Computational support for visual thinking in design ideation

A CDM (cognitive design medium) is defined as a medium which supports the cognitive nature of design in computerized environments. We review the theoretical background and demonstrate the basis upon which an interactive counterpart can be achieved in supporting the cognitive capabilities of the designer, such as visual thinking. The approach is elaborated and illustrated by experimental work in the area of conceptual design. We define three phenomena related to visual thinking in design which are characteristic of conceptual design: ideation, re-representation, and the evocation of generic representations. Finally, we demonstrate through examples how interactive computational environments can support these cognitive design phenomena.