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This technique relates to:
The objective of this technique is to allow users to identify the non-text content even if the non-text content is intended to provide a specific sensory experience. For example, a deaf person may want to know what an audio instrumental file is - even if they cannot hear it. Similarly, a blind person may want to know what the subject of a visual image is - even if they cannot see it.
A painting of the Mona Lisa has an alternate text of "Mona Lisa, by Leonardo da Vinci".
A sound file has an alternate text of "5 Grade children playing a Theramin".
A famous modern art piece is labeled "Red, Blue and Yellow, by Piet Mondrian".
Resources are for information purposes only, no endorsement implied.
Check that short text alternative provides a descriptive name.
Check that short text alternative provides a name that has be previously been given to the non-text content by the author or another.
#1 or #2 is true
If this is a sufficient technique for a success criterion, failing this test procedure does not necessarily mean that the success criterion has not been satisfied in some other way, only that this technique has not been successfully implemented and can not be used to claim conformance.
Techniques are informative—that means they are not required. The basis for determining conformance to WCAG 2.0 is the success criteria from the WCAG 2.0 standard—not the techniques. For important information about techniques, please see the Understanding Techniques for WCAG Success Criteria section of Understanding WCAG 2.0.