In software engineering, SRS stands for Software Requirements Specification. It is a document that describes what the software will do and how it will be expected to perform. An SRS details the specific requirements of the software that is to be developed, and it provides a single source of truth that every team involved in development will follow. The SRS fully describes what the software will do and how it will be expected to perform, and it minimizes the time and effort required by developers to achieve desired goals and also minimizes the development cost. An SRS outlines how an application should operate and how the product development team should build it. An SRS should have the following characteristics:
- Correct -- should accurately describe the software that is to be developed.
- Unambiguous -- should be clear and concise, with no room for interpretation.
- Complete -- should include all necessary information about the software.
- Consistent -- should be internally consistent and not contain any contradictions.
- Ranked for importance and/or stability -- should prioritize requirements based on their importance and/or stability.
- Verifiable -- should be possible to verify that the software meets all requirements.
- Modifiable -- should be possible to modify the SRS as the project evolves.
- Traceable -- should be possible to trace each requirement back to its source.
