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RE: Media types

From: Mike Dierken <mike@dataconcert.com>
Date: Tue, 15 Jan 2002 10:24:40 -0800
Message-ID: <2AE31649CF989F4FB354F6D95EB0CE6E4D6752@xmlfmail.xmlfund.com>
To: www-tag@w3.org, xml-dist-app@w3.org

What are the things we are trying to describe here?
It looks to me like there are three concepts:
 - syntax (its xml, or binary, or etc.)
 - schema (the names and/or structures that are obeyed)
 - model (the particular structural rules for this instance of content, when
schema has choices)

I'm not as concerned about how these are represented, and where they show up
in a message, as I am about what we are trying to describe. Perhaps schema
and model are the same thing - perhaps there is a 'usage' slot, but this is
the level of question I'd like to see answered.

Mike


> -----Original Message-----
> From: Mark Baker [mailto:distobj@acm.org] 
> Sent: Tuesday, January 15, 2002 7:44 AM
> To: paul@prescod.net
> Cc: www-tag@w3.org; xml-dist-app@w3.org
> Subject: Re: Media types
> 
> 
> > Consider this example from the XSLT specification:
> > 
> > <html xsl:version="1.0"
> >       xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> >       xmlns="http://www.w3.org/TR/xhtml1/strict">
> >   <head>
> >     <title>Expense Report Summary</title>
> >   </head>
> >   <body>
> >     <p>Total Amount: <xsl:value-of 
> select="expense-report/total"/></p>
> >   </body>
> > </html>
> > 
> > It's a perfect example. This document is logically XSLT, not HTML.
> 
> In this example, I'd say it's both HTML and XSLT.  However, 
> HTML has the advantage in determining how that XSLT should be 
> interpreted, since it's the container.
> 
> For example, if HTML had an element called "do-not-process" 
> that meant that any content whtin should not be dispatched to 
> alternate processors, and that your XSLT was within this 
> element, would you still say it was a stylesheet?
> 
> I agree with TimBL when he says;
> 
> "The significance of any nesting of one withing the other is 
> to be defined by the nesting (outermost) specification [...]"
> 
> (from http://lists.w3.org/Archives/Public/www-tag/2002Jan/0081.html )
> 
> MB
> -- 
> Mark Baker, Chief Science Officer, Planetfred, Inc.
> Ottawa, Ontario, CANADA.      mbaker@planetfred.com
> http://www.markbaker.ca   http://www.planetfred.com
> 
Received on Tuesday, 15 January 2002 13:25:30 GMT

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