An entity-relationship diagram (E-R)is useful because it shows the various entities being modeled and the important relationships among them.Anything about which the organization wants to collect and store information is called
A)a data model.
B)an entity.
C)a schema.
D)a tuple.

Question

Quizplus · Accepted Answer

An entity is anything about which the organization wants to collect and store information. A data model is a way of representing entities and their relationships, and an E-R diagram is one type of data model. A schema is a way of organizing and defining the structure of a database. A tuple is a set of attribute values that describes an instance of an entity in a database.

An Entity-Relationship Diagram (E-R)is Useful Because It Shows the Various