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- From: "Jonathan Borden" <jborden@mediaone.net>
- To: "Rick Jelliffe" <ricko@allette.com.au>, <xml-dev@ic.ac.uk>
- Date: Sat, 5 Jun 1999 13:05:37 -0400
Ouch!!
Why ought namespaces be dead? Is Biztalk that important? Just don't use
Biztalk or the XML Data namespace if you don't want it, this is a free WWW!
---------
> Both BizTalk and the recent XML Schema draft use the namespace identifier
as the
> schema identifier.
...
> In other words, namespaces are dead (for database documents) as ways of
uniquely
> naming elements independent of any other considerations. They are now
"name-in-a-particular-schema-in-a-particular-schema-language--spaces".
Not always. You can always use a "urn:" based namespace URI to prevent
linking the namespace to a schema.
>
> Congratulations to all concerned.
>
> The practical question is now what to do? Should we just lay down and die;
should
> we go back to architectural forms; should we invent a parallel namespace
PI that is
> concerned with uniquely identifying names and not with tieing elements to
a schema?
> The first thing that is required is for W3C to create a Schema PI, in a
similar
> fashion to the Stylesheet PI. In the absense of that mechanism, the
Devourers can
> excuse themselves that there is nothing else to use for invoking schemas
apart from
> namespaces.
Agreed. This is an easier to understand, more flexible solution which is
more akin to the present mechanism of associating a DTD to a document than
the proposed linkage to the namespace URI.
One issue to consider, however, is the impact of either mechanism of
schema/namespace association on how a document containing elements from
multiple namespaces ought be validated.
---------
Jonathan Borden
http://jabr.ne.mediaone.net
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