The use of sketches in the generation of design ideas is thought to have various effects. However, previous studies have yet to elucidate exactly how sketching skills influence the expression and development of design solution candidates. Elucidating the role and effects of sketching skills is expected to transform sketching training, in which considerable time is traditionally spent on acquiring sketching skills, into an avenue for the effective acquisition of techniques for generating ideas for design features. We conducted a series of studies in order to clarify the role and effects of sketching skills in relation to the generation of design ideas in the process of product design. In our previous paper, a structural model of sketching skills was proposed upon analyzing the process of acquisition of sketching skills by students. In this study, we verified the usefulness of the proposed structural model of sketching skills for analyzing sketches drawn by designers. Specifically, we compared the differences between sketches of the same subject drawn by designers and students. Then, the usefulness of the model was demonstrated by clarifying the differences in sketching skills between designers and students as well as between individual designers. In addition, the results of analyzing sketches drawn by different designers suggested that the approach to idea generation and the sketching skills influence each other. This knowledge is expected to be of assistance in design education aimed at the integrated acquisition and utilization of comprehensive sketching skills.
Yuichi Izu, Graduate School of Keio University, Japan
Koichiro Sato, Keio University, Yokohama, Japan
Takeo Kato, Tokai University, Hiratsuka, Japan
Yoshiyuki Matsuoka, Keio University, Yokohama, Japan
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