한국형 보완대체의사소통상징 학습 시스템 개발과 사용성 평가

Abstract

Background and Objective: Since messages and concepts are expressed through Augmentative and Alternative Communication(AAC) symbols, learning and training are essential in AAC intervention. In this paper, in order to increase the utilization of AAC symbols by people with communication disorder, we developed a web-based symbol learning system using Korean AAC symbols and examined user satisfaction. Method: For symbol learning and user evaluation, the web-based symbol learning system developed in this study consists of five stages: familiarizing with symbols, finding symbols, expressing symbols, and two stages for learning symbol classification. We conducted a usability test which consisted of quantitative evaluation and Focus Group Interview(FGI). Results: As a result of performing quantitative evaluation, an average score was 4.1 for satisfaction of content and operation. As an early symbol learning stage, it was found to be useful for first-time AAC users who were willing to communicate with other people. The system was also found to be useful as teaching and learning content for AAC facilitators. It could be useful for many types of disabled students, although it was pointed out by some users that accessibility of students with brain lesions disorder should be additionally supplemented. Conclusion: Through the symbol learning system developed in this study, we expect that facilitators and learners can improve their ability to utilize AAC symbols and tools.