WHY FUZZY QUALITY?

Abbas Parchami, Bahram Sadeghpour, Gildeh Mashaallah Mashinchi

Abstract: Such as other statistical problems, we may confront with uncertain and fuzzy concepts in quality control. One particular case in process capability analysis is a situation in which specification limits are two fuzzy sets. In such a uncertain and vague environment, the produced product is not qualified with a two-valued Boolean view, but to some degree depending on the decision-maker strictness and the quality level of the produced product. This matter can be cause to a rational decision-making on the quality of the production line. First, a comprehensive approach is presented in this paper for modeling the fuzzy quality concept. Then, motivations and advantages of applying this flexible approach instead of using classical quality are mentioned.

Keywords: fuzzy quality, process capability index, quality control chart, manufacturing process

DOI: 10.18421/IJQR10.03-01

Recieved: 27.12.2014  Accepted: 22.07.2016  UDC: 332.05

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