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An Agent Mediated Approach
To Dynamic Change in Coordination Policies
August 2000
Mark G. Matthews, The MITRE Corporation
Prasanta Bose, George Mason University
ABSTRACT
Distributed information systems for decision-support, logistics,
and e-commerce involve coordination of autonomous information
resources and clients according to specific domain independent
and domain dependent policies. A major challenge is handling
dynamic changes in the priorities, preferences, and constraints
of the clients and/or the resources. Addressing such a challenge
requires solutions to two problems: a) Reasoning about the need
for dynamic changes to coordination policies in response to
changes in priorities, preferences, and constraints. b)
Coordinating the run-time assembly of policy changes in a
dependable manner. This paper introduces the NAVCo approach
to address these problems. The approach involves exploiting
negotiation-based coordination to address the first problem and
model-based change coordination to address the second
problem. These two key features of the approach are well suited
for realization using an agent-based architecture. The paper
describes the architecture with specific emphasis on the
analysis and design of the agent specifications for negotiation
and change coordination.
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