Co-Evolution of Problem and Solution Spaces in Creative Design An Essay by Nigel Cross & Kees Dorst www.researchgate.net Between the two spaces What the prototype tells youSolution to evaluation and back againIn terms which must be alteredPrimitive design
The situation talks back As the designer shapes the situation in accordance with his initial presentation of it, the situation “talks back” and he responds to the situation’s back-talk. In a good process of design, this conversation with the situation is reflexive. In answer to the situation’s back-talk, the designer reflects-in-action on the construction of the problem, the strategies of action, or the model of the phenomena, which have been implicit in his moves. Donald Schon, The Reflective Practitioner What's wrong with the rational modelWhat the prototype tells youExpressing ideas helps to form themThe idea grows as they workDrawing as a means of thinkingFour principlesWriting, Briefly design