A layout process is a widespread philosophy which may or won't incorporate a aid for particular methods. Some are to steer the general target of the design. Different systems are to steer the traits of the designer.
In the reflection-in-action paradigm, designers alternate between "framing", "making moves", and "evaluating moves". "Framing" refers to conceptualizing the problem, i.e., defining goals and objectives. A "move" is a tentative layout decision. The analysis procedure could result in further moves within the design.
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The rational model was independently developed by Herbert A. Simon,[8][9] an American scientist, and two German engineering design theorists, Gerhard Pahl and Wolfgang Beitz
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In the sensemaking–coevolution–implementation framework, designers trade among its three titular activities. Sensemaking comprises the two framing and comparing moves. Implementation is the method of creating the design object. Coevolution is "the method where the design agent simultaneously refines its intellectual photograph of the layout object based on its intellectual image of the context, and vice versa"