mike: alt-techniques update from Steven Faulkner

mike: alt-techniques update from Steven Faulkner

http://dev.w3.org/cvsweb/html5/alt-techniques/Overview.html?r1=1.3&r2=1.4&f=h

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RCS file: /sources/public/html5/alt-techniques/Overview.html,v
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-<!DOCTYPE HTML>
-<html lang="en-US"><head><title>HTML5: Techniques for the provision of text alternatives</title><style type="text/css">
-   pre { margin-left: 2em; white-space: pre-wrap; }
-   h2 { margin: 3em 0 1em 0; }
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+  <PRE>&lt;img src="captcha.png" <strong>alt="An audio challenge follows if you cannot view this image."</strong>&gt; 
+&lt;!-- audio CAPTCHA option that allows the user to listen and type the word --&gt;  
+&lt;!-- form that asks a question --&gt;</PRE>
+</div>
+<H4>Further Techniques </H4>
+<UL>
+  <LI><A title="http://www.w3.org/TR/WCAG20-TECHS/G143.html" href="http://www.w3.org/TR/WCAG20-TECHS/G143.html">Providing a text alternative   that describes the purpose of the CAPTCHA</A> W3C Note. </LI>
+  <LI><A title="http://www.w3.org/TR/2007/WD-WCAG20-TECHS-20071211/G144.html" href="http://www.w3.org/TR/2007/WD-WCAG20-TECHS-20071211/G144.html">Ensuring   that the Web Page contains another CAPTCHA serving the same purpose using a   different modality</A> W3C  Note. </LI>
+</UL>
+<p>&nbsp;</p>
+<hr>
+<h2 id="glossary">Glossary</h2>
+<h3>alt text </h3>
+<p>Colloquial term for a text alternative provided  using the <code>alt</code> attribute of an <code>img</code> element.</p>
+<h3>Empty alt attribute or null alt attribute.</h3>
+<p>An alt attribute with no content:</p>
+<pre class="example">&lt;img src=&quot;null.gif&quot; <strong>alt=&quot;&quot;</strong>&gt;</pre>
+
+<h3>Text alternative</h3>
+<p>A programmatically determined <A title="definition: text" href="appendixA.html#textdef">text</A> that is used in place of <A title="definition: non-text content" href="appendixA.html#non-text-contentdef">non-text content</A>, or text that is   used in addition to non-text content and referred to from the <A title="definition: programmatically determined" href="appendixA.html#programmaticallydetermineddef">programmatically   determined</A> text</p>

Received on Monday, 8 March 2010 07:21:45 UTC