Real-time events

I had an action item to see if our new definition for Real-time would work.

 

Here are the places we use the term  (the first one is actually not a use of
real-time events)

 

1.2.3 Real-time captions
<http://www.w3.org/WAI/GL/WCAG20/appendixA.html#captionsdef>  are provided
for live multimedia
<http://www.w3.org/WAI/GL/WCAG20/appendixA.html#multimediadef> . [How
<http://www.w3.org/WAI/GL/WCAG20/WD-UNDERSTANDING-WCAG20-20060117/Overview.h
tml#media-equiv-real-time-captions>  to meet 1.2.3]

 

2.2.1 For each time-out that is a function of the content, at least one of
the following is true: [How
<http://www.w3.org/WAI/GL/WCAG20/WD-UNDERSTANDING-WCAG20-20060117/Overview.h
tml#time-limits-required-behaviors>  to meet 2.2.1] 

*         the user is allowed to deactivate the time-out or; 

*         the user is allowed to adjust the time-out over a wide range which
is at least ten times the length of the default setting or;

*         the user is warned before time expires and given at least 20
seconds to extend the time-out with a simple action (for example, "hit any
key") and the user is allowed to extend the timeout at least 10 times or;

*         the time-out is an important part of a real-time event (for
example, an auction), and no alternative to the time-out is possible or;

*         the time-out is part of an activity where timing is essential
<http://www.w3.org/WAI/GL/WCAG20/appendixA.html#activity-timingdef>  (for
example, competitive gaming or time-based testing) and time limits can not
be extended further without invalidating the activity.

 

2.2.4 Except for real-time events
<http://www.w3.org/WAI/GL/WCAG20/appendixA.html#real-time-eventsdef> ,
timing is not an essential part of the event or activity presented by the
content. [How
<http://www.w3.org/WAI/GL/WCAG20/WD-UNDERSTANDING-WCAG20-20060117/Overview.h
tml#time-limits-no-exceptions>  to meet 2.2.4]

 

 

The new definition is

 

real-time events

events that are live 

 

 

Interesting.  Should we just plug in "live events"?    (or would we need to
define that)

 

 


Gregg

------------------------

Gregg C Vanderheiden Ph.D. 
Professor - Depts of Ind. Engr. & BioMed Engr.
Director - Trace R & D Center 
University of Wisconsin-Madison 
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