期刊
INFORMATICA
卷 33, 期 1, 页码 1-33出版社
INST MATHEMATICS & INFORMATICS
DOI: 10.15388/22-INFOR476
关键词
quality function deployment; interval-valued intuitionistic fuzzy sets; Z-fuzzy; numbers; Chebyshev's inequality; new product design
This paper introduces a novel intuitionistic Z-fuzzy QFD method based on Chebyshev's inequality, which can effectively handle the vague information in customer needs, and applies it to the design and development of hand sanitizer for COVID-19.
In Quality function deployment (QFD) approach, customers tend to express their needs in linguistic terms rather than exact numerical values and these needs generally contain vague and imprecise information. To overcome this challenge and to use the method more effectively for complex customer-oriented design problems, this paper introduces a novel intuitionistic Z-fuzzy QFD method based on Chebyshev's inequality (CI) and applies it for a new product design. CI provides the assignment of a more objective reliability function. The reliability value is based on the maximum probability obtained from CI. Then, the expected values of lower and upper bounds of interval valued intuitionistic fuzzy (IVIF) numbers are determined. A competitive analysis among our firm and competitor firms and an integrative analysis for the different functions of QFD is presented. The proposed Z-fuzzy QFD method is applied to the design and development of a hand sanitizer for struggling with COVID-19.
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