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 P eople who need to use an alternative input method, such as a switch, will often need a considerable period of time in which to develop the skills needed to use the switch successfully. Switches can control battery-operated learning aids, communication devices, power wheelchairs, computers and Electronic Aids to Daily Living (EADLs). Like all motor and cognitive skills these are best learned from an early age, with suitable activities and teaching strategies. Switches can be operated in different ways; hands, head, foot, etc. Factors to consider when choosing a switch include size, feel, color, mounting ability, and operating pressure and movement.