Since text can be rendered visually, as speech, or as braille it helps many users.
In HTML, provide short functional equivalent text with the "alt" attribute:
<IMG ...alt="Navigation Bar..."> <IMG ...alt="Advertising Information"><AREA ...alt="More Articles"> <AREA ...alt="Health Topics">
Provide content for applets:
<applet code="Lake.class"> <param name="image" content="lh.gif"> <img src="lh.gif" alt="Latest News"> </applet>
Provide long descriptions for complex content (charts, graphs, etc.)
Related Checkpoints: WCAG 1.1, 6.3 ATAG 3.1, 3.3, 3.5
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