A chart showing sales for October has a short text alternative of "October sales chart". The long description would read "Bar Chart showing sales for October. There are 6 salespersons. Maria is highest with 349 units. Frances is next with 301. Then comes Juan with 256, Sue with 250, Li with 200 and Max with 195. The primary use of the chart is to show leaders, so the description is in sales order."

Example 2

A line graph that shows average winter temperatures from the past 10 years includes a short text alternative of "Average winter temperatures 1996-2006." The long description includes the data table that was used to generate the line graph.

Resources

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Related Techniques

G94: Providing short text alternative for non-text content that serves the same purpose and presents the same information as the non-text content
H45: Using longdesc
Tests

Procedure

Remove, hide, or mask the non-text content
Display the long description
Check that the long description conveys the same information conveyed by the non-text content.
Expected Results

#3 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.

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