What Are The Main Reasons For Introducing The Concepts Of Superclasses And Subclasses Into An ER Model?
What Are The Main Reasons For Introducing The Concepts Of Superclasses And Subclasses Into An ER Model? Question: There are several reasons for introducing superclass and subclasses into an ER model. First, incorporating a superclass and subclasses maintains the cleanliness of the structure and improves the conceptual flow. Second, it adds familiar semantic information to