The success of role-based access control both within the research community and industry is undeniable. One of the main reasons for RBAC's adoption is its ability to reduce administration costs, help eliminate errors, and improve the security of a system. Before these advantages can be observed,...

In this information age, data and knowledge extracted by data mining techniques represent a key asset driving research, innovation, and policy-making activities. Many agencies and organizations have recognized the need of accelerating such trends and are therefore willing to release the data...

Collaborative and distributed applications, such as dynamic coalitions and virtualized grid computing, often require integrating access control policies of collaborating parties. Such an integration must be able to support complex authorization specifications and the fine-grained integration...

Collaborative and distributed applications, such as dynamic coalitions and virtualized grid computing, often require integrating access control policies of collaborating parties. Such an integration must be able to support complex authorization specifications and the fine-grained integration...

With the advances in web service techniques, new collaborative applications have emerged like supply chain arrangements and coalition in government agencies. In such applications, the collaborating parties are responsible for managing and protecting resources entrusted to them. Access control...

As distributed collaborative applications and architectures are adopting policy-based solutions for tasks such as access control, network security and data privacy, the management and consolidation of a large number of policies is becoming a crucial component of such solutions. In large-scale...

As distributed collaborative applications and architectures are adopting policy-based solutions for tasks such as access control, network security and data privacy, the management and consolidation of a large number of policies is becoming a crucial component of such solutions. In large-scale...