A use case is an activity within a system enabling a user to accomplish a goal. Pertinent to that goal, a use case diagram is a simple visual representation of user(s), system, use cases, and relationships among them. Dating back to the early 1990’s, use case and use case diagramming are among the earliest constructs […]

On the use case and use case diagram constructs, this 9′ video provides useful background, definitions, guidance, and tips Although designed largely as a commercial, its marketing dimensions are not extremely salient or disagreeable.