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Why permit alternate versions?

April 26, 2017alternate permit versions

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Why permit alternate versions?

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Why does WCAG permit alternate versions of Web pages to be included in conformance claims? That is, why include pages that do not satisfy the success criteria for a conformance level in a conformance claim? • Sometimes, pages use technologies that are not yet accessibility supported. When a new technology emerges, assistive technology support may lag behind, or may only be available to some target audiences. So authors may not be able to rely on the new technology for all users. However, there may be other benefits to using the new technology, e.g. better performance, a wider range of modalities available, etc. The alternate version requirement allows authors to include such Web pages in their web site by providing an accessible alternative page in technologies that are accessibility supported. Users for whom the new technology is adequately supported get the benefits of the new version. Authors who look ahead to future accessibility support can satisfy the success criteria now with th