“Seeing is believing”or “A picture is worth a thousand words”stress the importance of visual formalisms in learning and communication. Every time, we want to draw a system, unconsciously, we draw a circle or a rectangle. A closed contour delimits a small surface that materializes an abstraction, in our case, a system, an object or a component. Children draw forms before language. Primates such as chimpanzees produce paintings with a striking similarity to drawings made by children at the early stages. The world seems to have an iconic representation before we can abstract it with language. Six recurring “diagrams” were identified by psychologists with children: circles/ovals, squares, rectangles, triangles, crosses, and irregular odd shapes.


Spare Part Information Hiding Complexity Reduction Object Technology Welding Torch 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer 2007

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