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Title: The implementation of quality function deployment based on linguistic data
Authors: Shen, X.X.
Tan, K.C. 
Xie, M. 
Keywords: Fuzzy number
Fuzzy set theory
House of quality
Linguistic variable
Quality function deployment
Sensitivity analysis
Issue Date: Mar-2001
Citation: Shen, X.X., Tan, K.C., Xie, M. (2001-03). The implementation of quality function deployment based on linguistic data. Journal of Intelligent Manufacturing 12 (1) : 65-75. ScholarBank@NUS Repository.
Abstract: Quality function deployment (QFD) is a customer-driven quality management and product development system for achieving higher customer satisfaction. The QFD process involves various inputs in the form of linguistic data, e.g., human perception, judgment, and evaluation on importance or relationship strength. Such data are usually ambiguous and uncertain. An aim of this paper is to examine the implementation of QFD under a fuzzy environment and to develop corresponding procedures to deal with the fuzzy data. It presented a process model using linguistic variables, fuzzy arithmetic, and defuzzification techniques. Based on an example, this paper further examined the sensitivity of the ranking of technical characteristics to the defuzzification strategy and the degree of fuzziness of fuzzy numbers. Results indicated that selection of the defuzzification strategy and membership function are important. This proposed fuzzy approach allows QFD users to avoid subjective and arbitrary quantification of linguistic data. The paper also presents a scheme to represent and interprete the results.
Source Title: Journal of Intelligent Manufacturing
ISSN: 09565515
DOI: 10.1023/A:1008955630880
Appears in Collections:Staff Publications

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