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Towards a Clearer Understanding of Context and Its Role in Assurance Argument Confidence
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0002-6352-4368
2014 (English)In: COMPUTER SAFETY, RELIABILITY, AND SECURITY (SAFECOMP 2014) / [ed] Bondavalli, A DiGiandomenico, F, Malardalen Univ, Malardalen Real Time Res Ctr, Vasteras, Sweden.: SPRINGER-VERLAG BERLIN , 2014, p. 139-154Conference paper (Refereed)
Abstract [en]

The Goal Structuring Notation (GSN) is a popular graphical notation for recording safety arguments. One of GSN's key innovations is a context element that links short phrases used in the argument to detail available elsewhere. However, definitions of the context element admit multiple interpretations and conflict with guidance for building assured safety arguments. If readers do not share an understanding of the meaning of context that makes context's impact on the main safety claim clear, confidence in safety might be misplaced. In this paper, we analyse the definitions and usage of GSN context elements, identify contradictions and vagueness, propose a more precise definition, and make updated recommendations for assured safety argument structure.

Place, publisher, year, edition, pages
Malardalen Univ, Malardalen Real Time Res Ctr, Vasteras, Sweden.: SPRINGER-VERLAG BERLIN , 2014. p. 139-154
Series
Lecture Notes in Computer Science, ISSN 0302-9743 ; 8666
Keywords [en]
Assurance argument, safety case, safety argument, goal structuring notation, context, confidence, assured safety argument
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-38381ISI: 000360208400010ISBN: 978-3-319-10506-2 OAI: oai:DiVA.org:mdh-38381DiVA, id: diva2:1182201
Conference
33rd International Conference on Computer Safety, Reliability, and Security (SAFECOMP), SEP 10-12, 2014, Florence, ITALY
Available from: 2018-02-12 Created: 2018-02-12 Last updated: 2018-02-12Bibliographically approved

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Graydon, Patrick

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf