The Subset of the CAD*I Data Schema

  • Michel Raflik
  • Bernd Pätzold
Part of the Research Reports Esprit book series (ESPRIT, volume 5)


In the CAD*I Database Group we handle geometry in the form of closed models as well as in the form of models divided into their single points, lines, directions, planar surfaces and topology. A closed model contains geometry in any format (in a second step also a part program or NC-data). It is impossible to look into the closed model, to recognize any structure in it. This view of data is used to archive and exchange data via a common database. To inform about the content, each closed model possesses a set of administrative data.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Michel Raflik
    • 1
  • Bernd Pätzold
    • 2
  1. 1.CISIGRAPH, Data Base GroupLes Bureaux de Parc la GriffonVitrollesFrance
  2. 2.Institut für Rechneranwendung in Planung und KonstruktionUniversität KarlsruheKarlsruheGermany

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