Software Reliability Engineering: A Roadmap
FOSE '07 2007 Future of Software Engineering
Dependable and Historic Computing
Cooperative component testing architecture in collaborating network environment
ATC'07 Proceedings of the 4th international conference on Autonomic and Trusted Computing
Proceedings of the 17th Conference on Pattern Languages of Programs
Component survivability at runtime for mission-critical distributed systems
The Journal of Supercomputing
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Although N-version programming has been employed in some mission-critical applications, the reliability and fault correlation issues remain a debatable topic in the research community. In this paper, we perform a comprehensive evaluation on our recent project data on N-version programming and present statistical investigations on coincident failures and correlated faults. Furthermore, we compare our project with NASA 4-University project to identify the "variants" and "invariants" with respect to failure rate, fault density, coincident failures, related faults, and reliability improvement for N-version programming. Our experimental results support fault tolerance as an effective software reliability engineering technique.