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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