Use Case Model: Mapping User Interactions with the System

 what is a use case model?

A use case model is used to represent how a system interacts with external users or actors to achieve specific goals. This can outline functional requirements from the user perspective, and it will serve as a guide for creating system functionalities.

Use Case Models: Capturing user requirements, end-to-end functionality of the system from a users perspective as s/he performs the real tasks of day to day deployment. They are most useful in the design and testing phase because this is where they can be leveraged to create test cases.

example of textual use cases:


Example of visual use case:

Elements of a Use Case Model

  • Actors: Individuals or external systems that interact with the system.
  • Use Cases: Specific tasks or functions that the system performs in response to an actor’s request (e.g., "Login", "Place Order").
  • Relationships: The associations between actors and use cases, indicating how they interact.

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