The Scenario analyzer is part of the recommended architecture ...., in charge of:

• Tracking of the modes
• Informing the other units of the  exception detector about changing the effective scenario.
• Alerting in case of subsequent operating out of the design scope.

  If the operators are not aware of operating out of the design scope, or of instances of scenario-situation mismatch, they might become aware of it only after it is too late to tackle them.

Example

Examples from two case studies:

• The Torrey Canyon accident
• The TMI accident

Updated on 21 Feb 2017.