オートマチック・ドローイングを用いたデザイン発想・設計支援ツールの作成とその有効性に関する考察

抄録

 In this paper, We modeled a method of idea forming as a designing support tool which we used “form expression that is not like a conscious intention (automatic drawing the following, “A-dw”)” positively for a stage in early period of design (the following, “A-dw's method of idea forming”). And we reported the substantial result that we analyzed by design experiment using this method. We repeated time savings at the beginning from 60 seconds by preliminary experiment 1, and tested drawing time per one sheet to draw in five minutes for 20 students majoring architecture design. As a result, we judged the most suitable time for drawing "A-dw" as six seconds (50 sheets). At this time, we could confirm a phenomenon to repeat similar drawing (the following, “chain drawing”) in continual drawing.
 By preliminary experiments 2 and 3, the usability of the idea method for the subject, time allocation of each STAGE(01 - 04) , on the premise with the conscious "the drawing that was unrelated to intention-like problem", "A-dw" assuming the problem explanation was made and reference method of "A-dw" from influence on STAGE02 by "the chain", above-mentioned four points from inspection. As a result, I set by the flow of the "A-dw’s method of idea forming "(Fig11).
 We compare (This experiment) subject group to apply the A-dw’s method of idea forming (the following, "ON team") with the subject group designing it freely (the following, "OFF team") in at the time of a design. We assumed the problem like the preliminary experiment, organized into two teams by 12 students for 24 architectural design students and tested a design. And, for the last proposal, we evaluated it by two kinds of following methods by five business designers who did not know the contents except the problem at all.
 1)Rank scale evaluation: we added up a mark of the last proposals to make an order them,
 2)Five phases of six items evaluations : we performed five phases of evaluations about six items [context] / [novelty] / [concreteness] / [form] / [space] / [expression]

 The findings are as follows.
 1)ON team which employed "A-dw’s method of idea forming" had high assessment score in the final proposal about both an order standard evaluation and Five phases of six items evaluations, an order standard evaluation, and an evaluation of [novelty] was particularly high in six items.
 2)ON team compared with OFF team, scored higher in the final proposal at the average points of idea. It is thought that the early idea emission (A-dw) promoted the emission of the subsequent idea.
 3)Contents of "Starting point Idea(Sp-I)", there is a clear difference, ON team [Non architecture (Other than building relations)] ⇔ OFF team [Architecture (Building relations)].
 4)In higher group of ON teams, compared with lower group had higher Ratio to convert into a new form and concept from "A-dw" which was similar to [Have no concept].
 In other words drawing not to be connected to the contents which are targeted for a design(problem) like [Have no concept] directly is easy to lead conversion to the new recognition and interpretation that are like "unexpected discovery", and it is thought that it was more likely to lead to the high suggestion of the evaluation.