The process of conveying a command or order to enable the desired action to be done.
- Automatic control – A means of control that conveys predetermined orders without operator action.
- Local control – A device or a station located on or close to a machine to enable its operation within sight of the operator.
- Remote control – A device or array of devices connected to a machine by mechanical, electrical, pneumatic, hydraulic or other means and by which the machine may be operated remotely from, and not necessarily within sight of the operator.