The Research And Application Of Enterprise Modeling In CIMS

As a kind of supporting technology of CIMS, PDM has been applied in, more and more enterprises. Many enterprises have implemented PDM, and many other enterprises are going to introduce PDM too. All of them expect to manage a great deal of enterprises data efficiently and safely, realize the integration of enterprises information, improve management level, shorten the period of product design and manufacturing, reduce the cost of products and simplify the structures of products.PDM implementation is a long-term, complicated and systematic project, and the structure and function of enterprises are very complicated. In order to reduce the risk of PDM implementation, engineers must be guided by scientific implementation methodology. Enterprise modeling is the base to objectively analyze the requirement and workflow of enterprise and to reform the enterprise workflow correctly. The means of enterprise modeling and the ability of model description are mainly discussed in this paper. After analyzing the workflow and data of enterprise, this paper established the functional model and information model that had already been optimized. All these research work is based on the PDM system of the design department of colliery machine industry. Object-oriented IDEF is applied originally in the design department of colliery machinery industry. The integration framework of group technology, CAD, CAPP, PDM and ERP is put forward based on these models for the first time.The main work is that this paper introduces firstly the modeling framework of the design system of colliery machinery industry based on the Object-oriented idea, that is to consider and optimize the functional structure and information of the system from the viewpoint ofObject-Oriented, and to consider the running statuses of control information from the viewpoint of concurrent the workflows of product design and manufacture. All these are in order to share efficiently design and manufacturing information in the whole enterprise and improve information utility and get rid of unreasonable workflows. Based on the PDM project of design department, Zhangjiakou Colliery Machinery Company ( ZMJ) , we established the functional and information models for the Technique Center using Object-oriented IDEF and put these models into practice. By comparing the extent of information shared before and after PDM implementation, we accomplished the demonstration validation of functional model and information model.Another work is that this paper introduces firstly colliery machinery industry's integration framework of CAD/CAPP/PDM/ERP based on group technology and pointing out that product coding scheme based on group technology is the key to realize the integration of CAD/CAPP/PDM/ERP. We also put forward a coding scheme of components and parts of ZMJ's products, which fully consider the practical situation of ZMJ and the request of integration of CAD, CAPP, PDM and ERP.