The World Wide Web encourages widely-distributed, open, decentralised systems that span multiple administrative domains. Recent research has turned to trust management [4] as a fr...
The perception-based theory of probabilistic reasoning which is outlined in this paper is not in the traditional spirit. Its principal aim is to lay the groundwork for a radical e...
Representation and reasoning about goals of an information system unavoidably involve the transformation of unclear stakeholder requirements into an instance of a goal model. If t...
Abstract: Group-oriented web information systems (GWISs) are web-based dataintensive systems that are used by a group of people in order to fulfill common tasks. In particular, th...
Klaus-Dieter Schewe, Bernhard Thalheim, Roland Kas...
Abstract—In distributed environments, access control decisions depend on statements of multiple agents rather than only one central trusted party. However, existing policy langua...