Haptic

Relating to the sense of touch as a means of interaction between a user and a device. Haptic interfaces include braille displays that raise and lower pins to represent text, vibration motors in mobile devices that provide tactile feedback, and specialised controllers that offer force feedback. In accessibility, haptic output provides an alternative or supplement to visual and auditory information. The haptic design space can be subdivided into tactile (surface touch, pressure, texture) and kinaesthetic (awareness of body position and movement). Braille displays are the most established haptic assistive technology, but vibration patterns are increasingly used in mobile accessibility to convey notifications and navigation cues.