Considering development of internet and ec ( electronic commerce ) , the article discussed the conversion from bom and product structure to xml document automatically , which offers data joins for further development 考虑到因特网和电子商务的需求及发展趋势，本文的工作还包括bom表和产品结构树向xml文档的自动转化，为企业今后的发展提供了数据源上的接口。
Pcad model covers whole product design process , and it is developed by using the blackboard - based technology to combine the design matrix , function - means tree , product tree , idef3 model and third - party software tools Pcad模型覆盖了整个产品设计过程，有助于繁杂问题的处理及跨平台和分布式的运用。 pcad模型由五个核心模块组成:设计矩阵、功能方法树、产品结构树、 idef3 、设计数据模型。
4 . proposes a new method in powerbuilder through its treeview and datawindow controls based on accomplished materiel coding and established database . this method could automatically establish product structure tree and produce bom table in required format 4 、本论文还具体介绍了一种利用已有的物料编码和创建好的数据库，在powerbuilder中创建产品结构树和bom表，并实现bom表的自动配置的具体方法。
This paper makes researches on pdm ' s kernel function - pcm ( product configuration management ) under the conditions of autocad and low - price dbms witch could be acceptable in our middle or small factories . this paper mainly discusses the recursive query algorithm based on general database witch is offered in oracle , the problem of the automatic bom maker for autocad and conversion from bom to product structure trees . thus the data of autocad files could go into erp ( enterprise resource plan ) 本文从pdm理念出发，在我国中小企业普遍能接受的autocad和低价位数据库管理系统的平台条件下，对pdm的核心技术模块pcm (产品结构管理)的实现进行了研究，重点解决了在一般数据库中实现数据库系统oracle中具备的递归查询算法， autocad环境下bom表的自动生成技术，以及bom表向产品结构树的转化问题，从而使cad数据通过bom表的桥梁作用进入erp (企业资源计划)系统。
In the second chapter , under the characters and requirements of mc - oriented product structure management , a product function module which is based on module technology is presented ; the characters of bom under the basis of mc is analyzed ; bom is divided to assemble - product - bom and function - structure - bom based on the stratum ; the tree structure model is revised and a net structure model is introduced ; the realization of the tree structure is discussed in the end . in the third chapter , the shorts of the available reusing technology of the manufacturing process are analyzed at first 第二章根据大批量定制条件下产品结构管理的要求和特点，提出了基于组件技术的产品功能模块技术；分析了大批量定制条件下bom的特点，按照订单生产和多项目管理的特点，将bom按层次划分为组合产品bom和功能结构bom ；改进和提升了已有的树状结构模型，引入了部分网状模型；最后讨论了大批量定制条件下产品结构树的实现和产品结构的后续增补。
At last , according to the characteristic of report generator in tribon , we established the product structure managing system , studied the algorithm for the generation of the product structure tree and generated the visual product structure tree , and have an eye on the management of bom , taking accout of the correctness of the information of bom , we adopted the method of from top to bottom or from bottom to top to provide information ; and designed 6 bom to accomplish the function 最后，根据tribon系统中报表生成器的特点，建立了产品结构管理系统，研究了产品结构树生成的算法，生成了可视化产品结构树。并对产品物料清单bom的管理进行了研究，考虑到bom信息的准确性，采用了bom以自顶向下分解的形式或是以自底向上跟踪的形式提供信息；并设计了物料清单bom的六种形式来实现其功能。
2 . dynamically organizing cad graphics information taking the product structure tree as data structure , which links assembly information and geometry information ) the gathering agent can automatically converts assembled relationship into hyperlink relationship of vrml files , so the system could implement a strategy of integrated and visualized sharing approach based on the web - based visualized product structure tree . 3 产品cad图形信息的动态组织建立以产品结构树为中心的数据组织结构，通过采集agent自动地将产品的装配关系转化为相关零部件vrml文件间的超链接关系，使系统能以“可视化结构树”的形式进行有效地产品cad图形信息发布。
The important model of pdm is the model of product structure management and the model of product configure management . they has been researched deeply in this article . the connection between each sort of data object associating with the product data and product configure has been analyzed 深入研究了pdm中最为重要的产品结构和配置管理功能模块，分析了与产品结构和配置有关的各种数据对象间的关系，阐述了产品结构树建立的技术依据和思想，并给出了实现方法；研究了产品结构的多视图管理，给出了基于各种配置规则的配置模型及实现方法。
