| Product Data Management (PDM) is the infrastructural information platform of manufacturing enterprises, which can relate kinds of information systems together to optimize and reform the research and development of products. Bill of Material (BOM) which is the important object managed in PDM, and plays a key role in integration of enterprise information systems. Therefore BOM is the important content in enterprise informationalization.Taking national 863 program and several engineering application projects for examples, this thesis researches into the management technologies of BOM based on PDM. In modeling and managing BOM information, several kinds of UML diagrams for modeling BOM is provided; the technology of using RDBMS and XML to store and iterate BOM data is established; the coding of BOM line and item revision in PDM are ruled, and the management in tree structure of BOM are realized. In the multi-view management of BOM, the transformation technology of BOM views, including sharing BOM data and extending BOM properties, and reforming the structure of BOM according to different storage modes, is established by analyzing the differences of BOM views; the release process and change process of BOM are defined and the relative authorization strategies are instituted, and the integration technologies of information systems based on the transformation of BOM views, including system encapsulation, database share, and storage with intermediate file and network transmission are established. In the configuration management of BOM, the methodologies of revision-based BOM configuration and variant-based BOM configuration are built on PDM platform, and the application of object-oriented thinking is realized in BOM configuration.In virtue of the above methodologies and technologies, the BOM management systems are developed based on Teamcenter Engineering PDM product, and successfully implemented in automobile manufacturing and aerospace enterprises. |
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