On state change

The Scenario analyzer is in charge of keeping track of the modes and of informing the other units about changes. The scenario control functions are:

Receives commands from the operators, for setting the operational mode
Rebounds commands that do not comply with the scenario knowledge base
Tracks the modes and their changes, according to the scenario knowledge base
Enables the system units and the operators to access the modes when they need them
Notifies the system units and operators about mode changes
Notifies the alarm unit about deviations from the rules stored in the scenario knowledge base