The following series of diagrams illustrate some of the key portions of CA ERwin DM’s metamodel. These diagrams are provided as a visual counterpart to the textual descriptions of the metadata.
The diagrams are presented in pairs, one using UML notation and the other using IDEF1X notation. The UML notation presents a raw view of the metamodel; the IDEF1X notation presents the view exposed using the ODBC interface.
Note: Some of these diagrams include abstract object types. Although the definitions of these object types exist in CA ERwin DM’s metamodel (termed 'M1'), no instances of them exist within any data model (termed 'M0'). Because of this, these object types are unavailable for M0 queries using the ODBC interface. These object types are colored light blue in the following diagrams.
Some of the IDEF1X diagrams show vector properties (properties with more than one value). These are shown as tables colored orange. Consult the CA ERwin Data Modeler ODBC Reporting Guide for more information on the transformations between the raw metamodel view and the ODBC metamodel view.
This section contains the following topics:
Model and Subject Area Diagram
Entity, Attribute, and Key_Group Diagram
Entity, Attribute, Key_Group, and Relationship Diagram
Attribute, Domain, Default, and Validation Rule Diagram
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