Policies are pervasive in web applications. They play crucial roles in enhancing security, privacy and usability of distributed services. There has been extensive research in the a...
Piero A. Bonatti, Claudiu Duma, Norbert E. Fuchs, ...
ions and concepts that let applications access and share resources and services across distributed, wide area networks, while providing common security semantics, distributed resou...
Ian T. Foster, Carl Kesselman, Jeffrey M. Nick, St...
Grid Workflows are emerging as practical programming models for solving large e-scientific problems on the Grid. However, it is typically assumed that the workflow components eith...
Abstract. Web services are increasingly used for building enterprise information systems according to the Service Oriented Architecture (Soa) paradigm. We propose in this paper a t...
As Web sites are now ordinary products, it is necessary to explicit the notion of quality of a Web site. The quality of a site may be linked to the easiness of accessibility and a...