Browse by author
Lookup NU author(s): Dr Elena Troubitsyna, Dr Alexei Iliasov, Emeritus Professor Alexander RomanovskyORCiD
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.
Author(s): Laibinis L, Troubitsyna E, Iliasov A, Romanovsky A
Publication type: Report
Publication status: Published
Series Title: School of Computing Science Technical Report Series
Year: 2008
Pages: 13
Print publication date: 01/10/2008
Source Publication Date: October 2008
Report Number: 1123
Institution: School of Computing Science, University of Newcastle upon Tyne
Place Published: Newcastle upon Tyne
URL: http://www.cs.ncl.ac.uk/publications/trs/papers/1123.pdf
