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RE: Status Updates for new draft

From: Jim Allan <jimallan@tsbvi.edu>
Date: Thu, 11 Dec 2008 14:32:51 -0600
To: "'Gregg Vanderheiden'" <gv@trace.wisc.edu>
Cc: <w3c-wai-ua@w3.org>
Message-ID: <00c201c95bcf$a393cc60$eabb6520$@edu>

Web Apps as User Agents stem from embedded video players or other objects.
These are user agents in their own right with their own user interface,
content, and in some cases their own DOM. 
Extending that concept just a bit. 
Consider an rss web-app or a blogging web-app. Each is web-based content so
must conform to WCAG20. Each is also a user agent that provides a user
interface that allows a user to interact with a defined set of web content.
The only way the user interacts with their web_blogging tool is using the
interface and controls provided by this web-based user-agent.  This
web-based user-agent just happens to use another user-agent as its platform.

Extending just a bit further...consider Google Chrome application windows
you can make a 'desktop' application of a web-app. The browser virtually
disappears, the only interface that user has to interact with the web-based
information is the web-application. 


-----Original Message-----
From: Gregg Vanderheiden [mailto:gv@trace.wisc.edu] 
Sent: Thursday, December 11, 2008 12:17 PM
To: Jim Allan
Cc: w3c-wai-ua@w3.org
Subject: Re: Status Updates for new draft


Interesting to ask if Web Apps are Web Content or User Agents.

  I had always thought of them as Web Content.    What are the  
thoughts that led them to be considered as User Agents?

(we are working on server based user agents -- but they function as  
virtual user agents to other content including Web Apps.  They aren't  
Web apps themselves)...

Gregg Vanderheiden Ph.D.
Director Trace R&D Center
Professor Ind and Biomed Engr
University of Wisconsin-Madison

On Dec 11, 2008, at 11:47 AM, Jim Allan wrote:

> This draft integrates changes made as a result of comments received  
> on the
> xxx Public Working Draft and also includes changes resulting from
> restructuring and updating the document to reflect changes in  
> technology.
> Substantial changes include:
> Principle 1: Comply with applicable specifications and conventions
> 	Guideline 1.1 and associated success criteria have been
> re-conceptualized to include web-based user-agents (web  
> applications) and
> ensure they conform to WCAG20.
> 	Guideline 1.2 and associated success criteria focus on operating
> system base user agents and ensure they conform to the standards and
> requirements of the operating system.
> PRINCIPLE 2. Facilitate programmatic access by assistive technologies
> 	All guidelines and success criteria reflect a total rewriting and
> restructuring that incorporates changes in technologies since UAAG10,
> specifically the use of accessibility architectures on native  
> platforms
> running user agents.
> PRINCIPLE 4. Ensure that the user interface is operable
> 	Guideline 4.1 Ensure full keyboard access. The working group has put
> considerable effort into overhauling keyboard accessibility. It  
> provides new
> success criteria derived from the review and gap analysis of other  
> keyboard
> accessibility requirements documents.
> The Working Group seeks feedback on the following points for this  
> draft:
>    * Are there concerns about the inclusion of web-applications as
> user-agents
>    * Does the inclusion of success criteria related to accessibility
> platform architectures provide sufficient guidance to user agent  
> developers
> when developing accessible user-agents?
>    * Is the guideline on keyboard access complete?
>    * Are there any other areas in which the guidelines may be lacking?
> Jim Allan, Accessibility Coordinator & Webmaster
> Texas School for the Blind and Visually Impaired
> 1100 W. 45th St., Austin, Texas 78756
> voice 512.206.9315    fax: 512.206.9264  http://www.tsbvi.edu/
> "We shape our tools and thereafter our tools shape us." McLuhan, 1964
Received on Thursday, 11 December 2008 20:39:53 UTC

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