Question

The primary purpose of a use case diagram is

Select one:
a. to uncover additional details such as attributes and methods of a class
b. to show the users interaction with the system
c. model the interaction between the system and its environment

Answer 1

The primary purpose of a use case diagram is to model the interaction between the system and its environment. Use case diagrams depict the functionality of a system from the user's perspective, focusing on the system's behavior as it responds to requests from the users or other external actors. They show the different use cases or scenarios that users can perform with the system and the actors that participate in these interactions. Use case diagrams are often used in requirements analysis and software design to help clarify and communicate the system's purpose and behavior. Option (c) correctly explains the primary purpose of a use case diagram.

Answer 2

b. to show the users interaction with the system

Step-by-step explanation:

A use case diagram is a type of UML diagram that shows the interactions between a system and the actors that use it. It is used to model the behavior of a system from the perspective of the users. A use case diagram does not show the internal details of the system, but only the interactions between the system and the actors.

The other options are incorrect.

• Option a is incorrect because a use case diagram does not show the attributes and methods of a class.
• Option c is incorrect because a use case diagram does not model the interaction between the system and its environment.