Abstract
There is a current need for the development of intelligent CAD systems to integrate all phases of a design product’s lifecycle. One challenge is to satisfy the requirements of many different representation methods needed for the support of specialized designers working on the same application. It is essential to provide a CAD system composed of a number of representations or views, possibly derived from the same unified model. It is very difficult to define these specialized views correctly so that changes made to one view do not cause inconsistencies in the rest of the representation. Here we describe an approach to view definition that is rooted in our work on active databases. In this paper, we present extensions to SORAC that allow specialized view representations to be correctly defined in the same manner. View derivations are modeled as semantic relationships, with transformations between view and underlying representation as the associated behaviors. This allows the SORAC analysis tools to be extended to identify problematic view definition and transformation rules. Since specialized representations for design are often derived from long established practices, problematic view definitions, once discovered, must still be permitted. Thus, we conclude with a discussion of a stage-based transaction paradigm in which problematic updates can be managed.
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© 1994 Springer Science+Business Media Dordrecht
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MacKellar, B.K., Peckham, J. (1994). Specifying Multiple Representations of Design Objects in SORAC. In: Gero, J.S., Sudweeks, F. (eds) Artificial Intelligence in Design ’94. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0928-4_32
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DOI: https://doi.org/10.1007/978-94-011-0928-4_32
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