Summary: Accessibility has become a hot topic as increased awareness and growing requirements demand that applications take into account the needs of all potential users. Accessibility covers not only the Web application, but document, desktop application and hardware, and so on. In the Web application domain, making static Web pages accessible is relatively easy. But for Web 2.0 technology, dynamic content and fancy visual effects can make accessibility testing very difficult. This article introduces the WAI-ARIA standard, which is designed to make future Asynchronous JavaScript and XML (Ajax) widgets accessible. The article also covers accessibility principles in Web 2.0 design and provides several code samples to get you started.
According to WCAG 2.0, there are some common accessibility issues that are typically found in Web 2.0 applications. These issues can be categorized into four kinds of problems:
* Document structure
* Dynamic content updates
* Enhanced keyboard accessibility
* Widget accessibility
Within this article, we take a look at each of these problems and propose possible solutions.
The AT and Web pages relationship using WAI-ARIA
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