A hazard is an undesired situation. A situation is undesired if the operation design is not prepared to handle it, namely, if it is not in the design scope.
According to the resilience model ... ... a hazard is associated with an exceptional situation.
When a hazard implements a risk, the hazard becomes a threat. The relationships between these terms are described in the Extended Swiss Cheese Model ...
The effect of a hazard depends on the operators awareness of it. Accordingly, we need to define two states of the hazard:
In the navigation system presented here ..., the scenario setting [Normal navigation, Idle] is a hazard, because it is not part of the scenario knowledge base.
Updated on 29 Mar 2017.