Characterization and evaluation of standby in reliability
Proceedings of the First Workshop on DYnamic Aspects in DEpendability Models for Fault-Tolerant Systems
Evaluating wireless sensor node longevity through Markovian techniques
Computer Networks: The International Journal of Computer and Telecommunications Networking
Reliability of standby systems
ICIC'11 Proceedings of the 7th international conference on Intelligent Computing: bio-inspired computing and applications
Dynamic aspects and behaviors of complex systems in performance and reliability assessment
ACM SIGMETRICS Performance Evaluation Review
A combined structural and dynamic modelling approach for dependability analysis in smart grid
Proceedings of the 28th Annual ACM Symposium on Applied Computing
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Dependability evaluation is an important step in designing and analyzing (critical) systems. Introducing control and/or computing devices to automate processes increases the system complexity with an impact on the overall dependability. This occurs as a consequence of interferences and similar effects that can not be adequately managed through reliability block diagrams (RBD), fault trees (FT) and reliability graphs (RG), since the statistical independence assumption is not satisfied. Also more enhanced formalisms such as dynamic FT (DFT) might not be adequate to represent all the behavioral aspects of dynamic systems. To overcome these problems we developed a new formalism derived from RBD: the dynamic RBD (DRBD). DRBD exploit the concept of dependence as the building block to represent dynamic behaviors, allowing to compose the dependencies and adequately managing the arising conflicts by means of a priority algorithm. In this paper we explain how to use the DRBD notation by specifying a practical methodology. Starting from the system knowledge, the proposed methodology drives to the overall system reliability evaluation through the entire phases of modeling and analysis. An example taken from literature, consisting of a multiprocessor distributed computing system, is analyzed.