Extensible object-oriented framework for engineering design data bases

Book · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5938710

Bapa Rao, K V

This thesis describes DOM (Design Object Model), a model of objects in a database to support computer-aided design of complex artifacts such as VLSI chips and software systems. Important considerations in the design of DOM are uniformity of representation, integration of concepts, and the ability to represent design data and the more-conventional kinds of data in a common framework. DOM is object-oriented in that it seeks to directly capture the properties of real-world objects; it is extensible in that a DOM database and schema can be incrementally extended to accommodate evolution in the real world. DOM has been developed in two phases. First, the conceptual requirements of design data models are formulated as a set of abstract concepts obtained by analyzing the properties of design environments. In the second phase, the abstract concepts are mapped to a simple object-based data model, and thus articulated as concrete concepts. Simple and compound objects realize the static structure dimension. Generic and realization objects implement evolution structure permitting multiple evolutionary alternatives. Schema objects represent meta-designs, and copy objects represent instantiations.

• Research Organization: University of Southern California, Los Angeles (USA)
• OSTI ID: 5938710
• Country of Publication: United States
• Language: English

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