EAI — Issues with XML Message Elements

Document: UML Profile and Interchange Models for EAI
Section: 6.3.4 (EAIMessageContent)

Description:
Is the intent here to actually change the OMG "XMI Production of XML Schema" specification? Because the generalizations shown in Figure 6-12 do actually change the specification of elements from the XML schema model.

And, in any case, why are XMLMessageElements described in Section 6.3.4, rather than in Chapter 7, on the Common Application Metamodel?

Recommendation:
Introduce a simple model in the CAM that has new classes for TDLangXSDType, TDLangXSDComplexType and TDLangXSDElementType that multiply inherit from the XML schema and TDLang classes. (Some further study is required of the XML schema model to confirm that this approach will actually work.)

see below