UML叫做统一的建模语言，它把Booch、Rumbaugh和Jacobson等各自独立的OOA和OOD方法中最优秀的特色组合成一个统一的方法。UML允许软件工程师使用由一组语法的语义的实用的规则支配的符号来表示分析模型。在UML中用5种不同的视图来表示一个系统，这些视图从不同的侧面描述系统。每一个视图由一组图形来定义。这些视图概述如下：

 (36)用使用实例(use case)来建立模型，并用它来描述来自终端用户方面的可用的场景。

 (37)对静态结构(类、对象和关系)模型化。

 (38)描述了在用户模型视图和结构模型视图中所描述的各种结构元素之间的交互和协作。

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(73)

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Due to a constantly(66) environment, a poor understanding of the user's needs and preferences, as well as a(67) of willingness to modify.(68) organizational structures and decision models, the full economic potential of Web Information Systems (WIS) has not been realized by now. The data object types of the(69) meta. model, the Extended World Wide Web Design Technique (eW3DT), provide hypertext designers(70) a conceptual, user-centric framework and graphical notation for the construction of both,(71) and customized models, during the software development(72) of commercial WIS. A reference model as a normative concept represents an abstraction of a(73) company, its functional units, or its Web Information System and is intended to streamline the design and implementation of complex applications at(74) costs. As precondition for pursuing a partial globalization strategy,eW3DT(75) between technical and content-specific responsibilities for designing, implementing, and maintaining WIS.