With the continuous deepening of enterprise information technology, many companies have product data management (PDM, ProductDataManagement) system as a product engineering, information management and integration platform, unified storage and management of product design, process and resource information. This information is the enterprise resource planning (ERP, Enterprise Resource Plan-ning) system, running on the work of an important input. Between PDM and ERP system, there are a lot of information sharing phenomenon exists. Therefore, PDM and theERPSystems to achieve information integration, not only make the product design and manufacturing process more smoothly, but also to avoid duplication of information input which may bring about errors, accurate transmission of information to promote enterprise-wide design and manufacturing departments work together. Between PDM and ERP systems integration is a necessary enterprise information application requirements.
PDM ERP systems and the need for integrated information including product information, process information and resource information and so on. However, two integrated information systems are often in different structures, different semantics of the performance and storage, and therefore can not be directly identified the other side read, information integration must be the appropriate conversion to complete.
Production in the manufacturing operation and management of enterprises, usually in the materials list (BOM, Bill ofMaterials) forms of expression of the product design information, manufacturing information and a variety of management information. PDM and ERP systems need to integrate a lot of information is also present in the BOM in. In this paper, BOM as the information carriers, research PDM and ERP systems for information integration mechanism, proposes a transformation-based PDM and ERP integration method of information between systems. A commonly used method of information sharing to achieve
At present, PDM and ERP systems integration of the more popular methods are mainly three kinds, namely, interface type, direct access to databases and indirect. This, however, three kinds of integration methods can not meet between PDM and ERP systems for different structural and semantic information integration needs.
In order to ensure the entire process from design to production data consistency, documentation, engineering change processes using PDM technology, proposed a set of data released by the workflow, from middleware to transfer data to ERP system integration approach. Literature by establishing a common view and functional view, defining the product information, integrated information model, and proposed an integrated information model based on the PDM and ERP integration method.
At present, PDM and ERP system integration of the study, more concerned about the synergies between the two systems of information transmission and drive, while the lack of integration between heterogeneous information content semantics harmonization of norms and conversion. If you need to integrate semantic information of different phenomena, even if the realization of the PDM to the ERP system, messaging, integrated information is also very difficult to be directly used. Therefore, PDM and ERP systems are integrated information must complete the conversion and semantic unity.
BOM is the integration of PDM and ERP systems are an important carrier of information, it is a tree hierarchy, the performance of the product structure, product configuration status, inventory status and other product-related information, which together constitute the connection product design and production and operation management of the bridge.
According to the different load of information, BOM information can be divided into the design BOM (EBOM, Engineering BOM), process BOM (PPBOM, Process Planning BOM) and manufacturing BOM (MBOM, Manufacturing BOM) and other types, namely, design department, technology department and production manufacturing sector organization and management of information, MBOM is an important input ERP operations. Application system, BOM information, two kinds of common storage method is a single-layer structure, notation and representation of multi-layer structure. Single layer BOM structure, the "single parent - list" data structure, and clearly defines the product structure, easy-to-counter-check parts, but the BOM decomposition efficiency is low. Multi-layer BOM structure, the "single parent - more than child" of the data structure, recorded in detail to the components from the product at each level of the relationship between the structure and components configuration information. This method is the decomposition rate of fast, easy to maintain, but the data redundancy degree, the product structure definition is not clear, spare parts can not be counter-check.
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