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Re: Suggested note to Checkpoint 5.5 on timeliness

From: Ian Jacobs <ij@w3.org>
Date: Fri, 03 Mar 2000 10:57:00 -0500
Message-ID: <38BFE0CC.784E4A2B@w3.org>
To: Jon Gunderson <jongund@ux1.cso.uiuc.edu>
CC: w3c-wai-ua@w3.org
Jon Gunderson wrote:
> Note to checkpoint 5.5: This checkpoint is designed to promote the use of
> APIs which provide efficient exchange of information between user agents
> and assistive technologies.  Notably in multi-tasking operating systems
> this requires the ability to access the DOM and other Accessibility APIs in
> process.  In process communication eliminates the time delays which occur
> with out-of-process communication between applications.  The time delays
> can result in slower response to user actions or potentially the user
> missing important information.

I object. This says "requires", which I don't think we agreed to.
I though we agreed that in-process communication should be 
highlighted as a technique. I propose the following edit:

This checkpoint is designed to reduce delays that an assistive
technology user might experience due to communication overhead.
Timely exchange is import for preventing loss of information,
a risk when changes in content occur faster than the
exchange with the assistive technology. One effective technique 
for providing timely access is to allow assistive technologies to run 
in the same process space as the user agent, thus eliminating
inter-application communication delays.

 - Ian
Ian Jacobs (jacobs@w3.org)   http://www.w3.org/People/Jacobs
Tel/Fax:                     +1 212 684-1814 or 212 532-4767
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Received on Friday, 3 March 2000 10:57:17 UTC

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