Question

In UML notation, the includes relationship connects two use cases. The use case that is "included" use case is the one which _______.

1) is connected to the tail of an arrow
2) is connected to the head of an arrow
3) cannot be determined
4) is not connected to an actor

Answer 1

In UML notation, the 'included' use case in an includes relationship is the one connected to the head of an arrow. This indicates that the included use case is a necessary part of the base use case it is connected to.

Step-by-step explanation:

In UML notation, the includes relationship connects two use cases. The use case that is included—referred to as the "included" use case—is the one which is connected to the head of an arrow. This shows that the included use case is invoked by the base use case. The base use case represents functionality or a set of actions that are always performed, while the included use case represents a set of actions that can be reused across different scenarios or use cases. The directional arrow points towards the included use case, indicating that it is a required part of the base use case's process.