What is a use case diagram, and in which scenarios is it typically used?

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A use case diagram is a visual representation of the interactions between users and a system, showing the different ways users can interact with the system.

Use case diagrams are typically used in software development to capture the functional requirements of a system.
They help in identifying the actors (users) and their interactions with the system.
Use case diagrams show the various use cases or scenarios in which the system can be used.
They are useful for communicating system functionality to stakeholders and developers.
Examples of scenarios where use case diagrams are used include designing a new software application, defining the functionality of a website, or planning a system upgrade.

What is a use case diagram, and in which scenarios is it typically used?

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