A Numerical Kano Model for Compliance Customer Needs with Product Development

Abstract

Abstract. Functional form and dysfunctional form of Kano model are considered as customer need regarding attribute of product. Both functional and dysfunctional forms are: Like, Must-be Neutral, Live-with and Dislike. The answers of customer regarding a product of functional and dysfunctional forms have been applied for selection of customer needs regarding product attribute (Kano evaluation). Filling-up and returning the Questionnaires by the individuals are essential for determining Kano evaluation. But many Questionnaires have not been returned in that case. Moreover, many possible consumers could not get opportunity to fill-up questionnaire. These uncertain or unknown consumers' opinions are also essential for product development. The choices of Kano evaluations have been outlined by: Attractive, One-dimensional, Must-be, Indifferent and Reverse. In this study, choices of evaluation of unknown customer are considered uniform cumulative vector probability (scenario 1). This study is based on the Monte Carlo simulation method, concept of probability and Kano model. This model has also been tested for its soundness and found fairly consistent including existing Kano model (scenario 2) and case survey for headlight of bicycle (scenario 3).

A Possibilistic Approach for Aggregating Customer Opinions in Product Development

“…At the same time, the internal customers suggest numerous solutions for satisfying the needs of the external customers. Therefore, a customer needs assessment and product solution identification have been two critical problems of product development and studied by numerous authors [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. In certain cases, the issues of mass customization, growing and variable customer demands, and optimal mix of products have been emphasized in dealing with customer needs [4][5][6][7].…”

“…The issue of sustainability has also been integrated with the aforementioned activities [8,17]. Some authors have put an emphasis on the customer needs models, e.g., the Kano model [9], and other related issues, e.g., the issue of customer preferences aggregation [10][11][12][13][14][15]18], the issue of missing customer opinion simulation [16], and the issue of uncertainty quantification in customer needs assessment [11][12][13][14][15].…”

Customer Needs Simulation System for Investigating Must-Be Attribute

“…Yet, researchers could not study regarding must-be attribute. Although they are active in this field [13][14][15][16][17][18][19] . For this purpose, the system development is studied in the following section.…”