The creation of a new minor event coding system

John B. Davies, Brendan Wallace, Alastair Ross, L. Wright, M. White

Research output: Contribution to journalArticlepeer-review


The present study began with an assessment of the reliability and usefulness of an existing minor event coding system in a British 'high-consequence' industry. It was discovered that despite the fact that the system produced replicable data, when tested in a reliability trial the causal inferences it was producing failed to meet the normal criteria for statistical reliability. It was therefore felt necessary to create a new model of the human factors component of action in this industry, from which a model of human factors error in the same industry could be inferred. A set of codes (to facilitate statistical analysis) were deduced from this last, which were then tested in a new reliability trial. The results from this trial were very encouraging, and after a six-month pilot study in which it demonstrated its usefulness as a trend and patterning tool, the system is now being phased in within this industry.
Original languageEnglish
Pages (from-to)1-8
Number of pages7
JournalCognition, Technology and Work
Issue number1
Publication statusPublished - Apr 2002


  • error analysis
  • error detection
  • human factors
  • near-miss reporting
  • software
  • risk assessment


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