Intelligent Process Control Using Control Charts-I: Control Charts for Variables


Kahraman C. , Yanık Özbay S.

INTELLIGENT DECISION MAKING IN QUALITY MANAGEMENT: THEORY AND APPLICATIONS, vol.97, pp.23-70, 2016 (Refereed Journals of Other Institutions) identifier

  • Publication Type: Article / Article
  • Volume: 97
  • Publication Date: 2016
  • Doi Number: 10.1007/978-3-319-24499-0_2
  • Title of Journal : INTELLIGENT DECISION MAKING IN QUALITY MANAGEMENT: THEORY AND APPLICATIONS
  • Page Numbers: pp.23-70

Abstract

Shewhart's control charts are used when you have enough and exact observed data. In case of incomplete and vague data, they can be still used by the help of the fuzzy set theory. In this chapter, we develop the fuzzy control charts for variables, which are namely (X) over bar and R and (X) over bar and S charts. Triangular fuzzy numbers have been used in the development of these charts. Unnatural patterns have been examined under fuzziness. Besides, fuzzy EWMA charts have been also developed in this chapter. For each fuzzy case, we present a numerical example.