What is the standard cardinality pattern for a relationship between an event and an agent?
A)1:1.
B)0:1.
C)0:N.
D)1:N.

Question

Quizplus · Accepted Answer

An event can involve multiple agents, hence the cardinality pattern would be 1:N. On the other hand, an agent can be involved in multiple events too, so it cannot be 0:1. The option of 0:N is also possible, but since an event should have at least one agent involved, the minimum cardinality is set to 1. Therefore, the standard cardinality pattern for a relationship between an event and an agent is 1:N.

What Is the Standard Cardinality Pattern for a Relationship Between