Cybermediana

Use cases are often graphical, and use case diagrams are supported by text descriptions, including use case and participant descriptions, as well as scenarios associated with use case templates that make use case methods simple and intuitive and ideal tools for discussing and clarifying developers’ understanding of user needs.

Use case modeling is a technique for capturing, modeling, and specifying system requirements that correspond to a set of behaviors that the system may perform when interacting with actors. These behaviors produce observable results and help achieve their goals. Use cases are named for the specific user goals of the principal actors, which in turn describe or explain the general order of activities and events, as well as variations in special conditions, exceptions, or error conditions, through textual description.