Extensible systems, such as Java or the SPIN extensible operating system, allow for units of code, or extensions, to be added to a running system in almost arbitrary fashion. Exte...
Abstract. We present a modelling language, called X-Policy, for webbased collaborative systems with dynamic access control policies. The access to resources in these systems depend...
In defining large, complex access control policies, one would like to compose sub-policies, perhaps authored by different organizations, into a single global policy. Existing po...
The agent paradigm includes the notion that agents interact with services. This paper identifies the need for controlled access to such services, from the perspective of agent sys...
Benno J. Overeinder, P. D. Verkaik, Frances M. T. ...