A Study on the Necessity of the Design of AAC from the Perspective of Universal Design

(Background and Purpose) Humans communicate and form social relationships with others by expressing their emotions and desires through words, actions, and facial expressions. However, an alternative is required for those who have difficulty communicating through words, an alternative that can be replaced is required, and AAC(Augmentative and Alternative Communication) is one of the most effective methods of this alternative. (Research Method) This study was conducted as follows. In Chapter 2, the concept of AAC and the assistive devices are explained, and in Chapter 3, takes a deeper understanding of those who use AAC and identifies their needs from the perspective of universal design. In Chapter 4, AAC symbol is analyzed from the semiotic point of view. Chapter 5 concludes, summarizes the research results and presents future research tasks of AAC. (Result) First, before designing an AAC, it is necessary to conduct extensive research on the subjects who use it. It is desirable to design the symbol from the perspective of universal design considering not only the intellectually disabled with cognitive impairment, but also the elderly, foreigners, and speech-impaired people. Second, AAC Devices should consider the 'user interface' that sufficiently reflects the functions for user convenience. It should be designed that is faithful to the function while considering the safety and refined appearance that can increase user satisfaction and reduce the stigma effect on non-users. Third, the pictorial symbol should be designed to convey Korean expressions and emotions in consideration of cultural aspects. People with disabilities may have different perceptions of the objects represented by AAC symbols and may feel the burden of re-learning if the symbol is changed. Therefore, various symbols should be developed and distributed. Fourth, a national-level approach is needed. Free apps and affordable devices can be distributed with the help of state support with its advanced technology and abundant resources as an IT powerhouse. (Conclusion) As a visual language, AAC is a symbol that is understood through intuition beyond words. It should be designed so that people with disabilities or communication difficulties can understand readily with minimized education. A universally designed the society needs to consider various ways to improve the quality of life for all humans. Special school administrators, speech and language therapists, and universal design experts should play a leading role together to systematically develop the AAC.