A new modeling approach to the safety evaluation of N-modular redundant computer systems in presence of imperfect maintenance

@article{Flammini2009ANM,
  title={A new modeling approach to the safety evaluation of N-modular redundant computer systems in presence of imperfect maintenance},
  author={Francesco Flammini and Stefano Marrone and Nicola Mazzocca and Valeria Vittorini},
  journal={Reliab. Eng. Syst. Saf.},
  year={2009},
  volume={94},
  pages={1422-1432}
}
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References

SHOWING 1-10 OF 30 REFERENCES
COMPARISON OF METHODOLOGIES FOR THE SAFETY AND DEPENDABILITY ASSESSMENT OF AN INDUSTRIAL PROGRAMMABLE LOGIC CONTROLLER
TLDR
This paper deals with the safety and dependability analysis of a Programmable Logic Controller (PLC) according to the requirements of IEC 61508, and different probabilistic techniques of increasing modeling power have been compared.
Dynamic Bayesian Networks for modeling advanced Fault Tree features in dependability analysis
TLDR
It is shown how BN can provide a unified framework in which Dynamic FT (DFT), a recent extensions able to treat complex types of dependencies, can be represented and how DBN can be safely resorted to if a quantitative analysis of the system is required.
Analysis of Safety Related Architectures
  • A. Coccoli, A. Bondavalli
  • Computer Science
    2003 The Ninth IEEE International Workshop on Object-Oriented Real-Time Dependable Systems
  • 2003
TLDR
This work will elaborate on architectural organizations to ensure safe and available service and internal error detection mechanisms coupled with on-line testing activities intended to stress each component of the system so to induce errors and thus to anticipate their detection (reducing latency).
Repairable fault tree for the automatic evaluation of repair policies
TLDR
This paper proposes an extension, repairable fault trees, which allows the designer to evaluate the effects of different repair policies on a repairable system and it is supported by a solution technique which transparently exploits generalized stochastic Petri nets for modelling the repairing process.
The design and evaluation of all voting triple modular redundancy system
TLDR
It is seen that the AVTMR system has a high dependability more than a single system by evaluation, and it can be applied to airplane and railway systems.
Using repairable fault trees for the evaluation of design choices for critical repairable systems
TLDR
This paper shows how to exploit RFT advantages by evaluating the effects of different repair policies on the availability of the most critical component of ERTMS/ETCS (an European railway standard) systems: the radio block centre (RBC).
Dependability metrics to assess safety-critical systems
TLDR
The objective of this paper is to develop two metrics that can be used in the assessment of safety-critical systems, the steady-state safety, S/sub ss/, and the Mean Time To Unsafe Failure (MTTUF).
Integrated frameworks for multi-level and multi-formalism modeling
  • W. Sanders
  • Computer Science
    Proceedings 8th International Workshop on Petri Nets and Performance Models (Cat. No.PR00331)
  • 1999
TLDR
This paper presents an overview of the Mobius project, which aims to provide a modeling framework and software environment that support multiple modeling formalisms, methods for model composition and connection, and a way to integrate multiple analytical/numerical- and simulation-based model solution methods.
Hazard analysis of complex distributed railway systems
TLDR
The hazard analysis methodology defined and used in ASF (Ansaldo Segnalamento Ferroviario) and the results obtained by its application to the ERTMS/ETCS system are described.
Stochastic Well-Formed Colored Nets and Symmetric Modeling Applications
TLDR
It turns out that SWN's allow the representation of any color function in a structured form, so that any unconstrained high-level net can be transformed into a well-formed net.
...
...