Fuzzy logic based decision model for product design

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82 Citations (Scopus)


A fuzzy decision-making method for selecting an optimum from various design alternative is proposed. The development of a juicer is taken as an example in this study. The evaluation objectives are arranged in a hierarchial structure with several levels. The relative contribution (weighting function) of each objective to the overall value of the solution and the rating or degree of approximation of a solution with respect to a given objective are quantified with the membership functions of fuzzy set. A computer program built with a weighted generalized mean method is used to calculate the fuzzy probalitity level by level the lowest-level objectives. After the fuzzy expected values of the top-level objectives are calculated, they are used to make a decision quantitatively on selecting the optimal design alternative. This method can also be used other design problems.

Original languageEnglish
Pages (from-to)103-116
Number of pages14
JournalInternational Journal of Industrial Ergonomics
Issue number2
Publication statusPublished - 1998 Feb

All Science Journal Classification (ASJC) codes

  • Human Factors and Ergonomics
  • Public Health, Environmental and Occupational Health


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