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Re: A Crack at an EARL Vocabulary

From: Charles McCathieNevile <charles@w3.org>
Date: Tue, 6 Feb 2001 20:22:49 -0500 (EST)
To: "Leonard R. Kasday" <kasday@acm.org>
cc: "Sean B. Palmer" <sean@mysterylights.com>, <w3c-wai-er-ig@w3.org>
Message-ID: <Pine.LNX.4.30.0102062016580.15250-100000@tux.w3.org>
On Mon, 5 Feb 2001, Leonard R. Kasday wrote:

  I think it's better to distinguish between an assertion and a comment.

  A comment would be free form text

  An assertion would be a logical construct that carries semantics.
CMN so far, so good
LK  so for example if we have the following statements (dropping namespaces
  the moment)

  :len :asserts {:apple color red} .
  :sean :asserts {:apple :color :green} .

  a logic engine properly programmed to know what "asserts" means would find
  a contraction.

  On the other hand if we have

  :len :comments "apple color red" .
  :sean :comments "apple color green" .
CMN What if we had

:len :asserts {:apple :comment "well, it's really sort of a reddish yellow
with a touch of violet haze"} .

or (I forget the notation, but something like

:len :asserts
  about :apple ...

      :comment "well, sort of green, but I meant to say purple"


typically I imagine one person will be asserting a whole collection of
stuff. And so will an average tool, although it won't want to claim
responsibility for things the author asserted and it doesn't know about -
that's a quality control issue though.



  a logic engine would find no contraction (assuming the logic engine doesn't
  parse and understand strings).

  BTW, comments are typically about something.  Which gives us more info than
  can fit in a triple. So what we really would need is something like

      :type :comment;
      :madeby :len;
      :appliesto :sometag;
      :contents "apple color green"


  At 04:19 PM 2/5/01 +0000, Sean B. Palmer wrote:
  > >   earl:asserts (x asserts y)
  > > CMN Use DC:author
  >I evolved that from Len's e:says. I think it is analagous to earl:comment,
  >so there is probably no need for it in actual fact.

  Leonard R. Kasday, Ph.D.
  Institute on Disabilities/UAP and Dept. of Electrical Engineering at Temple
  (215) 204-2247 (voice)                 (800) 750-7428 (TTY)
  http://astro.temple.edu/~kasday         mailto:kasday@acm.org

  Chair, W3C Web Accessibility Initiative Evaluation and Repair Tools Group

  The WAVE web page accessibility evaluation assistant:

Charles McCathieNevile    http://www.w3.org/People/Charles  phone: +61 409 134 136
W3C Web Accessibility Initiative     http://www.w3.org/WAI    fax: +1 617 258 5999
Location: I-cubed, 110 Victoria Street, Carlton VIC 3053, Australia
(or W3C INRIA, Route des Lucioles, BP 93, 06902 Sophia Antipolis Cedex, France)
Received on Tuesday, 6 February 2001 20:22:54 UTC

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