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OMG RAAML standard for model‐based Fault Tree Analysis
Author(s) -
Berres Axel,
Post Kyle,
Armonas Andrius,
Hecht Myron,
Juknevičius Tomas,
Banham Dave
Publication year - 2021
Publication title -
incose international symposium
Language(s) - English
Resource type - Journals
ISSN - 2334-5837
DOI - 10.1002/j.2334-5837.2021.00905.x
Subject(s) - fault tree analysis , computer science , systems modeling language , unified modeling language , data mining , fault model , reliability engineering , tree (set theory) , software versioning , programming language , software , engineering , mathematics , mathematical analysis , electronic circuit , electrical engineering
Fault tree analysis (FTA) is a top‐down method for identifying the discrete primary failure events that lead to system failures (top level events), and the means for determining the probability of the top‐level events if the probabilities of primary discrete failure events are known. Fault tree models document the logical combination of events that support fault tree analysis. This paper presents part of a forthcoming OMG standard “Risk Analysis Modeling Language” (RAAML) that defines a UML library and profile for fault tree modeling that can be used alongside the OMG Model‐Based Systems Engineering language, SysML. This enables fault trees to be co‐modeled with the system models with all the benefits of direct inter‐model linkage, versioning, and change‐impact analysis.