We develop an architecture for a product master model that federates
CAD systems with downstream application processes for different
feature views that are part of the design process. The architecture
addresses especially the need to make persistent associations of design
information with net shape elements. Moreover, the design respects the
need of commercial CAD systems (and of downstream applications) to
maintain proprietary information that must not be disclosed in the
Two case studies consider the requirements on the master model
architecture, for geometric dimensioning and tolerancing, and for
manufacturing process planning using NC machining. We discuss how to
reconcile the associated feature views and how to update them under
net shape redesign. The case studies indicate that many design
changes that arise from these downstream views can be formalized by a
well-defined problem on dimensional and geometric constraints.
CitationHoffmann, C.M.; Joan Arinyo, Robert. "CAD and the product master model". 1997.
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