Conclusion: It is well known that the cost to rectify a defect increases significantly the later the stage in the systems development life cycle it is discovered. At the same time it is well known that software requirements can only be reliably uncovered when an iterative process of validating software under construction is used. Taking full advantage of iterative requirements validation while minimising the costs associated with late defect discovery requires a 360 degree perspective on requirements and testing that goes beyond the scope of individual projects, as well as a realistic perspective regarding the (in)ability to foresee future requirements.

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Jorn Bettin

About The Advisor

Jorn Bettin