Comparing fault trees and bayesian networks for dependability analysis

Andrea Bobbio, Luigi Portinale, Michele Minichino, Ester Ciancamerla

Risultato della ricerca: Capitolo in libro/report/atti di convegnoContributo a conferenzapeer review

Abstract

Bayesian Networks (BN) provide a robust probabilistic method of reasoning under uncertainty. They have been successfully applied in a variety of real-world tasks and their suitability for dependability analysis is now considered by several researchers. In the present paper, we aim at defining a formal comparison between BN and one of the most popular techniques for dependability analysis: Fault Trees (FT). We will show that any FT can be easily mapped into a BN and that basic inference techniques on the latter may be used to obtain classical parameters computed using the former (i.e. reliability of the Top Event or of any sub-system, criticality of components, etc...). Moreover, we will discuss how, by using BN, some additional power can be obtained, both at the modeling and at the analysis level. In particular, dependency among components and noisy gates can be easily accommodated in the BN framework, together with the possibility of performing general diagnostic analysis. The comparison of the two methodologies is carried on through the analysis of an example that consists of a redundant multiprocessor system, with local and shared memories, local mirrored disks and a single bus.

Lingua originaleInglese
Titolo della pubblicazione ospiteComputer Safety, Reliability and Security - 18th International Conference, SAFECOMP 1999, Proceedings
EditorMassimo Felici, Alberto Pasquini, Karama Kanoun
EditoreSpringer Verlag
Pagine310-322
Numero di pagine13
ISBN (stampa)3540664882, 9783540664888
DOI
Stato di pubblicazionePubblicato - 1999
Evento18th International Conference on Computer Safety, Reliability and Security, SAFECOMP 1999 - Toulouse, France
Durata: 27 set 199929 set 1999

Serie di pubblicazioni

NomeLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume1698
ISSN (stampa)0302-9743
ISSN (elettronico)1611-3349

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???18th International Conference on Computer Safety, Reliability and Security, SAFECOMP 1999
Paese/TerritorioFrance
CittàToulouse
Periodo27/09/9929/09/99

Fingerprint

Entra nei temi di ricerca di 'Comparing fault trees and bayesian networks for dependability analysis'. Insieme formano una fingerprint unica.

Cita questo