Lecture Requirement engineering - Chapter 5: Requirement specification. This chapter presents the following content: Introduction, general description, system features, external interface requirement, non functional requirements, other requirements. | Requirement Specification Requirement specification systematically organize the requirements arrived during requirements analysis into a Software Requirements Specification (SRS) document. document requirements properly. Developing Software Requirement Specification, focus of the project moves from the broad statement of user needs, goals and objectives, target markets and features of the system to the details of how these features are going to be implemented in the solution. The SRS precisely states the functions and capabilities that a software system must provide and the constraints that it must respect. SRS document is a contract between the development team and the .