Supporting accessibility is must according to the United States Laws.
Understanding the accessibility support and implementing is must to do list in website development.
What is Web accessibility mean?
Web accessibility means supporting people who are impacted by abilities and disabilities while making website. The law describe all the users must have related equivalents when we develop website, this means blind users will use text to speech software and/or text to Braille hardware also deaf users and hard hearing users can understand the video if we add a caption to video.
Who are the people really getting benefits when accessibility supported website developed?
Visual impairments including blindness, low vision, poor eyesight users, various types of color blindness users.
Difficulty or inability to use the hands users
Deafness or hearing impairments and hard of hearing users
Developmental disabilities or learning disabilities users
Web content accessibility guidelines was published by World Wide Web Consortium (W3C)
You must read United States Laws for accessibility support. Here is the link for more information
http://webaim.org/articles/laws/usa/
You also must aware other countries also having accessibility support law implements, Asia (Hong Kong and Japan), United Kingdom, Canada, Australia and New Zealand also implemented the law to support accessibility users.
You have to read the more details from following site to know about it.
http://webaim.org/articles/laws/world/
Read more about Accessibility from W3 official website
http://www.w3.org/standards/webdesign/accessibility
Here is some very useful website to look for developers before stating to develop accessibility web
http://www.w3.org/WAI/
http://www.w3.org/WAI/intro/accessibility.php
https://webaccessibility.withgoogle.com/course
Here are some tools to support accessibility development.
WAVE Web Accessibility Tool
The WAVE Firefox toolbar provides a mechanism for running WAVE reports directly within Firefox.
http://wave.webaim.org/toolbar/
Color Contrast Analyser
This native application (available for both Windows and Mac) allows you to evaluate the color visibility and contrast of foreground/background color combinations.
http://www.paciellogroup.com/resources/
More tools details can be find from Wide Web Consortium (W3C) site
http://www.w3.org/WAI/ER/tools/complete
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