Functional requirements categorization Grounded Theory approach

The ever-increasing complexity of information system is making the requirements analysis an intricate and challenging task. The challenge is further intensified in the absence of well-defined body of knowledge as to which requirements must be looked for. Though the requirements are broadly classified as functional and non-functional requirements; however, a special concern is required for functional requirements as the information system, envisioned for an organization, is expected to meet the functional behaviour of that organization. We have used Grounded Theory approach to explore the granular level of functional requirements analyzed during requirements analysis. Based on this qualitative study, we propose a classification scheme for functional requirements in this paper.