2. 计算机
  3. Due to a constantly(66)environment, a poor understanding of the user’s needs and preferences, as well as a(67)of willingness to

Due to a constantly(66)environment, a poor understanding of the user’s needs and preferences, as well as a(67)of willingness to

admin2009-02-15  65
问题 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.
选项 A、gives
B、distinguishes
C、has
D、difference
答案B
解析 由于环境的不断发生变化，且对用户的需求理解不清，对现有的组织结构和决策模型的修改缺乏依据，WIS的巨大经济潜力还不被世人所认识到。在商业WIS软件开发过程中，eW3DT所提出的元模型的数据对象类型，为超文本设计师提供了一个概念的、以用户为中心的框架结构，以及为构造参考模型和个性化模型的图形标记。其中参考模型是一个代表典型企业的抽象的标准概念，它的功能和目的是使WIS系统的设计和开发成本呈线性下降。作为追求部分全球化策略的一个先决条件，eW3DT在为设计、实现和维护WIS中的技术和内容提供方面的作用是显著的。
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