The Study Of PDM System In Garment Based On Web

With the development of the computer science, network technology and advanced manufacturing technology, many "intelligent island" in garment manufacturing system such as computer aided design and computer aided manufacturing and intelligent conveyor of clothing have been established. Those "intelligent island", which have promoted the production efficiency, now become the "information island" due to the lacking of product data management. The product information among the product design, process planning and manufacturing system can't be transferred and exchanged automatically, which leads to the enterprise resources and information can't be shared effectively."Intelligent island" was converted to intelligent nodes in this paper. Information integrated technology of intelligent nodes was researched, and the conclusion is that integrated technology based on the PDM maybe the best way to integration of intelligent nodes. The PDM system in garment enterprise based on Web is created with the detailed analyzing of functional requirement and network computation mode. Some functions of PDM system were realized. The PDM system frame construction in clothing based on C/S and B/S mode and technology of database access in this mode can be finished; then technology of building model of object-oriented in clothing PDM model are also researched.First, the definition, structure and function of intelligent nodes were discussed. One intelligent node should consist of three parts, problem solving x information conversion and network communication. Based on this structure, intelligent units with the special problem solving function in manufacturing system can be converted to intelligent nodes after intelligent units are enclosed by information conversion and network communication. In fact, this is integrated technology of "intelligent island" in manufacturing system. Then, information integrated technology of intelligent nodes is discussed, and the conclusion is that integrated technology based on the PDM maybe the best way.After analyzing merit and shortcoming of network mode of C/S and B/S, construct the PDM system frame which augmentability and maintainability are better based on C/S and B/S mode in clothing. The inner customers (such as design department) which need access professional software use C/S mode, others inner customers and outer customers use B/S mode. All customers use unitized browse interface. Analyzing andcomparing technologies of database access in this mode, and the conclusion is that database access based on JSP/Servlet maybe is better way. The PDM system frame construction in clothing based on C/S and B/S mode using technology of database access is created.PDM in clothing is one system with complex structuring and integration. The information objects in this system are complex and huge, including files and documents, human resources, product data and structure, workflow, etc. Those objects are not dependant. Change of one object may influence another change. Analysis to the hole system and formalized expression of complex object are the key in modeling. Technology of object-oriented analysis and design can detail describe attribute and method of object, define relation of class and subclass layer by layer, which will simple the system complex and the description to complex model. After this, object model of the PDM system based on technology of object-oriented is created.Those researches are important to manufacturing system in clothing that needs the fast responding and shared information.