VeGAn-Tool: A Fuzzy-logic Approach for Value-based Goal Model Analysis
Carlos Cano-Genoves, Emilio Insfr\'an, Silvia Abrah\~ao

TL;DR
The paper introduces VeGAn-Tool, a fuzzy-logic based system that prioritizes goals in goal models by stakeholder importance and propagates this information through goal relationships to support decision-making.
Contribution
It presents a novel fuzzy-logic approach using FTOPSIS to quantify and propagate goal importance in goal models, enhancing stakeholder value assessment.
Findings
Effective goal prioritization based on stakeholder importance.
Propagation of importance through goal relationships.
Improved decision support in goal-oriented analysis.
Abstract
Goal-oriented analysis tools are used to assess goal models and assist analysts in decision-making. We introduce the VeGAn-Tool, which prioritizes goals according to their qualitative importance for the stakeholders and propagates this information in the goal model according to the different types of relationships. The FTOPSIS technique is used to calculate the value of each intentional element by employing the fuzzified importance (importance level fuzzified and refined by a confidence level) and the impact among the related intentional elements. The result is a prioritized goal model according to the value of each intentional element from the stakeholders' point of view.
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