Ironies.html

Goodstein (1981) has discussed process displays which are compatible with different types of operator skill, using a classification of three levels of behaviour suggested by Rasmussen (1979), i.e. skill based, rule based and knowledge based. The use of different types of skill is partly a function of the operator's experience, though the types probably do not fall on a simple continuum. Chafin (198l) has discussed how interface design recommendations depend on whether the operator is naive, novice/competent, or expert. However, he was concerned with human access to computer data bases when not under time pressure. Man-machine interaction under time pressure raises special problems.