This paper first introduces the concepts of data warehouse and problems of access security. It then introduces a tax data warehouse, focusing on the measures taken to ensure security of access to it.

本文首先介绍了一些数据仓库的概念与访问安全方面的问题，然后重点介绍了我们建立的税务数据仓库在访问方面采取的安全措施。

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Several issues related with Tax decision making are studied and applied, including data warehouse(DW), online analyses and processing (OLAP) and data mining (DM).

笔者对涉及到税务支持的几个关键问题进行了理论探讨和实际应用，包括数据仓库（DW）的建立和组织、联机分析（OLAP）和数据挖掘（DM）。

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We must know more things about the tax operation, and reinforce the more topic of the data warehouse. At the end of paper, the future of DW in tax department is introduced.

数据仓库的建立是一个不断完善的过程，在论文的最后对国税数据仓库系统的未来提出了展望。

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