Titlebook: Web Information Systems and Technologies; 5th International Co José Cordeiro,Joaquim Filipe Conference proceedings 2010 Springer-Verlag Ber

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The RDF Protune Policy Editor: Enabling Users to Protect Data in the Semantic Webmbed them into a user interface that enables users to specify powerful access policies and makes them aware of the current and future consequences of their policies. In a user study, we proof the effectiveness of our editor.

Barrister

Making the Invisible Visible: Design Guidelines for Supporting Social Awareness in Distributed Collan and within groups. Based on this, . for awareness support in distributed collaboration—with an emphasis on promoting .—are proposed and evaluated empirically. Results show that users awareness was influenced positively as predicted by the design guidelines.

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Modelling the B2C Marketplace: Evaluation of a Reputation Metric for e-Commerceviours in the marketplace. The trustworthiness of different types of providers is investigated to establish whether the simulation models behaviour of B2C e-Commerce systems as they are expected to behave in real life.

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