Question

basic notions that ER data model employes​

Answer 1

Answer:

The E-R data model employs three basic notions: entity sets, relationship sets, and attributes. An entity is a “thing” or “object” in the real world that is distinguishable from all other objects. For example, each person in an enterprise is an entity.

Answer 2

Answer:

The E-R data model employs three basic notions: entity sets, relationship sets, and attributes. An entity is a “thing” or “object” in the real world that is distinguishable from all other objects. For example, each person in an enterprise is an entity.