单项选择题
Due to a constantly () environment, a poor understanding of the user’s needs and preferences, as well as a () of willingness to modify () 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 () meta model, the Extended World Wide Web Design Technique (eW3DT), provide hypertext designers () a conceptual, user-centric framework and graphical notation for the construction of both, () and customized models, during the software development () of commercial WIS. A reference model as a normative concept represents an abstraction of a () company, its functional units, or its (Web) Information System and is intended to streamline the design and implementation of complex applications at () costs. As precondition for pursuing a partial globalization strategy, eW3DT () between technical and content-specific responsibilities for designing, implementing, and maintaining WIS.
to modify () organizational structures and decision models.
A.Existing B.the C.fact D.Company
单项选择题 (4)处应选择()
单项选择题 有多种实现防火墙的技术,如包过滤、代理服务器、双穴主机和屏蔽子网网关等,相对来说()功能较弱但实现也较简单。