toimimisnõue

Toimimisnõue is an Estonian term that translates to "functional requirement" in English. It describes a system's or component's ability to perform a specific function or task. Functional requirements define what the system should do, outlining the behavior, operations, and services it must provide. They are a crucial part of the software development process, serving as a basis for design, development, and testing.

These requirements are typically derived from user needs and business objectives. They focus on the inputs the system will accept, the processing it will perform, and the outputs it will 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 calculate the total cost of items in the shopping cart, including applicable taxes and shipping fees."

Functional requirements are often documented in user stories, use cases, or detailed specification documents. They help ensure that the final product meets the intended purpose and satisfies the end-users' expectations. In essence, they answer the question of "what" the system needs to accomplish. They are distinct from non-functional requirements, which describe "how" the system should perform, such as its performance, security, and usability.