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Re: Suggested note to Checkpoint 5.5 on timeliness

From: Jon Gunderson <jongund@ux1.cso.uiuc.edu>
Date: Mon, 06 Mar 2000 11:19:14 -0600
Message-Id: <4.1.20000306104642.00af5150@staff.uiuc.edu>
To: "Hans Riesebos" <HRiesebos@alva-bv.nl>
Cc: <w3c-wai-ua@w3.org>
Hans,

1. Would a clause that said:

"One effective technique in operating sytems that use separate process
spaces 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"

2. Do you have any examples of what techniques would be useful on a
Macintosh operating system to support inter-process communication?

Thanks,
Jon


At 05:35 PM 3/6/00 +0100, Hans Riesebos wrote:
>I think that the "In process" must not be mentioned or at best be mentioned 
>in the techniques document (not in the guidelines). 
>Letting an AT in process is a potential security hole! Also, for the 
>Macintosh, there are no seperate process-spaces and therefore is in process 
>less meaningful.
>
>>>> Jon Gunderson <jongund@ux1.cso.uiuc.edu> 03/03/00 04:44PM >>>
>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.
>
>Jon
>
>Jon Gunderson, Ph.D., ATP
>Coordinator of Assistive Communication and Information Technology
>Chair, W3C WAI User Agent Working Group
>Division of Rehabilitation - Education Services
>College of Applied Life Studies
>University of Illinois at Urbana/Champaign
>1207 S. Oak Street, Champaign, IL  61820
>
>Voice: (217) 244-5870
>Fax: (217) 333-0248
>
>E-mail: jongund@uiuc.edu 
>
>WWW: http://www.staff.uiuc.edu/~jongund 
>WWW: http://www.w3.org/wai/ua 
>
>

Jon Gunderson, Ph.D., ATP
Coordinator of Assistive Communication and Information Technology
Chair, W3C WAI User Agent Working Group
Division of Rehabilitation - Education Services
College of Applied Life Studies
University of Illinois at Urbana/Champaign
1207 S. Oak Street, Champaign, IL  61820

Voice: (217) 244-5870
Fax: (217) 333-0248

E-mail: jongund@uiuc.edu

WWW: http://www.staff.uiuc.edu/~jongund
WWW: http://www.w3.org/wai/ua
Received on Monday, 6 March 2000 12:21:54 GMT

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