[dsdl-discuss] SML adopts Schematron

Microsoft, IBM, Sun, Intel, HP, BEA and Cisco are adopting Schematron
whole, as part of their Service Modeling Language, they announced
yesterday. I dont' really get what SML is used for: I think it might be
like WSDL but without the SOAP or WS-* implications, and so suitable for
POX systems and hardware interfaces, but I'm not sure.

SML has four parts:
  * A way of linking from elements to specs
  * A slight subset of XSD
  * Schematron
  * an extension of xsd key and keyref to include IDs in remote
documents. So you can treat the key or ID as a reference in a document
set rather than a document.

This last part might be a good candidate for part 6. I have not heard
anything back from the StaX people, so we might instead just seek out
the SML people tell them we would be willing to standardize their
extended key/keyref through DSSL. I think it meets the requirements of
being industry-proposed, built on existing standards (XSD, Xpath),
better than the XSD capability, and certainly useful.

Cheers
Rick

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