Abstract

This paper examines some deficiencies in structured systems development methods that have the effect of overlooking non-functional requirements. Evidence from four case studies shows that non-functional requirements are often overlooked, questioning users is insufficient, methodologies do not help in the elicitation of non-functional requirements and there is a lack of consensus about the meaning and utility of non-functional requirements. Some lessons are drawn from the domain of real time systems development. Finally a framework is advanced for taking a stakeholder approach to the conflict and organisational change issues associated with the elicitation stage of requirements analysis.

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