Poorly designed websites can create unnecessary barriers for people with disabilities, just as poorly designed buildings prevent some people with disabilities from entering. Access problems often occur because website designers mistakenly assume that everyone sees and accesses a webpage in the same way. This mistaken assumption can frustrate assistive technologies and their users. Accessible website design recognizes these differences and does not require people to see, hear, or use a standard mouse in order to access the information and services provided.
The fact that an ADA compliant website can increase your target audience by millions is just one reason to make your site more accessible. Another benefit is that not only will you get more customers, but those customers will also know how valuable they are to your business. After all, they might have gone to a few other websites that were not ADA compliant, disappointed each time that they couldn’t access the content, until they got to your website.
In some circumstances, longer and more detailed text will be necessary to convey the same meaningful information that other visitors to the website can see. For example, a map showing the locations of neighborhood branches of a city library needs a tag with much more information in text format. In that instance, where the map conveys the locations of several facilities, add a “longdesc” tag that includes a text equivalent description of each location shown on the map – e.g., “City Center Library, 433 N. Main Street, located on North Main Street between 4th Avenue and 5th Avenue.”
For close to seven years, since July of 2010, the United States Department of Justice (DOJ) has talked about issuing regulations specifically about web accessibility. At that time the US Department of Justice (DOJ) began developing accessibility guidelines for public websites under Title III of the Americans with Disabilities Act (ADA). On December 26, 2017, the Department announced that those regulations were officially withdrawn.
The words in the tag should be more than a description. They should provide a text equivalent of the image. In other words, the tag should include the same meaningful information that other users obtain by looking at the image. In the example of the mayor’s picture, adding an “alt” tag with the words “Photograph of Mayor Jane Smith” provides a meaningful description.