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Re: Checkpoint 2.2 (timed input): Examples of "required user input"?

From: Jon Gunderson <jongund@uiuc.edu>
Date: Mon, 26 Feb 2001 11:01:13 -0600
Message-Id: <4.3.1.2.20010226104800.031478b8@staff.uiuc.edu>
To: Ian Jacobs <ij@w3.org>, w3c-wai-ua@w3.org
I would propose we change the wording to say:

<OLD>
2.4 For content that requires user input within a time interval controlled 
by the user agent, allow configuration to make the time interval "infinite" 
(i.e., pause automatically at the beginning of each time interval where 
user input is required, and resume automatically after the user has 
explicitly completed input). [Priority 1]
</OLD>

<NEW>
2.4 For content that is available for user input within a time interval 
controlled by the user agent, allow configuration to make the time interval 
"infinite" (i.e., pause automatically at the end of each time interval 
where user input is available, and resume automatically after the user has 
explicitly completed input or the user chooses not to select any of the 
timed input options). [Priority 1]
</NEW>

I think this was more my understanding of what we wanted.  I don't know of 
any markup that would indicate to a user agent that an input or user 
response was "required".

Jon



   For content that requires user input within a time interval
>   controlled by the user agent, allow configuration to make the time
>   interval "infinite" (i.e., pause automatically at the beginning of
>   each time interval where user input is required, and resume
>   automatically after the user has explicitly completed
>   input). [Priority 1]
>
>Question: What examples do we have where the user agent
>can recognize that content requires user input within a time
>interval?
>
>I think I have one example, from section 4.5.2 of the SMIL 1.0
>specification [2]. In this example, links only "last" for the time
>indicated by the "begin" and "end" attributes:
>
><video src="http://www.w3.org/CoolStuff">
>   <anchor href="http://www.w3.org/AudioVideo" begin="0s" end="5s"/>
>   <anchor href="http://www.w3.org/Style"      begin="5s" end="10s"/>
></video>
>
>The combination of active element plus time interval means that user
>interaction is limited in time. However, it is not clear to me that
>"user input is required within a time interval" in this case.
>Nothing that I can see requires the user to activate that
>particular link.

JRG: From my understanding is that it should be phrased "user

>There may be cases where user input truly is "required" within a given
>time interval, but I don't have any examples of those. Perhaps it's
>possible for the user agent to open timed user prompts, but I don't
>know how that's done by the author (I don't know enough javascript).
>
>I do not think that it's our intention to limit this checkpoint
>to cases where user input is "required", only where user
>interaction is available. I think that checkpoint 2.2 needs to
>broadened to something like this:
>
>   When active elements are only available for
>   a finite time interval controlled by the user agent,
>   allow configuration to make the time interval "infinite"
>   (i.e., pause automatically at the beginning of
>   each time interval where user input is required, and resume
>   automatically after the user has explicitly completed
>   input). [Priority 1]
>
>  -Ian
>
>[1] http://www.w3.org/WAI/UA/WD-UAAG10-20010126/
>[2] http://www.w3.org/TR/1998/REC-smil-19980615
>
>--
>Ian Jacobs (jacobs@w3.org)   http://www.w3.org/People/Jacobs
>Tel:                         +1 831 457-2842
>Cell:                        +1 917 450-8783

Jon Gunderson, Ph.D., ATP
Coordinator of Assistive Communication and Information Technology
Division of Rehabilitation - Education Services
MC-574
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, 26 February 2001 11:59:28 GMT

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