Käyttökohtauksia

Käyttökohtauksia, often translated as "use cases," is a concept used in software engineering and system design to describe how a user interacts with a system to achieve a specific goal. It outlines a sequence of actions and events that occur when a user engages with a system. A use case typically focuses on the "what" and "why" of user interaction rather than the "how," providing a high-level view of functionality.

Each use case is defined by a primary actor, who is the individual or entity initiating the interaction. It also includes a description of the goal the actor wishes to achieve. The use case details the normal flow of events, which is the most common and expected sequence of steps. Additionally, it can specify alternative flows, which represent variations or less common paths the interaction might take, and exception flows, which describe how the system should handle errors or unexpected situations.

The purpose of use cases is to capture functional requirements from the user's perspective. They help stakeholders, including developers, designers, and clients, understand the intended behavior of the system. By clearly defining interactions, use cases facilitate communication, aid in test case development, and ensure that the final product meets user needs. They are a valuable tool for requirements gathering and analysis throughout the software development lifecycle.