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Specifying Software Requirements for Safety-Critical Railway Systems: an Experience Report
Bombardier Transportation, Västerås, Sweden.
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0003-0757-822X
2017 (English)In: International Working Conference on Requirements Engineering: Foundation for Software Quality REFSQ, Essen, Germany, 2017, p. 363-369Conference paper, Published paper (Refereed)
Abstract [en]

Software safety requirements are fundamental in the definition of risk reduction measures for safety critical systems, since they are developed to satisfy the system safety constraints as identified by mandated safety analyses. It is therefore imperative that the requirements are defined clearly and precisely. We describe our experiences in introducing a safety compliant method of writing safety software requirements for railway projects in a distributed organization. Our goal was twofold, to develop requirements specifications that comply with the EN 50128 standard and that are understandable by the persons involved in the software development. We introduced methods to transform natural language requirements to functional requirements described as scenarios, sequence, use-case and state-machine diagrams. Our experience shows that new ways of expressing requirements, even if proper to solve technical issues such as compliance with standards, bring other challenges to the organization like people’s reluctance to changes in working routines and process updates.

Place, publisher, year, edition, pages
Essen, Germany, 2017. p. 363-369
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-36994DOI: 10.1007/978-3-319-54045-0_25ISI: 000418400900025Scopus ID: 2-s2.0-85013905575ISBN: 978-3-319-54044-3 (print)OAI: oai:DiVA.org:mdh-36994DiVA, id: diva2:1160481
Conference
International Working Conference on Requirements Engineering: Foundation for Software Quality REFSQ, 27 Feb 2017, Essen, Germany
Projects
DPAC - Dependable Platforms for Autonomous systems and ControlAvailable from: 2017-11-27 Created: 2017-11-27 Last updated: 2018-01-29Bibliographically approved

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Hänninen, Kaj

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CiteExportLink to record
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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