Solution
A Use Case Diagram is a visual representation used in software development to illustrate the functional requirements of a system from the user's perspective. It shows the interactions between users (actors) and the system to achieve specific goals.
Purpose:
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Capturing Functional Requirements: Use Case Diagrams help identify and document all the functionalities the system must support to meet user needs.
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Understanding User Interactions: They illustrate how different types of users will interact with the system, clarifying roles and responsibilities.
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Visualizing System Scope: Use Case Diagrams provide a high-level overview of the system's boundaries, showing what the system does and what it does not do.
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Planning and Testing: They aid in planning the development process by identifying key workflows and in designing test cases to validate system functionalities.
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Communication: Use Case Diagrams serve as a communication tool between developers, stakeholders, and clients, ensuring everyone has a shared understanding of the system's purpose and functionalities.