Control Cases during the Software Development Life-Cycle

The control case is a tool that may be applied in software development to model non-functional requirements during the requirements engineering process. The control case complements the use case in requirements design by capturing the systems qualities not addressed by the use case. This includes attributes such as performance, security, and the prescribed technology and standards. Together, the use case and control case offer a more complete representation of the requirements that define the system to be developed. In this paper, we extend the previous work on the control case by illustrating how this modeling tool is applied during the software development lifecycle (SDLC) from initial requirements through to commercial deployment. This includes business process analysis, detailed requirements gathering, architecture & design, software build, systems testing, and deployment. This work helps to bridge the gap in applying the control case to model non-functional requirements, illustrating how control cases are decomposed and refined further during the SDLC.