This section provides links to charts describing various models used for describing operational failure, as follows:

• Root cause ...: A model of root-cause analysis and of a human error, describing an incidence as a result of a regular event occurring in exceptional situations.
• Incidence-generation ...: A model describing the stages of incidence-generation ... from a trigger through primary hazard and threat
• Failure model ...: A more detailed model describing various ways of the incidence development, and its relationships with the system situation.
• Error modes ...: A model describing how error modes are related to the operator's mental processing.
• Risk timeline ...: A model describing the risk timeline ..., its development in the various stages of incidence generation ...
• Alarm risks ...: A model describing the risks of failure of the alarming system, and the contribution of the reliability of alarm components to the system resilience.

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Updated on 24 May 2017.