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Re: User Interface Context

From: Gregg Vanderheiden <gv@trace.wisc.edu>
Date: Thu, 12 Jul 2012 17:31:20 +0200
To: "Bailey, Bruce" <Bailey@Access-Board.gov>
Cc: "Hoffman, Allen" <Allen.Hoffman@HQ.DHS.GOV>, Andi Snow-Weaver <andisnow@us.ibm.com>, "public-wcag2ict-tf@w3.org" <public-wcag2ict-tf@w3.org>
Message-id: <853770B9-2D69-4739-9795-F3054883D0A3@trace.wisc.edu>
A product is a set of user interface contexts 
But so are other things.  If the definition of product was a set of uics you would be correct.  but it is only an example.  You cant  plug an example in and call it self referential. 

so it becomes 

 User Interface Context == set of user interface elements and the presented information within a [an entity with defined borders that contains User Interface Contexts]  that can be accessed using only navigation commands.

you will note that that phrase is not actually elementally defining the UIC but rather limiting it.   ALSO you will note that the definition is not of a UIC but of a UIC (by one author).

AH I see the problem.  In my original posting to the list I pointed to our definition which was  "User Interface Context (by one author)".   When people picked it up they dropped the (by one author) but kept the  phrase "Within a product" which limited it to one author.  And I didnít notice the drop.  

if you take the (by one author) out -- you take the clause out -- and you get

User Interface Context (by one author)
== set of user interface elements and the presented information, within a product, that can be accessed using only navigation commands.

NOTE: A product is an example of something with defined scope that contains user interface contexts
 
and 

User Interface Context
== set of user interface elements and the presented information that can be accessed using only navigation commands.

so neither is self referential 


Thanks for highlighting that the phrase "(by one author)'   was dropped and is an important part of this to keep UICs from bleeding out to contain the whole UIC (which includes all programs available via navigation   (and perhaps the input devices as well). 



Gregg
--------------------------------------------------------
Gregg Vanderheiden Ph.D.
Director Trace R&D Center
Professor Industrial & Systems Engineering
and Biomedical Engineering
University of Wisconsin-Madison

Co-Director, Raising the Floor - International
and the Global Public Inclusive Infrastructure Project
http://Raisingthefloor.org   ---   http://GPII.net








On Jul 12, 2012, at 5:02 PM, Bailey, Bruce wrote:

>> Web page == User Interface Context == set of ...
>> Web pages == User Interface Contexts == sets of ...
>> Web page within a set of Web pages == User Interface Context within a set of User Interface Contexts
>> That is why we suggested using "product" for the "set of User Interface Contexts" because that is what the set is.
> 
> So:
> Web page within a set of Web pages == User Interface Context within a product == set of ... within a set of sets of ...
> 
> And:
> multiple Web pages within a set of Web pages == multiple User Interface Contexts within a product == multiple sets of ... within a set of sets of ...
> 
> With the simpler definition, this WAS feeling more workable to me, even with the set of sets.  (With my previous email, I think I was making the plural form more complicated than it needed to be.)  BUT as I tried to do the repeated substitutions, I notice that the simpler definition has a BIG problem!
> 
> User Interface Context == set of user interface elements and the presented information within a product that can be accessed using only navigation commands.
> 
> But a "product" is a "set of User Interface Contexts" so the simpler definition is self-referential:
> 
> User Interface Context == set of user interface elements and the presented information within a set of User Interface Contexts that can be accessed using only navigation commands.
> 
> (On a side note, I agree with Andi's concern that "product" seems too COTS oriented.  Can we substitute "product or service" for "product" -- assuming we find a way out the recursive loop?)
> 




Received on Thursday, 12 July 2012 15:31:49 GMT

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