[
Lists Home |
Date Index |
Thread Index
]
- From: David Megginson <david@megginson.com>
- To: "XML Developers' List" <xml-dev@ic.ac.uk>
- Date: Mon, 31 May 1999 14:43:33 -0400 (EDT)
Hunter, David writes:
>So why not have the namespace URL link to that DTD/Schema by
>convention? It would only be a convention, of course, it wouldn't
>really be worthwhile to try and enforce that, or to force all XML
>formats to have a DTD or Schema, but I'm sure it would be handy, and
>it would eliminate the problem of deciding which language to use for
>your documentation.
Member-confidentiality rules do not allow me to refer to the arguments
of other members of the now-defunct XML WG, but this topic did come up
(at length). My own argument was as follows:
1. there will not always be a 1:1 relationship between Namespaces and
schemas (my schema, for example, might reuse the semantics but not
the structure of elements from the HTML namespace); and
2. there will not always be a 1:1 relationship between documents and
schemas (you may apply various sorts of schemas to the same
document, say, one for structure (as in XML Schema), one for
semantics (as in RDF schemas), and another for company-specific
business rules.
Or, to put it in graphical terms (turn on your fixed-width fonts):
+--------+ +---------+
|Document|*---------------*|Namespace|
+--------+ +---------+
* *
| +------+ |
+--------*|Schema|*--------+
+------+
All the best,
David
--
David Megginson david@megginson.com
http://www.megginson.com/
xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo@ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)
|