Lookup NU author(s): Dr Elena Troubitsyna,
Dr Alexei Iliasov,
Professor Alexander Romanovsky
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Mobile agent systems often require sophisticated cooperation and coordination during error detection and recovery. In this paper we propose novel fault tolerance mechanisms that support co-operative exception handling in such systems. The paper demonstrates how mechanisms like these can be formally developed and analysed. We start with identifying the typical modes of failures in agents and analysing possible failure and recovery scenarios in mobile systems. Stepwise refinement is used as our formal framework for top-down development and verification. Using the framework we formally verify the essential model properties, such as interoperability, local and global state consistency and termination of error recovery. Our approach provides developers with formal generic patterns for incorporating fault-tolerance mechanisms into mobile agent systems. We also demonstrate how the results of our formal development can be instantiated and reused in developing real-world agent software. Copyright 2008 ACM.
Author(s): Laibinis L, Troubitsyna E, Iliasov A, Romanovsky A
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Proceedings of the 2008 RISE/EFTS Joint International Workshop on Software Engineering for Resilient Systems (SERENE)
Year of Conference: 2008
Publisher: ACM Press
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