产品数据管理系统中PPOR模型研究与实践

面对数量和体积急剧增长的产品设计信息,企业必须加强产品数据信息管理.尽管从不同的产品数据管理的观点看,有不同的产品数据管理系统,但仍然有一些基本特性是一致的,总结并提出了产品数据管理应当满足的几项原理.PDM(Product Data Management)内涵是集成并管理与产品有关的信息与过程,因此对产品数据管理中的数据管理模型的研究是实现产品数据管理系统的关键步骤.PPOR模型分别是指产品(Product)管理模型、过程(Process)数据管理模型、组织(Organization)管理模型和资源(Resource)管理模型,各模型之间相互关联,构成了产品信息管理的框架.这些模型都用EXPRESS-G语言描述,并且按此实现了基于STEP标准的原型系统.

Research and Practice of PPOR Model of Product Data Management System

Due to sharply increase on quantity and volume of product data in product design processes,enterprise must improve management on those product data. In spite of depend on different point of view of product data management,various product data management system is developed,but still some basic characteristics they have is similar,it is proposed that several principles would be satisfied in developing product data management system. Because PDM (Product Data Management) is to integrate and management data information which relate developing product,it is crucial to studying the model of information management in PDM for realizing a PDM system. This paper proposes PPOR model,respectively reference product information management model,process information management model,organization information management model and resource information management model. These models correlate each other. They are all described by EXPRESS G language,and applied in a prototype system based on STEP.