The actor is an individual or object that directly participates or assists in the procedure. The actor initiates a change by performing or NOT performing a particular action in a step.
An action is “the something” that is done by an actor. Actions may or may not be observable. An action may describe a behavior that
is accomplished or not accomplished. NOT performing an action should be thought of as just as important as performing an action when developing a step.
“Maintenance team leader: Attach the lockout device to the hasp.”
“The lockout device is to be placed on the hasp by the maintenance team leader.”