What is a use case?

What is a use case?

• A. A service, a behavior, that your system will perform
• B. A database record
• C. A user interface screen
• D. A report

Answer: (A)

A use case is a description of how the system will behave to help someone achieve a goal. It focuses on the service or behavior the system performs in response to an actor’s actions, outlining the sequence of steps the system takes to accomplish a task. It’s about what the system does for the user, not about the data it stores or the screens or reports that are shown. For example, a use case might be “place an order,” where the steps describe how the system validates items, processes payment, and confirms the order. This emphasizes the system’s behavior from the user’s perspective, rather than just the data object (a database record), the interface (a UI screen), or the output (a report).

A use case is a description of how the system will behave to help someone achieve a goal. It focuses on the service or behavior the system performs in response to an actor’s actions, outlining the sequence of steps the system takes to accomplish a task. It’s about what the system does for the user, not about the data it stores or the screens or reports that are shown.

For example, a use case might be “place an order,” where the steps describe how the system validates items, processes payment, and confirms the order. This emphasizes the system’s behavior from the user’s perspective, rather than just the data object (a database record), the interface (a UI screen), or the output (a report).