Fuzzy linguistic decision analysis for Web server system future planning

Web administrators´ prioritization of several upgrading alternatives with respect to multiple contradictory criteria involve the fuzziness and imprecision of human subjective judgements in a Web server system. Fuzzy concepts are used to enhance the traditional analytic hierarchy processes (AHP) which are mainly applied in a crisp decision environment. The entropy weight proposed by Don-Lin Mon (1995) is implemented to evaluate the upgrading priorities in a Web server system. Fuzzy numbers act as a reference to indicate the influence strength of each element in the hierarchy structure. The α-cut-based method is utilized to avoid the fuzzy number ranking process where the fuzzy judgement matrix is reconstructed into an interval fuzzy judgement matrix. A fuzzy linguistic term approach is applied to capture the fuzziness and subjectiveness of Web administrator judgements