Umm, is this a question in search of a problem? Seriously, creating/maintaining a web site specifically individuals with developmental disabilities seems to be a lost cause. Other than an educational owner attempting to mainstream these folks, what’s in it for them? Such a site would be a loss leader. If anything, it would have to be operated for its altruistic benefit, or somehow entice caregivers and families to contribute to its support. Yes, this sounds rude, crude and socially unacceptable.
On the other hand, web sites created and maintained with federal tax dollars are required to meet the requirements of Section 508 of the Rehabilitation Act of 1973. While many people think we are addressing just physical disabilities (blindness, hearing impaired, motor skills issues) with Section 508, it also applies to individuals with cognitive disabilities. Of course, Congress being what is and isn’t never offered clarification. In addition, for Section 508 to be successfully administered, reliance upon W3C standards is required. Within W3C is the Web Content Accessibility Guidelines. WCAG 1.0 is currently in force with WCAG 2.0 Working Draft just released. Section 508 references WCAG 1.0.
Of course, the usual disclaimer is there is no requirement for web sites unsupported by federal tax dollars to adhere to Section 508, and that it entails so what the hell. However, several states have established Section 508 as their baeeline for state-supported web sites as well. But we’re still only addressing taxpayer-supported web sites.
The unknown is whether the Americans with Disabilities Act plays with commercial and private web sites. While the Target case is specifically addressing blind web users it is still an ADA case against a commercial web site. In 2004 the New York AG applied ADA to commercial and private web sites in that state.
Research is ongoing as to how people with disabilities access the web, including those with cognitive disabilities. One of the better research sites is the Trace Center at the University of Wisconsin-Madison.
One of the (many) hazy areas involves usability and readability of web sites, especially so with cognitive disabilities. Accessibility and usability are not the same thing, nor are they mutually exclusive. One of the clearest blends of the two is best illustrated with readability testing. Readability testing is not a concept to “dumb down” content. That’s a false conception here. Readability, with respect to the web, may be similar to hard copy readability in many ways. Then again, it is different because the brain captures and analyzes web content differently than hard copy content. Still the readability tests for the web are based on hard copy tests and serve as a guide.
I’m going to speculate that web sites specifically for the developmentally disabled with be support sites for caregivers and families. These sites will only be tools to assist the developmentally disabled, but they will not web sites for the developmentally disabled to be used independently by them.