Abstract
Engineering modeling and design generally involve a large set of independent but interrelated data items. One way to organize and store these data items in a systematic and consistent manner is through the use of a database management system. The abstraction concepts of aggregation and generalization provide a powerful mechanism for organizing and structuring engineering data. The invariants required to maintain the abstract data model are examined in this paper. Integrity issues involved in the data representation of hierarchically structured engineering models, such as constructive solid geometry models, are discussed. Object-oriented programming concepts are used to implement a prototype integrity subsystem for enforcement of integrity constraints in the aggregation/generalization framework for modeling data.
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Law, K.H., Jouaneh, M.K. & Spooner, D.L. Abstraction database concept for engineering modeling. Engineering with Computers 2, 79–94 (1987). https://doi.org/10.1007/BF01213976
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DOI: https://doi.org/10.1007/BF01213976