Journal
SOFT COMPUTING
Volume 22, Issue 6, Pages 2015-2024Publisher
SPRINGER
DOI: 10.1007/s00500-016-2464-8
Keywords
Technical attributes ratings; Fuzzy QFD; Interval-valued intuitionistic fuzzy sets; Choquet integral
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Funding
- National Natural Science Foundation of China [71272177]
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As a customer-oriented methodology, fuzzy quality function deployment (QFD) has been widely applied to translate customer requirements into product design requirements and to improve the product quality in fuzzy environments. This paper puts forward an approach, which rates technical attributes in fuzzy QFD by integrating interval-valued intuitionistic fuzzy sets and Choquet integral under the case of considering the correlation among customer requirements. A method for converting interval-valued intuitionistic fuzzy numbers into relative weights for customer requirements is proposed. In order to reflect different attitudes toward risks from different decision makers, a score function with a degree of risk preference K and interval comparison matrices are obtained. Finally, the proposed approach is illustrated with a scenario about the process of designing steering wheel for electric vehicles.
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