Käyttötapakokonaisuus

Käyttötapakokonaisuus is a Finnish term that translates to "use case" or "scenario" in English. It refers to a description of how a user interacts with a system or product to achieve a specific goal. Use cases are a fundamental concept in software development and system design, helping to understand user needs and define system functionality.

A typical use case describes a series of steps or interactions between a user (or an actor) and a system. It outlines the user's objective, the conditions under which the use case is performed, the expected sequence of actions, and the potential outcomes. This structured approach allows developers to identify all necessary features and ensure that the system meets the intended purpose.

In practice, use cases are often documented using diagrams and textual descriptions. They are valuable for communication among stakeholders, including clients, designers, developers, and testers. By focusing on user goals and interactions, use cases help to ensure that the final product is user-friendly and effectively addresses the problems it is designed to solve. The concept is widely used in agile methodologies and is a cornerstone of requirements engineering.