Integrating Existing Safety Analyses into SysML

Kester Dean Clegg; John Alexander McDermid; Alan Grigg; Li Mole

doi:10.1007/978-3-030-32872-6_5

Integrating Existing Safety Analyses into SysML

Kester Dean Clegg, John Alexander McDermid, Alan Grigg, Li Mole

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Migrating systems and safety engineering (often with legacy processes and certified tools) towards a modelbased systems engineering (MBSE) environment is a socio-technical problem. Establishing a commonconceptual framework requires agreement on modelling artefacts and the integration of existing tool chainsto minimise disruption. We discuss our experience integrating a SysML Safety Profile to model fault treesbut which has the prerequisite requirement to continue the analysis of those models by existing tools. Wedemonstrate a lightweight profile that minimally captures the fault logic for a Rolls-Royce gas turbineengine controller and provides specific in-house extensions for both fault tree and engine dispatch analysisby exporting model entities and relationships from the SysML fault trees. During integration we realised amore fundamental need to reconcile the systems engineers’ functional view with the safety engineers’focus on failure modes and fault logic in order to maximimse the longer term benefits of MBSEdevelopment.

Original language	English
Title of host publication	Model-Based Safety and Assessment (IMBSA) 2019
Subtitle of host publication	Lecture Notes in Computer Science
Editors	Y Papadopoulos, K Aslansefat , P Katsaros
Publisher	Springer
Pages	63-77
Number of pages	15
Volume	11842
Edition	2019
ISBN (Electronic)	978-3-030-32872-6
ISBN (Print)	978-3-030-32871-9
DOIs	https://doi.org/10.1007/978-3-030-32872-6_5
Publication status	Published - 11 Oct 2019

Bibliographical note

© Springer Nature Switzerland AG 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

Keywords

SysML
Failure modes
Fault Tree Analysis

Access to Document

10.1007/978-3-030-32872-6_5Licence: Unspecified

IMBSA_2019_Clegg_et_al
© Springer Nature Switzerland AG 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
Accepted author manuscript, 796 KB

Cite this

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Integrating Existing Safety Analyses into SysML. / Clegg, Kester Dean ; McDermid, John Alexander; Grigg, Alan et al.
Model-Based Safety and Assessment (IMBSA) 2019: Lecture Notes in Computer Science. ed. / Y Papadopoulos; K Aslansefat ; P Katsaros . Vol. 11842 2019. ed. Springer, 2019. p. 63-77.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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