Käyttökonteokset

Käyttökonteokset, which translates to "use cases" in English, is a fundamental concept in software development and system design. It refers to a description of how a user or system interacts with a product or service to achieve a specific goal. Use cases capture the functional requirements of a system by detailing the sequence of actions and responses between an actor (a user or another system) and the system itself.

The primary purpose of use cases is to define the intended behavior of a system from an external perspective. They are not intended to describe the internal workings of the system but rather what the system *does* for its users. This helps in understanding user needs, clarifying requirements, and guiding the development process.

A typical use case description includes the name of the use case, the actor(s) involved, a brief goal, a description of the normal flow of events, and potentially alternative or exception flows. By outlining these interactions, development teams can ensure that the final product meets the expectations and needs of its intended users. Use cases are often visualized using use case diagrams, which provide a high-level overview of the system's functionality and its relationships with actors.