Dummies’ guide to Web accessibility for disabled people
0 Comments | DNA. Sunday; Mumbai, Aug 29, 2010 | by Chandra, Vaishalli
Recently, Yahoo! India R&D; received NCPEDP (National Centre for Promotion of Employment for Disabled People)-Mphasis Universal Design Award for Accessibility. The award recognised Yahoo! for making its properties accessible for disabled people. In a talk with Vaishalli Chandra, Srinivasu Chakravarthula, who manages the Accessibility Lab at Yahoo! India R&D;, elucidated how the Internet can be accessed by people with disability.
Technology assists
Yahoo doesn’t develop any software, yet it supports NVDA (Non-Visual Desktop Access), an open-source screen reader as good as Jos. Yahoo! makes sure all its new products are compatible with accessibility standards.
There isn’t a need for individual websites to install technologies to assist people with disability. What’s needed is to ensure the website is compatible with tools that people with disabilities use.
For instance, if a blind person is visiting a website means he or she is switching on the browser, and typing the web address in the address bar. This means the person already has a tool that helps logging onto the website. Moreover, disabled persons use several websites like everybody, hence they don’t need any special software to access the website. In fact, by doing so, one would be making the process tedious for them.
Imagine there are five websites that have their own screen reader. The user will take at least 30 minutes to get acquainted to the accent on each website. Hence, the key is to enable the user to use same “screen reader” across web pages.
This can be done by complying to Web Content Accessibility guidelines, a compliance checklist that enables assisted technologies work well with the disabled. If the software is slower, the disabled cannot compete with ‘regular’ users. It’s here that technology steps in.
Different needs
A blind person can use a computer by listening to the screen reader. But what if the person is blind and deaf? The user cannot see or hear, but can feel by touching objects. This is how a blind and deaf person will access a computer – Braille (used by people who are blind or even deaf and blind).
Similarly, a USB device called Refreshable Braille display helps in connecting to a laptop or computer. It converts whatever is typed or heard on the computer to Braille.
Disability isn’t just about being visually-impaired. For those with mobility issues, the user can use a computer with aid of a track ball. Even if the user does not have fingers, by just using the palm, the user can access the computer using a device called jelly bean switch.
What if the user doesn’t have both hands? Voice recognition software used in cellphones is useful. However, this software needs to be updated to get used to voices
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