PowerDesigner and ERwin use different terms to describe certain model objects.
The import process converts general model objects as follows:
|
ERwin |
PowerDesigner |
|---|---|
|
Model |
Model |
|
Stored display and subject area |
Diagram |
|
Business rule |
Business rule |
|
Domain |
Domain |
|
Symbols ( including symbol size and position) |
Symbols ( including symbol size and position) |
|
Description |
Description |
|
Notes |
Annotation |
|
Text block |
Text symbol |
|
IE notation |
Entity/Relationship notation |
|
IDEF1X notation |
IDEF1X notation |
|
User-defined properties |
Imported as extended attributes stored in an extended model definition called Imported Attributes and embedded in the model. For information about working with extension files, see Chapter 1, Resource Files and the Public Metamodel in Customizing and Extending PowerDesigner . |
The import process converts ERwin logical model objects into conceptual data model (CDM) objects as follows:
|
ERwin logical model |
PowerDesigner CDM |
|---|---|
|
Attribute |
Data item, entity attribute |
|
Key group |
Identifier |
|
Entity |
Entity |
|
Relationship |
Relationship |
|
Subtype relationship |
Inheritance link |
|
Subtype category |
Inheritance |
The import process translates ERwin physical model objects into physical data model (PDM) objects as follows: