Levels of a Schema Implementations

  • E. G. Schlechtendahl
Part of the Research Reports ESPRIT book series (ESPRIT, volume 1)


As CAD systems provide different levels of capabilities one cannot expect all systems to support the full schema in their pre- and post processors. On the other hand, it must not be left to the choice of the implementer of processors which subset of entities and attribute he wants to support. Thus, this specification includes a definition of allowable are of the complete subsets of the complete subsets schema. These allowable subsets characterized by a set of numbers, called levels. Such levels are used to identify
  • 1. the geometric modeling capabilities (lg)

  • 2. the capabilities of defining assembly structures (la)

  • 3. the capabilities for parametric models and macros (lp)

  • 4. the capabilities of references (lr)


Product Family Assembly Structure Design Version Type Assembly Reference Schema 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© ECSC - EEC - EAEC, Brussels - Luxembourg 1988

Authors and Affiliations

  • E. G. Schlechtendahl
    • 1
  1. 1.Kernforschungszentrum Karlsruhe GmbHKarlsruhe 1Federal Republic of Germany

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