按照认知学规律，逐步构建出了一个统一产品结构数据模型，将产品全生命周期数据组织在一起，实现了产品数据的一致性和共享性。
According to the cognition, a unified product structure data model is established step by step which organizes the life cycle data together. Thus the data is unitive and can be Shared.
产品结构与配置管理是PDM 系统的重要组成部分，横跨整个产品生命周期，主要负责产品数据组织与管理。
Product structure and configuration management is an important part of PDM system, which bestrides all the product lifecycle with responsibility for product data organization and management.
构建了结构与配置管理的一般数据库模型：并且提出了动态产品结构与配置管理的设计模型。
It builds a general database model of configuration management, and builds a dynamic product structure and configuration management model.
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