A design pattern language for accessible web sites

Abstract

Dynamic web sites and rich internet applications have recently got widespread. An important challenge is guaranteeing their accessibility to all potential users regardless of physical and cognitive disabilities as well as hardware and software limitations. To this aim, WCAG 2.0 guidelines have been released as the newest W3C recommendation for accessible web content, and WAI-ARIA are reference specifications for accessible rich internet applications. However, both design resources contain a huge amount of information, and, like all standards and guidelines, do not provide designers with a clear design method. This paper proposes a design pattern language for accessibility to help web designers create accessible rich internet applications compliant with the most recent standards. The language has been implemented as an accessible rich internet application itself, allowing designers with disabilities to participate in web design. The results of a preliminary evaluation are finally discussed.

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