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Enhancement of CAD Model Interoperability Based on Feature Ontology

Lee Yoonsook    (Samsung Electronics   ); Cheon Sang-Uk    (Dept. of Mechanical Eng. KAIST   ); Han Sanghung    (Dept. of Mechanical Eng. KAIST  );
  • 초록

    As the networks connect the world, enterprises tend to move manufacturing activities into virtual spaces. Since different software applications use different data terminology, it becomes a problem to interoperate, interchange, and manage electronic data among heterogeneous systems. It is said that approximately one billion dollar has been being spent yearly in USA for product data exchange and interoperability. As commercial CAD systems have brought in the concept of design feature for the sake of interoperability, terminologies of design features need to be harmonized. In order to define design feature terminology for integration, knowledge about feature definitions of different CAD systems should be considered. STEP standard have attempted to solve this problem, but it defines only syntactic data representation so that semantic data integration is not possible. This paper proposes a methodology for integrating modeling features of CAD systems. We utilize the ontology concept to build a data model of design features which can be a semantic standard of feature definitions of CAD systems. Using feature ontology, we implement an integrated virtual database and a simple system which searches and edits design features in a semantic way.


  • 주제어

    data integration .   feature ontology .   semantic search.  

  • 참고문헌 (13)

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    7. Gruber, T. 1992. A mechanism to support portable ontologies. Technical Report KSL91-66, Stanford Knowledge Systems Laboratory 
    8. International Alliance of Interoperability. 2001. IFC 2x extension modeling guide, http://www.iai.org.uk 
    9. Choi, G.H., D.H. Mun and S.H. Han. 2002. Exchange of CAD part models based on the macro-parametric approach. International J. CAD/CAM, 2, 2, 23-31 
    10. Gallaher, M.P, A.C. O'Connor and T. Phelps. 2002. Economic impact assessment of the international standard for the exchange of product model data (STEP) in transportation equipment industry. NIST 
    11. Ciocoiu, M., M. Gruninger and D.S. Nau. 2000. Ontologies for integrating engineering applications. J. Computing and Information Science in Engineering, 1, 1, 12-22 
    12. Kim, J. Y., P. O'Grady and R.E. Young. 1991. Feature taxonomies for rotational parts: A review and proposed taxonomies. International J. Computer-Integrated Manufacturing, 4, 6, 341-350 
    13. ISO TC184/SC4 1992 ISO10303-48 WD, Industrial Automation Systems and Integration-Product Data Representation and Exchange - Part 48 : Integrated Generic Resources : Form Features, second edition 

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