The minimum cardinality from the Take Order event to the Call on Customer event is _____ and the maximum cardinality is _____.
A)0;0
B)0;1
C)1;0
D)1;1

Question

Quizplus · Accepted Answer

The minimum cardinality from the Take Order event to the Call on Customer event is 0 because it is possible for a customer to place an order without requiring a call back. The maximum cardinality is 1 because if a customer requests a call back, there can only be one call made to the customer for that order. Therefore, the best choice is B.

The Minimum Cardinality from the Take Order Event to the Call