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Re: ANN: owl.dtd

• To: Arjun Ray <aray@n...>
• Subject: Re: ANN: owl.dtd
• From: John Cowan <cowan@m...>
• Date: Tue, 27 May 2003 07:40:16 -0400
• Cc: xml-dev@l...
• In-reply-to: <6gm4dv83qak5f9tdkjs0ujp2pi9o3j5df5@4...>
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Arjun Ray scripsit:
> John Cowan <cowan@m...> wrote:

> | The RDF/XML syntax is designed to minimize the Hamming distance between
> | any fairly well designed data-oriented XML and valid RDF.
> 
> An example demonstrating this assertion would be enlightening.  Right now,
> I'm not sure I understand how "Hamming distance" applies.  

See http://www.xml.com/pub/a/2002/10/30/rdf-friendly.html .  I simply
mean that it is intended to be fairly easy to evolve one's document type
to make it RDF-compatible.

> All the more so because I don't find any evidence of "design" in RDF/XML
> syntax: on the contrary it's all too obvious that some people were in an
> inordinate rush to start tossing taggery into Netploder.  

Well, it looks designed to me, although there are some deficiencies,
most of which have been rectified by the new WD.

> When it - naturally, later - came to light that DTDs probably wouldn't
> "allow" such happy-go-taggy insouciance, the tack to take became, "Well,
> this DTD stuff is no damn good."  BTDT.

DTDs are inherently context-insensitive, and the only way to achieve the
useful approximation required was to have a great deal of context
sensitivity.

> Yes. and that's why I find the claim of maximum flexibility dubious.

If RDF/XML had been designed simply as a syntax for capturing the RDF
knowledge model, like XTM, it would be a good deal more rigid and "meta"
than it is.  But that wasn't the idea.

-- 
John Cowan      jcowan@r...        http://www.ccil.org/~cowan
        Is it not written, "That which is written, is written"?

• Follow-Ups:
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• References:
  • ANN: owl.dtd
    • From: "Roger L. Costello" <costello@m...>
  • Re: ANN: owl.dtd
    • From: "Jonathan Borden" <jonathan@o...>
  • Re: ANN: owl.dtd
    • From: "Rick Jelliffe" <ricko@a...>
  • Re: ANN: owl.dtd
    • From: Arjun Ray <aray@n...>
  • Re: ANN: owl.dtd
    • From: John Cowan <cowan@m...>
  • Re: ANN: owl.dtd
    • From: Arjun Ray <aray@n...>

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