数据仓库元数据集成技术研究与应用

摘要

元数据集成是数据仓库元数据管理的一项重要内容.文章在目前元数据集成研究成果的基础上,提出了一种基于SOA架构的数据仓库元数据集成技术.该技术以Web Service技术为应用框架,以CWM为元数据模型,采用XML设计元数据封装器,实现了分布环境下数据仓库元数据的集成与重用.文章重点介绍了系统的体系构架,及CWM元数据模型的结构设计和不同Web Service方法设计和调用.最后,将该技术应用到消防工程领域的一个实际数据仓库项目中,验证了该技术的可行性、有效性、实用性.%Metadata integration is an important issue in metadata management. It presents a metadata integration strategy based on SOA architecture for data warehouses. In this strategy, Web Service is adopted as application frame; Metadata is modeled by CWM and metadata encapsulation is designed in XML. The metadata from distributed data warehouses has been efficiently integrated and reused. It focuses on the architecture of the system, the structure design of CWM, as well as various Web Service methods creation and call. Finally, verify the feasibility,effectiveness and practicability of this solutions by experiment.