What is FRS
FRS stands for Functional Requirement Specification (also known as Functional Specification, Functional Requirements, or Functional Requirements Document). It’s a formal document used in systems engineering and software development to describe what a software system should do, without specifying how it should do it.
In other words, an FRS describes the expected behavior of a system, its features, and the interactions between the system and its users. This could include:
- Detailed descriptions of system features and functionalities.
- User requirements and user interaction with the system.
- Rules and constraints under which the system must operate.
- Data handling logic and processing needs.
- User interface elements and their behavior.
- Error handling and responses to abnormal situations.
An FRS is usually prepared by business analysts or systems analysts with input from all stakeholders. It provides developers with a clear understanding of what they need to build and serves as a reference guide throughout the development process. It’s also used by testers to understand what they need to validate and by stakeholders to understand what they can expect from the system.
It’s important to note that an FRS should focus on “what” the system should do, not “how” it should do it. The “how” is typically addressed in other documents, such as the System Design Specification (SDS) or Technical Specification.
