Towards a Scope Management of Non-Functional Requirements in Requirements Engineering


Kassab, M. and Ormandjieva, O. and Daneva, M. (2007) Towards a Scope Management of Non-Functional Requirements in Requirements Engineering. In: Proceedings of the International Workshop on Measuring Requirements for Project and Product Success (MEREP07), 6 Nov 2007, Palma de Mallorca, Spain (pp. pp. 10-20).

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Abstract:Getting business stakeholders’ goals formulated clearly and project scope defined realistically
increases the chance of success for any application development process. As a consequence, stakeholders
at early project stages acquire as much as possible knowledge about the requirements, their risk estimates
and their prioritization. Current industrial practice suggests that in most software projects this scope
assessment is performed on the user’s functional requirements (FRs), while the non-functional
requirements (NFRs) remain, by and large, ignored. However, the increasing software complexity and
competition in the software industry has highlighted the need to consider NFRs as an integral part of
software modeling and development. This paper contributes towards harmonizing the need to build the
functional behavior of a system with the need to model the associated NFRs while maintaining a scope
management for NFRs. The paper presents a systematic and precisely defined model towards an early
integration of NFRs within the requirements engineering (RE). Early experiences with the model indicate
its ability to facilitate the process of acquiring the knowledge on the priority and risk of NFRs.
Item Type:Conference or Workshop Item
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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