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Subject: [OASIS Issue Tracker] (ODATA-1062) Add UML model for OData Metamodel

George Ericson created ODATA-1062:

             Summary: Add UML model for OData Metamodel 
                 Key: ODATA-1062
                 URL: https://issues.oasis-open.org/browse/ODATA-1062
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: New Feature
          Components: CSDL JSON , CSDL XML, Implementing OData, New in OData, Vocabularies
            Reporter: George Ericson

Various aspects of OData seem unclear or redundant.  A formal UML model for the OData metamodel can be used to clarify and simplify OData.   This proposal is  preliminary and needs review and refinement.  It is expressed in CSDL XML.  (See https://www.oasis-open.org/apps/org/workgroup/odata/download.php/60420/OdataMetamodel.xml.)   UML diagrams are provided that illustrate this proposal.  (See: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/60421/OdataMetamodel.pdf)

An advantage of the UML model is that it expresses the Odata metamodel in precise terms.  Constraints and requirements on the various elements of the model are expressed normatively using the UML model together with UML Object Constraing Language (OCL) statements.

The various schema definition languages CSDL XML, CSDL JSON, and others should conform to the OData metamodel.

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