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This paper is focused on the management of virtual organizations (VO) inside healthcare environments where grid technology is used as middleware for a healthcare services-oriented architecture (HSOA). Some of the main tasks considered for the provision of an efficient VO management are management of users, assignation of roles to users, assignation of privileges to roles, and definition of resources...
The complexity of developing and deploying context-aware pervasive-computing applications calls for distributed software infrastructures that unobtrusively support to contextual data collecting, information sharing and security privacy controlling. In this paper, we motivate a human-centric design for such an infrastructure to support context-aware applications. A novel peer to peer based semantic...
As the Semantic Web has been applied in the Web Services to integrate data across different applications with the increasing development of the Semantic Web technologies, it is essential to maintain the security of the organizations involved in the Semantic Web Services. Security is a crucial concern for commercial and mission critical applications in Web-based environments. To guarantee the security...
The demands of sophisticated data communications have issued a new challenge to port logistics systems. Customers expect ports to handle their generated administrative data while a vessel is docked in a port. One port logistics system, known as the Vessel Clearance System (VCS), manages large numbers of documents related to the handling of containers. In the VCS system, information flows through many...
Described the basic framework of the agricultural information retrieval system based on ontology and analyzed the factors which affect the system reliability, then proposed many methods and contents of web testing about the functionality testing, performance testing and security testing.
Interactions among several Web services depicted by OWL-S need to be considered whether satisfying security when orchestration. So, a secure session based approach is presented to verify the consistency with those in specifications, such as WS-Trust and WS-SecureConversation. First of all, processes in orchestration requirements and web services are modeled by labeled Kripke transition systems to...
In order to solve the contradiction between information sharing and security privacy in the ubiquitous computing environment, a novel context policy management framework based on ontology is presented. The semantic specification of policy and dynamic policy implementation are described. And the usefulness and flexibility of our proposed framework are demonstrated by a typical ubiquitous computing...
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