ABSTRACT
The ability to understand the mechanisms underlying error forms, describe cognitive error modes, predict the effects of changes in the operator-machine interface, procedures, training etc. on cognitive error can be used by Human Reliability Analysts to help develop cognitive error reduction strategies. Also from an ergonomics perspective there is a need to gain a better understanding of, for example, what training requirements, how many VDUs, what decision search strategies are best for an operator in a system. By taking an approach which seeks to comprehend what it is that makes certain situations “complex”, it is hoped such research will provide both qualitative and possible quantitative methods to explain the causes of cognitive errors. To take such an approach will make it possible to predict that given certain specified conditions with a certain level of complexity, then specific cognitive errors are likely to occur.
