XML trade off 1 - DTD vs XML Schema

Simon St.Laurent simonstl at simonstl.com
Fri Jul 16 22:16:25 BST 1999

At 01:29 PM 7/16/99 -0400, DuCharme, Robert wrote:
>As far as I can tell, the W3C XML Schema proposal includes all the
>features of XML 1.0 DTDs, so it should be possible to automate migration
>of DTDs. Whether W3C XML Schemas completely replace XML 1.0 DTDs after
>the Schema proposal becomes a Recommendation is a tougher question.

Nothing in XML seems to happy as quickly as I once thought it would.

I'd say DTDs have at least another few years of active use in them.  I
suspect (though it isn't certain) that while they're less powerful than
schemas, they involve less processing as well.  For some situations, even
'non-legacy' ones, that may insure a very long life.

Simon St.Laurent
XML: A Primer / Building XML Applications
Inside XML DTDs: Scientific and Technical
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