In the light of this discussion,this essay related the concept of the technology assistive device,which included the definition of the AAC,the component of the AAC and the form of AAC.

• 本文叙述了科技辅具的概念,包括辅助沟通的定义,辅助沟通的组成及辅助沟通的形式。根据沟通障碍者语言特点,给出了辅助沟通适用的对象及辅助沟通介入的目的。