Triggering

A Cause triggers a System to operate in accordance with its intended purpose. Alternatively, an Actor (acting volitionally or not) which participates in the Cause, stands in for the Cause. The System often has the capability to detect and signal the presence of an object or the occurence of an event (metal, an earthquake). It may also be or contain an explosive device. The Means by which the Cause activates the System may also be specified. Smoking a cigarette will normally not set off a smoke alarm. Suspected drug traffickers set off 12 bombs, injuring 35 people. Joseph wriggled out of the ropes and inadvertantly triggered the burglar alarm.