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Re: Errors in Kendall Clark's xml.com article on QNames

• To: Eric van der Vlist <vdv@d...>
• Subject: Re: Errors in Kendall Clark's xml.com article on QNames
• From: ht@c... (Henry S. Thompson)
• Date: 13 Feb 2002 16:48:00 +0000
• Cc: xml-dev@l...
• In-reply-to: <3C6A7711.3030008@d...>
• References: <f5b1yfptrsa.fsf@c...> <3C6A7711.3030008@d...>
• User-agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Civil Service)

Eric van der Vlist <vdv@d...> writes:

> Henry S. Thompson wrote:
> 
>  > Why use two mechanisms to do the same thing,
> > namely establish ownership/semantic scope for names?
> 
> 
> To me, this is a design issue more than a practical one: namespaces
> belong to markup while QNames belong to applications.
> 
> 
> This is the same kind of question than:
> 
> - Why model communication protocols as layers?
> - Why defined private classes?
> 
> It's allways more concise to access private classes, methods and
> properties directly and to short-circuit the layers of a protocol...
> 
> 
> Allowing QNames creates a dependency between the applications and the
> markup which should not exist. It makes it more difficult to build
> applications relying on a "virtual XML" which is never serialized as
> XML.

Intriguing -- I would say exactly the opposite, i.e. that QNames provide a
uniform way to ensure that "virtual XML" (what I think of as the
type-enriched infoset) has (namespace name,local name) pairs in it
wherever you want them.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2001, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@c...
		     URL: http://www.ltg.ed.ac.uk/~ht/

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    • From: ht@c... (Henry S. Thompson)
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