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Development of Satisfaction Models for Passenger Car Interior Materials Considering Statistical, Technical, and Practical Aspects of Design Variables  

You, Hee-Cheon (Department of Industrial Engineering, Pohang University of Science and Technology)
Ryu, Tae-Beum (Department of Industrial Engineering, Pohang University of Science and Technology)
Oh, Kyung-Hee (Development & Innovation Center, Samsung Electronics)
Yun, Myung-Hwan (Department of Industrial Engineering, Seoul National University)
Kim, Kwang-Jae (Department of Industrial Engineering, Pohang University of Science and Technology)
Publication Information
IE interfaces / v.17, no.4, 2004 , pp. 482-489 More about this Journal
Abstract
As the functional characteristics of passenger cars have reached to a satisfactory level, customers place more concerns with the aesthetic aspects of interior designs. The present study developed satisfaction models of passenger car interior materials for six parts including crash pad, steering wheel, transmission gearshift knob, audio panel, metal grain, and wooden grain. Eight to fifteen material design variables such as color, embossing, and smoothness were defined for the six interior parts based on literature survey, customer reviews, and expert opinions. A satisfaction survey was conducted for 30 vehicles with 30 participants ($mean{\pm}SD$ of age = $28.7{\pm}6.6$) by using a modified magnitude estimation scale. Based on the survey results, the material design variables were screened from statistical, technical, and practical aspects. With the screened variables, satisfaction models were developed by using the quantification I method for the six interior parts, indicating the importance of material design variables and preferred material properties.
Keywords
passenger car; interior material; satisfaction model; quantification I method; variable selection;
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