This section includes diagrams that illustrate some of the key portions of the 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 the diagrams include abstract object types. Abstract object types are colored light blue in the diagrams. Although the definitions of these object types exist in the metamodel (termed 'M1'), no instances of them exist within any data model (termed 'M0'). Because no instances exist in any data model, abstract object types are unavailable for M0 queries using the ODBC interface.
Some of the IDEF1X diagrams show vector properties (properties with more than one value). Vector properties are shown as tables colored orange. For more information about the transformations between the raw metamodel view and the ODBC metamodel view, see the erwin® Data Modeler ODBC Reporting Guide.
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
|
Copyright © 2017 erwin Inc.
All rights reserved.
|
|