: In this paper the problem of educational resource management in a cooperative learning environment is discussed. A task model was elaborated to determine both functional and leve...
Peer-to-Peer (P2P) applications and services are very common in today’s computing. The popularity of the P2P paradigm prompts the need for specialized security services which ma...
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
The research here presented focuses upon the informal, social, and cultural side of managerial coordination and control as manifested in clinical e-health systems. Specifically, t...
This paper presents ongoing research and current results on the development of flexible access control infrastructures for complex resource provisioning in Grid-based collaborativ...
Yuri Demchenko, Leon Gommans, Cees de Laat, Arie T...