Attributes with Intent (and namespaces)

MURATA Makoto murata at
Mon Jul 6 04:41:14 BST 1998


Thanks for providing details.  I now have better understanding 
of your argument.

james anderson wrote:
> 6. to accomplish this, the application will depend on functions of the form
>    (UniversalName) -> (Declaration + Behaviour)

I think we diverge here.  To implement this *function*, application programs 
have to know URI's specified in the namespace declaration.  In other words, 
developers of namespace-aware programs write:

(XML Browser)

	"If I encounter an element of the MathML URI, I invoke techexplorer".

(Search Engine)

	"I search for the first element of the DublinCore URI, and then examine 
	the author and title described in its subordinate elements."

Just in case you think that namespace declaration describes behavior:
A namespace declaration does not describe behavior.  (DTD's do not either, 
and probably schemas won't.)  It only provides a URI.  The rest is the task 
of application programmers.

Fuji Xerox Information Systems
Tel: +81-44-812-7230   Fax: +81-44-812-7231
E-mail: murata at

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