产品全生命周期信息模型研究

为了建立完整、可重用、高度一致的产品全生命周期信息模型，提出了一种产品全生命周期模型的体系框架。该框架由面向产品生命周期的过程模型、扩展企业资源模型和产品信息模型组成。重点对组成产品生命周期的需求分析阶段、概念设计阶段、工程设计阶段、产品制造阶段及产品支持服务阶段各模型的组成、表达及其各阶段模型的演化过程进行了研究。在此基础上，提出了基于应用层、服务层和数据层的3层信息体系结构的产品全生命周期信息集成框架，支持网络环境中产品数据分布式互操作。

Research on information model for product lifecycle

To build a complete, reusable and highly consistent product lifecycle information model, an integrated system framework of product lifecycle model was proposed. The proposed framework consisted of three parts: process model oriented to product lifecycle, extended enterprise resource model and product information model. .The composition, representation and evolvement of product models at different stages of requirement analysis, conceptual design, engineering design, product manufacturing and service support in product lifecycle were discussed in particular. Finally, an integrated information architecture of three-tier (application tier, service tier and data tier) based on product lifecycle was proposed to support distributed interoperability of product data sources.