The __________ of a relationship is 0 if there is no explicit need for the relationship to occur or the relationship is optional.
A)modality
B)cardinality
C)entity
D)structured analysis

Question

Quizplus · Accepted Answer

Modality refers to the necessity of a relationship in a data model. A modality of 0 indicates that the relationship is optional, meaning there is no explicit requirement for the relationship to occur.

The __________ of a Relationship Is 0 If There Is