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The Computer Journal Advance Access originally published online on March 10, 2006
The Computer Journal 2006 49(3):331-344; doi:10.1093/comjnl/bxl003
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© The Author 2006. Published by Oxford University Press on behalf of The British Computer Society. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Automated Unique Input Output Sequence Generation for Conformance Testing of FSMs

Karnig Derderian1,*, Robert M. Hierons1, Mark Harman2 and Qiang Guo3

1 Department of Information Systems and Computing, Brunel University Uxbridge, Middlesex UB8 3PH, UK
2 Department of Computer Science, King's College London London WC2R 2LS, UK
3 Department of Computer Science, University of Sheffield Sheffield S1 4DP, UK

*Corresponding author: karnig.derderian{at}brunel.ac.uk

This paper describes a method for automatically generating unique input output (UIO) sequences for FSM conformance testing. UIOs are used in conformance testing to verify the end state of a transition sequence. UIO sequence generation is represented as a search problem and genetic algorithms are used to search this space. Empirical evidence indicates that the proposed method yields considerably better (up to 62% better) results compared with random UIO sequence generation.

Key Words: Finite state machine • unique input output sequence • state verification • conformance testing • genetic algorithm


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