Kasutusjuhud

Kasutusjuhud, or use cases, are a fundamental concept in software engineering and business analysis. They describe a specific way a user interacts with a system to achieve a particular goal. Each use case outlines a sequence of actions performed by an actor (a user or another system) and the system's responses. The primary purpose of use cases is to capture the functional requirements of a system from the perspective of its users.

A well-defined use case typically includes a name, a brief description, a list of actors involved, preconditions (what must be true before the use case can start), postconditions (what will be true after the use case is successfully completed), and the main success scenario, which details the step-by-step interaction. It also often includes alternative flows and exception flows, describing variations from the main path or what happens when errors occur.

Use cases help stakeholders, developers, and testers to understand what the system is expected to do. They serve as a basis for designing the system's architecture, developing test plans, and communicating requirements effectively. By focusing on user goals, use cases ensure that the system being built addresses real-world needs and provides value to its intended users. They are a crucial tool in ensuring that software projects deliver the desired functionality and meet user expectations.