Abstract
Trustworthy software has attracted increasing concern both in academia and industry. How to effectively evaluate the trustworthiness is becoming a closed question. This paper models the software trustworthiness evaluation (STE) problem as a multi-criteria decision-making (MCDM) problem, and proposes both an evaluation framework and a practical approach to evaluate the software trustworthiness based on the fuzzy analytic hierarchy process (FAHP) and fuzzy technique for order preference by similarity to ideal solution (FTOPSIS) methods. FAHP method is utilized to obtain the weights of evaluation criteria. The FTOPSIS method is used to determine the final ranking of the software alternatives. The uncertainty and vagueness included in evaluation procedure are represented as fuzzy triangular numbers. Finally, the proposed method is applied to the case study of evaluating the trustworthiness of project management (PM) software alternatives for a car manufacturer in China.
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