Techniques sorting notes
- 9.3: Text for images used as links
- sufficient in combination with (to be written) general techs
- works today
- baseline ideal
- 9.4: Image and text links side by side
- sufficient
- works today, though there are sometimes UA issues with doing this without impacting visual design. additional CSS techniques needed? @@ Tom to collect examples.
- baseline ideal for HTML, combined with CSS technique makes it more ideal.
- this also maps to 1.1 L1 #3. at level 1, this would be advisory because it's a constraint on the visual design. - need to document user agent issues here - in some cases, making this technique work can be difficult - goal for CSS techniques is to provide techniques that make it less of an issue. this technique is important, but turns out there are ways to do this technique incorrectly @@ examples need cleanup such that they include table information to show how this can be a problem @@ need reference to (to be written) CSS technique for this.
- 10.4: Short text alternatives for object elements (future)
- not sufficient, because not supported
- does not work today, thus a future technique
- this is the baseline ideal, spec-conformant solution, but UAAG doesn't require rendering alternatives correctly. Transition issue here in that we have been recommending that people do this since WCAG 1.0.
- 10.5: Non-explicit text alternatives for object
- sufficient techniques
- works today , though not baseline ideal
- @@ global search and replace of dlink with link to external description in techniques docs
- 11.1: Use client side image map
- baseline ideal (if the image map is simple)
- numerous issues here, we need to describe providing alternates to complex imagemaps
- 11.2: Text links for server side image maps.
- sufficient, if server-side image map is simple
- 11.3: Redundant text links for client side image maps (deprecated)
- works today
- not ideal
- not sufficient, because if you only did this, you'd fail (not standard)
- technique is both optional and deprecated
- 11.4: Text alternatives for client-side image maps
- sufficient techniques
- works today (though alternatives are not displayed when images are off)
- baseline ideal
- 12.3: Alternative content for programmatic objects
- see ednote
- seems to overlap with 10.5
- 12.4: Text and non-text alternatives for object
- not sufficient (it doesn't work)
- seems to be ideal
- use of this technique would not cause you to fail
- overlaps with 10.4
- techs need to make it clear that at the end of the chain of non-text alternatives for non-text content, you get a text alternative.
- 12.5: Alternative content for applet
- does not work today
- seems to be ideal for longer descriptions
- deprecated for current specifications (transitional for HTML 4)
- 12.6: Alt text for applet
- sufficient
- works today
- also transitional
- 12.7: Alternative content for embed
- sufficient
- users can't get to noembed content reliably in current AT
- baseline ideal - ideal in terms of using embed, but use of embed itself is not ideal since it's not in spec
- 12.8: Alt text for embed
- less ideal than noembed
- @@ user agent testing needed on this - not sure if it works today
- 14.4: Writing for browsers that do not support FRAME
- sufficient if frameset is simple
- works today , though so does frame titles
- would not cause you to fail SC
- relates to baseline - if you have a frame-based web application, you could use noframes to provide an equiv. alternative
- 15.7: Text alternatives for submit buttons
- sufficient
- baseline ideal
- works today
- 16.1: Text alternatives for scripts
- 16.2: JavaScript URLs
- @@ mapping needs work
- potentially a baseline issue (noscript for this use of script doesn't make sense)
- 16.3: Scripted form submission
- many issues with mapping, etc. on this one