Augmentative and alternative communication

thumb|Accessibility Braille [[dashboard in elevator]]

umbrella term describing techniques used for those with communication impairments

Blissymbols or Blissymbolics is a constructed language conceived as an ideographic writing system called Semantography consisting of several hundred basic symbols, each representing a concept, which can be composed together to generate new symbols that represent new concepts.

Makaton is an augmentative and alternative communication (AAC) system which uses signs (hand gestures) and symbols (images) alongside speech and written words to support communication. Despite its use of signs, Makaton is not a sign language.

assistive listening technology

augmenting speech device

a communication teaching method for people with limited speech

thumb|Example ColorADD symbols for seven colors ColorADD is a sign code for aiding color blind people to recognize colors, developed by Portuguese graphic designer and professor at the University of Minho, Miguel Neiva. It consists of geometric shapes representing colors and color combinations. The app won the accessibility category of the 2013 Vodafone Foundation Mobile For Good Europe Awards.

approach to Deaf education that aims to make use of a number of modes of communication such as signed, oral, auditory, written and visual aids

presentation of data as sound

learned society dedicated to augmentive and alternative communication