Web Content Accessibility Guidelines (WCAG) 2.1 defines how to make Web content more accessible to people with disabilities. Accessibility involves a wide range of disabilities, including but not limited to visual, auditory , physical, speech, cognitive, language, learning, and neurological disabilities. Although these guidelines cover a wide range of issues, they are not able to address the needs of people with all types, degrees, and combinations of disability. These guidelines also make Web content more usable by older individuals with changing abilities due to aging and often improve usability for users in general.
(World Wide Web Consortium: Downloaded 6-5-2018, from https://www.w3.org/TR/WCAG21/)
1. Perceivable Information and user interface components must be presentable to users in ways they can perceive.
2. Operable: User interface components and navigation must be operable
3. Understandable: Information and the operation of user interface must be understandable
4. Robust: Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies
Web Content Evaluators
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