At last, the author propose a three-tier model of knowledge warehouse architecture.

最后，提出了一个三层的知识仓库体系结构模型。

youdao

Secondly, it designs architecture of a Data Warehouse used in telecommunication field and introduces related Data Warehouse knowledge.

随后设计了一个应用于电信领域的数据仓库系统结构并介绍了相关的数据仓库知识；

youdao