When creating
your website, don’t forget about the staff and
volunteers with disabilities. People with disabilities
can experience difficulty using the web because of barriers
in the information or "user agents" (browsers,
multimedia players, or assistive technologies i.e, screen
readers or voice recognition.) These barriers can lead
to lack of access to:
- information for educational programs;
- employment-related information or workplace
intranets;
- information on civic activities or
programs;
- e-Commerce; and
- volunteer opportunities.
How many people does accessibility
affect?
Not all people with disabilities
are unable to access information technologies (for instance,
difficulty walking or a heart condition would not affect
web access). Still, many people with disabilities do
face barriers and, the number is steadily increasing.
Access to the web may be even more critical than for
the general population who can easily access traditional
sources such as print media.
Common barriers on webpages
People with physical,
visual, hearing, and cognitive/neurological disabilities
may encounter common accessibility problems. These problems
include; images without alternative text; lack of alternative
text for imagemap hot-spots; misleading use of structural
elements on pages; uncaptioned audio or undescribed
video; lack of alternative information for users who
cannot access frames or scripts; deciphering tables
that are linearized; or sites with poor color contrast.
Does it cost more to make a site accessible?
Designing
a new site to be accessible should not add significantly
to development cost. Some aspects such as use of style
sheets, can actually reduce the costs of maintaining
or updating sites.
For existing sites,
the ease or difficulty of making sites accessible depends
on a variety of factors, including the size, complexity,
and the authoring tool that was used to make a site.
Periodic upgrades or reviews of sites can be good opportunities.
When compared with the broader audience that a site
is available to, and the greater usability for other
users as well, accessible sites can be cost-effective.
Are there tools that can help
me? Can I test the accessibility of my site?
There are an increasing
number of tools that can help in designing or evaluating
accessibility. "Bobby," is an accessibility
checker developed by the Center for Applied Special
Technology (CAST) at http://www.CAST.org
which performs an automated on-line test. These checkers
can help identify barriers on a site. Because no tool
can perform a complete automated test, false positives
and negatives are possible, and claims of a particular
conformance level must rely on manual checking.
For more detailed
and technical information on guidelines and checklists,
visit the Web Accessibility Initiative (WAI) home page,
at http://www.w3.org/WAI.
It has the most recent information on all the Web Accessible
Resources.
Tips on how to make websites
accessible
Remember that people
use the web differently. Information should be presented
so that it is easily accessible, regardless of the type
of hardware or software being used. Web
designers cannot assume that everyone uses the same
kinds of devices the same way.
- Style. Organize documents
so they may be read easily without style sheets.
- Language. Use the
clearest and simplest language for content.
- Hypertext links. Use
text that makes sense when read out of context. For
example, avoid "click here."
- Page organization.
Use headings, lists, and consistent structure. Use
CSS for layout and style where possible.
- Color. Ensure that
all information conveyed with color is also available
without color.
- Scripts, applets, & plug-ins.
Provide alternative content in case active features
are inaccessible or unsupported.
- Frames. Use the no
frames element and meaningful titles.
- Tables. Make line-by-line
reading sensible. Summarize.
- Check your work. Validate.
Use tools, checklist, and guidelines whenever possible.
Adapted from W3C’s “Web
Content Accessibility Guidelines 1.0” Recommendations.
For Complete Guidelines
& Checklist visit www.w3.org/WAI
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WHO TO CONTACT:
For more information, contact Jennifer Fauss at 202-729-3234 or e-mail JFauss@PointsOfLight.org.
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