What does ARIA do?
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• W3Cese
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• “This specification provides an ontology of roles, states, and properties that define accessible user interface elements and can be used to improve the accessibility and interoperability of web content and applications. These semantics are designed to allow an author to properly convey user interface behaviors and structural information in document-level markup, to an assistive technology.”
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•(http://www.w3.org/TR/wai-aria/)
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• English
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• It’s a W3C specification that defines a way to make Web content and Web applications more accessible to people with disabilities.
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Continuing with the WAI theme...

If WCAG addresses the information in a Web site (text, images, forms, etc).

ARIA addresses dynamic Web content and Web applications.