Question

Use case diagram come under_ ?

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Answer 1

Answer:

A use case diagram is a dynamic or behavior diagram in UML.

Explanation:

In the Unified Modeling Language (UML), a use case diagram can summarize the details of your system's users (also known as actors) and their interactions with the system. ... Goals that your system or application helps those entities (known as actors) achieve. The scope of your system.

Answer 2

Answer:

use case diagrams consistents of actors, use cases and their relationships. the diagram is used to model the, system/subsystem of an application. A single use case diagram captures a particular functionality of a system.

Hence to model the entire system, a number of use case diagrams are used.