Trigger (stress on "and") is a command or a function that signals the system about the occurrence of a certain event. In English, the word trigger means "trigger" . Hence the analogy with the weapon: when the trigger is triggered, the system should receive a powerful "bladder" and take any action.
Examples of triggers:
In the online stock trading system, when the asset price is lowered below a certain level, the "sell!" Or "buy!" Trigger may trigger, depending on the system settings.
In the air conditioning system, the triggers generate a temperature sensor that gives the air conditioners the signal to turn on when a certain degree is exceeded.