The Imposition of Protocols Over Open Distributed Systems
IEEE Transactions on Software Engineering
A Policy Language for the Management of Distributed Agents
AOSE '01 Revised Papers and Invited Contributions from the Second International Workshop on Agent-Oriented Software Engineering II
Policy-Based Mobile Ad Hoc Network Management
POLICY '04 Proceedings of the Fifth IEEE International Workshop on Policies for Distributed Systems and Networks
Scheduling and simulation: how to upgrade distributed systems
HOTOS'03 Proceedings of the 9th conference on Hot Topics in Operating Systems - Volume 9
Modular software upgrades for distributed systems
ECOOP'06 Proceedings of the 20th European conference on Object-Oriented Programming
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This paper addresses an important open problem confronting any decentralized and stateful access control (AC) mechanism for networked systems, particularly when the system at hand is large, heterogeneous and open. The problem, in a nutshell, is how to enable safe evolution of the policy that governs a given system, while that system continues to operate. This problem, and its solution, are addressed here in terms of the Law-Governed Interaction (LGI) mechanism, but the ideas underlying this paper should be broadly relevant to other decentralized and stateful control mechanisms, such as the use of distributed firewalls for the protection of distributed enterprise systems.