Developing an Evaluation Approach for Software Trustworthiness Using Combination Weights and TOPSIS

AbstractSoftware is everywhere. However, software is not always trustworthy. Confronting the demand of software trustworthiness evaluation, this paper proposes a novel software trustworthiness evaluation approach based on combination weights (CW) and improved TOPSIS methods. The determination of CW relies on experWV¶ MXGgments and mathematical computation together. FAHP method is used to determine the importance of degree of criteria according WR WKH H[SHUWV¶ judgment. To avoid the subjective one-sidedness of weights, entropy weighting method is employed to calculate objective weights. Then, the paper adopts com-bination weighting method to obtain the CW of evaluation criterion. Next, the CW is applied to the improved TOPSIS method and the trustworthiness rating of software is calcu-lated. The result contributes to provide decision makers more decision information. Finally, the proposed approach is demonstrated with the evaluation of PLM software for an aircraft equipment manufacturer in China, which is fol-lowed by the sensitivity analysis and the results illustrate the robustness of the presented evaluation approach. Index Terms trustworthy software; FAHP; entropy weighting method; TOPSIS; evaluation model; PLM soft-war