| Bill of materials is a key point in the enterprise informationization. BOM which is the base data of material requirements planning, product data management and product configuration design is a key part of the apply of those technology. The paper researches the status quo of BOM, affirms the hypostasis of BOM's concept, analyse the translate from design BOM to manufacturing BOM and stock BOM in detail. The paper does a resarch on the transform from design BOM to manufacturing BOM and stock BOM in the apply on the plastic injection molding machine, establishes the configurantion model of plastic injection molding machine and invert model of the BOM. And done a real case in the enterprise based on the mothod and got a perfect result.Charpte one summaries the development history and stats quo of PDM,BOM and product configuration. It has do a research on the technolgy of BOM in detail. It has affirmed the hypostasis of BOM's concept, sorts the BOM by the range of information, narrow sense BOM, broad sense BOM and expand BOM, analyse the default of those BOM in practice. It has summaried the usual skills of the BOM in the practical. It has summaried the question which will occur in the BOM maintenance, the relationship between other data, the real problem in the practice. At last it has given the framework of this paper.Chapter two constructs the construction of the BOM of the plastic ejection molding machine based on the function and constrcution of plastic injection molding machine, and then introduce the characteristic of plastic injection molding machine and how it works and summaries the configure feature of the plastic injection molding machine in the management and manufacture according to the feature of the enterprise. Analyzing the export form of the BOM. The arithmetic how to construct the BOM is given based on this model, and then campare it with the erative arithmetic.Chapter three constructs a configurable model of plastic injection...
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