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Re: Preparation for 27 April teleconference [Was Re: AGENDA: W3C WAI User Agent Telecon 27 April 2000]

From: Ian Jacobs <ij@w3.org>
Date: Thu, 27 Apr 2000 01:48:12 -0400
Message-ID: <3907D49C.4A65100@w3.org>
To: Charles McCathieNevile <charles@w3.org>
CC: Al Gilman <asgilman@iamdigex.net>, w3c-wai-ua@w3.org, w3c-wai-pf@w3.org
Charles McCathieNevile wrote:
> 
> The piece that is missing is easy access to marked-up semantics. For example,
> the fact that something has been marked as an address, or a chapter title, or
> a summary or abstract. There may be no equivalence, there is just information
> that can be used.

"Easy access to marked-up semantics" is the rest of the guidelines,
in my opinion. I don't think that should be a checkpoint on its own.

 - Ian

 
> All data is data, but some data as expressed is intended to be meaningful to
> the reader (the role of an element, the content of an alternative, etc) and
> some is intended to be processable by a machine (the URI from which an
> equivalent can be fetched, the RDF property that signifies a role according
> to a machine-interpreted scheme, etc.)
> 
> cheers
> 
> Charles McCN
> 
> On Wed, 26 Apr 2000, Ian Jacobs wrote:
> 
>   Al Gilman wrote:
>   >
>   > At 10:18 PM 2000-04-25 -0400, Ian Jacobs wrote:
>   > >   Proposal:
>   > >
>   > >   1) Leave 2.1 checkpoint text the same.
>   > >      ("Make available all content, including equivalent
>   > >        alternatives for content.")
>   > >   2) Require that for content known by specification to
>   > >      be for users (including information in style sheets),
>   > >      that a document source view does not suffice.
>   >
>   [snip]
>   > "What is for display" is view-specific.  Not document-information-generic.
>   >
>   > "What is for the user" is not a valid concept in the Universal Access
>   > architecture.  It is a residue of "view chauvenism;" someone's assumption
>   > as to what view the user is using.  All the properties are informative, and
>   > may be exposed in the over-the-wire encoding as text or (where available)
>   > in a friendlier transform of that encoding.
> 
>   Similarly, in another email [1] you write:
> 
>      "There is no fundamental semantic difference between what is
>       called data vs. metadata.  They both play the same role as
>       bearers of information  Semantically, it is all just
>       one class of data.  This is a little-understood fact of
>       information science."
> 
>   I think that we should focus on one particular view of
>   the data: the author's view of what pieces of content are
>   equivalent. The author marks up these pieces in a way that
>   allows user agents to recognize the pieces as equivalent. I think
>   the Working Group wants those equivalents to be easily
>   interchangeable or reachable in the same view.
> 
>   Proposal (both P1):
> 
>   2.1.a Provide easy access to all equivalents.
> 
>    The equivalents could be rendered in the same viewport, through
>    tool tips, by querying selected elements for attribute values,
>    etc. A document source view would not meet this requirement since
>    it would not be easy for most users. I don't think that it should
>    be a requirement that all equivalents be rendered in the same
>    viewport since that may not help some users, and some users may
>    want more than one of the equivalents rendered at a given moment.
>    Again, it's understood here that an "equivalent" is one that
>    the user agent can recognize. It's also understood that this
>    means "access through the UI" (which will be stated elsewhere).
> 
>   2.1.b Provide access to all content.
> 
>    A document source view would meet this requirement, though
>    a structured navigation view would be better. All content
>    need not be available in one view (though that's the easiest to
>    do). All content need not be available in every view.
> 
>   Am I missing any important pieces?
> 
>    - Ian
> 
>   [1] http://lists.w3.org/Archives/Public/w3c-wai-ua/2000AprJun/0210.html
>   --
>   Ian Jacobs (jacobs@w3.org)   http://www.w3.org/People/Jacobs
>   Tel:                         +1 831 457-2842
>   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

-- 
Ian Jacobs (jacobs@w3.org)   http://www.w3.org/People/Jacobs
Tel:                         +1 831 457-2842
Cell:                        +1 917 450-8783
Received on Thursday, 27 April 2000 01:48:36 GMT

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