摘要： 元数据是数据仓库项目取得成功的关键因素之一，而元数据标准又是成功管理元数据的关键。该文介绍了数据仓库中元数据的意义，分析了公共仓库元模型(CWM)这一元数据标准，以及它与开放信息模型(OIM)的关系，最后讨论了CWM标准在实际开发工作中的作用。

关键词: 数据仓库, 元数据, CWM

Abstract: Metadata is one of the key points in data warehouse projects，while the standard of metadata is essential in managing metadata. This paper introduces the role of metadata playing for datawarehousing，analyses the common warehouse model(CWM),and the relationship between this standard and the open information model(OIM).At the end of the paper, the role of the CWM in development work is discussed.

中图分类号: 

• TP311.13