Making Real Progress with the Requirements Defects Problem

Making Real Progress with the Requirements Defects Problem

R. Geoff Dromey (Griffith University, Australia)
Copyright: © 2006 |Pages: 22
DOI: 10.4018/978-1-59140-857-4.ch004
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Abstract

Requirements defects remain a significant problem in the development of all software intensive systems including information systems. Progress with this fundamental problem is possible once we recognize that individual functional requirements represent fragments of behavior, while a design that satisfies a set of functional requirements represents integrated behavior. This perspective admits the prospect of constructing a design out of its requirements. A formal representation for individual functional requirements, called behavior trees makes this possible. Behavior trees of individual functional requirements may be composed, one at a time, to create an integrated design behavior tree (DBT). Different classes of defects are detected at each stage of the development process. Defects may be found at the translation to behavior trees, and then at the integration of behavior trees and when individual component behavior trees are projected from the DBT. Other defects may be found by inspection and model-checking of the DBT.

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