Preventing user errors by systematic analysis of deviations from the system task model

Authors:
Fabio Paternò;Carmen Santoro
Affiliations:
CNUCE-C.N.R., Via G. Moruzzi 1, 56100, Ghezzano Pisa, Italy.;CNUCE-C.N.R., Via G. Moruzzi 1, 56100, Ghezzano Pisa, Italy.
Venue:
International Journal of Human-Computer Studies
Year:
2002

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Abstract

Interactive safety-critical applications have specific requirements that cannot be completely captured by traditional evaluation techniques. In this paper, we discuss how to perform a systematic inspection-based analysis to improve both usability and safety aspects of an application. The analysis considers a system prototype and the related task model and aims to evaluate what could happen when interactions and behaviours occur differently from what the system design assumes. We also provide a description and discussion of an application of this method to a case study in the air traffic control domain.