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Safe Comp 97 pp 332-342 | Cite as

Safety Cases for Software-intensive Systems: an Industrial Experience Report

  • Stephen Barker
  • Ian Kendall
  • Anthony Darlison
Conference paper

Abstract

This paper describes the development of a safety case for the electronic throttle system for the recently launched Jaguar XK8 sports car. It presents the practical application of a wide range of safety assurance techniques to a significant industrial project and shows how these techniques may be used together to build up evidence supporting a sound safety argument.

The system design and safety assesment took full account of the risk-based approach to safety, and of contemporary and emerging standards such as diEC1508 [1]. The application of best practice was found to be both feasible and beneficial. However lessons were also learnt for future developments. Th e paper is therefore of direct relevance to practising engineers faced wut the problem of assuring the safey of computer-based systems. It is also relevant to researchers investigating how best to combine evidence to form a safety case.

Keywords

Safety Property Electronic Throttle Fault Tree Analysis Safety Case Throttle System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    dIEC1508. Functional Safety: safety-related systems. Parts 1 to 7, 65A/179/CDV to 65A/185/CDV, draft, June 1995.Google Scholar
  2. 2.
    ISO 9000–3 : 1991(e). Guidelines for the application of ISO 9001 to the development, supply and maintenance of software.Google Scholar
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    The Motor Industry Software Reliability Association. Development Guidelines For Vehicle Based Software. November 1994. ISBN 0 9524156 0 7.Google Scholar
  4. 4.
    Kendall I. The safety assurance of the AJV8 electronic throttle. In: The Electrical System of the Jaguar XK8, IEE Digest 96/281,1996. UK ISSN 0963–3308Google Scholar
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    DRIVE Safely (Project V1051). Towards a European Standard: The Development of Safe Road Transport Informatic Systems. Draft 2, March 1992.Google Scholar
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    Allen R, Ashworth A, and Hoskins W. Safety: A Modem Approach for Modem Vehicles. C498/1/178 in: IMechE Proceedings from Autotech 95,1995.Google Scholar
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    Farnsworth A and Marshall H. User Guide for MALPAS Release 6.1. Report TACS/1019/N7, TA Consultancy Services Ltd, April 1996.Google Scholar
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    McDermid J, Wilson S, Fenelon P. ASAM-II: Concepts and Process. Report ASAMII/ REQ/95.3, Issue 2.2, University of York, 14 May 1996.Google Scholar

Copyright information

© Lloyd’s Register and Jaguar Cars 1997

Authors and Affiliations

  • Stephen Barker
    • 1
  • Ian Kendall
    • 2
  • Anthony Darlison
    • 1
  1. 1.Lloyd’s Register HouseUK
  2. 2.Jaguar CarsUK

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