If the visual representation can be described with data, you give them the option to view that data. Images have a longdesc attribute for this http://webaim.org

If the visual representation can be described with data, you give them the option to view that data. Images have a longdesc attribute for this http://webaim.org/techniques/images/longdesc http://webaim.org/techniques/images/longdesc Not all visual applications can be made accessible.