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A Value-Based Approach for Reasoning with Goal Models

Goal models are used to represent stakeholders’ intentions regarding the system to be developed and the alternative means to achieve those intentions. Goal-oriented analysis techniques have been proposed to help analysts reason when employing goal models. These techniques can be used to identify conflicts among goals, to choose between alternatives or to check the satisfiability of the model. Unfortunately, most of these techniques consider that stakeholders their intentions are equally important. This paper presents a value-based approach that and allows stakeholders to assign a relative importance to the elements in a goal model. It then propagates that importance by means of their relationships (dependencies, contributions and decompositions) in order to determine which elements are more valuable. Fisher’s weighted distribution and multi-criteria decision analysis techniques are used to deal with the propagation of the importance among the goals. The contribution is the alignment of information system with stakeholders and organizational goals