A(n)_____ is a generic entity type that is related to one or more entity subtypes.
A) subtype discriminator
B) inheritance
C) specialization hierarchy
D) entity supertype

Question

Quizplus · Accepted Answer

An entity supertype is a generic entity type that is related to one or more entity subtypes. It defines the common characteristics that are shared by all of its subtypes. The subtypes have additional attributes or characteristics that are unique to them. This is an example of inheritance and specialization hierarchy in the entity-relationship model. The process of grouping entity subtypes into entity supertypes is called generalization.

A(n)_____ Is a Generic Entity Type That Is Related to One