Modular Criticality Analysis for Dynamic Fault Trees

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Abstract

Fault trees are commonly used to model fault occurrence and propagation in safety-critical systems. A common analysis question is “how critical is a component failure for the overall system reliability?” These insights allow to guide and tailor system improvements. Dynamic fault trees, a common extension of classical fault trees, enable more realistic modelling. However, their analysis via model-checking techniques, can suffer from state-space explosion. In this work, we revisit a modular analysis of criticality values in dynamic fault trees. The analysis exploits modules—independent subtrees—in the fault tree, and analyses them individually. Our experiments show that modular analysis can successfully mitigate state-space explosion.

Original languageEnglish
Title of host publicationPrinciples of Verification: Cycling the Probabilistic Landscape
Subtitle of host publicationEssays Dedicated to Joost-Pieter Katoen on the Occasion of His 60th Birthday, Part III
EditorsNils Jansen
Place of PublicationCham
PublisherSpringer
Pages274-293
Number of pages20
ISBN (Electronic)978-3-031-75778-5
ISBN (Print)978-3-031-75777-8
DOIs
Publication statusPublished - 18 Nov 2024

Publication series

NameLecture Notes in Computer Science
PublisherSpringer
Volume15262
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Keywords

  • 2025 OA procedure

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