Dependency based Technique for Identifying the Ripple Effect of Requirements Evolution
Yuqing Yan, Shixian Li, Weijun Sun · Journal of Software · 2012
Requirements evolve continuously and inevitably. In order to effectively manage requirements change, an understa- nding from a quantitative perspective is needed in determining the extent of the propagation of the requirements as they evolve. In this paper, we first look back at the impact analysis in the software life cycle and give an overview of requ irements dependencies. We present a generic algorithm for ide ntifying requirements dependencies and the definitions that are adopted for this study.Using matrix theory on the requirements dependencies, we present the formulas of the ripple effects of requirements evolution and their properties. A typical example in structured analysis of M.Jackson is described to sh ow the effectiveness of the method presented here.