[Bug 25401] Alt text should refer user to location of long description

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25401

--- Comment #1 from dmacdona <david100@sympatico.ca> ---
This example does not appear to have an explicit programmatic association
between the image and the long description. And there does not appear to be a
reference to the data in the alt, to make an implicit association... there is
the similarity between the alt and the caption text, but I think we need to
provide an example that can be replicated, and there are not many situation
where the alt and the title of the long description will be the same.

====Current===

<img src="rainchart.gif" alt="Bar chart: Average rainfall in millimetres by
Country and Season.">
  <table>
  <caption>Rainfall in millimetres by Country and Season.</caption>
  <tr><td><th scope="col">UK <th scope="col">Japan<th
scope="col">Australia</tr>
  <tr><th scope="row">Spring <td>5.5 (highest)<td>2.4 <td>2 (lowest)</tr>
  <tr><th scope="row">Summer <td>4.5 (highest)<td>3.4<td>2 (lowest)</tr>
  <tr><th scope="row">Autumn <td>3.5 (highest) <td>1.8 <td>1.5 (lowest)</tr>
  <tr><th scope="row">Winter <td>1.5 (highest) <td>1.2 <td>1 lowest</tr>
  </table>

===Suggestion===
<img src="rainchart.gif" alt="Bar chart: Average rainfall in millimetres by
Country and Season. Table of data follows:">
  <table>
  <caption>Rainfall in millimetres by Country and Season.</caption>
  <tr><td><th scope="col">UK <th scope="col">Japan<th
scope="col">Australia</tr>
  <tr><th scope="row">Spring <td>5.5 (highest)<td>2.4 <td>2 (lowest)</tr>
  <tr><th scope="row">Summer <td>4.5 (highest)<td>3.4<td>2 (lowest)</tr>
  <tr><th scope="row">Autumn <td>3.5 (highest) <td>1.8 <td>1.5 (lowest)</tr>
  <tr><th scope="row">Winter <td>1.5 (highest) <td>1.2 <td>1 lowest</tr>
  </table>

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Received on Tuesday, 13 May 2014 01:36:55 UTC