Use case diagram

Displays the core functions of the system and its users

The user is called an actor)

Use case diagram composition:

User (actor), use case

Use Case using an elliptic Representation

To simplify the modeling process, the use case chart can be labeled with a priority.

 

Use Cases are used to indicate what a user can do.

Use staruml to draw:

Add digoal --> Use Case digoal: You can change the name of the created Use Case chart.

Add users and use cases.

File --> export digoal: (export the use case map in the Image Format)

Use case diagram