| Coordination of View Maintenance
Policy Adaption Decisions: A Negotiation-Based Reasoning Approach
March 2000
Mark G. Matthews, The MITRE Corporation
Prasanta Bose, George Mason University
ABSTRACT
In mission critical applications of distributed information systems, autonomous information resources are coordinated to meet the information
demands of client specific decision-support views. A major challenge
is handling dynamic changes in QoS constraints of the clients and/or
changes in QoS properties of the resources. This paper presents a negotiation-based
adaptive view coordination approach to address such run-time changes.
The three key ideas are as follows. a) A negotiation-based reasoning
model for adapting view maintenance policies to meet changes in QoS
needs and context constraints. b) A dynamic software architecture of
the collaborating information resources supporting the client task of
maintaining a specific view. c) Coordination mechanisms in the architecture
that realize negotiated changes in the policies for view maintenance.
The paper describes an initial prototype of the support system for the
supply-chain task domain.
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