Counteraction in the next time instant, depending on a condition.
A counteraction must be performed every time and only when a specific location is entered.
Applies when the occurrence of a stimulus triggers a counteraction later.
Applies when occurrence of a stimulus instantaneously triggers a counteraction.
Given a set of locations the robot should repeatedly visit all the locations.
Occurrence of a stimulus triggers a counteraction promptly.
Inaction is desired till a stimulus occurs.