The challenges in web information systems development
Klaus‐Dieter Schewe · 2005
Abstract: The development of web information systems has led to new challenges regarding the scalability and expressiveness of methods. In particular, as systems be-come large, it becomes decisive to guarantee consistency and integrity of designs. The paper introduces the challenges in a step-by-step way and indicates how to cope with them. First, the conceptual model of a WIS as a collection of media types, i.e. extended views, is introduced. In this context the adaptivity to users, channels and devices will also be discussed. Secondly, WIS development is discussed on a higher level of abstraction dealing with tasks, roles, user profiles and storyboards. At this level equational reasoning can be applied. Finally, both levels of abstraction are com-bined leading to further challenges by using dynamic and deontic logics. 1