Information systems supporting business process are mostly very complex. If we have to ensure that certain business rules are enforced in a business process, it is often easier to ...
Kees M. van Hee, Jan Hidders, Geert-Jan Houben, Ja...
The Mobile Agent technology has already shown its advantages, but at the same time has already remarked new problems currently limiting its diffusion in commercial environments. A...
Paolo Bellavista, Antonio Corradi, Cesare Stefanel...
Abstract— We consider both the single-user and the multiuser power allocation problems in MIMO systems, where the receiver side has the perfect channel state information (CSI), a...
An access control system is often viewed as a state transition system. Given a set of access control policies, a general safety requirement in such a system is to determine whethe...
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...