Charlie Kaiman ckaiman at i3solutions.com
Thu Jun 10 15:44:39 BST 1999

I received some good insight into this just yesterday:

[Which you should use depends upon] when you need it and what you need it 
to do.  If you need to reach the most parsers, and are willing to give up 
datatypes and
namespace support, use DTDs.  We are recommending that many of our clients 
use XML-Data Reduced, as documented at 
http://msdn.microsoft.com/xml/XMLGuide/schema-overview.asp because this 
gives you datatypes and namespace support, though this is currently 
supported only in shipping Microsoft and Datachannel parsers.  If you can 
wait six months to a year, the W3C is working on a new schema language that 
may or may not be similar to XML-Data Reduced.

Hope that helps you.

Charlie Kaiman

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