The guidelines below include most factors that are considered during a usability evaluation of a prototype, partial, or full user interface. Not all factors apply to every interface. The guidelines are a work in progress. Check back periodically for a new version. Easy to use Search function is provided Functionality Site accommodates usage patterns for different types of users, novice to expert Functionality is clearly labeled Necessary functionality is available without leaving the site Plug-ins are used only if they add value.
Site uses the alt attribute to describe the function of all visuals.
Image maps . Site uses client-side MAP and text for hotspots Multimedia. Site provides summaries or uses the longdesc attribute. Site provides alternative content in case active features are inaccessible or unsupported Frames . Site makes line by line reading sensible, summarizes where possible Validation .