Based on the theory of software engineering, the online learning system is analyzed and designed, the framework model is established, and the flow chart of online testing system is analyzed.

依照软件工程中软件开发的相关理论对系统进行了分析和设计，建立了系统的层次框架模型，分析了在线测试系统的流程图。

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Then the technical theory of DW is expounded, the methods of DW system's design and its software developing are discussed. Meanwhile, a new framework of DSS is presented.

接着阐述了数据仓库技术理论，探讨了决策支持系统中数据仓库层的设计方法和软件开发方法，并提出了一种新的多维数据的建模方法。

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