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无障碍上网又被称为互联网络无障碍(Web Accessibility),指残疾人、有特殊需求的健全人可以方便地获取网络上的任何信息。用户是通过看和听输入信息,通过说话、写字和敲击键盘输出信息来使用互联网。在某一种输入输出功能无法正常执行的情况下,要使用替代的方式或辅助工具来帮助人们完成信息的输入输出。这就要求实现网页内容无障碍设计以及上网使用的辅助技术的标准化。目前国内外都有相关单位对该领域开展研究,国内的行业标准研究工作也
Accessibility, also known as Web Accessibility, refers to people with disabilities and those with special needs who have easy access to any information on the Web. The user uses the Internet by looking and listening to information, outputting information by speaking, writing and typing on the keyboard. In the case of a type of input and output functions can not be implemented properly, to use alternative methods or aids to help people complete the input and output of information. This requires standardization of accessibility technologies for Web content accessibility and access to the Internet. At present, there are related units at home and abroad to carry out research in this field, the domestic industry standard research work