Definition: time-dependent presentation

I am cross posting because this is a WCAG 2.0 definition that needs some
Currently in the latest WCAG 2.0 Draft "time-dependent presentation" is
defined as below......


Definitions (informative)
time-dependent presentation

(1)A time-dependent presentation is a presentation which
is composed of synchronized audio and visual tracks (e.g., a movie), 

(2)a presentation which requires the user to respond interactively at
specific times in the presentation.


.......I think that the (2) is a definition of "response time dependent
presentation", rather than "time-dependent presentation".  The response
time issue is very important, but different.

Also, I think it would be a good idea to provide language that includes
other sense modalities (tracks).  I realize that it is a bit premature
to include "synchronized smell" and "synchronized vibration" tracks,
but, I think we should have language that covers this eventuality.

Katie Haritos-Shea

Internet/Software/Device Accessibility and Standards


"The best and most beautiful things in the world
     cannot be seen or even touched.
    They must be felt with the heart."
                - Helen Keller

Received on Thursday, 20 June 2002 12:57:16 UTC