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
Head and hand The blueprint signaled a decisive disconnection between head and hand in design: the idea of a thing made complete in conception before it is constructed. Richard Sennett, The Craftsman The preliminary sketch design