Functional Requirements
Functional requirements are specifications that define what a system, software, or product must do to meet user needs and business objectives. They describe the specific behaviors, functions, and features that the system should perform, such as calculations, data processing, or user interactions. These requirements are typically documented in detail to guide development and testing processes.
Developers should learn and use functional requirements to ensure that software is built to meet user expectations and business goals, reducing rework and misalignment. They are essential during the requirements analysis and design phases of software development, particularly in projects following methodologies like Waterfall or Agile, where clear specifications help in creating accurate estimates, test cases, and validation criteria.