| Popis: |
In previous papers, the need to depart from traditional "one sensor - one indicator" approaches in order to take full advantage of the possibilities offered by the computer was pointed out and an approach based on the conception of the operator as a multi-mode information processor was advanced. This formulation of operator functioning as being categorisable into elements of skill-based, rule-based and knowledge-based behaviour gives, among other things, a structure for generating suitable forms for information presentation which is compatible with these elements and thus can counteract certain recognized tendencies for human malfunction arising from insufficient or inadequate displays of information. These ideas have been developed further and incorporate now a multi-level representation of the process to be controlled together with the associated control task/information need spectrum. With this foundation, it is possible to structure the content of an appropriate set of displays for supporting operator strategies and internal system representations - particularly when dealing with plant disturbances. The paper concludes with some preliminary examples of an application to a nuclear power plant to illustrate also a possible language for presenting the necessary informational content. |
