Kasutusavaldised

Kasutusavaldised, often translated as "use cases" in English, are fundamental tools in software engineering and product development. They describe how a user interacts with a system to achieve a specific goal. A kasutusavaldised is not a technical specification but rather a narrative that outlines the steps a user takes and the system's responses. They focus on the "what" and "why" from the user's perspective, rather than the "how" of the implementation.

The primary purpose of a kasutusavaldised is to capture functional requirements. By detailing user goals and the sequences of actions to achieve them, development teams gain a clear understanding of what the system needs to do. This clarity helps in defining the scope of the project, identifying potential issues early on, and ensuring that the final product meets user needs. They are particularly useful for communicating requirements between stakeholders, including clients, designers, and developers.

Each kasutusavaldised typically includes a title, a brief description, actors (the users or other systems interacting with the system), preconditions, the main success scenario (the step-by-step flow of events when everything goes as planned), and alternative flows or exceptions (scenarios where things deviate from the norm). This structured approach ensures that all aspects of user interaction are considered, leading to more robust and user-friendly systems. They are a crucial part of the requirements gathering and analysis phase of any project.