CDT: a computer-assisted diagramming tool
Bharat P. Dave · Cumulative Index of Computer Aided Architectural Design · 1993
This paper describes the development of a computer- based diagramming tool (CDT) that supports incremental structuring of problem information using diagrammatic representations. Diagrams as graphic representations of symbolic propositions allow tentative reasoning and inferencing. The development of CDT has been carried out based on two observations. First, many diagrams are used to represent objects and relations between them. Second, diagrams comprise graphic Symbols arranged on a plane using topological and geometric relations to denote problem relevant information. CDT responds to these needs by incorporating a number of computational ideas: graphic interface, direct manipulation, constraint representation by demonstration, and specification and satisfaction of diagram composition rules.