PowerDesigner can use variables in the generation and reverse-engineering of extended objects.
| Variable | Comment | 
|---|---|
| %EXTENDEDOBJECT% | Generated code for extended object | 
| %EXTENDEDSUBOBJECT% | Generated code for extended sub-object | 
| %EXTSUBOBJTPARENT% | Generated code for parent of extended sub-object | 
| %EXTSUBOBJTPARENTOWNER% | Generated code for owner of extended sub-object | 
| %EXTSUBOBJTPARENTQUALIFIER% | Parent object qualifier (database prefix and owner prefix) | 
| %EXTOBJECTDEFN% | Complete body of the extended object definition. Contains definition of extended collection listed in DefinitionContent DBMS item. |