A study of product design using an integration of conjoint analysis and TRIZ (Teoriya Resheniya Izobretatelskikh Zadatch) : a case study (product hanger)

Kamarudin, Mohd Nizam (2014) A study of product design using an integration of conjoint analysis and TRIZ (Teoriya Resheniya Izobretatelskikh Zadatch) : a case study (product hanger). Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This project discussed about the design properties of product based on the customer needs using Kansei Words method, Conjoint Analysis, TOPSIS, and TRlZ. To identify, investigate, and determine what the characteristics of products required by customer, this project conducted the preliminary test survey, post test, main survey through the developed questionnaires to 500 varsity students in Universiti Teknikal Malaysia Melaka as respondents towards hanger products as a case study. Based on what their motivation when they buy a product and what the relevant attributes to their preferences as well as the technical requirements of a product, beside the emotional or affective perspective of the product design, this project employ SPSS software for statistical data analysis and Conjoint Analysis to perform the combination of requirements against the product characteristics and attributes. The result of main survey shows that the preference of product design is related to price, durable, and made by plastic material. While towards the emotional design perspective (as it is articulated through semantic differential towards Kansei words towards 10 hanger design), the customer articulate 'Simple' (SI) as their expression which mostly represented in Design-1, Design-5, and Design-6 based on the TOPSIS method. Since the customer prefer the design of products that ai·e actually contradiction among their technical characteristics (such Plastic, Durable, Length, Width, Ease to Use), then the using of TRlZ approach is required to solve these contradictions for improving made, that is in 'Dynamic'. This is a background of the 6 new proposed design through the prototype of products made in which through the post test survey to the customers shows more to likely preferred since the mechanism of these hanger products are 'can be Folded' or 'Extended-Retractable', especially if the material of product is plastic and the frame rod is 'Flat'. In these new hanger product prototypes, the customers are not only articulate it as 'Simple', but also 'Stylish' , and 'Modem' (Design 8) as Rank-I , while for Rank-2; Design 9 is 'Modern'.

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