create three diagrams with examples for a scenario of your choosing: actor-actor actor-use case, and use case-use case. Provide an overview of your diagrams, noting the relationships between them.

Actor:

In use case modeling it specifies a role played by a user for interaction.

It played by an entity.

It can be human or automated system.

It is not part of the system.

Example:

• Cellular network
• User

actor-use case:

use case-use case: