Safety And Critical Systems

A system can be internally complex or not and it could be perceived as complex anyway by its operator. How can we simplify its use? This problem is important in safety-critical systems, where the human error is the main causal factor for almost 70% of accidents. It is still not clear with aspects of a control room contributed to increasing perceived complexity and how this complexity affects the operators performance. Recent studies in the nuclear power plant control rooms are trying to understand complexity sources following field studies with interviews with reactor personnel and use of a full scale simulator. This is an ongoing research in the assessment of human-system interaction complexity.` Study the attentional capacities of the human operator - Interfaces may be optimized - The system might be made more usable - The user may be trained in the workings of the interface involving system and environment (trying to decrease the unpredictability). The system itself may be made more stable (encouraging cognitive stability)

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Last date updated on September, 2024