Design process representation in ADDL

This paper presents the use of ADDL (Artifact and Design Description Language) for design process representation in an intelligent CAD system. ADDL is a special purpose programming language which conceived at the Centre for Mathematics and Computer Science (CWI). It is now being further developed both at the University of Tokyo and at CWI. ADDL is designed for implementing systems which assist a designer in performing a design task. It allows dynamic design object descriptions and a flexible design process representation. In this paper we briefly introduce design object representation in ADDL and elaborate on design process representation. In particular, we pay attention to the multi-world mechanism and the scenario interpreter. In the last section the actual implementation of ADDL on top of Smalltalk-80† is discussed.

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