- From: Martin McCormick <martin@dc.cis.okstate.edu>
- Date: Tue, 30 Apr 2002 16:38:26 -0500
- To: w3c-wai-ig@w3.org
I see a strong parallel here to something that probably seems totally unrelated. I will keep it short. The Federal Communications Commission regulates broadcast technology in the United States because there is a finite number of channels. The idea is to support technology that will be the most useful to the entire population. When advances have come along such as color in television and stereophonic sound in both radio and television, the FCC actually let private industry develop the new signal standards and said that there were only two conditions. The new audio and video signals had to produce proper sound and picture on older monochrome sets so that everybody's existing set didn't become rubbish overnight. They also said that after the engineering test period, whichever standard produced the best signal quality would become the standard for radio/TV broadcasting in the United States for the foreseeable future. The purests grumbled but that model has worked all over the world. In most countries, color television is monochrome compatible and FM stereo sound broadcasts produce a perfectly good mono signal on sets that don't receive stereo. If you consider the technology of the time period when color was added to television, about 1950-51 or so, it was a technological miracle that engineers could make it happen and mass-produce that technology. The difference between broadcasting and web accessibility issues seems total, but the parallel is that we are trying to provide information to hopefully all comers. There is no FCC for computing because we are not dealing with the sort of mutual exclusivity that is the nature of radio broadcasting. To this day, people can buy inexpensive monochrome televisions and use them effectively. They represent the simplest and cheapest way to receive TV signals. Text-only browsers like lynx and relatives represent a known-workable solution to access as well as a light-weight load on either older, slower, or otherwise minimalist equipment. Truly good technology is flexible enough to continue to work in a variety of situations. Is what we have now acceptable with all of its high-end requirements? I think not. We can have all the high-end capabilities one can imagine and still easily support a great deal of legacy technology. One simply has to decide that this is an important principle and that resolve has been absent as far as I can tell. Modems and other telecommunications devices usually negotiate until both agree on a protocol that works. Why can't web server software do this automatically? Martin McCormick
Received on Tuesday, 30 April 2002 17:38:27 UTC