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Data bases for CAD applications

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4 Author(s)
Santana, O. ; Lab. d''Electrotech. de Grenoble, ENSIEG, St. Martin d''Heres, France ; Chia, B.T. ; Coulomb, J.l. ; Iafrate, J.P.

The characteristics of CAD data and the possibilities offered by database management systems with different data models are described. A classification of databases according to their data models is presented, and the different data models are compared. The semantic data models allow a higher abstraction level but the overhead cost involved in implementing these abstraction mechanisms may not be acceptable for finite-element applications. The object-oriented model, despite the many possibilities offered, has not attained sufficient stability for widespread use. A solution consisting of extending a classical data model to take into account the more important CAD data characteristics is proposed

Published in:

Magnetics, IEEE Transactions on  (Volume:25 ,  Issue: 4 )