W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > January to March 2002

Re: Bobby inaccuracy?

From: Charles McCathieNevile <charles@w3.org>
Date: Tue, 15 Jan 2002 07:38:04 -0500 (EST)
To: "Scarlett Julian (ED)" <Julian.Scarlett@sheffield.gov.uk>
cc: <w3c-wai-ig@w3.org>
Message-ID: <Pine.LNX.4.30.0201150736510.20590-100000@tux.w3.org>
Hmmm. If your images require being viewed in colour, then you have a poblem,
assuming you don't have another way tyo work out what they are conveying. For
example, if they are in black and white is it still possible to understand
them?

Alternatively maybe the pointer shouldbe to 2.2 ensuring there is sufficient
contrast (this probably amounts to the same thing really).

Chaals

On Tue, 15 Jan 2002, Scarlett Julian (ED) wrote:

  I've just run a AAA Bobby test on a page and although it passed it included
  the usual user checks on colour and images conveying information. However it
  flagged all lines with <img> in the section about using colour to convey
  information as well as that about using images.

  If you use color to convey information, make sure the information is also
  represented another way.
  <http://bobby.cast.org:80/bobby/html/en/gls/g245.html> (5 instances)
  Line 26: <div class="imageplacer"><a
  href="http://www.sheffield.gov.uk/"><img src="img/scclogohome.gif"
  width="90" height="70" alt="Sheffield City Council Logo - hyperlink to
  Sheffield City Council home page " border="0"></a>.</div>
  Line 38: <img src="img/grad_lft.jpg" width="100%" height="5" alt=""> <br>
  Line 39: <div style="height: 280; width: 400; border: none; float:
  right"><img src="img/education.jpg" width="300" height="211" alt="Primary
  school children using modelling clay in a classroom">
  Line 78: <div style="height: 280; width: 400; border: none; float: right;
  margin-right: 5%"><img src="img/education2.jpg" width="350" height="238"
  alt="Primary school children playing basketball."></div>
  Line 121: <div align="right"><img src="img/grad_rht.jpg" width="100%"
  height="5" alt=""><a name="4"></a>.
  If an image conveys important information beyond what is in its alternative
  text, provide an extended description.
  <http://bobby.cast.org:80/bobby/html/en/gls/g12.html> (5 instances)
  Line 26: <div class="imageplacer"><a
  href="http://www.sheffield.gov.uk/"><img src="img/scclogohome.gif"
  width="90" height="70" alt="Sheffield City Council Logo - hyperlink to
  Sheffield City Council home page " border="0"></a>.</div>
  Line 38: <img src="img/grad_lft.jpg" width="100%" height="5" alt=""> <br>
  Line 39: <div style="height: 280; width: 400; border: none; float:
  right"><img src="img/education.jpg" width="300" height="211" alt="Primary
  school children using modelling clay in a classroom">
  Line 78: <div style="height: 280; width: 400; border: none; float: right;
  margin-right: 5%"><img src="img/education2.jpg" width="350" height="238"
  alt="Primary school children playing basketball."></div>
  Line 121: <div align="right"><img src="img/grad_rht.jpg" width="100%"
  height="5" alt=""><a name="4"></a>.

  I've looked at the relevant guidelines (WAI checkpint 2.1) and can see no
  reason for this.

  Can anyone enlighten me?

  tia
  Julian


  Julian Scarlett
  Web Design & Document Management System Officer
  PPU
  Education Directorate
  Sheffield City Council
  0114 2735721
  mob 07904914976
  julian.scarlett@sheffield.gov.uk

  The information in this email is confidential. The contents may not be disclosed or used by anyone other than the addressee.  If you are not the addressee, please tell us by using the reply facility in your email software as soon as possible. Sheffield City Council cannot accept any responsibility for the accuracy or completeness of this message as it has been transmitted over a public network.  If you suspect that the message may have been intercepted or amended please tell us as soon as possible.


-- 
Charles McCathieNevile    http://www.w3.org/People/Charles  phone: +61 409 134 136
W3C Web Accessibility Initiative     http://www.w3.org/WAI    fax: +1 617 258 5999
Location: 21 Mitchell street FOOTSCRAY Vic 3011, Australia
(or W3C INRIA, Route des Lucioles, BP 93, 06902 Sophia Antipolis Cedex, France)
Received on Tuesday, 15 January 2002 07:38:06 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 19 July 2011 18:14:00 GMT