Use Case

A use case explains how users interact with a product or system to accomplish tasks or reach goals. It identifies actors, systems, goals, and scenarios. A use case corresponds to a set of behaviors that the system may perform in interaction with its environment. There are many ways to write a use case, but it typically includes elements such as actors, systems, goals, preconditions, and alternative flows. Use cases are an important tool for software development, as they help to ensure that the software meets the needs of its users.