Liikeominaisuuslausekkeet

Liikeominaisuuslausekkeet, known in English as "Functional Requirements," are a crucial part of software development and system design. They describe the actions a system must perform or the services it must provide to its users. Unlike non-functional requirements, which focus on the quality attributes of a system (like performance or security), functional requirements define the specific behaviors and functionalities.

These requirements are typically derived from stakeholder needs and user stories. They detail how the system should respond to different inputs, what data it should process, and what outputs it should generate. For example, a functional requirement for an e-commerce website might be: "The system shall allow users to add items to their shopping cart." Another could be: "The system shall process credit card payments securely."

Clear and unambiguous functional requirements are essential for guiding the development process. They serve as a blueprint for designers and programmers, ensuring that the final product meets the intended objectives. During testing, functional requirements are used to create test cases that verify whether the system behaves as specified. In essence, functional requirements define the "what" of the system's capabilities.