| State variable | A variable significant to the system resilience. Examples: ambient temperature, boiler pressure, light intensity, noise level ... | more |
| State | A discrete form of a state variable. Examples: cold vs. hot, high vs. low pressure, normal vs. weak light, noisy vs. quiet ... | more |
| State set | The collection of states included in a state machine (or a state diagram) | more |
| Mode | An operational state, selected from a state set | more |
| Context | A set of environmental entities affected by the system behavior | more |
| Scenario | A collection of state sets representing our perception of the system behavior in its context | more |
| Situation | An operational scenario; a set of modes affecting our perception of the system behavior | more |
| Situation awareness | The operator's perception of the system situation ( Wiki ) | more |
Updated on 17 May 2016.