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Appendix F: World Wide Web Consortium: Web
Content Accessibility Guidelines
(http://www.w3.org/)
Guideline 1:
Provide equivalent alternatives to audio and visual content. (Provide content that, when presented to the user, conveys essentially the same function or purpose as auditory or visual content.)
Guideline 2:
Do not rely on color alone. (Ensure that text and graphics are understandable when viewed without color.)
Guideline 3:
Use markup and style sheets and do so properly. (Mark up documents with the proper structural elements. Control presentation with style sheets rather than with presentation elements and attributes.)
Guideline 4:
Clarify natural language usage. (Use markup that facilitates pronunciation or interpretation of abbreviated or foreign text.)
Guideline 5:
Create tables that transform gracefully. (Ensure that tables have necessary markup to be transformed by accessible browsers and other user agents.)
Guideline 6:
Ensure that pages featuring new technologies transform gracefully. (Ensure that pages are accessible even when newer technologies are not supported or are turned off.)
Guideline 7:
Ensure user control of time-sensitive content changes. (Ensure that moving, blinking, scrolling, or auto-updating objects or pages may be paused or stopped.)
Guideline 8:
Ensure direct accessibility of embedded user interfaces. (Ensure that the user interface follows principles of accessible design: device-independent access to functionality, keyboard operability, self-voicing, etc.)
Guideline 9:
Design for device independence. (Use features that enable activation of page elements via a variety of input devices.)
Guideline 10:
Use interim solutions. (Use interim accessibility solutions so that assistive technologies and older browsers will operate correctly.)
Guideline 11:
Use W3C technologies and guidelines. (Use W3C technologies, according to specification, and follow accessibility guidelines. Where it is not possible to use a W3C technology, or doing so results in material that does not transform gracefully, provide an alternative version of the content that is accessible.)
Guideline 12:
Provide context and orientation information. (Provide context and orientation information to help users understand complex pages or elements.)
Guideline 13:
Provide clear navigation mechanisms. (Provide clear and consistent navigation mechanisms-orientation information, navigation bars, a site map, etc.-to increase the likelihood that a person will find what he or she is looking for at a site.)
Guideline 14:
Ensure that documents are clear and simple. (Ensure that documents are clear and simple so they may be more easily understood.) |
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