单选题 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 Systems 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.