This success criteria item is intended to convey information for a wide variety of users. For example, a person who is hard of hearing can read captions for a video, or a screen reader user can have alternative text read aloud to them. By providing an alternative presentation to the content in the form of alternate text, captions, transcripts or audio description files, a builder is ensuring the content is usable by users with a wide variety of abilities. Alternate text should include the intended information being communicated in an image.The idea is to communicate the same information through text that is shown in the visual display.
*Note: Images of text should include all text communicated in the alt text. Self-Test: If you covered up or hid the visual aspect of the non-text content would you gain the same understanding by reading only the alternative text?
Guideline 1.1.1
Text alternatives are provided for all time-based media through captions, transcripts, or a descriptive identification
Text alternatives are provided for all sensory items: sight, sound, touch, feel through a transcript, captions, or descriptive identification
CAPTCHAs (completely automated public turing test to tell computers and humans apart) provide a description or text alternative
Transcripts and captions are provided for all time-based media
There are no AAA requirements for this guideline