24 October 2002 Restructured the schemas that were submitted as public draft. Defined groups for those content models that need to be extended in level C. Nearly all attributes for the level B elements are declared inline, because they are not re-used in other elements. Changed the namespace. Include the email-data element. Include the expression schema. Add properties into the content model of components, after roles. Add when-condition-ture and when-property-value-is-set into the choice group of complete-act. Add when-property-value-is-set into the choice group of complete-activity. Add when-property-value-is-set into the choice group of complete-play. Add when-property-value-is-set into the choice group of complete-unit-of-learning. Add change-property-value to on-completion. Add conditions to method. Add monitor into the choice group of service. Add the attribute property-ref to "simple type" time-limit. The element property-value should contain either text, or langstring, or calculate, or property-ref.