItemSessionControl" class

Table 7.19.7 Description of the "validate-responses" characteristic for the "ItemSessionControl" class

Table 7.20 Length class definitions

Table 7.20.1 Description of the "pattern" attribute for the "Length" class

Table 7.21 MapEntry class definitions

Table 7.21.1 Description of the "map-key" characteristic for the "MapEntry" class

Table 7.21.2 Description of the "mapped-value" characteristic for the "MapEntry" class

Table 7.21.3 Description of the "case-sensitive" characteristic for the "MapEntry" class

Table 7.22 MapResponse class definitions

Table 7.22.1 Description of the "identifier" characteristic for the "MapResponse" class

Table 7.23 MatchTableEntry class definitions

Table 7.23.1 Description of the "source-value" characteristic for the "MatchTableEntry" class

Table 7.23.2 Description of the "target-value" characteristic for the "MatchTableEntry" class

Table 7.24 MathConstant class definitions

Table 7.24.1 Description of the "name" characteristic for the "MathConstant" class

Table 7.25 MimeType class definitions

Table 7.25.1 Description of the "pattern" attribute for the "MimeType" class

Table 7.26 NonNegativeDouble class definitions

Table 7.26.1 Description of the "minInclusive" attribute for the "NonNegativeDouble" class

Table 7.27 Number class definitions

Table 7.27.1 Description of the "section-identifier" characteristic for the "Number" class

Table 7.27.2 Description of the "include-category" characteristic for the "Number" class

Table 7.27.3 Description of the "exclude-category" characteristic for the "Number" class

Table 7.28 OutcomeMinMax class definitions

Table 7.28.1 Description of the "section-identifier" characteristic for the "OutcomeMinMax" class

Table 7.28.2 Description of the "include-category" characteristic for the "OutcomeMinMax" class

Table 7.28.3 Description of the "exclude-category" characteristic for the "OutcomeMinMax" class

Table 7.28.4 Description of the "outcome-identifier" characteristic for the "OutcomeMinMax" class

Table 7.28.5 Description of the "weight-identifier" characteristic for the "OutcomeMinMax" class

Table 7.29 Param class definitions

Table 7.29.1 Description of the "name" characteristic for the "Param" class

Table 7.29.2 Description of the "value" characteristic for the "Param" class

Table 7.29.3 Description of the "valuetype" characteristic for the "Param" class

Table 7.29.4 Description of the "type" characteristic for the "Param" class

Table 7.30 PrintedVariable class definitions

Table 7.30.1 Description of the "id" characteristic for the "PrintedVariable" class

Table 7.30.2 Description of the "class" characteristic for the "PrintedVariable" class

Table 7.30.3 Description of the "language" characteristic for the "PrintedVariable" class

Table 7.30.4 Description of the "label" characteristic for the "PrintedVariable" class

Table 7.30.5 Description of the "baseuri" characteristic for the "PrintedVariable" class

Table 7.30.6 Description of the "identifier" characteristic for the "PrintedVariable" class

Table 7.30.7 Description of the "format" characteristic for the "PrintedVariable" class

Table 7.30.8 Description of the "base" characteristic for the "PrintedVariable" class

Table 7.30.9 Description of the "index" characteristic for the "PrintedVariable" class

Table 7.30.10 Description of the "power-form" characteristic for the "PrintedVariable" class

Table 7.30.11 Description of the "field" characteristic for the "PrintedVariable" class

Table 7.30.12 Description of the "delimiter" characteristic for the "PrintedVariable" class

Table 7.30.13 Description of the "mapping-indicator" characteristic for the "PrintedVariable" class

Table 7.31 RadialSIValue class definitions

Table 7.31.1 Description of the "unit" characteristic for the "RadialSIValue" class

Table 7.32 RadialUSValue class definitions

Table 7.32.1 Description of the "unit" characteristic for the "RadialUSValue" class

Table 7.33 RandomFloat class definitions

Table 7.33.1 Description of the "min" characteristic for the "RandomFloat" class

Table 7.33.2 Description of the "max" characteristic for the "RandomFloat" class

Table 7.34 RandomInteger class definitions

Table 7.34.1 Description of the "min" characteristic for the "RandomInteger" class

Table 7.34.2 Description of the "max" characteristic for the "RandomInteger" class

Table 7.34.3 Description of the "step" characteristic for the "RandomInteger" class

Table 7.35 SILinearValue class definitions

Table 7.35.1 Description of the "unit" characteristic for the "SILinearValue" class

Table 7.36 StyleSheet class definitions

Table 7.36.1 Description of the "href" characteristic for the "StyleSheet" class

Table 7.36.2 Description of the "type" characteristic for the "StyleSheet" class

Table 7.36.3 Description of the "media" characteristic for the "StyleSheet" class

Table 7.36.4 Description of the "title" characteristic for the "StyleSheet" class

Table 7.37 SupportExtString class definitions

Table 7.37.1 Description of the "pattern" attribute for the "SupportExtString" class

Table 7.38 TemplateUniqueIDRef class definitions

Table 7.38.1 Description of the "template-identifier" characteristic for the "TemplateUniqueIDRef" class

Table 7.39 TestVariables class definitions

Table 7.39.1 Description of the "section-identifier" characteristic for the "TestVariables" class

Table 7.39.2 Description of the "include-category" characteristic for the "TestVariables" class

Table 7.39.3 Description of the "exclude-category" characteristic for the "TestVariables" class

Table 7.39.4 Description of the "variable-identifier" characteristic for the "TestVariables" class

Table 7.39.5 Description of the "weight-identifier" characteristic for the "TestVariables" class

Table 7.39.6 Description of the "base-type" characteristic for the "TestVariables" class

Table 7.40 TimeLimits class definitions

Table 7.40.1 Description of the "min-time" characteristic for the "TimeLimits" class

Table 7.40.2 Description of the "max-time" characteristic for the "TimeLimits" class

Table 7.40.3 Description of the "allow-late-submission" characteristic for the "TimeLimits" class

Table 7.41 URL class definitions

Table 7.42 USLinearValue class definitions

Table 7.42.1 Description of the "unit" characteristic for the "USLinearValue" class

Table 7.43 UniqueIdentifier class definitions

Table 7.44 UniqueIdentifierRef class definitions

Table 7.45 UseExtensionString class definitions

Table 7.45.1 Description of the "pattern" attribute for the "UseExtensionString" class

Table 7.46 Value class definitions

Table 7.46.1 Description of the "field-identifier" characteristic for the "Value" class

Table 7.46.2 Description of the "base-type" characteristic for the "Value" class

Table 7.47 Variable class definitions

Table 7.47.1 Description of the "identifier" characteristic for the "Variable" class

Table 7.47.2 Description of the "weight-identifier" characteristic for the "Variable" class

Table 7.48 VariableMapping class definitions

Table 7.48.1 Description of the "source-identifier" characteristic for the "VariableMapping" class

Table 7.48.2 Description of the "target-identifier" characteristic for the "VariableMapping" class

Table 7.49 VariableString class definitions

Table 7.49.1 Description of the "pattern" attribute for the "VariableString" class

Table 7.50 Weight class definitions

Table 7.50.1 Description of the "identifier" characteristic for the "Weight" class

Table 7.50.2 Description of the "value" characteristic for the "Weight" class

Table 8.1 ARIAAutoCompleteEnum class definitions

Table 8.2 ARIACheckedEnum class definitions

Table 8.3 ARIACurrentEnum class definitions

Table 8.4 ARIAExpandedEnum class definitions

Table 8.5 ARIAInvalidEnum class definitions

Table 8.6 ARIALiveValueEnum class definitions

Table 8.7 ARIAOrientationValueEnum class definitions

Table 8.8 ARIAPressedEnum class definitions

Table 8.9 ARIARoleValue class definitions

Table 8.10 ARIASelectedEnum class definitions

Table 8.11 ARIASortEnum class definitions

Table 8.12 AlignEnum class definitions

Table 8.13 BaseTypeEnum class definitions

Table 8.14 CORSSettingsEnum class definitions

Table 8.15 CalculatorTypeEnum class definitions

Table 8.16 CardinalityEnum class definitions

Table 8.17 DIR class definitions

Table 8.18 ExternalScoredEnum class definitions

Table 8.19 KindValueEnum class definitions

Table 8.20 MathConstantsEnum class definitions

Table 8.21 MathOperatorNameEnum class definitions

Table 8.22 NavigationModeEnum class definitions

Table 8.23 OrientationEnum class definitions

Table 8.24 ParamTypeEnum class definitions

Table 8.25 PreLoadValueEnum class definitions

Table 8.26 RoundingModeEnum class definitions

Table 8.27 SIRadialUnitTypeEnum class definitions

Table 8.28 SIUnitTypeEnum class definitions

Table 8.29 ShapeEnum class definitions

Table 8.30 ShowHideEnum class definitions

Table 8.31 StatsOperatorNameEnum class definitions

Table 8.32 SubmissionModeEnum class definitions

Table 8.33 SupportEnum class definitions

Table 8.34 SuppressTTSEnum class definitions

Table 8.35 TableCellScopeEnum class definitions

Table 8.36 TestFeedbackAccessEnum class definitions

Table 8.37 TextFormatEnum class definitions

Table 8.38 ToleranceModeEnum class definitions

Table 8.39 USRadialUnitTypeEnum class definitions

Table 8.40 USUnitTypeEnum class definitions

Table 8.41 UseEnum class definitions

Table 8.42 ValignEnum class definitions

Table 9.1.1 IdentifierList class description

Table 9.1.2 IntegerList class description

Table 9.1.3 MimeTypeList class description

Table 9.1.4 StringList class description

Table 9.1.5 ToleranceList class description

Table 9.2.1 ARIARelevantList class description

Table 9.2.2 ViewEnum class description

Table 9.3.1 FloatOrVariableRef class description

Table 9.3.2 IntOrIdentifier class description

Table 9.3.3 IntegerOrVariableRef class description

Table 9.3.4 StringOrVariableRef class description

Table 9.3.5 SupportEnumExt class description

Table 9.3.6 UseEnumExt class description

Table 9.4.1 Include class description

Table 9.4.2 MathML3 class description

Table 9.4.3 SSMLv1p1 class description

Table A1.1 The key to the descriptions of data model diagrams

Table A1.2 The key to the descriptions of the data class tables

Table A1.3 The key to the descriptions of the data attribute/characteristic tables

Table A1.4 The key to the descriptions of the enumerated vocabulary tables

Table A1.5 The key to the descriptions of the external vocabulary tables

Table A1.6 The key to the descriptions of the import class tables

Table A1.7 The key to the descriptions of the link data tables

Table A1.8 The key to the descriptions of the common data model persistent identifier tables

1. Introduction

1.1. Scope and Context

The IMS Question and Test Interoperability (QTI): Assessment, Section and Item (ASI) Information Model definition is a part of the broader QTI specification. This document should be used in conjunction with the following documents:

This QTI ASI 3.0 Information Model is bound to an XML Schema Definition (XSD). This document and the accompanying XSD is generated using the IMS Global Binding Auto-generation Tool-kit (I-BAT) [I-BAT, 06].

1.2. Changes in QTI 3.0

This QTI ASI 3.0 specification supersedes the QTI ASI 2.2 version. The differences between these two versions are:

1.3. Conventions

All sections marked as non-normative, all authoring guidelines, diagrams (with the exception of the UML diagrams), examples, and notes in this specification are non-normative. Everything else in this specification is normative.

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC 2119]. This means that from the perspective of conformance:

The Conformance and Certification Guide for this specification may introduce greater normative constraints than those defined here for specific service or implementation categories.

The SHOULD/SHOULD NOT/RECOMMENDED statements MUST NOT be used in any document, or section of a document, that is responsible for defining the information model and/or the associated bindings and/or conformance and certification.

1.4. Structure of this Document

1.5. Nomenclature and Definitions

2. Key Data Model Features

2.1. The Structure of the Data Model

The QTI v3.0 specification has four components that provide the total data interoperability capability:

2.1.1. Assessments, Sections and Items

This is the core functionality of the QTI specification and is the component that is addressed specifically by this document. This specification defines the exchange of a single Assessment (also known as a Test and Quiz), Sections and/or Items. Structurally an Assessment consists of one or more TestParts; each TestPart consists of one or more Sections; each Section consists of one or more Sections (hence a Section is recursive) and/or Items. This specification also permits the seperate exchange of an Outcome Declaration, a Response Processing Template and content Stimulus. The data model root classes are:

This data model is mapped to an XSD binding [QTI-BIND-30]. The data exchange is achieved as a zip package as defined in [CP-12].

2.1.2. Metadata

This is the QTI-specific metadata. In QTIv3.0 the QTI-specific metadata [QTI-MD-BIND-30] is aligned with the IEEE Learning Object Metadata (LOM) in accordance with the IMS Metadata Best Practice and Implementation Guide for [IMD, 06]. The IEEE LOM standard defines a set of metadata elements that can be used to describe learning resources, but does not describe assessment resources in sufficient detail. The application profile provided in this document therefore extends the IEEE LOM to meet the specific needs of QTI developers wishing to associate metadata with items (as defined by the accompanying Item Information Model). QTIv3.0 further extends this to enable the description of tests, pools and object banks.

2.1.3. Usage Data

QTI Usage Data defines the exchange of statistical information about the usage of a set of items. The corresponding documentation [QTI-UD-30] provides detailed information about the data model. While the expectation is that the original definition of the corresponding Test and Items is based upon the use of the QTIv3.0 Assessment, Section and Item specification, this is not a pre-requisite for the use of this usage data representation.

The root class is 'UsageData'. Usage data, most commonly item statistics, do not form part of an assessmentItem directly because they always relate to some context or domain in which the statistics are valid. Therefore, this specification defines a separate class for describing these statistics. Each statistic refers to both its context and to the assessmentItem(s) it relates to. Therefore, instances of this class are bound and packaged separately for interoperability.

2.1.4. Results Reporting

QTI Result Reporting defines the exchange of reporting the results of an assessment. The corresponding documentation [QTI-RR-30] provides detailed information about the model and specifies the associated requirements on delivery engines. While the expectation is that the original definition of the corresponding Test and Items is based upon the use of the QTIv3.0 Assessment, Section and Item specification, this is not a pre-requisite for the use of this result reporting representation.

The root class is 'AssessmentResult'. An AssessmentResult is used to report the results of a candidate's interaction with a test and/or one or more items attempted. Information about the test is optional, in some systems it may be possible to interact with items that are not organized into a test at all. For example, items that are organized with learning resources and presented individually in a formative context.

2.2. Items

In this specification an assessment item encompasses the information that is presented to a candidate and information about how to score the item. Scoring takes place when candidate responses are transformed into outcomes by response processing rules. It is sometimes desirable to have several different items that appear the same to the candidate but which are scored differently. In this specification, these are distinct items by definition and must therefore have distinct identifiers. To help facilitate the exchange of items that share significant parts of their presentation this specification supports the inclusion of separately managed item fragments in the itemBody. The core functionality of an Item is defined using the classes:

2.2.1. The Item Session Lifecycle

An item session is the accumulation of all the attempts at a particular instance of an item made by a candidate. In some types of test, the same item may be presented to the candidate multiple times e.g. during 'drill and practice'. Each occurrence or instance of the item is associated with its own item session. Figure 2.1, illustrates the user-perceived states of the item session. Not all states will apply to every scenario, for example feedback may not be provided for an item or it may not be allowed in the context in which the item is being used. Similarly, the candidate may not be permitted to review their responses and/or examine a model solution. In practice, systems may support only a limited number of the indicated state transitions and/or support other state transitions not shown here.

2.2.2. Item Variables

Item variables are declared by variable declarations: context, response, outcome or template variables. All variables must be declared except for the built-in session variables referred to below which are declared implicitly and must not be declared. The purpose of the declaration is to associate an identifier with the variable and to identify the runtime type of the variable's value. An item variable may have no value at all, in which case it is said to have the special value NULL. For example, if the candidate has not yet had an opportunity to respond to an interaction then any associated response variable will have a NULL value. Empty containers and empty strings are always treated as NULL values. The declaration of variables is defined by the classes:

2.2.2.1. Context Variable

Context variables are declared by context declarations. Their intended purpose is to provide an information binding mechanism between a Delivery Engine, or a Scoring Engine, and an Assessment Item or an Assessment Test.

For example, an item might have different response evaluation (response processing) instructions depending on the test where/when the item is used. In this case, a response condition might evaluate the value of a context variable containing the test's identifier, and branch accordingly.

There is one built-in context variable: 'QTI_CONTEXT', which has record cardinality. Within the QTI_CONTEXT record, there are three built-in fields: "testIdentifier", "candidateIdentifier", and "environmentIdentifier", all of which have base-type string. QTI_CONTEXT is a built-in variable and so any references within an item or an assessment to the QTI_CONTEXT variable, or to the three built-in fields, must succeed i.e. it MUST NOT result in a null pointer exception.

Implementors of Delivery/Scoring Engines should take care to set the value of QTI_CONTEXT prior to any further processing e.g. template, response, or outcome processing. This is so that all processing instructions have the proper context available in the information model.

2.2.2.2. Response Variable

Response variables are declared by response declarations and bound to interactions in the itemBody. Each response variable declared may be bound to one and only one interaction. At runtime, response variables are instantiated as part of an item session. Their values are always initialized to NULL (no value) regardless of whether or not a default value is given in the declaration. A response variable with a NULL value indicates that the candidate has not offered a response, either because they have not attempted the item at all or because they have attempted it and chosen not to provide a response. If a default value has been provided for a response variable then the variable is set to this value at the start of the first attempt. If the candidate never attempts the item, in other words, the item session passes straight from the initial state to the closed state without going through the interacting state, then the response variable remains NULL and the default value is never used.

Implementors of Delivery Engine's should take care when implementing user interfaces for items with default response variable values. If the associated interaction is left in the default state (i.e., representing the default value) then it is important that the system is confident that the candidate intended to submit this value and has not simply failed to notice that a default has been provided. This is especially true if the candidate's attempt ended due to some external event, such as running out of time. The techniques required to distinguish between these cases are an issue for user interface design and are therefore out of scope for this specification.

There are two built-in response variables: 'numAttempts' and 'duration'. These are declared implicitly and must not appear in a 'response declaration'.

All Delivery Engines must maintain the value of numAttempts. This is a single integer that records the number of attempts at each item the candidate has taken. The value defaults to '0' initially and then increases by '1' at the start of each attempt.

Systems that support Time Dependent Items must also maintain the value of duration. The duration is defined as being a single float that records the accumulated time (in seconds) of all Candidate Sessions for all Attempts. In other words the time between the beginning and the end of the item session minus any time the session was in the suspended state. The resolution of the duration must be at least 1s and should be 0.1s or smaller. If the resolution is denoted by epsilon then each value of duration represents the range of values 'duration' <= 't' <= 'duration+epsilon'. In other words, duration values are truncated.

The value of duration for items that are not time dependent must not be used in any item or test-level expression, though systems should still report it in itemResults when it is known.

2.2.2.3. Outcomes Variable

Outcome variables are declared by outcome declarations. Their value is set either from a default given in the declaration itself or by a response rule during response processing.

Items that declare a numeric outcome variable representing the candidate's overall performance on the item should use the outcome name 'SCORE' for the variable. SCORE MUST be a float.

Items that declare a maximum score (in multiple response choice interactions, for example) should do so by declaring the 'MAXSCORE' variable. MAXSCORE MUST be a float.

Items or tests that want to make the fact that the candidate scored above a predefined threshold available as a variable should use the 'PASSED' variable. PASSED MUST be a boolean.

At runtime, outcome variables are instantiated as part of an item session. Their values may be initialized with a default value and/or set during response processing. If no default value is given in the declaration then the outcome variable is initialized to NULL unless the outcome is of a numeric type (integer or float) in which case it is initialized to 0.

For Non-adaptive Items, the values of the outcome variables are reset to their default values prior to each invocation of response processing. For Adaptive Items the outcome variables retain the values that were assigned to them during the previous invocation of response processing. For more information, see Response Processing (Subsection 2.5).

There is one built-in outcome variable, 'completionStatus', that is declared implicitly and must not appear in an outcome declaration. Delivery Engines must maintain the value of the built-in outcome variable completionStatus, a single identifier. It starts with the reserved value "not_attempted". At the start of the first attempt it changes to the reserved value "unknown". It remains with this value for the duration of the item session unless set to a different value by a setOutcomeValue rule in responseProcessing. There are four permitted values:

Any one of these values may be set during response processing. If an Adaptive Item sets completionStatus to completed then the session must be placed into the closed state, however an item session is not required to wait for the completed signal before terminating, it may terminate in response to a direct request from the candidate, through running out of time or through some other exceptional circumstance. Adaptive Items must maintain a suitable value and should set completionStatus to "completed" to indicate when the cycle of interaction, response processing and feedback must stop. Non-adaptive Items are not required to set a value for completionStatus, but they may do so. Delivery Engines are encouraged to use the value of completionStatus when communicating externally

2.3. The Content Model

Most of the content within QTI is used in the content of the AssessmentItem. The item body contains the text, graphics, media objects and interactions that describe the item's content and information about how it is structured. The body is presented by combining it with stylesheet information, either explicitly or implicitly using the default style rules of the delivery or authoring system.

The body must be presented to the candidate when the associated item session is in the interacting state. In this state, the candidate must be able to interact with each of the visible interactions and therefore set or update the values of the associated response variables. The body may be presented to the candidate when the item session is in the closed or review state. In these states, although the candidate's responses should be visible, the interactions must be disabled so as to prevent the candidate from setting or updating the values of the associated response variables. Finally, the body may be presented to the candidate in the solution state, in which case the correct values of the response variables must be visible and the associated interactions disabled.

The content model employed by this specification uses many concepts taken directly from [XHTML, 10]. In effect, this part of the specification defines a profile of XHTML. Only some of the elements defined in XHTML are allowable in an assessmentItem and of those that are, some have additional constraints placed on their attributes. Only those elements from XHTML that are explicitly defined within this specification can be used (see Subsection 2.3.2 XHTML Elements [XHTML, 10] for details). Finally, this specification defines some new elements which are used to represent the interactions and to control the display of Integrated Feedback and content restricted to one or more of the defined content views.

2.3.1. Basic Classes

Underpinning the content model are a number of abstract classes that are used to group elements of the body into categories that define peer-groups. These abstract classes are:

2.3.2. XHTML Elements

The structural elements of the content model are taken from [XHTML, 10]. Only those characteristics listed here may be used (including attributes inherited from parent classes). By default, elements and attributes have the same interpretation and restrictions as the corresponding elements and attributes in [XHTML, 10].

2.3.2.1. Text Elements

2.3.2.2. List Elements

2.3.2.3. Object Elements

2.3.2.4. Presentation Elements

2.3.2.5. Table Elements

2.3.2.6. Image Elements

2.3.2.7. Hypertext Element

2.3.2.8. HTML5 Elements

2.3.3. MathML

MathML defines a Markup Language for describing mathematical notation using XML [MathML3, 14]. The primary purpose of MathML is to provide a language for embedding mathematical expressions into other documents, in particular into HTML documents.

It is often desirable to vary elements of a mathematical expression when creating item templates. Although it is impossible to embed objects such as printed variable defined for that purpose within a math object the techniques described in this section can be used to achieve a similar effect. In MathML, numbers are represented either by the 'mn' or 'cn' tags, for presentation or content representation respectively. Similarly, 'mi' and 'ci' represent identifiers. If mathVariable is set in a template variable's declaration then all instances of 'mi' and 'ci' that match the name of the template variable must be replaced by 'mn' and 'cn' respectively with the template variable's value as their content. It is possible that this technique of expanding template variables will be extended to other elements of MathML in future. The set of classes that support the MathML are:

2.3.4. Variable Content

This specification defines two methods by which the content of an assessmentItem can vary depending on the state of the item session. The first method is based on the value of an outcome variable and the second uses templates. When using outcome variables the classes that support this method are:

The syntax of the format attribute is based on the format conversion specifiers defined in the C programming language [ISO 9899] for use with printf and related functions. Each conversion specifier starts with a '%' character and is followed by zero or more flag characters (#, 0, -, " " [space] and +), an optional digit string indicating the minimum field width, an optional precision (consisting of a "." followed by zero or more digits) and finally one of the conversion type codes: E, e, f, G, g, r, R, i, o, X, or x. These are interpreted according to the C standard with the exception of i, which may be used to format numbers in bases other than 10 using the base attribute, and r/R which round to the number of significant figures given by the precision in the same way as g/G except that scientific format is only used if the requested number of significant figures is less than the number of digits to the left of the decimal point.

2.3.5. Formatting Items with Stylesheets

QTI recommends the use of Cascading Style Sheets (CSS) for controlling the content formating. QTI supports CSS 2.1 [CSS2, 11] and CSS 3.0 [CSS3, 11]. The classes that define the associated stylesheet assignment are:

2.3.6. Accessibility

2.3.7. Internationalization

See Subsection 2.14 for more information on how Internationalization is supported.

2.4. Interactions

2.4.1. Simple Interactions

2.4.1.1. Choice Interaction

The choice interaction presents a set of choices to the candidate. The candidate's task is to select one or more of the choices, up to a maximum of max-choices. The interaction is always initialized with no choices selected. The qti-choice-interaction must be bound to a response variable with a base-type of identifier and single or multiple cardinality. The relevant classes are:

2.4.1.2. Order Interaction

In an order interaction the candidate's task is to reorder the choices, the order in which the choices are displayed initially is significant. By default the candidate's task is to order all of the choices but a subset of the choices can be requested using the max-choices and min-choices attributes. When specified the candidate must select a subset of the choices and impose an ordering on them. If a default value is specified for the response variable associated with an order interaction then its value should be used to override the order of the choices specified here. By its nature, an order interaction may be difficult to render in an unanswered state, especially in the default case where all choices are to be ordered. Implementors should be aware of the issues concerning the use of default values described in the section on Response Variables. The qti-order-interaction must be bound to a response variable with a base-type of identifier and ordered cardinality only. The relevant classes are:

2.4.1.3. Associate Interaction

An associate interaction is a blockInteraction that presents candidates with a number of choices and allows them to create associations between them. The qti-associate-interaction must be bound to a response variable with base-type pair and either single or multiple cardinality. The relevant classes are:

2.4.1.4. Match Interaction

A match interaction is a block interaction that presents candidates with two sets of choices and allows them to create associates between pairs of choices in the two sets, but not between pairs of choices in the same set. Further restrictions can still be placed on the allowable associations using the match-max attribute of the choices. The qti-match-interaction must be bound to a response variable with base-type 'directedPair' and either single or multiple cardinality. The relevant classes are:

2.4.1.5. Gap Match Interaction

A gap match interaction is a blockInteraction that contains a number gaps that the candidate can fill from an associated set of choices. The candidate must be able to review the content with the gaps filled in context, as indicated by their choices. The qti-gap-match-interaction must be bound to a response variable with base-type 'directedPair' and either single or multiple cardinality, depending on the number of gaps. The choices represent the source of the pairing and gaps the targets. Each gap can have at most one choice associated with it. The maximum occurrence of the choices is controlled by the match-max attribute of qti-gap-choice. The relevant classes are:

2.4.2. Text-based Interactions

2.4.2.1. Inline Choice Interaction

An inline choice is an inlineInteraction that presents the user with a set of choices, each of which is a simple piece of text. The candidate's task is to select one of the choices. Unlike the qti-choice-interaction, the delivery engine must allow the candidate to review their choice within the context of the surrounding text. The qti-inline-choice-interaction must be bound to a response variable with a base-type of identifier and single cardinality only. The relevant classes are:

2.4.2.2. Text Interaction

A text-entry interaction is an inline-interaction that obtains a simple piece of text from the candidate. Like qti-inline-choice-interaction, the delivery engine must allow the candidate to review their choice within the context of the surrounding text. The qti-text-entry-interaction must be bound to a response variable with either single or record cardinality only. For single cardinality the base-type must be one of string, integer or float. For record cardinality the fields are 'stringValue', 'floatValue', etc. The relevant class is:

TextEntryInteraction is a String interaction and can be bound to numeric response variables, instead of strings, if desired. If detailed information about a numeric response is required then the string interaction can be bound to a response variable with record cardinality. The resulting value contains the following fields:

2.4.2.3. Extended Text Interaction

An extended text interaction is a blockInteraction that allows the candidate to enter an extended amount of text. The extendedTextInteraction must be bound to a response variable of single, multipe, ordered or record cardinality. If the response variable has record cardinality the fields in the records are 'stringValue' 'floatValue', etc. Otherwise it must have a base-type of string, integer or float. When bound to response variable with single cardinality a single string of text is required from the candidate. When bound to a response variable with multiple or ordered cardinality several separate text strings may be required, see maxStrings below. The relevant class is:

ExtendedTextInteraction is a String interactions and can be bound to numeric response variables, instead of strings, if desired. If detailed information about a numeric response is required then the string interaction can be bound to a response variable with record cardinality. The resulting value contains the following fields:

2.4.2.4. Hot Text Interaction

The hottext interaction presents a set of choices to the candidate represented as selectable runs of text embedded within a surrounding context, such as a simple passage of text. Like choice interaction, the candidate's task is to select one or more of the choices, up to a maximum of max-choices. The interaction is initialized from the 'defaultValue' of the associated response variable, a NULL value indicating that no choices are selected (the usual case). The hottext-interaction must be bound to a response variable with a base-type of identifier and single or multiple cardinality. The relevant classes are:

2.4.3. Graphical Interactions

2.4.3.1. Hotspot Interaction

A hotspot interaction is a graphical interaction with a corresponding set of choices that are defined as areas of the graphic image. The candidate's task is to select one or more of the areas (hotspots). The hotspot interaction should only be used when the spacial relationship of the choices with respect to each other (as represented by the graphic image) is important to the needs of the item. Otherwise, choiceInteraction should be used instead with separate material for each option. The delivery engine must clearly indicate the selected area(s) of the image and may also indicate the unselected areas as well. Interactions with hidden hotspots are achieved with the selectPointInteraction. The hotspot interaction must be bound to a response variable with a base-type of identifier and single or multiple cardinality.The relevant classes are:

2.4.3.2. Graphic Order Interaction

A graphic order interaction is a graphic interaction with a corresponding set of choices that are defined as areas of the graphic image. The candidate's task is to impose an ordering on the areas (hotspots). The order hotspot interaction should only be used when the spatial relationship of the choices with respect to each other (as represented by the graphic image) is important to the needs of the item. Otherwise, order-interaction should be used instead with separate material for each option. The delivery engine must clearly indicate all defined area(s) of the image. The order hotspot interaction must be bound to a response variable with a base-type of identifier and ordered cardinality.The relevant classes are:

2.4.3.3. Graphic Associate Interaction

A graphic associate interaction is a graphic interaction with a corresponding set of choices that are defined as areas of the graphic image. The candidate's task is to associate the areas (hotspots) with each other. The graphic associate interaction should only be used when the graphical relationship of the choices with respect to each other (as represented by the graphic image) is important to the needs of the item. Otherwise, associateInteraction should be used instead with separate Material for each option. The delivery engine must clearly indicate all defined area(s) of the image. The graphicAssociateInteraction must be bound to a response variable with base-type pair and either single or multiple cardinality. The relevant classes are:

2.4.3.4. Graphic Gap Match Interaction

A graphic gap-match interaction is a graphical interaction with a set of gaps that are defined as areas (hotspots) of the graphic image and an additional set of gap choices that are defined outside the image. The candidate must associate the gap choices with the gaps in the image and be able to review the image with the gaps filled in context, as indicated by their choices. Care should be taken when designing these interactions to ensure that the gaps in the image are a suitable size to receive the required gap choices. It must be clear to the candidate which hotspot each choice has been associated with. When associated, choices must appear wholly inside the gaps if at all possible and, where overlaps are required, should not hide each other completely. If the candidate indicates the association by positioning the choice over the gap (e.g. drag and drop) the system should 'snap' it to the nearest position that satisfies these requirements. The graphic-gap-match-interaction must be bound to a response variable with base-type 'directedPair' and multiple cardinality. The choices represent the source of the pairing and the gaps in the image (the hotspots) the targets. Unlike the simple gap-match-interaction, each gap can have several choices associated with it if desired, furthermore, the same choice may be associated with an associable-hotspot multiple times, in which case the corresponding directed pair appears multiple times in the value of the response variable. The relevant classes are:

2.4.3.5. Select Point Interaction

Like hotspotInteraction, a select point interaction is a graphic interaction. The candidate's task is to select one or more points. The associated response may have an areaMapping that scores the response on the basis of comparing it against predefined areas but the delivery engine must not indicate these areas of the image. Only the actual point(s) selected by the candidate shall be indicated. The select point interaction must be bound to a response variable with a base-type of point and single or multiple cardinality. The relevant class is:

2.4.3.6. Position Object Interaction

The position object interaction consists of a single image which must be positioned on another graphic image (the stage) by the candidate. Like selectPointInteraction, the associated response may have an areaMapping that scores the response on the basis of comparing it against predefined areas but the delivery engine must not indicate these areas of the stage. Only the actual position(s) selected by the candidate shall be indicated. The position object interaction must be bound to a response variable with a base-type of point and single or multiple cardinality. The point records the coordinates, with respect to the stage, of the centre point of the image being positioned. The relevant classes are:

2.4.4. Miscellaneous Interactions

2.4.4.1. Slider Interaction

The slider interaction presents the candidate with a control for selecting a numerical value between a lower and upper bound. It must be bound to a response variable with single cardinality with a base-type of either integer or float. The relevant class is:

2.4.4.2. Media Interaction

The media interaction allows more control over the way the candidate interacts with a time-based media object and allows the number of times the media object was experienced to be reported in the value of the associated response variable, which must be of base-type integer and single cardinality. The relevant class is:

2.4.4.3. Drawing Interaction

The drawing interaction allows the candidate to use a common set of drawing tools to modify a given graphical image (the canvas). It must be bound to a response variable with base-type file and single cardinality. The result is a file in the same format as the original image. The relevant class is:

2.4.4.4. Upload Interaction

The upload interaction allows the candidate to upload a pre-prepared file representing their response. It must be bound to a response variable with base-type file and single cardinality. The relevant class is:

2.4.4.5. Custom Interaction

NOTE THAT THIS IS A DEPRECATED FEATURE. Instead, implementations should make use of Portable Custom Interactions (PCIs).

Custom interactions can be used by a delivery engine to support interactions not defined in the QTI specification, however such extensions have no defined inter-operability between delivery engines. As Portable Custom Interactions are portable between delivery engines they are preferred over the use of Custom Interaction. The relevant class is:

2.4.4.6. Portable Custiom Interaction (PCI)

The PCI provides a way to use new custom interaction types in QTI who's implementation is portable between QTI delivery engines [PCI, 20]. A PCI is implemented as a dynamically loadable Javascript module (which may have dependent modules) which may be developed by a third party, included into a QTI content package which includes items using that custom interaction type and dynamically loaded into any delivery engine supporting the QTI PCI Application Programming Interface. The relevant class is:

2.4.5. Alternative Ways to End an Attempt

The end-attempt interaction is a special type of interaction which allows item authors to provide the candidate with control over the way in which the candidate terminates an attempt. The candidate can use the interaction to terminate the attempt (triggering response processing) immediately, typically to request a hint. It must be bound to a response variable with base-type boolean and single cardinality.

If the candidate invokes response processing using an end-attempt interaction then the associated response variable is set to true. If response processing is invoked in any other way, either through a different end-attempt interaction or through the default method for the delivery engine, then the associated response variable is set to false. The default value of the response variable is always ignored. The relevant class is:

2.5. Response Processing

Response processing is the process by which the Delivery Engine assigns outcomes based on the candidate's responses. The state representation for the response processing is shown in Figure 2.2. The outcomes may be used to provide feedback to the candidate. Feedback is either provided immediately following the end of the candidate's attempt or it is provided at some later time, perhaps as part of a summary report on the item session.

2.5.1. Response Processing Templates

Response processing involves the application of a set of response rules, including the testing of response conditions and the evaluation of expressions involving the item variables. For delivery engines that are only designed to support very simple use cases the implementation of a system for carrying out this evaluation, conditional testing and processing may pose a barrier to the adoption of the specification.

To alleviate this problem, the implementation of generalized response processing is an optional feature. Engines that do not support it can instead implement a smaller number of standard response processors called response processing templates described below. These templates are described using the processing language defined in this specification and are distributed (in XML form) along with it. Delivery engines that support generalized response processing do not need to implement special mechanisms to support them as a template file can be parsed directly while processing the assessmentItem that refers to it.

Delivery engines that do not support generalized response processing but do support response processing mechanisms that go beyond the standard templates described below should, where possible, define templates of their own. Authors wishing to write items for those delivery engines can then refer to these custom templates. Publishing these custom templates will then ensure that these items can be used with delivery engines that do support generalized response processing.

2.5.2. Generalized Response Resprocessing

2.6. Modal Feedback

Modal feedback is shown to the candidate directly following response processing. The value of an outcome variable is used in conjunction with the 'show-hide' and 'identifier' attributes to determine whether or not the feedback is shown in a similar way to the non-modal feedback. The modal feedback is described using the classes:

2.7. Item Templates

Item templates are templates that can be used for producing large numbers of similar items. Such items are often called cloned items. Item templates can be used to produce items by special purpose Cloning Engines or, where delivery engines support them, be used directly to produce a dynamically chosen clone at the start of an item session.

Each item cloned from an item template is identical except for the values given to a set of template variables. A qti-assessment-item is therefore an item template if it contains one or more template declarations and a set of template processing rules for assigning them values.

A cloning engine that creates cloned items must assign a different identifier to each clone and record the values of the template variables used to create it. A report of an item session with such a clone can then be transformed into an equivalent report for the original item template by substituting the item template's identifier for the cloned item's identifier and adding the values of the template variables to the report. The class that supports template declaration is:

2.7.1. Using Template Variables in an Item's Body

Template variables can be referred to qti-printed-variable objects in the item body. The value of the template variable is used to create an appropriate run of text that is displayed. Template variables can also be used to conditionally control content through qti-template-block and qti-template-inline objects in a similar way to outcome variables with feedback. Finally, template variables can be used to control the visibility of choices in interactions. The set of template-based classes that support the use of template variables in an Item are (the set of interaction-related classes are not included in this list):

2.7.2. Using Template Variables in Operator Attributes Values

Some of the operators used in expressions have attributes to control their behaviour. The value of a template variable evaluated at the time the operator itself is evaluated, can be used as the value of some such attributes by using a reference to a template variable of the appropriate base-type and cardinality instead of a value from the value space of the attribute's target type. Attributes that support this type of attribute value substitution are declared with one of the following types:

When binding variable references as strings the variable's identifier must be enclosed in braces. For example, the string "{myVariable}" refers to the template variable with identifier myVariable. A references must match the identifier in a corresponding 'template declaration'.

2.7.3. Template Processing

Template processing consists of one or more TemplateRules that are followed by the cloning engine or delivery system in order to assign values to the template variables. Template processing is identical in form to response processing except that the purpose is to assign values to template variables, not outcome variables. The classes that provide template processing are:

2.8. Tests, Testparts and Sections

A test is represented by the AssessmentTest class. A test is a group of assessment-items with an associated set of rules that determine which of the items the candidate sees, in what order, and in what way the candidate interacts with them. The rules describe the valid paths through the test, when responses are submitted for response processing and when (if at all) feedback is to be given.

There are two constructs that are used to group togther Items: TestParts and Sections. A TestPart is used to divide a Test into parts that would normally be undertaken in separate test sessions. Whereas, a Section establishes groups of Items that have some common pedagogic testing objective. Sections are used to collect together Items which will then be presented to the learner. The order of presentation can be controlled using selection and ordering algorithms. A Test must have at lest one TestPart. A TestPart must have at least one Section. A Section may contain child Sections. A Section must contain at least one other Section or Item. The set of classes that realise the core test structures are:

Any Test, Section and/or Item or combination is exchanged as a '.zip' file. The format of this file is based upon the IMS Content Packaging v1.2 specification [CP-12]. See the QTI 3.0 ASI XSD Binding specification [QTI-BIND-30] for further details on how content packaging is used.

2.8.1. The Structure of a Test

For each test session, items and sub-sections are selected and arranged into order according to rules defined in the containing section. This process of selection and ordering defines a basic structure for each part of the test on a per-session basis. The paths that a candidate may take through this structure are then controlled by the mode settings for the test part and possibly by further pre-conditions or branch-rules evaluated during the test session itself. Figure 2.4 illustrates part of a test and the way the items are structured into sections and sub-sections.

See Subsection 2.8.4 for information on how adaptive sequencing using the IMS CAT [CAT, 19] specification is achieved.

2.8.2. Navigation and Submission

This specification defines two ways in which the overall behaviour of each test part can be controlled: the navigation mode and the submission mode (both of which are characteristics on the TestPart class).

The navigation mode determines the general paths that the candidate may take. A qti-test-part in linear mode restricts the candidate to attempt each item in turn. Once the candidate moves on they are not permitted to return. A test-part in nonlinear mode removes this restriction - the candidate is free to navigate to any item in the test at any time. Test delivery systems are free to implement their own user interface elements to facilitate navigation provided they honour the navigation mode currently in effect. A test delivery system may implement nonlinear mode simply by providing a method to step forward or backwards through the qti-test-part.

The submission mode determines when the candidate's responses are submitted for response processing. A qti-test-part in individual mode requires the candidate to submit their responses on an item-by-item basis. In simultaneous mode the candidate's responses are all submitted together at the end of the qti-test-part.

The choice of submission mode determines the states through which each item's session can pass during the test. In simultaneous mode, response processing cannot take place until the qti-test-part is complete so each item session passes between the interacting and suspended states only. By definition the candidate can take one and only one attempt at each item and feedback cannot be seen during the test. Whether or not the candidate can return to review their responses and/or any item-level feedback after the test, is outside the scope of this specification. Simultaneous mode is typical of paper-based tests.

In individual mode response processing may take place during the test and the item session may pass through any of the states described in Items, subject to the item-session-control settings in force. Care should be taken when designing user interfaces for systems that support nonlinear navigation mode in combination with individual submission. With this combination candidates may change their responses for an item and then leave it in the suspended state by navigating to a different item in the same part of the test. Test delivery systems need to make it clear to candidates that there are unsubmitted responses (akin to unsaved changes in a traditional document editing system) at the end of the qti-test-part. A test delivery system may force candidates to submit or discard such responses before moving to a different item in individual mode if this is more appropriate.

2.8.3. Pre-conditions and Branching

Pre-conditions and branch rules are only applicable to parts of the test that are navigated in linear mode. In nonlinear mode they are ignored. The overarching test parts are effectively navigated in nonlinear mode and so can therefore have associated pre-conditions and branch rules.

2.8.3.1. Pre-conditions

Pre-conditions and branch rules are advanced concepts to enable adaptation within an assessment-test. A primary consideration has been to limit the complexity of supporting delivery engines while still enabling some items (or whole sections and test parts) to be skipped depending on the candidate's responses to items presented earlier in the test. The pre-condition functionality is provided through the attribute:

2.8.3.2. Branching

A branch-rule is a simple expression attached to a qti-assessment-item-ref, qti-assessment-section or qti-test-part that is evaluated after the item, section or part has been presented to the candidate. If the expression evaluates to true the test jumps forward to the item, section or part referred to by the target identifier. In the case of an item or section, the target must refer to an item or section in the same test-part that has not yet been presented. For qti-test-parts, the target must refer to another qti-test-part. The branching functionality is provided in the class:

The above definition restricts the navigation paths through a linear test part to being trees. In other words, cycles are not allowed. In most cases, repetition can be achieved by using a section that selects with-replacement up to a suitable upper bound of repitition in combination with a pre-condition or branch-rule that terminates the section early when (or if) a certain outcome has been achieved. This technique might be used in conjunction with one or more Item Templates to achieve drill and practice, for example. However, unbounded repetition is not supported.

2.8.4. Adaptive Sequencing using IMS CAT

The IMS CAT specification defines the adaptive sequencing of operations after an item attempt/submission as follows:

2.8.5. Time Limits

In the context of a specific qti-assessment-test an item, or group of items, may be subject to a time constraint. This specification supports both minimum and maximum time constraints. The controlled time for a single item is simply the duration of the item session as defined by the builtin response variable duration. For qti-assessment-sections, qti-test-parts and whole qti-assessment-tests the time limits relate to the durations of all the item sessions plus any other time spent navigating that part of the test. In other words, the time includes time spent in states where no item is being interacted with, such as dedicated navigation screens.

The allow-late-submission attribute regulates whether a candidate's response that is beyond the max-time should still be accepted.

Minimum times are applicable to qti-assessment-sections and qti-assessment-items only when linear navigation mode is in effect.

The time spent on the test is recorded as if it were a built-in response variable called 'duration' declared at the test-level and of base-type duration and single cardinality. Similarly, time spent on test parts or sections are treated as built-in response variables declared within each respective scope. The values of these durations can be refered to during outcome-processing by using the variable name duration prefixed with the identifier of the part or section followed by the period character. See the variable expression for further information. Note that the durations may be changed depending on the relevant accessibility values in the Personal Needs & Preferences settings for the learner. The classes that realise the time limits are:

2.8.6. Rubric Blocks

A rubric block identifies part of the content that represents instructions (candidate instructions, scoring instructions, authoring instructions, etc.) to one or more of the actors that view the item in the context of their role. How that information is intended to be used is identified by the a use attribute. Although rubric blocks are defined as simpleBlocks they MUST NOT contain interactions but may contain template blocks. Rubric Blocks MUST NOT be nested within other Rubric Blocks.

2.9. Outcome Processing

Outcome processing takes place each time the candidate submits the responses for an item (when in individual submission mode) or a group of items (when in simultaneous submission mode). It happens after any (item level) response processing triggered by the submission. The values of the test's outcome variables are always reset to their defaults prior to carrying out the instructions described by the outcome rules. Because outcome processing occurs each time the candidate submits responses the resulting values of the test-level outcomes may be used to activate test-level feedback during the test or to control the behaviour of subsequent parts through the use of pre-conditions and branch rules. The structure of outcome processing is similar to that of response processing. The outcomes processing functionality is described in the classes:

2.10. Test-level Feedback

Test feedback is shown to the candidate either directly following outcome processing (during the test) or at the end of the test-part or assessment-test as appropriate (referred to as atEnd). The core functionality of a test feedback is defined using the classes:

2.11. Expressions

QTI contains a wide range of expressions used to support the response processing, outcomes processing and template processing capabilities. Expressions are used to assign values to variables and to control conditional actions in response, outcomes and template processing. An expression can be a simple reference to the value of an item variable, a constant value from one of the value sets defined by base-types or a hierarchical expression operator. Like item variables, each expression can also have the special value NULL. The expressions are grouped into two abstract classes:

2.11.1. Builtin General Expressions

There are several built-in general expressions for handling constants, random values and the values of the various item variables (response, outcome and template). These built-in expressions are realised using the classes:

2.11.1.1. BaseValue Expression

The simplest expression returns a single value from the set defined by the given base-type.

2.11.1.2. Variable Expression

This expression looks up the value of an item variable that has been declared in a corresponding variable declaration or is one of the built-in variables. The result has the base-type and cardinality declared for the variable subject to the type promotion of weighted outcomes.

During outcomes processing, values taken from an individual item session can be looked up by prefixing the name of the item variable with the identifier assigned to the item in the qti-assessment-item-ref, separated by a period character. For example, to obtain the value of the SCORE variable in the item referred to as Q01 you would use a variable instance with identifier Q01.SCORE.

In adaptive tests that contain items that are allowed to be replaced (i.e. that have the with-replacement attribute set to "true"), the same item can be instantiated more than once. In order to access the outcome variable values of each instantiation, a number that denotes the instance's place in the sequence of the item's instantiation is inserted between the item variable identifier and the item variable, separated by a period character. For example, to obtain the value of the SCORE variable in the item referred to as Q01 in its second instantiation you would use a variable instance, prefixed by the instantiation sequence number, prefixed by an identifier Q01.2.SCORE.

When looking up the value of a response variable it always takes the value assigned to it by the candidate's last submission. Unsubmitted responses are not available during expression evaluation.

The value of an item variable taken from an item instantiated multiple times from the same qti-assessment-item-ref (through the use of selection with-replacement) is taken from the last instance submitted if submission is simultaneous, otherwise it is undefined.

2.11.1.3. Default Expression

This expression looks up the declaration of an item variable and returns the associated qti-default-value or NULL if no default value was declared. When used in outcomes processing item identifier prefixing (see qti-variable) may be used to obtain the default value from an individual item.

2.11.1.4. Correct Expression

This expression looks up the declaration of a response variable and returns the associated qti-correct-response or NULL if no correct value was declared. When used in outcomes processing item identifier prefixing (see qti-variable) may be used to obtain the correct response from an individual item.

2.11.1.5. Map Response Exprssion

This expression looks up the value of a response variable and then transforms it using the associated mapping, which must have been declared. The result is a single float. If the response variable has single cardinality then the value returned is simply the mapped target value from the map. If the response variable has multiple or ordered cardinality then the value returned is the sum of the mapped target values. This expression cannot be applied to variables of record cardinality.

For example, if a mapping associates the identifiers {A,B,C,D} with the values {0,1,0.5,0} respectively then qti-map-response will map the single value 'C' to the numeric value 0.5 and the set of values {C,B} to the value 1.5.

If a container contains multiple instances of the same value then that value is counted once only. To continue the example above {B,B,C} would still map to 1.5 and not 2.5.

2.11.1.6. Map Response Point Expression

This expression looks up the value of a response variable that must be of base-type point, and transforms it using the associated qti-area-mapping. The transformation is similar to qti-map-response except that the points are tested against each area in turn. When mapping containers each area can be mapped once only. For example, if the candidate identified two points that both fall in the same area then the qti-mapped-value is still added to the calculated total just once.

2.11.1.7. Math Constant Expression

The result is a mathematical constant returned as a single float, e.g. Pi and e.

2.11.2. Expressions Used only in Outcomes Processing

There are several expressions for handling outcomes processing only. These expressions are realised using the classes:

2.11.2.1. Number Correct Expression

This expression, which can only be used in outcomes processing, calculates the number of items in a given sub-set, for which the all defined response variables match their associated qti-correct-response. Only items for which all declared response variables have correct responses defined are considered. The result is an integer with single cardinality.

2.11.2.2. Number Incorrect Expression

This expression, which can only be used in outcomes processing, calculates the number of items in a given sub-set, for which at least one of the defined response variables does not match its associated qti-correct-response. Only items for which all declared response variables have correct responses defined and have been attempted at least once are considered. The result is an integer with single cardinality.

2.11.2.3. Number Presented Expression

This expression, which can only be used in outcomes processing, calculates the number of items in a given sub-set that have been attempted (at least once). In other words, items with which the user has interacted, whether or not they provided a response. The result is an integer with single cardinality.

2.11.2.4. Number Responded Expresson

This expression, which can only be used in outcomes processing, calculates the number of items in a given sub-set that have been attempted (at least once) and for which a response was given. In other words, items for which at least one declared response has a value that differs from its declared default (typically NULL). The result is an integer with single cardinality.

2.11.2.5. Number Selected Expression

This expression, which can only be used in outcomes processing, calculates the number of items in a given sub-set that have been selected for presentation to the candidate, regardless of whether the candidate has attempted them or not. The result is an integer with single cardinality.

2.11.2.6. Outcome Minimum Expression

This expression, which can only be used in outcomes processing, simultaneously looks up the normal-minimum value of an outcome variable in a sub-set of the items referred to in a test. Only variables with single cardinality are considered. Items with no declared minimum are ignored. The result has cardinality multiple and base-type float.

2.11.2.7. Outcome Maximum Expression

This expression, which can only be used in outcomes processing, simultaneously looks up the normal-maximum value of an outcome variable in a sub-set of the items referred to in a test. Only variables with single cardinality are considered. If any of the items within the given subset have no declared maximum the result is NULL, otherwise the result has cardinality multiple and base-type float.

2.11.2.8. Test Variables Expression

This expression, which can only be used in outcomes processing, simultaneously looks up the value of a qti-item-variable in a sub-set of the items referred to in a test. Only variables with single cardinality are considered, all NULL values are ignored. The result has cardinality multiple. The base-type of the result is integer if all matching values have base-type integer, otherwise it is float and integer values are subject to type promotion.

2.11.3. Operators

Operators are a family of classes derived from expression that obtain their value (referred to as their result) either by modifying a single sub-expression or by combining two or more sub-expressions in a specified way. Operators never effect the values of itemVariables directly, in other words, there are no 'side effects'. All operators have a base-type and cardinality though these may be dependent on the sub-expression(s) they contain. The set of classes that realise these operators are:

2.11.3.1. AnyN Expression

The qti-any-N operator takes one or more sub-expressions each with a base-type of boolean and single cardinality. The result is a single boolean which is true if at least min of the sub-expressions are true and at most max of the sub-expressions are true. If more than n - min sub-expressions are false (where n is the total number of sub-expressions) or more than max sub-expressions are true then the result is false. If one or more sub-expressions are NULL then it is possible that neither of these conditions is satisfied, in which case the operator results in NULL. For example, if min is 3 and max is 4 and the sub-expressions have values {true,true,false,NULL} then the operator results in NULL whereas {true,false,false,NULL} results in false and {true,true,true,NULL} results in true. The result NULL indicates that the correct value for the operator cannot be determined.

2.11.3.2. Custom Operator Expression

The custom operator provides an extension mechanism for defining operations not currently supported by this specification.

2.11.3.3. Equal Expression

The qti-equal operator takes two sub-expressions which must both have single cardinality and have a numerical base-type. The result is a single boolean with a value of true if the two expressions are numerically equal and false if they are not. If either sub-expression is NULL then the operator results in NULL.

2.11.3.4. Equal Rounded Expression

The qti-equal-rounded operator takes two sub-expressions which must both have single cardinality and have a numerical base-type. The result is a single boolean with a value of true if the two expressions are numerically equal after rounding and false if they are not. If either sub-expression is NULL then the operator results in NULL.

2.11.3.5. Field Value Expression

The identifier of the field to be selected. The qti-field-value operator takes a sub-expression with a record container value. The result is the value of the field with the specified field-identifier. If there is no field with that identifier then the result of the operator is NULL.

2.11.3.6. Index Expression

The qti-index operator takes a sub-expression with an ordered container value and any base-type. The result is the nth value of the container. The result has the same base-type as the sub-expression but single cardinality. The first value of a container has index 1, the second 2 and so on. n must be a positive integer. If n exceeds the number of values in the container (or the sub-expression is NULL) then the result of the index operator is NULL. If n is an identifier, it is the value of n at runtime that is used.

2.11.3.7. Inside Expression

The qti-inside operator takes a single sub-expression which must have a base-type of point. The result is a single boolean with a value of true if the given point is inside the area defined by shape and coords. If the sub-expression is a container the result is true if any of the points are inside the area. If either sub-expression is NULL then the operator results in NULL.

2.11.3.8. Multiple Expression

The qti-multiple operator takes 0 or more sub-expressions all of which must have either single or multiple cardinality. Although the sub-expressions may be of any base-type they must all be of the same base-type. The result is a container with multiple cardinality containing the values of the sub-expressions, sub-expressions with multiple cardinality have their individual values added to the result: containers cannot contain other containers. For example, when applied to A, B and {C,D} the multiple operator results in {A,B,C,D}. All sub-expressions with NULL values are ignored. If no sub-expressions are given (or all are NULL) then the result is NULL.

2.11.3.9. Ordered Expression

The qti-ordered operator takes 0 or more sub-expressions all of which must have either single or ordered cardinality. Although the sub-expressions may be of any base-type they must all be of the same base-type. The result is a container with ordered cardinality containing the values of the sub-expressions, sub-expressions with ordered cardinality have their individual values added (in order) to the result: contains cannot contain other containers. For example, when applied to A, B, {C,D} the ordered operator results in {A,B,C,D}. Note that the ordered operator never results in an empty container. All sub-expressions with NULL values are ignored. If no sub-expressions are given (or all are NULL) then the result is NULL.

2.11.3.10. And Expression

The qti-and operator takes one or more sub-expressions each with a base-type of boolean and single cardinality. The result is a single boolean which is true if all sub-expressions are true and false if any of them are false. If one or more sub-expressions are NULL and all others are true then the operator also results in NULL.

2.11.3.11. GCD Expression

The qti-gcd operator takes 1 or more sub-expressions which all have base-type integer and may have single, multiple or ordered cardinality. The result is a single integer equal in value to the greatest common divisor (gcd) of the argument values. If all the arguments are zero, the result is 0, gcd(0,0)=0; authors should beware of this in calculations which require division by the gcd of random values. If some, but not all, of the arguments are zero, the result is the gcd of the non-zero arguments, gcd(0,n)=n if n!=0. If any of the sub-expressions is NULL, the result is NULL. If any of the sub-expressions is not a numerical value, then the result is NULL.

2.11.3.12. LCM Expression

The qti-lcm operator takes 1 or more sub-expressions which all have base-type integer and may have single, multiple or ordered cardinality. The result is a single integer equal in value to the lowest common multiple (lcm) of the argument values. If any argument is zero, the result is 0, lcm(0,n)=0; authors should beware of this in calculations which require division by the lcm of random values. If any of the sub-expressions is NULL, the result is NULL. If any of the sub-expressions is not a numerical value, then the result is NULL.

2.11.3.13. Min Expression

The qti-min operator takes 1 or more sub-expressions which all have numerical base-types and may have single, multiple or ordered cardinality. The result is a single float, or, if all sub-expressions are of integer type, a single integer, equal in value to the smallest of the argument values, i.e. the result is the argument closest to negative infinity. If the arguments have the same value, the result is that same value. If any of the sub-expressions is NULL, the result is NULL. If any of the sub-expressions is not a numerical value, then the result is NULL.

2.11.3.14. Max Expression

The qti-max operator takes 1 or more sub-expressions which all have numerical base-types and may have single, multiple or ordered cardinality. The result is a single float, or, if all sub-expressions are of integer type, a single integer, equal in value to the greatest of the argument values, i.e. the result is the argument closest to positive infinity. If the arguments have the same value, the result is that same value. If any of the sub-expressions is NULL, the result is NULL. If any of the sub-expressions is not a numerical value, then the result is NULL.

2.11.3.15. Or Expression

The qti-or operator takes one or more sub-expressions each with a base-type of boolean and single cardinality. The result is a single boolean which is true if any of the sub-expressions are true and false if all of them are false. If one or more sub-expressions are NULL and all the others are false then the operator also results in NULL.

2.11.3.16. Product Expression

The qti-product operator takes 1 or more sub-expressions which all have numerical base-types and may have single, multiple or ordered cardinality. The result is a single float or, if all sub-expressions are of integer type, a single integer that corresponds to the product of the numerical values of the sub-expressions. If any of the sub-expressions are NULL then the operator results in NULL.

2.11.3.17. Contains Expression

The qti-contains operator takes two sub-expressions which must both have the same base-type and cardinality - either multiple or ordered. The result is a single boolean with a value of true if the qti-container given by the first sub-expression contains the value given by the second sub-expression and false if it doesn't. Note that the qti-contains operator works differently depending on the cardinality of the two sub-expressions. For unordered containers the values are compared without regard for ordering, for example, [A,B,C] contains [C,A]. Note that [A,B,C] does not contain [B,B] but that [A,B,B,C] does. For ordered containers the second sub-expression must be a strict sub-sequence within the first. In other words, [A,B,C] does not contain [C,A] but it does contain [B,C].

If either sub-expression is NULL then the result of the operator is NULL. Like the member operator, the contains operator should not be used on sub-expressions with a base-type of float and must not be used on sub-expressions with a base-type of duration.

2.11.3.18. Delete Expression

The qti-delete operator takes two sub-expressions which must both have the same base-type. The first sub-expression must have single cardinality and the second must be a multiple or ordered container. The result is a new container derived from the second sub-expression with all instances of the first sub-expression removed. For example, when applied to A and {B,A,C,A} the result is the container {B,C}. If either sub-expression is NULL the result of the operator is NULL. The restrictions that apply to the qti-member operator also apply to the qti-delete operator.

2.11.3.19. Divide Expression

The qti-divide operator takes 2 sub-expressions which both have single cardinality and numerical base-types. The result is a single float that corresponds to the first expression divided by the second expression. If either of the sub-expressions is NULL then the operator results in NULL.

Item authors should make every effort to ensure that the value of the second expression is never 0, however, if it is zero or the resulting value is outside the value set defined by float (not including positive and negative infinity) then the operator should result in NULL.

2.11.3.20. Duration Expression

The qti-duration-gte operator takes two sub-expressions which must both have single cardinality and base-type duration. The result is a single boolean with a value of true if the first duration is longer (or equal, within the limits imposed by truncation as described above) than the second and false if it is shorter than the second. If either sub-expression is NULL then the operator results in NULL. See qti-duration-lt for more information about testing the equality of durations.

2.11.3.21. Duration LT Expression

The qti-duration-lt operator takes two sub-expressions which must both have single cardinality and base-type duration. The result is a single boolean with a value of true if the first duration is shorter than the second and false if it is longer than (or equal) to the second. If either sub-expression is NULL then the operator results in NULL.

There is no 'qti-duration-lte' or 'qti-duration-gt' because equality of duration is meaningless given the variable precision allowed by duration. Given that duration values are obtained by truncation rather than rounding it makes sense to test only less-than or greater-than-equal inequalities only. For example, if we want to determine if a candidate took less than 10 seconds to complete a task in a system that reports durations to a resolution of epsilon seconds (epsilon<1) then a value equal to 10 would cover all durations in the range [10,10+epsilon).

2.11.3.22. GT Expression

The qti-gt operator takes two sub-expressions which must both have single cardinality and have a numerical base-type. The result is a single boolean with a value of true if the first expression is numerically greater than the second and false if it is less than or equal to the second. If either sub-expression is NULL then the operator results in NU

2.11.3.23. GTE Expression

The qti-gte operator takes two sub-expressions which must both have single cardinality and have a numerical base-type. The result is a single boolean with a value of true if the first expression is numerically greater than or equal to the second and false if it is less than the second. If either sub-expression is NULL then the operator results in NULL.

2.11.3.24. Integer Divide Expression

The qti-integer divide operator takes 2 sub-expressions which both have single cardinality and base-type integer. The result is the single integer that corresponds to the first expression (x) divided by the second expression (y) rounded down to the greatest integer (i) such that i LTE (x/y). If y is 0, or if either of the sub-expressions is NULL then the operator results in NULL.

2.11.3.25. Integer Modulus Expression

The qti-integer modulus operator takes 2 sub-expressions which both have single cardinality and base-type integer. The result is the single integer that corresponds to the remainder when the first expression (x) is divided by the second expression (y). If z is the result of the corresponding qti-integer-divide operator then the result is x-z*y. If y is 0, or if either of the sub-expressions is NULL then the operator results in NULL.

2.11.3.26. LT Expression

The qti-lt operator takes two sub-expressions which must both have single cardinality and have a numerical base-type. The result is a single boolean with a value of true if the first expression is numerically less than the second and false if it is greater than or equal to the second. If either sub-expression is NULL then the operator results in NULL.

2.11.3.27. LTE Expression

The qti-lte operator takes two sub-expressions which must both have single cardinality and have a numerical base-type. The result is a single boolean with a value of true if the first expression is numerically less than or equal to the second and false if it is greater than the second. If either sub-expression is NULL then the operator results in NULL.

2.11.3.28. Match Expression

The qti-match operator takes two sub-expressions which must both have the same base-type and cardinality. The result is a single boolean with a value of true if the two expressions represent the same value and false if they do not. If either sub-expression is NULL then the operator results in NULL.

The qti-match operator must not be confused with broader notions of equality such as numerical equality. To avoid confusion, the qti-match operator should not be used to compare subexpressions with base-types of float and must not be used on sub-expressions with a base-type of duration.

2.11.3.29. Member Expression

The qti-member operator takes two sub-expressions which must both have the same base-type. The first sub-expression must have single cardinality and the second must be a multiple or ordered container. The result is a single boolean with a value of true if the value given by the first sub-expression is in the container defined by the second sub-expression. If either sub-expression is NULL then the result of the operator is NULL. The member operator should not be used on sub-expressions with a base-type of float because of the poorly defined comparison of values. It must not be used on sub-expressions with a base-type of duration.

2.11.3.30. Power Expression

The qti-power operator takes 2 sub-expression which both have single cardinality and numerical base-types. The result is a single float that corresponds to the first expression raised to the power of the second. If either or the sub-expressions is NULL then the operator results in NULL. If the resulting value is outside the value set defined by float (not including positive and negative infinity) then the operator shall result in NULL.

2.11.3.31. Subtract Expression

The qti-subtract operator takes 2 sub-expressions which all have single cardinality and numerical base-types. The result is a single float or, if both sub-expressions are of integer type, a single integer that corresponds to the first value minus the second. If either of the sub-expressions is NULL then the operator results in NULL.

2.11.3.32. ContainerSize Expression

The qti-container-size operator takes a sub-expression with any base-type and either multiple or ordered cardinality. The result is an integer giving the number of values in the sub-expression, in other words, the size of the container. If the sub-expression is NULL the result is 0. This operator can be used for determining how many choices were selected in a multiple-response qti-choice-interaction, for example.

2.11.3.33. Integer to Float Expression

The qti-integer-to-float conversion operator takes a single sub-expression which must have single cardinality and base-type integer. The result is a value of base-type float with the same numeric value. If the sub-expression is NULL then the operator results in NULL.

2.11.3.34. IsNull Expression

The qti-is-null operator takes a sub-expression with any base-type and cardinality. The result is a single boolean with a value of true if the sub-expression is NULL and false otherwise. Note that empty containers and empty strings are both treated as NULL.

2.11.3.35. Not Expression

The qti-not operator takes a single sub-expression with a base-type of boolean and single cardinality. The result is a single boolean with a value obtained by the logical negation of the sub-expression's value. If the sub-expression is NULL then the qti-not operator also results in NULL.

2.11.3.36. Random Expression

The qti-random operator takes a sub-expression with a multiple or ordered container value and any base-type. The result is a single value randomly selected from the container. The result has the same base-type as the sub-expression but single cardinality. If the sub-expression is NULL then the result is also NULL.

2.11.3.37. Round Expression

The qti-round operator takes a single sub-expression which must have single cardinality and a numerical base-type. The result is a value of base-type integer formed by rounding the value of the sub-expression. The result is the integer n for all input values in the range [n-0.5,n+0.5). In other words, 6.8 and 6.5 both round up to 7, 6.49 rounds down to 6 and -6.5 rounds up to -6. If the sub-expression is NULL then the operator results in NULL. If the sub-expression is NaN, then the result is NULL. If the sub-expression is INF, then the result is INF. If the sub-expression is -INF, then the result is -INF.

2.11.3.38. Truncate Expression

The qti-truncate operator takes a single sub-expression which must have single cardinality and a numerical base-type. The result is a value of base-type integer formed by truncating the value of the sub-expression towards zero. For example, the value 6.8 becomes 6 and the value -6.8 becomes -6. If the sub-expression is NULL then the operator results in NULL. If the sub-expression is NaN, then the result is NULL. If the sub-expression is INF, then the result is INF. If the sub-expression is -INF, then the result is -INF.

2.11.3.39. Math Operator Expression

The qti-math-operator operator takes 1 or more sub-expressions which all have single cardinality and have numerical base-types. The trigonometric functions, sin, cos and tan, take one argument in radians, which evaluates to a single float. Other functions take one numerical argument. Further functions might take more than one numerical argument, e.g. atan2 (two argument arc tan). The result is a single float, except for the functions signum, floor and ceil, which return a single integer. If any of the sub-expressions is NULL, the result is NULL. If any of the sub-expressions falls outside the natural domain of the function called by qti-math-operator, e.g. log(0) or asin(2), then the result is NULL.

2.11.3.40. Sum Expression

The qti-sum operator takes 1 or more sub-expressions which all have numerical base-types and may have single, multiple or ordered cardinality. The result is a single float or, if all sub-expressions are of integer type, a single integer that corresponds to the sum of the numerical values of the sub-expressions. If any of the sub-expressions are NULL then the operator results in NULL.

2.11.3.41. Pattern Match Expression

The qti-pattern-match operator takes a sub-expression which must have single cardinality and a base-type of string. The result is a single boolean with a value of true if the sub-expression matches the regular expression given by pattern and false if it doesn't. If the sub-expression is NULL then the operator results in NULL.

2.11.3.42. Repeat Expression

The qti-repeat operator takes 0 or more sub-expressions, all of which must have either single or ordered cardinality and the same base-type. The result is an ordered container having the same base-type as its sub-expressions. The container is filled sequentially by evaluating each sub-expression in turn and adding the resulting single values to the container, iterating this process qti-number-repeats times in total. If qti-number-repeats refers to a variable whose value is less than 1, the value of the whole expression is NULL. Any sub-expressions evaluating to NULL are ignored. If all sub-expressions are NULL then the result is NULL.

2.11.3.43. RoundTo Expression

The qti-round-to operator takes one sub-expression which must have single cardinality and a numerical base-type. The result is a single float with the value nearest to that of the expression's value such that when converted to a decimal string it represents the expression rounded by the specified rounding method to the specified precision. If the sub-expression is NULL, then the result is NULL. If the sub-expression is INF, then the result is INF. If the sub-expression is -INF, then the result is -INF. If the argument is NaN, then the result is NULL.

When rounding to n significant figures, the deciding digit is the (n+1)th digit counting from the first non-zero digit from the left in the number. If the deciding digit is 5 or greater, the nth digit is increased by 1 and all digits to its right are discarded; if the deciding digit is less than 5, all digits to the right of the nth digit are discarded.

When rounding to n decimal places, the deciding digit is the (n+1)th digit counting to the right from the decimal point. If the deciding digit is 5 or greater, the nth digit is increased by 1 and all digits to its right are discarded; if the deciding digit is less than 5, all digits to the right of the nth digit are discarded.

2.11.3.44. Stats Operator Expression

The qti-stats-operator operator takes 1 sub-expression which is a container of multiple or ordered cardinality and has a numerical base-type. The result is a single float. If the sub-expression or any value contained therein is NULL, the result is NULL. If any value contained in the sub-expression is not a numerical value, then the result is NULL.

2.11.3.45. String Match Expression

The qti-string-match operator takes two sub-expressions which must have single and a base-type of string. The result is a single boolean with a value of true if the two strings match according to the comparison rules defined by the attributes below and false if they don't. If either sub-expression is NULL then the operator results in NULL.

2.11.3.46. Substring Expression

The qti-substring operator takes two sub-expressions which must both have an effective base-type of string and single cardinality. The result is a single boolean with a value of true if the first expression is a substring of the second expression and false if it isn't. If either sub-expression is NULL then the result of the operator is NULL.

2.12. Items and Test Fragments

An Item Fragment is part of an item that is managed independently of the items that depend on it. Similarly, a Test Fragment is part of a test that is managed independently of the tests that depend on it. Fragments are packaged as separate resources and can be transported independently. A fragment may appear anywhere in the model where one of the following abstract classes may appear: flowStatic, inlineStatic, blockStatic, responseRule, sectionPart or outcomeRule. For example, an item fragment may be a division of the qti-item-body represented by an instance of the 'Div' class or a single interaction

Fragments are included using the Include mechanism (the actual form of implementation is dependent on the binding approach). The instance of include is treated as if it was actually an instance of the root element of the fragment referred to by the 'href' chracteristic of the 'Include' class. For the purposes of this specification, when using an XML binding, the xpointer mechanism defined by the XInclude specification MUST NOT be used. Also, all included fragments must be treated as parsed xml.

This technique is similar to the inclusion of media objects (using object) but allows the inclusion of data that conforms to this specification, specifically, it allows the inclusion of interactions, static content, processing rules or, at test level whole sections, to be included from externally defined fragments.

When including externally defined fragments the content of the fragment must satisfy the requirements of the specification in the context of the item in which it is being included. For example, interactions included from fragments must be correctly bound to response variables declared in the items. Item and Test fragments are supported using the classes:

2.13. The Accessibility Features

2.13.1. Alternative Accessibility Content Functionality

QTI 3.0 provides a rich set of accessibility annotation capabilities. These are derived from the functionality originally defined in [APIP, 14]. There are four components to the accessibility content annotation:

The alternative content supplied to realise accessibility needs is always optional content. The alternative content can be defined for the following classes:

Examples of how to use these alternative content features are given in the QTI Implementation Guide document [QTI-BPIG-30].

2.13.2. Support for Speech Synthesis Markup Language

The Speech Synthesis Markup Language Specification is designed to provide a rich, XML-based markup language for assisting the generation of synthetic speech in Web and other applications. The essential role of the markup language is to provide authors of synthesizable content a standard way to control aspects of speech such as pronunciation, volume, pitch, rate, etc. across different synthesis-capable platforms.

SSML functionality is provided through the SSMLGroup class that is imported. The SSML tags that are supported are 'p', 's', 'say-as', 'phoneme', 'sub', 'voice', 'emphasis', 'break', 'prosody' 'mark', 'audio' and 'speak'. SSML anotations are supplied through the following classes:

Further information on SSMLv1.1 is available in [SSML, 10]. An example of how to use SSML is given in the QTI Implementation Guide document [QTI-BPIG-30].

2.13.3. Support for WAI-ARIA

The Accessible Rich Internet Applications (ARIA) specification from W3C [ARIA, 14], [WAI-ARIA, 17], [WAI-ARIA, 21] provides an ontology of roles, states, and properties that define accessible user interface elements and can be used to improve the accessibility and interoperability of web content and applications. These semantics are designed to allow an author to properly convey user interface behaviors and structural information to assistive technologies in document-level markup. In QTI the ARIA characteristics are used on the following classes:

These classes are used to define the HTML and the QTI Interactions. The subset of the possible set of ARIA features that are supported in QTI is:

Further information on WAI-ARIA 1.0, 1.1 and 1.2 is available in [ARIA, 14], [WAI-ARIA, 17], [WAI-ARIA, 21] respectively. An example of how to use ARIA is given in the QTI Best Practices document [QTI-BPIG-30].

2.14. The Internationalization Features

2.14.1. Support for Bidirectional Text

For different languages the text is presented and read either from 'left-to-right' or 'right-to-left'. The corresponding rendering must take into account word and character spacing and justification. The classes that enable the bi-directional text layout support are:

2.14.2. Support for Ruby

Ruby allows one or more spans of phrasing content to be marked with ruby annotations. Ruby annotations are short runs of text presented alongside base text, primarily used in East Asian typography as a guide for pronunciation or to include other annotations. In Japanese, this form of typography is also known as furigana. Ruby text can appear on either side, and sometimes both sides, of the base text, and it is possible to control its position using CSS. A more complete introduction to ruby can be found in the Use Cases and Exploratory Approaches for Ruby Markup document as well as in CSS Ruby Module Level 1. [RUBYUC, 13] [CSSRUBY, 15]. The classes that enable the Ruby support are:

2.14.3. Support for Alternative Languages

There are explicit methods for indicating multiple or alternative languages for content. For alternate language variants, there are two major implementations of delivery when using the variants. In the first use case, delivery systems determine the preferred language (variant) of the candidate, then present only the requested variant content during the assessment session. In the second use case, the delivery system presents the variant requested, as well as the original language variant of the item, and allows the candidate to switch back and forth between the two language variants during the assessment session.

A QTI Package is used to establish the link between the original Item and variants (including those that for the alternative language. See the QTI implementation Guide [QTI-BPIG-30] for more details on the use of variants to support Items with alternative languages.

Date Issued:	1st May 2022
Latest version:	http://www.imsglobal.org/activity/qti/

2. Key Data Model Features	The detailed descriptions of the core features used within QTI. This includes the composition of an Item and Test and the use of Sections as a grouping consruct, the HTML-based content model, the response and outcome processing and the various feedback mechanisms, and the accessibility features;
3. Root Attribute Descriptions	The formal definition and description of the set of root attributes for the information model. These are the first class objects that can be exchanged using this data model. QTI ASI has six root attributes;
4. Root Class Descriptions	The definition and description of the set of root classes for the information model. These are parent classes for the the first class objects i.e. the root attributes, that can be exchanged using this data model;
5. Data Class Descriptions	The definition and description of the set of core classes from which the information model is composed;
6. Abstract Class Descriptions	The definition and description set of abstract classes used within the information model. These are classes that will never be used to create a direct object. Instead the abstraction is used to define complex structured classes which would otherwise be impossible to create it such a concise way;
7. Derived Class Descriptions	The definition and description of the set of derived classes. A derived class is one that is built upon either the primitive types (the base types avialable for any model) or other derived types;
8. Enumerated Vocabulary Descriptions	The definition and description of the set of enumerated classes i.e. the embedded vocabularies, used throughout the specification (these vocabularies are not encapsulated as external IMS-based VDEX files);
9. Miscellaneous Descriptions	The definition and description of the other types of classes used within the specification. This includes the classes for lists, enumerated lists, unions and constructs that are imported from other specifications;
10. Extending and Profiling the Data Model	Identification of the ways in which the data model can be extended (both in terms of the extending features and proprietary extensions to the model) and how this base specification, and its model-based description, can be profiled to produce derivative specifications;
References	The set of cited documents, normative and informative, that are used to support the technical details in this document;
Appendix A Modelling Concepts and Terms	An overview of the model driven approach, the concepts and the terms used by IMS to create the data model representations (based upon a profile of UML), the corresponding set of bindings and the accompanying documentation (including this information model).

APIP	Accessible Portable Item Protocol
ARIA	Accessible Rich Internet Applications
ASI	Assessment, Section and Item
Adaptive Item	An adaptive item is an Item that adapts either its appearance, its scoring (Response Processing) or both in response to each of the candidate's Attempts. For example, an adaptive item may start by prompting the candidate with a box for free-text entry but, on receiving an unsatisfactory answer, present a simple choice Interaction instead and award fewer marks for subsequently identifying the correct response. Adaptivity allows authors to create items for use in formative situations which both help to guide candidates through a given task while also providing an Outcome that takes into consideration their path, enabling better subsequent content sequencing decisions to be made.
Adaptive Test	An Adaptive Test is a Test that varies the items presented to the candidate based on the responses given on items already completed. This specification supports adaptivity through the use of pre-conditions and branching (see Pre-conditions and Branching). In QTI 3.0 support for adaptivity using the IMS Computer Adaptive Testing specification approach was added (see the sub-section 'Adaptive Sequencing using IMS CAT').
Assessment	Assessment is the process of measuring some aspect of a candidate. In the context of this specification Assessment is carried out using Tests and the term Assessment is treated as being equivalent to an Assessment Test.
Assessment Delivery System	A system for the administration and delivery of assessments to candidates. See also Delivery Engine.
Assessment Test	An Assessment Test is an organized collection of Items that are used to determine the values of the outcomes e.g. level of mastery, when measuring the performance of a candidate in a particular domain. An Assessment Test contains all of the necessary instructions to enable the sequencing of the items and the calculation of the outcome values e.g. the final test score.
Assessment Variable	An Assessment Variable is a variable used to maintain a value associated with an Item Session or Test Session. For example, the value of a Response given by the candidate or the value of an Outcome for an individual item or an entire test.
Attempt	An attempt (at an Item) is the process by which the Candidate interacts with an item in one or more Candidate Sessions, possibly assigning values to or updating the associated Response Variables.
Authoring System	A system used by authors for creating and editing Items and Assessments.
BIDI	Bidirectional Unicode
Base-type	A base-type is a predefined data type that defines a value set from which values for Item Variables are drawn. These values are indivisible with respect to the runtime model described by this specification.
Basic Item	A basic item is an Item that contains one and only one Interaction.
Bi-directional Text	This provides control for the layout of text so that it can be read from 'left-to-right' or 'right-to-left'.
CAT	Computer Adaptive Testing
CP	Content Packaging
CSS	Cascading Stylesheet
Candidate	A person that participates in a test, assessment or exam by answering questions. See also the actor candidate.
Candidate Session	A period of time during which the candidate is interacting with the Item as part of an Attempt. An attempt may consist of more than one candidate session. For example, candidates that are not sure of the answer to one question may navigate to a second question in the same test and return to the first one later. When they leave the first question they terminate the candidate session but they do not terminate the Attempt. The attempt is simply suspended until a subsequent candidate session concludes it, triggering Response Processing and (possibly) Feedback.
Cloning Engine	A cloning engine is a system for creating multiple similar items (Item Clones) from an Item Template.
Composite Item	A composite item is an Item that contains more than one Interaction.
Container	A container is an aggregate data type that can contain multiple values of the primitive Base-types. Containers may be empty.
DT	Derived Type
Delivery Engine	The process that coordinates the rendering and delivery of the Item(s) and the evaluation of the responses to produce scores and Feedback.
Feedback	Any material presented to the candidate conditionally based on the value of an Outcome Variable. See also Integrated Feedback, Modal Feedback and Test Feedback.
HTML	Hypertext Markup Language
IEEE	Institute of Electrical and Electronics Engineers
IETF	Internet Engineering Task Force.
ISO	International Standards Organization
Integrated Feedback	Integrated feedback is the name given to Feedback that is integrated into the item's itemBody. Unlike Modal Feedback the candidate is free to update their responses while viewing integrated feedback.
Interaction	Interactions allow the candidate to interact with the item. Through an interaction, the candidate selects or constructs a response.
Item	The smallest exchangeable assessment object within this specification. An item is more than a 'Question' in that it contains the question and instructions to be presented, the responseProcessing to be applied to the candidates response(s) and the Feedback that may be presented (including hints and solutions). In this specification items are represented by the assessmentItem class and the term assessment item is used interchangeably for item.
Item Clone	Item Clones are items created by an Item Template.
Item Fragment	An Item Fragment is part of an item managed independently of items that include it. See also Item Set.
Item Session	An item session is the accumulation of all the Attempts at a particular item made by a candidate.
Item Set	An Item Set is a set of items that share some common characteristic. For example, all items in the set may be introduced by the same Item Fragment, in which case the fragment is often referred to as the set leader.
Item Template	Item templates are templates that can be used for producing large numbers of similar Items. Such items are often called cloned items. Item templates can be used to produce items by a special purpose Cloning Engine or, where Delivery Engines support them, be used directly to produce a dynamically chosen clone at the start of an Item Session. Each item cloned from an item template is identical except for the values given to a set of Template Variables. An item is therefore an item template if it declares one or more template variables and contains a set of Template Processing rules for assigning them values.
Item Variable	A variable that records part of the state of an Item Session. The candidate's responses and any outcomes assigned by Response Processing are stored in item variables. Item variables are also used to define Item Templates. Item variables are a special kind of Assessment Variable.
Material	Material means all static text, image or media objects that are intended for the user rather than being interpreted by a processing system. Interactions are not material.
Modal Feedback	Modal feedback is the name give to Feedback that is presented to the candidate on its own, as opposed to being integrated into the item's itemBody.
Multiple Response	A multiple response is a Response Variable that is a Container for multiple values all drawn from the value set defined by one of the Base-types. A multiple response is processed as an unordered list of these values. The list may be empty.
Non-adaptive Item	An non-adaptive item is an Item that does not adapt itself in response to the candidate's Attempts.
Object Bank	An object bank is a collection of objects used in assessment, including Items, Item Fragments, Tests or parts of tests. Object banks are not represented directly in this information model. See the QTI ASI Binding [QTI-BIND-30] for information about how to package assessment objects for interchange.
Ordered Response	An ordered response is a Response Variable that is a Container for multiple values all drawn from the value set defined by one of the Base-types. An ordered response is processed as an ordered list (sequence) of values. The list may be empty.
Outcome	The result of an Assessment Test or Item. An outcome is represented by one or more Outcome Variables.
Outcome Processing	The process by which the values of item Outcomes (or Responses) are aggregated to make test outcomes.
Outcome Variable	Outcome variables are declared by outcome declarations. Their value is set either from a default given in the declaration itself or by a response rule encountered during Response Processing (for Item outcomes) or Outcome Processing (for Test outcomes). See also the class outcomeDeclaration.
PCI	Portable Custom Interaction (see definition).
PT	Primitive Type
Pool	A group of related items transported together with metadata that describes the group as a whole. A pool is a special case of an Object Bank.
Portable Custom Interaction	This is the recommended mechanism for describing new QTI interactions to be used within QTI. PCI defines how the custom interaction functionality within QTI is extended by the use of a JavaScript API.
QTI	Question and Test Interoperability
RFC	Request For Comment
Response	The data provided by the candidate through interaction with an item, or part of an item. The values of candidate responses are represented by Response Variables.
Response Processing	The process by which the values of Response Variables are judged (scored) and the values of item Outcomes are assigned.
Response Variable	Response variables are declared by response declarations and bound to Interactions in the Item body, they record the candidate's responses. See also the class responseDeclaration
Ruby	Ruby allows one or more spans of phrasing content to be marked with ruby annotations. Ruby annotations are short runs of text presented alongside base text, primarily used in East Asian typography as a guide for pronunciation or to include other annotations. In Japanese, this form of typography is also known as furigana.
SSML	Speech Synthsis Markup Language
Scoring Engine	The part of the assessment system that handles the scoring based on the Candidate's responses and the Response Processing rules.
Single Response	A single response is a Response Variable that can take a single value from the set of values defined by one of the Base-types.
Template Processing	A set of rules used to set the values of the Template Variables, typically involving some random process, and thereby select the specific clone to be used for an Item Session.
Template Variable	Template variables are declared by template declarations and used to record the values required to instantiate an item template. The values determine which clone from the set of similar items defined by an Item Template is being used for a given Item Session.
Test	See Assessment.
Test Feedback	The name given to feedback that is presented to the candidate conditionally based on the value of test Outcomes.
Test Fragment	A Test Fragment is part of a test managed independently of the tests that include it.
Test Report	A Test Report is a report about a Test Session.
Test Session	A Test Session is the interaction of a candidate with a Test and the items it contains.
Time Dependent Item	A time dependent item is an Item that records the accumulated elapsed time for the Candidate Sessions in a Response Variable that is used during Response Processing.
Time Independent Item	A time independent item is an Item that does not use the accumulated elapsed time during Response Processing. In practice, this information may be collected by a Delivery Engine and may still be reported as part of a Test Report.
UML	Unified Modeling Language
URI	Uniform Resource Identifier
URL	Uniform Resource Locator
VDEX	Vocabulary Definition and Exchange
W3C	World Wide Web Consortium
XML	Extensible Markup Language
XSD	XML Schema Definition

Descriptor	Definition
Class Name	AssessmentItem
Class Type	Container [ Sequence ]
Parents	None (Root Class)
Derived Classes	There are no derived classes.
Super Classes	This class is not derived from another class.
Characteristics	The set of characteristics are: identifier title label language tool-name tool-version adaptive time-dependent dataExtension
Children	The set of children attributes are: qti-context-declaration qti-response-declaration qti-outcome-declaration qti-template-declaration qti-template-processing qti-assessment-stimulus-ref qti-companion-materials-info qti-stylesheet qti-item-body qti-catalog-info qti-response-processing qti-modal-feedback
Description	An assessment item encompasses the information that is presented to a candidate and information about how to score the item. Scoring takes place when candidate responses are transformed into outcomes by response processing rules. It is sometimes desirable to have several different items that appear the same to the candidate but which are scored differently. In this specification, these are distinct items by definition and must therefore have distinct identifiers. To help facilitate the exchange of items that share significant parts of their presentation this specification supports the inclusion of separately managed item fragments (see Item and Test Fragments) in the qti-item-body.

Descriptor	Definition
Characteristic Name	identifier
Data Type	Identifier
Value Space	Container [ DerivedType ]
Scope	Local ("-")
Multiplicity	[1]
Description	The principle identifier of the item. If an identifier is assigned in the corresponding item's resource metadata (see QTI Metadata [QTI-MD-BIND-30] for more information) then the two MUST be the same. When an Item is referenced using a 'qti-assesasment-item-ref' the values of the two 'identifier' characteristics MUST be the same. The identifier is a string of characters that must start with a Letter or an underscore ('_') and contain only Letters, underscores, hyphens ('-'), period ('.', a.k.a. full-stop), Digits, CombiningChars and Extenders. Identifiers containing the period character are reserved for use in prefixing, as described in the definition of variable. The character classes Letter, Digit, CombiningChar and Extender are defined in the Extensible Markup Language (XML) 1.0 (Second Edition) [XML, 00]. Note particularly that identifiers may not contain the colon (':') character. Identifiers should have no more than 32 characters for compatibility with version 1. They are always compared case-sensitively.

Descriptor	Definition
Attribute Name	qti-assessment-item
Data Type	AssessmentItem
Description	This is the root element for the exchange of items. The qti-assessment-item may reference any required content stimuli contained within a qti-assessment-stimulus. The exchange of a single qti-assessment-item instance is permitted.

Descriptor	Definition
Attribute Name	qti-assessment-section
Data Type	AssessmentSection
Description	This is the root element for the exchange of sections. A qti-assessment-section can contain any order and hierarchy of contained/referenced qti-assessment-sections and referenced qti-assessment-items. The qti-assessment-items can only be referenced from within a qti-assessment-section i.e. they cannot be contained in the same instance as the qti-assessment-section. The exchange of a single root qti-assessment-section instance is permitted but any number of contained qti-assessment-sections can also be exchanged.

Descriptor	Definition
Attribute Name	qti-assessment-stimulus
Data Type	AssessmentStimulus
Description	This is the root element for the exchange of stimuli i.e. content that is to be shared and referenced by multiple items. This allows the stimulus content to be managed as a separate first class object. The exchange of a single qti-assessment-stimulus instance is permitted.

Descriptor	Definition
Attribute Name	qti-assessment-test
Data Type	AssessmentTest
Description	This is the root element for the exchange of tests, quizzes, etc. The test must contain at least one test part which in turn must contain, or reference, at least one qti-assessment-section. The associated qti-assessment-items can only be referenced from within a qti-assessment-section and cannot be contained in the same instance as the qti-assessment-test. The exchange of a single qti-assessment-test instance is permitted.

Descriptor	Definition
Attribute Name	qti-outcome-declaration
Data Type	OutcomeDeclaration
Description	This is the root element for the declaration of set an outcome variable either as within a qti-assessment-item or as separate resource in a QTI content package. The ability to define outcome variables as top level objects is to enable the allocation of curriculum standards metadata (including CASE competency identifiers) to an outcome variable via the QTI content package.

Descriptor	Definition
Attribute Name	qti-response-processing
Data Type	ResponseProcessing
Description	This root element is used to enable the definition of response processing templates either as within a qti-assessment-item or as separate resource in a QTI content package. These templates can then be used to define common response processing patterns to be used by Items.

Descriptor	Definition
Characteristic Name	title
Data Type	NormalizedString (Primitive-type)
Value Space	See Appendix A1.3.
Scope	Local ("-")
Multiplicity	[1]
Description	The title of a qti-assessment-item is intended to enable the item to be selected in situations where the full text of the qti-item-body is not available, for example when a candidate is browsing a set of items to determine the order in which to attempt them. Therefore, delivery engines may reveal the title to candidates at any time but are not required to do so. Note that if the accompanying packaging metadata for this resource includes the title then these two MUST be the same (see QTI Metadata [QTI-MD-BIND-30] for more information).

Descriptor	Definition
Characteristic Name	label
Data Type	NormalizedString (Primitive-type)
Value Space	See Appendix A1.3.
Scope	Local ("-")
Multiplicity	[0..1]
Description	A human readable label that can be used to describe the Item.

Descriptor	Definition
Characteristic Name	language
Data Type	Language (Primitive-type)
Value Space	See Appendix A1.3.
Scope	Local ("-")
Multiplicity	[0..1]
Description	The default language for the Item. Natural language identifiers as defined by [BCP 47].

Descriptor	Definition
Characteristic Name	tool-name
Data Type	NormalizedString (Primitive-type)
Value Space	See Appendix A1.3.
Scope	Local ("-")
Multiplicity	[0..1]
Description	The tool name characteristic allows the tool creating the item to identify itself. Other processing systems may use this information to interpret the content of application specific data, such as labels on the elements of the item's qti-item-body.

Descriptor	Definition
Characteristic Name	tool-version
Data Type	NormalizedString (Primitive-type)
Value Space	See Appendix A1.3.
Scope	Local ("-")
Multiplicity	[0..1]
Description	The tool version characteristic allows the tool creating the item to identify its version. This value must only be interpreted in the context of the tool-name.

Descriptor	Definition
Characteristic Name	adaptive
Data Type	Boolean (Primitive-type)
Value Space	See Appendix A1.3. Default = "false".
Scope	Local ("-")
Multiplicity	[0..1]
Description	Denotes the adaptive nature of the Item. Items are classified as either Adaptive or Non-adaptive. The value for this characteristic MAY change how outcome variables are handled.

Descriptor	Definition
Characteristic Name	time-dependent
Data Type	Boolean (Primitive-type)
Value Space	See Appendix A1.3.
Scope	Local ("-")
Multiplicity	[1]
Description	Denotes if the Item must be answered within some defined time limit.

Descriptor	Definition
Characteristic Name	dataExtension
Data Type	DataHTML5Extension
Value Space	Container [ DerivedType ]
Scope	Global ("+")
Multiplicity	[0.. unbounded]
Description	This is the HTML5 extension characteristic. A custom data characteristic is a characteristic in no namespace whose name starts with the string 'data-', has at least one character after the hyphen, is XML-compatible, and contains no uppercase ASCII letters.

Descriptor	Definition
Attribute Name	qti-context-declaration
Data Type	ContextDeclaration
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0.. unbounded]
Description	This allows globally scoped varables to be defined. These variable can be used within template processing, response processing and outcomes processing. An implementation MUST support the global variable "QTI_CONTEXT" with record cardinality and this record MUST have predefined fields 'candidateIdentifier', 'testIdentifier' and 'environmentIdentifier'. The built-in QTI_CONTEXT variable must be fully resolved prior to any further processing.

Descriptor	Definition
Attribute Name	qti-response-declaration
Data Type	ResponseDeclaration
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0.. unbounded]
Description	This is the set of response variable declarations that are associated with the Item. Response variables are only relevant within the context of the parent Item (Subsection 2.11.2 explains how this context is achieved if this variable is referenced external to the Item).

Descriptor	Definition
Attribute Name	qti-template-declaration
Data Type	TemplateDeclaration
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0.. unbounded]
Description	This is the set of template variable declarations that are associated with the Item. Template variables are only relevant within the parent Item and so every declared variable must be referenced in the corresponding template processing.

Descriptor	Definition
Attribute Name	qti-template-processing
Data Type	TemplateProcessing
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0..1]
Description	The template processing rules that are used for this Item. These rules are embedded within the ItemBody.

Descriptor	Definition
Attribute Name	qti-assessment-stimulus-ref
Data Type	AssessmentStimulusRef
Value Space	Container [ DerivedType ]
Scope	Local ("-")
Multiplicity	[0.. unbounded]
Description	The set of identifier references to the stimulus content that should be associated with the Item. Each identifier must resolve to some AssessmentStimulus object that has been associated with the Item.

Descriptor	Definition
Attribute Name	qti-companion-materials-info
Data Type	CompanionMaterialsInfo
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0..1]
Description	This identifies the set of companion materials that should be used when answering the questions presented during the assessment. A number of different types of materials can be required in various combinations.

IMS Question and Test Interoperability (QTI): Assessment, Section and Item Information Model Version 3.0

IMS Final ReleaseVersion 1.0

IMS Final Release
Version 1.0

Descriptor	Definition
Attribute Name	qti-stylesheet
Data Type	StyleSheet
Value Space	Container [ DerivedType ]
Scope	Local ("-")
Multiplicity	[0.. unbounded]
Description	The set of external style sheets that are associated with the Item. The order of definition is significant.

Descriptor	Definition
Attribute Name	qti-item-body
Data Type	ItemBody
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0..1]
Description	The item body for the Item. The qti-item-body contains the text, graphics, media objects and interactions that describe the item's content and information about how it is structured.

Descriptor	Definition
Attribute Name	qti-catalog-info
Data Type	CatalogInfo
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0..1]
Description	This is the alternative accessibility content that is defined to enable the range of supported accessibility options to reconfigure the assessment content. This content augments the original content that is defined for the associated QTI feature.

Descriptor	Definition
Attribute Name	qti-modal-feedback
Data Type	ModalFeedback
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0.. unbounded]
Description	The Modal feedback that is to be shown to the candidate directly following response processing.

Descriptor	Definition
Characteristic Name	required
Data Type	Boolean (Primitive-type)
Value Space	See Appendix A1.3. Default = "false".
Scope	Local ("-")
Multiplicity	[0..1]
Description	If a child element is required it must appear (at least once) in the selection. It is an error if a section contains a selection rule that selects fewer child elements than the number of required elements it contains.

Descriptor	Definition
Characteristic Name	fixed
Data Type	Boolean (Primitive-type)
Value Space	See Appendix A1.3. Default = "false".
Scope	Local ("-")
Multiplicity	[0..1]
Description	If a child element is fixed it must never be shuffled. When used in combination with a selection rule fixed elements do not have their position fixed until after selection has taken place. For example, selecting 3 elements from {A,B,C,D} without replacement might result in the selection {A,B,C}. If the section is subject to shuffling but B is fixed then permutations such as {A,C,B} are not allowed whereas permutations like {C,B,A} are.

Descriptor	Definition
Characteristic Name	class
Data Type	StringList
Value Space	The list consist of values of data-type(s): String (Primitive-type)
Scope	Local ("-")
Multiplicity	[0..1]
Description	If specified, this has a value that is a set of space-separated tokens representing the various classes to which the element belongs.

Descriptor	Definition
Characteristic Name	visible
Data Type	Boolean (Primitive-type)
Value Space	See Appendix A1.3.
Scope	Local ("-")
Multiplicity	[1]
Description	A visible section is one that is identifiable by the candidate. For example, delivery engines might provide a hierarchical view of the test to aid navigation. In such a view, a visible section would be a visible node in the hierarchy. Conversely, an invisible section is one that is not visible to the candidate - the child elements of an invisible section appear to the candidate as if they were part of the parent section (or testPart). The visibility of a section does not affect the visibility of its child elements. The visibility of each section is determined solely by the value of its own visible attribute.

Descriptor	Definition
Characteristic Name	keep-together
Data Type	Boolean (Primitive-type)
Value Space	See Appendix A1.3. Default = "true".
Scope	Local ("-")
Multiplicity	[0..1]
Description	An invisible section with a parent that is subject to shuffling can specify whether or not its children, which will appear to the candidate as if they were part of the parent, are shuffled as a block or mixed up with the other children of the parent section.

Descriptor	Definition
Attribute Name	qti-pre-condition
Data Type	LogicSingle
Value Space	Container [ Sequence ]
Scope	Local ("-")
Multiplicity	[0.. unbounded]
Description	An optional set of conditions evaluated during the test, that determine if the item or section is to be skipped (in nonlinear mode, pre-conditions are ignored). The order of the conditions is significant.