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Vol: 55(69) No: 1 / March 2010 Handling Complexity and Content Related Problems at Product Modeling László Horváth Institute of Intelligent Engineering Systems, John von Neumann Faculty of Informatics, Óbuda University, H-1037 Budapest, Bécsi u. 96/b, Hungary, phone: +36-1666-5524, e-mail: horvath.laszlo@nik.uni-obuda.hu Imre J. Rudas Institute of Intelligent Engineering Systems, John von Neumann Faculty of Informatics, Óbuda University, H-1037 Budapest, Bécsi u. 96/b, Hungary, e-mail: rudas@uni-obuda.hu Keywords: Digital product definition, engineering in virtual space, product modeling, modeling of human intent Abstract Modeling of products in engineering systems for lifecycle management of product information has reached a level where all product related information can be integrated in a single but large and very complex product model. In order to develop well-organized systems and application specific protocols for the construction of product model, an ISO standard provides global platform. The authors analyzed inherent problems with current product modeling and proposed new modeling methods in order to handle them. This paper introduces some of these methods. It starts with a discussion about functions and role of human intent at product definition in modeling systems. Following this, the problem posed by high number of unorganized relationships is emphasized and a new method is proposed for their handling. Rest of the paper is devoted to a second problem of human-computer interaction in case of information based current product models. In order to improve the communication between human thinking and model information generation processes, a new information content based extension is proposed to the currently prevailing product models. References [1] P-H. Chen, C. Wana, R. L. K. Tionga, S. K. Tinga and Q. Yangb, “Augmented IDEF1-based process-oriented information modeling,” in Automation in Construction, Volume 13, Issue 6 , November 2004, Pp. 735-750. [2] H. Paris and D. Brissaud, “Modeling for process planning: the links between process planning entities,” Robotics and Computer-Integrated Manufacturing, Volume 16, Issue 4 , August 2000, Pp. 259-266. [3] J. J. Shah, D. Anderson, Y. S. Kim and S. Joshi “A Discourse on Geometric Feature Recognition From CAD Models,” in Journal of Computing and Information Science in Engineering Journal of Computing and Information Science in Engineering -- Volume 1, Issue 1, March 2001, pp. 41-51 Volume 1, Issue 1, pp. 41-51. [4] J. Renaud, “Improvement of the Design Process through Knowledge Capitalization: an Approach by Know-how Mapping,” in Concurrent Engineering, Vol. 12, No. 1, 25-37 (2004). [5] Y.-S. Ma, G. A. Britton, S. B. Tor and L. Y. Jin, “Associative assembly design features: concept, implementation and application,” in The International Journal of Advanced Manufacturing Technology, Volume 32, Numbers 5-6 / March, 2007, pp. 434-444. [6] Y.-S. Ma and T. Tong, "Associative feature modeling for concurrent engineering integration,” in Computers in Industry, Volume 51, Issue 1, (May 2003), pp. 51 – 71. [7] C. Ledermanna, C. Hanskeb, J. Wenzelc, P. Ermannia and R. Kelm, “Associative parametric CAE methods in the aircraft pre-design,”Aerospace Science and Technology, Volume 9, Issue 7 , October 2005, pp. 641-651. [8] L. Horváth and I. J. Rudas, “Human Intent Description in Environment Adaptive Product Model Objects,” in Journal of Advanced Computational Intelligence and Intelligent Informatics, Tokyo, Vol 9, No.4, pp. 415-422, 2005. [9] L. Horváth, I. J. Rudas and C. Couto, "Integrationration of Human Intent Model Descriptions in Product Models", in Digital Enterprise - New Challenges Life-Cycle Approach in Management and Production,: Kluwer Academic Publishers, 2001, pp: 1-12. [10] L. Horváth, I. J. Rudas, J. F. Bitó and G. Hancke, “Intelligent Computing for the Management of Changes in Industrial Engineering Modeling Processes,” in Computing and Informatics, Vol. 24, 2005, 1001–1013. [11] I. J. Rudas and L. Horváth, “Process Oriented Engineering Using Highly Integrated Adaptive Computer Descriptions,” in proc. of the 32 th Annual Conference of the IEEE Industrial Electronics Society, IECON 2006, Paris, France, 2006, pp. 3568-3573. [12] L. Horváth and I. J. Rudas, “Modeling and Problem Solving Methods for Engineers “, ISBN 0-12-602250-X, Elsevier, Academic Press, 2004, p. 330. [13] Ricardo Jardim-Goncalves, Nicolas Figay and Adolfo Steiger-Garcao, “Enabling interoperability of STEP Application Protocols at meta-data and knowledge level,” International Journal of Technology Management, Volume 36, Number 4, pp. 402 – 421, 2006. |