Maximum cardinality refers to ________.
A)the most instances of one entity class that can be involved in a relationship instance with another entity class
B)the minimum number of entity classes involved in a relationship
C)whether or not an instance of one entity class is required to be related to an instance of another entity class
D)whether or not an entity is a weak entity
E)None of the above.

Question

Quizplus · Accepted Answer

Maximum cardinality refers to the maximum number of instances of one entity class that can be involved in a relationship instance with another entity class. It is denoted by the maximum value in the relationship symbol. For example, in a "one-to-many" relationship between a department entity and an employee entity, the maximum cardinality of the department entity is "one", which means that each department can have many employees, but each employee can belong to only one department.

Maximum Cardinality Refers to ________