Checkpoint 3.3 - XML/XSLT
Allow for user control of interaction timing - rate of change, external events triggering document changes, etc.
XML Accessibility Guidelines
Guideline 3: Design an accessible user interface
Where timed events are not able to be controlled by the user, some users may not be able to react within the timeframe to take advantage of the task offered.
Ensure that the XML grammar is constructed to allow for user control of interaction timing
Consider element attributes to target a pause facility or to be able to set a rate before changing to allow the user to control the interactions. Do not set fixed time period time-outs.
The original source of this information is located on the W3C web site (www.w3.org/TR/xag#cp3_5)