【摘要】 产品BOM(Bill of Material)中结点可能在不同层次重复出现,传统的树形结构不便于表达这些结点之间的关系。作者在分析传统产品BOM树模型的局限性的基础上,研究了产品BOM的本质结构,提出了产品BOM赋权有向图通用模型,给出了其相应的关系数据库实现,研究了产品BOM赋权有向图模型的维护方法,讨论了基于企业实际的模型属性扩展,给出了其遍历和搜索的思想、相关算法以及编程语言实现方法,为PDM(Product Data Management)/CAPP(Computer Aided Process Planning)/CAD(Computer Aided Design)/MRPⅡ(Manufacturing Resource Plan)/CIMS(Computer Integrated Manufac-turing System)/ERP(Enterprise Resource Plan)系统集成提供了前提和基础。更多还原

【Abstract】 The nodes of BOM may appear repeatedly in the different layers. While the structure of traditional tree model can not express the relation between these nodes expediently. By analyzing the localization of tree model BOM, this paper studies the essential structure of BOM and puts forward the drected-gragh with weightings of BOM. Then it provides corresponding realization of relation database and studies the method of maintenance. It also discusses the expansion of attribute based on enterprise’ s requirement. Finally it provides the thinking of searching, relevant algorithm and the method of programming language realization. This kind of BOM offers foundation for the integration of information and data in PDM/CAPP/CIMS/ERP.更多还原