What kind of disability is affected
by web design?
- Visual
- Blindness
- Barriers
- images that do not have alternative text
- complex images (e.g., graphs or charts) that are not
adequately described
- video that is not described in text or audio
- tables that do not make sense when read in a "linearized" mode
- forms that cannot be tabbed through in a logical sequence
or that are poorly labelled
- Example: Seekonk Police (disable
images)
- Barriers
- Web pages with absolute font sizes that do not enlarge
or reduce easily
- Web pages that, because of inconsistent layout, are difficult
to navigate when enlarged, due to loss of surrounding context
- Web pages that have poor contrast
- text presented as images, which prevents wrapping to the
next line when enlarged
- text presented as images that pixelate to unreadabilty
when magnified
- example: Designing
for low vision and Debbie Porter
- Color blind
- Barriers
- color that is used as a unique marker to emphasize text
on a Web site
- text that inadequately contrasts with background color
or patterns
- examples:Vischeck and Webexhibits
- Motor/Physical
- Traumatic Injuries
- Spinal cord injury
- Loss or damage of limb(s)
- Diseases and Congenital Conditions
- Cerebral palsy
- Muscular dystrophy
- Multiple sclerosis
- Barriers
- Time-limited response options on Web pages
- browsers and authoring tools that do not support keyboard
alternatives for mouse commands
- forms that cannot be tabbed through in a logical order
- examples of
poor keyboard accessibility: Usability.net and Qssis and
Marshall & Ogletree and
Zaha-Hadid and AdobeCreative
Suite Ad
- Auditory Hearing Loss
- Barriers
- lack of captions or transcripts of audio on the Web, including
webcasts
- lack of clear and simple language
- example: Kim
Miller lyrics
- Cognitive/Learning Learning Disabilities
Why is Accessibility Important
| Universal Design
