Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7717
Title: Determining the importance weights for the customer requirements in QFD using a fuzzy AHP with an extent analysis approach
Authors: Kwong, CK 
Bai, H
Issue Date: 2003
Publisher: Taylor & Francis
Source: IIE transactions, 2003, v. 35, no. 7, p. 619-626 How to cite?
Journal: IIE transactions 
Abstract: In the Quality Function Deployment (QFD) process, determining the importance weights for the customer requirements is an essential and crucial process. The Analytic Hierarchy Process (AHP) has been used to determine the importance weights for product planning, but this has occurred mainly in crisp (non-fuzzy) decision applications. However, human judgment on the importance of customer requirements is always imprecise and vague. To make up for this deficiency in the AHP, a fuzzy AHP with an extent analysis approach is proposed to determine the importance weights for the customer requirements. In the method, triangular fuzzy numbers are used for the pairwise comparison of a fuzzy AHP. By using the extent analysis method and the principles for the comparison of fuzzy numbers, one can derive the weight vectors. The new approach can improve the imprecise ranking of customer requirements inherited from studies based on the conventional AHP. Furthermore, the fuzzy AHP with extent analysis is simple and easy to implement to prioritize customer requirements in the QFD process compared with the conventional AHP. This paper uses an example of a hair dryer design to illustrate the proposed approach.
URI: http://hdl.handle.net/10397/7717
ISSN: 0740-817X
EISSN: 1545-8830
DOI: 10.1080/07408170390214482
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