Integrating Kano Model, AHP, and QFD Methods for New Product Development Based on Text Mining, Intuitionistic Fuzzy Sets, and Customers Satisfaction

Table 2

The IFKM questionnaire.

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Function and dysfunction questions (e.g., if the VAC has/does not have simple and liberal attribute, how do you feel?)

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Degree of score satisfaction and dissatisfaction (e.g., what do you feel according to your choice?)

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Note. Satisfaction + dissatisfaction is less than 1.