Functional Requirements Definition
Functional requirements definition is the process of defining the functionality of a system or component. It is usually done during the design phase of a project, but can also be done after the system or component has been implemented.
The functional requirements definition process includes:
identifying the stakeholders and their needs
determining what the system or component must do to meet those needs
documenting the requirements in a clear and concise manner
validating the requirements with the stakeholders
The benefits of a well-defined functional requirements include: improved communication between stakeholders, better understanding of the system or component by all parties involved, and reduced rework.