The W3C’s Web Accessibility Initative (WAI) defines the Accessible Rich Internet Applications Suite (ARIA) as a way to make Web content and Web applications more accessible to people with disabilities. It especially helps with dynamic content and advanced user interface controls developed with Ajax, HTML, JavaScript, and related technologies.
HTML 5 is an evolution of HyperText Markup Language (HTML) standard and is designed to provide structure to content. Unlike previous versions of HTML, HTML 5 includes new features such as: better integration of video, the ability to drag-and-drop graphical elements, edit pages and interpret location information such as GPS tracking.
The standard is still under development by the World Wide Web Consortium (W3C) and a draft specification of HTML 5 has been released.
One of the key differences between the first and the second version of the Web Content Accessibility Guidelines (WCAG) was that WCAG 2.0 was designed to be technology agnostic. WCAG 2.0 is organised around design principles and has testable success criteria, but the success criteria are not specific to any particularly technology.
