企业数据仓库中元数据集成体系结构的研究

ON METADATA INTEGRATION ARCHITECTURE IN ENTERPRISE DATA WAREHOUSE

随着数据仓库的数据质量问题越来越引起重视,更进一步让人们认识到了元数据管理的重要性。元数据集成体系结构是一个技术的、实现元数据管理策略的系统体系结构。在中国太平洋保险公司(CPIC)建设企业数据仓库(EDW)的项目背景下对企业数据仓库中的元数据集成体系结构作了研究。首先对三种元数据集成体系结构作了介绍,然后阐述了采用联邦体系的CPICEDW元数据集成规划,并用文档服务器作为全局元数据仓储的替代解决方案进行了元数据集成实施,最终阐明了现阶段企业数据仓库应该采用联邦元数据体系结构。

With increasing attention being focused on data quality issues in enterprise data warehouse （ EDW）, the importance of metadata management is further realised by more people. Metadata integration architecture is a technical system architecture to achieve metadata management strategy. In this paper, we researched on the metadata integration architecture of EDW with the background of building an enterprise data warehouse project for China Pacific Insurance Company （CPIC）. First, three metadata integration architectures were introduced, and then we expounded the integrated planning of CPIC EDW metadata which adopts federal system, and used the file servers as the substituted solution scheme for global metadata warehousing to implement the metadata integration ,finally we dwelt on the necessity of adopting federal metadata architecture system for enterprise data warehouse at this stage.