I want to make polymorphism between 4 Entities in Sybase PowerDesigner tool, but there is no explanation how to do this in conceptual data model.
Can you help me with this?
I think that term "polymorphism" is applicable to Object Oriented Model but not to Conceptual Data Model.
If you want to describe 4 entities with the same behavior you should generate OOM model from CDM model or use inheritance in CDM. But "inheritance" is not the same as "polymorphism".