- From: Michael Kay <mike@saxonica.com>
- Date: Thu, 30 Apr 2009 17:00:43 +0100
- To: "'Costello, Roger L.'" <costello@mitre.org>, <xmlschema-dev@w3.org>
> > I'm having a hard time seeing the usefulness of > vc:typeAvailable, vc:typeUnavailable, vc:facetAvailable, > vc:facetUnavailable, vc:minVersion, and vc:maxVersion. > > I can see its usefulness in future versions of XML Schema > (version 1.2, 1.3. etc) but I can't see its usefulness today. > > Does it have any usefulness today? If so, can you give me a > practical example please? > It's mainly there because people realized belatedly that it should have been in version 1.0. There is some optimism in some quarters that it will be retrofitted to those 1.0 processors that are still under active development, helping users to move forward to 1.1. It has been designed so that it would be conformant to the 1.0 spec to do so. Michael Kay http://www.saxonica.com/
Received on Thursday, 30 April 2009 16:01:24 UTC