Online shopping and banking will be particularly useful for many disabled and elderly people, who could make up a sizeable group of customers. All users need to be able to understand the controls and navigate the system without external help.

						On control devices, tactile and sound feedback will help many people. Large keys, clear type and distinguishing shapes all help persons with disabilities.
Careful screen image design will help persons with visual impairments. Over 10% of the male population have problems discriminating certain colour combinations.										Pre-programmed buttons for regularly used functions make the system faster to use, and would help many elderly users.
	Character size should be under user control with clear typefaces on non-patterned backgrounds.
									Control units should be easy to hold or operate on flat surfaces.
Speech output feedback for controls would enable persons with low vision gain access.