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authors Ervin, Stephen M.
year 1988
title Computer-Aided Diagramming and the `Generator-Test' Cycle
source 1988. 22 p.: ill. includes bibliography
summary Simon's `generator-test' model is both a metaphor and a literal prescription for the organization of computer systems for designing. In most approaches to computer-aided design, one side of the cycle - generating or testing - is reserved to the human designer, the other side delegated to the computer. A more comfortable and comprehensive approach is to support switching these roles between designer and computer. This approach underlies a prototype system for computer-aided diagramming, the CBD (Constraint-Based Diagrammer). Diagramming is an important design activity, especially in preliminary design, as diagrams play a pivotal role between graphic and symbolic knowledge. Diagrams as a medium of knowledge representation and as means of inference have an ambivalent status in the generator-test model; they may serve either purpose. Examination of CBD sheds some light on Simon's model and on the requirements for sharing generating and testing with computational design tools
keywords problem solving, CAD, constraints, evaluation, synthesis
series CADline
references Content-type: text/plain
last changed 2003/06/02 11:58
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