W3C home > Mailing lists > Public > w3c-wai-ua@w3.org > January to March 2000

Re: Suggested note to Checkpoint 5.5 on timeliness

From: Charles McCathieNevile <charles@w3.org>
Date: Sun, 5 Mar 2000 06:52:26 -0500 (EST)
To: Ian Jacobs <ij@w3.org>
cc: Jon Gunderson <jongund@ux1.cso.uiuc.edu>, w3c-wai-ua@w3.org
Message-ID: <Pine.LNX.4.20.0003050652170.21351-100000@tux.w3.org>
I agree with Ian.

Charles McCN

On Fri, 3 Mar 2000, Ian Jacobs wrote:

  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
  Cell:                        +1 917 450-8783

Charles McCathieNevile    mailto:charles@w3.org    phone: +61 (0) 409 134 136
W3C Web Accessibility Initiative                      http://www.w3.org/WAI
Location: I-cubed, 110 Victoria Street, Carlton VIC 3053
Postal: GPO Box 2476V, Melbourne 3001,  Australia 
Received on Sunday, 5 March 2000 06:52:28 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 7 January 2015 14:49:26 UTC