Web Accessibility for AllPresented by:Amy N. Payne

W3CWAI

WCAG

UAAG

Interesting Facts

08 to 9% of men and 0.05% of women suffer from color blindness

015 million blind and visually impaired in the U.S. 02.2 of every 1,000 people in the U.S. are deaf03% of women and 2% of men will be diagnosed with

carpal tunnel syndrome during their lifetimes

Disabilities that can Affect Web Accessibility

0Visual disabilities0 Blindness0 Low vision0 Color Blindness

0Hearing impairments0 Deafness0 Hard of hearing

0Physical Disabilities0 Motor disabilities

Improving Web Accessibility

0Adaptive Technology0Automated Conversation0Human Development

Visual Disabilities

0Be consistent with the layout, so if it is magnified context will not be lost

0Use high contrast images that can be used with style sheets

0Use alternative text with all images0 If video is used describe it in a text document0Avoid non-standard document formats that may be

difficult for a screen reader to interpret0Avoid text presented as images

Hearing Impairments

0 Include captions or transcripts of audio on the web0Avoid over use of text and use images when necessary0Remember sign language is a second language for

hearing impaired

Physical Disabilities

0Avoid time limited response options on Web pages0Always offer keyboard alternatives to mouse

commands0Use forms that can be tabbed through in a logical

order

Accessibility Myths

0Accessible web is more expensive for streaming audio and requires higher bandwidth

0Accessible web requires two versions of the same website—text and graphical

0Accessible web is only required if you receive federal funding

0Web developers cannot be held liable if their client told them to ignore accessible design

References

0 http://www.brailleinstitute.org0 http://research.gallaudet.edu/Demographics/deaf-US.php0 http://

answers.yahoo.com/question/index?qid=10060112054180 http://www.afb.org/Section.asp?Documentid=34810 http://juicystudio.com/services/

aertcolourcontrast.php#result0 http://www.velvetblues.com/web-development-blog/prope

r-use-of-alt-text-in-html/

0 Thatcher, Jim. Web Accessibility Web Standards and Regulatory Compliance. Berkley: Apress, 2006