ASSISTIVE TECHNOLOGY
BY
JOHN M. WILLIAMS
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SEPTEMBER 1, 1999
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Making
Web Sites Easier for the Disabled to Use
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A government-business consortium has developed accessibility
standards for use worldwide
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If
I were a computer maker, or a telecommunications provider, or ran
an online service, I would want to make the Web easy for disabled
people to use. The reason: sheer economics.
Hundreds of millions of disabled people around the world have little
or no access to the Web. If they can't use this new technology, business
won't realize the full potential of E-commerce. And a lot of disabled
people won't realize their potential, either.
So who's working to make the Web accessible to the disabled? Meet
Judy Brewer, the director of the Web Accessibility Initiative International
Program Office for the World Wide Web Consortium, with offices in
Cambridge, Mass., Europe, and Japan. She's developed the Web Content
Disability Guidelines.
Brewer's program is supported in part by the National Science Foundation,
the National Institute on Disability & Rehabilitation Research,
the European Commission's DG XIII Telematics Applications Programme
for Disabled & Elderly, and the government of Canada, as well
as IBM, Bell Atlantic, and Microsoft.
CRITICAL ACCESS.
In a recent interview, Brewer laid out her goals: Ensure that core
Web technologies support access by the disabled. Promote the voluntary
international guidelines for so-called user agents -- browsers, multimedia
players, screen readers, and voice-recognition devices -- and for
authoring tools. Develop evaluation and repair tools for technologies
that give the disabled Web access. Sponsor education and outreach
on the subject. And monitor research and development efforts that
could improve access to the Web for the disabled.
For the 10% to 20% of the world's people who have a disability, using
the Web is more critical than for the able-bodied, who generally have
an easier time using printed information, Brewer says. Common accessibility
problems on Web sites include a lack of alternative text for images
that are hard to see, uncaptioned audio or video, and linear tables
that have poor color contrast.
Sounds minor? Then consider these real-life stories:
Mark Tyler does business development for a software firm in Tysons
Corner, Va. Part of his job is to search the Web for business opportunities.
And he's angry. Since losing most of his sight two years ago, he can
no longer read charts and graphs. "Even with my talking browser, I
have problems," he says. "The text and graphics must be in a format
that I can easily read or can be easily read to me."
Sheryl Mason of Baltimore can't use a keyboard. She lost both arms
as a child in a fire and is almost legally blind. At age 20, she is
a part-time student, on a scholarship, who uses speech-recognition
programs for her work. "Navigating the Web is very, very difficult
for me," she says. "Getting the program to turn pages on command is
sometimes impossible. Often I have difficulty reading the text because
of the color background on the page. And using a headpointer only
draws additional attention to my limitations and strains my neck."
Mason has hired an assistant to help her navigate the Web -- an expense
that's hard on her budget.
CHEAP REDESIGNS.
Then there's James Holloway of Houston. He is deaf and recently lost
his job as an economist. "We started to do frequent videoconferences
on the Web to cut back on travel and to improve efficiency," he says,
with a touch of bitterness. "Without closed captioning and a sign
language interpreter to sign for me, I couldn't do my job."
The livelihoods and futures of these people depend on their ability
to use the Web. Yet, none of three knew about the accessibility guidelines
from Web Accessibility Initiative when I spoke with them recently.
Brewer stresses that for disabled people, Web barriers mean losing
access to information needed for education, employment, health, entertainment,
E-commerce, and social interaction.
The voluntary WAI guidelines are meant for a variety of audiences
-- including Web designers. Creating or revamping a site so that it
meets WAI standards shouldn't add significantly to development costs,
Brewer stresses. And some tools that promote accessibility can even
help reduce the cost of maintaining or updating sites.
Brewer reminded me that any good Web site presents information in
a way that's easy to use. You can learn more about what that means
for the disabled by visiting www.w3.org/WAI.
Share your opinion of Bowe's new book on BW Online's Assistive
Tech Forum. Or, if you have a question about assistive technology,
write to John at JMMAW@aol.com
EDITED BY DOUGLAS HARBRECHT
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