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Analysing Mode Confusion: An Approach Using FDR2

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Computer Safety, Reliability, and Security (SAFECOMP 2004)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 3219))

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Abstract

Mode confusion situations or more general automation surprises can arise in the context of sophisticated control systems which require the interaction with human operators as for example flight monitoring systems in airplanes. A “mode” is defined by a subset of system variables the values of which determine distinguishable forms of system behaviour. Critical situations can arise if the operator interacts with the system assuming a wrong mode. The identification and analysis of such situations needs to take into account both the system design and the operators mental model of the system. Recent research showed that model-checking techniques are useful for identifying mode-confusion situations. Two different approaches can be found: the first tries to identify mode confusion potential in system design, the second analyses actual mode confusion situations to identify the discrepancies between the mental model of operators and the system design. This paper reports an experiment in using the model-checker FDR2 for comparing system and mental models based on CSP refinement. In contrast to earlier attempts using model-checkers for this task, this approach allows a direct comparison of the two models which can be easily derived from a rule-based description.

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Buth, B. (2004). Analysing Mode Confusion: An Approach Using FDR2. In: Heisel, M., Liggesmeyer, P., Wittmann, S. (eds) Computer Safety, Reliability, and Security. SAFECOMP 2004. Lecture Notes in Computer Science, vol 3219. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30138-7_9

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  • DOI: https://doi.org/10.1007/978-3-540-30138-7_9

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-23176-9

  • Online ISBN: 978-3-540-30138-7

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