In addition, aids and services include a wide variety of technologies including 1) assistive listening systems and devices; 2) open captioning, closed captioning, real-time captioning, and closed caption decoders and devices; 3) telephone handset amplifiers, hearing-aid compatible telephones, text telephones (TTYs) , videophones, captioned telephones, and other voice, text, and video-based telecommunications products; 4) videotext displays; 5) screen reader software, magnification software, and optical readers; 6) video description and secondary auditory programming (SAP) devices that pick up video-described audio feeds for television programs; 7) accessibility features in electronic documents and other electronic and information technology that is accessible (either independently or through assistive technology such as screen readers) .
President George H.W. Bush signed the Americans with Disabilities Act into law July 26, 1990. The ADA prohibits discrimination of people with disabilities and guarantees the same opportunities as everyone else. These opportunities include employment possibilities, purchasing of goods and services and the ability to participate in State and local government programs.
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.”
Web accessibility evaluation tools are software programs or online services that help you determine if web content meets accessibility guidelines. This page provides a list of evaluation tools that you can filter to find ones that match your particular needs. To determine what kind of tool you need and how they are able to assist you, see Selecting Web Accessibility Evaluation Tools.
Technology is changing, and many website designers are using creative and innovative ways to present web-based materials. These changes may involve new and different access problems and solutions for people with disabilities. This Chapter discusses just a few of the most common ways in which websites can pose barriers to access for people with disabilities. By using the resources listed at the end of this Chapter, you can learn to identify and address other barriers.
Several U.S. courts, including the United States Court of Appeals for the Ninth Circuit, have ruled that commercial websites, including those where people make online purchases, are bound by ADA regulations. The ADA calls for auxiliary aids in communication, which has been interpreted by courts as extending to online video captioning and website accessibility.