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Decision Centred Design
First Generation
Red light => Shut down is simple RPD
BUT
At a management level, there is uncertainty
over
Goals, Courses of Action, Expectancies
Uncertainty is not managed => loss of performance
Third Generation
Management level now in the Control Room
Getting the full history on plant, operational constraints etc seen as big advantage
BUT
Potential for information overload, knowing when to stop information gathering
Difficulty in weighting information, separating myth from fact
SO
Use agent-mediated communication between stakeholders, with Group Decision Support
Not real-time, but fast for off-line