SOFTWARE ENGINEERING

Detailed explanation-1: -Explanation: Generalization, include, extend all of these are valid relationships in use case diagrams.

Detailed explanation-2: -The use case diagram displays three kinds of entities: the system, the actors, and the use cases. The system is represented by a box encompassing the use cases. The actors are users or systems that interact with the main system and are represented by figures.

Detailed explanation-3: -Which statements are TRUE for use case relationships? An include relationship means that a use case includes the behavior described in another use case. An extend relationship implies that a use case may extend the behavior described in another use case.

Detailed explanation-4: -Actors: The users that interact with a system. An actor can be a person, an organization, or an outside system that interacts with your application or system. System: A specific sequence of actions and interactions between actors and the system. Goals: The end result of most use cases.