Healthcare is an increasingly collaborative enterprise involving many individuals and organizations that coordinate their efforts toward promoting quality and efficient delivery of healthcare. To these ends, today, more than any other point in time, increased reliance is being placed on...

Trust negotiation is a promising approach for establishing trust in open systems, in which sensitive interactions may often occur between entities with no prior knowledge of each other. Although, to date several trust negotiation systems have been proposed, none of them fully address the problem...

"A Grid authorization model for science gateways," Proceedings of the Grid Computing Environments (GCE) workshop. Held at the Reno Convention Center: Reno, Nevada: 11-12 November 2007.