[TECHS] Rough draft of technique and test for use of abbr element

Here is a reworked HTML technique for the use of the <abbr> element to 
mark up abbreviations.  I have made some proposals for when the 
abbreviation element should be used. 

1. abbreviations should be marked on the first occurrence of the delivery 
unit.
2. abbreviations should be marked after each named anchor in the delivery 
unit.
3. Best practice is to mark up ALL abbreviations since XTHML 2 is 
recommending this.  There are many that believe that all abbreviations 
should be marked in the document.  I am reluctant for WCAG to enforce this 
since it has a big impact on existing content and on tool vendors.  Thus, 
I suggest marking every occurrence as a best practice and look towards the 
future with "enforcement" in XHTML 2. 

I also removed the information from this technique about using the abbr 
attribute in table headers.  I believe that belongs in a separate 
technique and will propose one.

I took a stab at creating a test for this technique.  Both the proposed 
test and technique are attached.

 
Becky Gibson
Web Accessibility Architect
                                                       
IBM Emerging Internet Technologies
5 Technology Park Drive
Westford, MA 01886
Voice: 978 399-6101; t/l 333-6101
Email: gibsonb@us.ibm.com