Ensure that the user interface follows principles of accessible design: device-independent access to functionality, keyboard operability, self-voicing, etc.
When an embedded object has its "own interface", the interface - like the interface to the browser itself - must be accessible. If the interface of the embedded object cannot be made accessible, an alternative accessible solution must be provided.
Note. For information about accessible interfaces, please consult the WAI Home Page for pointers to the work being done on User Agent Accessibility Guidelines and Authoring Tool Accessibility Guidelines.
Next slide: Guideline 9.