SRS, or Software Requirements Specification is a comprehensive description of the intended purpose and environment for software under development. The SRS fully describes what the software will do and how it will be expected to perform.
An SRS minimizes the time and effort required by developers to achieve desired goals and also minimizes the development cost.
What should the SRS address?
a) Functionality. What is the software supposed to do?
b) External interfaces. How does the software interact with people, the system’s hardware, other hardware, and other software?
c) Performance. What is the speed, availability, response time, recovery time of various software functions, etc.?
d) Attributes. What are the portability, correctness, maintainability, security, etc. considerations?
e) Design constraints imposed on an implementation. Are there any required standards in effect, implementation language, policies for database integrity, resource limits, operating environment(s) etc.?
