Titlebook: Dependable Computing for Critical Applications 3; Carl E. Landwehr,Brian Randell,Luca Simoncini Conference proceedings 1993 Springer-Verla

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Design for Dependability. The verification comprises a number of compositional proofs. It addresses safety and liveness properties of the design. As an example, a “cold stand by spare” fault tolerant design is formally defined and verified, using property oriented specifications of component failure assumptions and the com

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Tracing Fault Tolerance The set of normal and exceptional behaviours can be considered the set of . behaviours. In this report traces, or communication histories, are used to denote the behaviour of a process. The semantic function ?[.] defines the set of possible communication sequences that can be observed up to any poi

OATH

Evaluation of Fault-Tolerant Software: A Performability Modeling Approachcorresponding stochastic process model is constructed by employing a hierarchical modeling framework. Comparison is based on a performability measure that quantifies software “effectiveness” in a designated operational environment. The evaluation results reveal some interesting differences between t

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A “Strongly-Fail-Safe Majority Voted Output” Circuit used for Designing Dependable Computer Systemsors of the electromechanical part is realized with fail-safe circuits. But these give us to the following problems:.This paper aims to provide a practical solution using “strongly-fail-safe” circuit for designing dependable computer systems aimed at critical processes. The goal is to make use of suc

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Dependable Computing for Railway Control Systemseral requirements are outlined and basic principles and adopted techniques for dependability are shown; hardware and software vital architecture are described. Then some details about application special features are given, in order to present a suitable software verification and validation environm

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