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Issue No. 06 - November/December (2008 vol. 34)
ISSN: 0098-5589
pp: 753-764
Meine J.P. van der Meulen , Det Norske Veritas, Høvik
Miguel A. Revilla , University of Valladolid, Valladolid
In this paper, we first present an exploratory analysis of the aspects of multiple-version software diversity using 36,123, programs written to the same specification. We do so within the framework of the theories of Eckhardt & Lee and Littlewood & Miller. We analyse programming faults made, explore failure regions and difficulty functions, show how effective 1-out-of-2 diversity is and how language diversity increases this effectiveness. The second part of the paper generalizes the findings about 1-out-of-2 diveristity, and its special case language diversity by performing statistical analyses of 89,402 programs written to 60 specifications. Most observations in the exploratory analysis are confirmed; however, although the benefit of language diversity can be observed, its effectiveness appears to be low.
Programming Techniques, Protection mechanisms, Design concepts, Quality analysis and evaluation, Software and System Safety, Reliability, Reliability, Performance measures

M. A. Revilla and M. J. van der Meulen, "The Effectiveness of Software Diversity in a Large Population of Programs," in IEEE Transactions on Software Engineering, vol. 34, no. , pp. 753-764, 2008.
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