Implementation of a dynamic information system for design

This paper reports an implementation of the conceptually most important features of the BAS.CAAD information system, and the use of this implementation to create models of different levels of generalisation in the construction context, The foundations for the BAS.CAAD information system, which have been presented in an earlier paper, are briefly described. It is a dynamic information system for design. built on a generic ontological framework. The system supports the definition of classes in different levels of universality; the classes may originate from different standards or the individual designer, and allows a free combination of attributes.