The Web Content Authoring Guidelines
One of the first documents produced by the program aimed at the Web developer was the Web Content Authoring Guidelines (WCAG). Fourteen guidelines describe general principles of accessible design. Several checkpoints are provided for each guideline, giving practical applications for each design principle. The checkpoints are assigned one of three priorities:
Priority One— This checkpoint must be satisfied, or at least one group will be unable to access the information.
Priority Two— This checkpoint should be satisfied; otherwise, at least one group might find it difficult to access the information. Unresolved issues might represent significant (though not impossible) barriers.
Priority Three— This checkpoint ...
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