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  • From: Jonathan Borden <jborden@m...>
  • To: "Bullard, Claude L (Len)" <clbullar@i...>,Rick JELLIFFE <ricko@g...>
  • Date: Fri, 27 Oct 2000 11:19:36 -0400

Bullard, Claude L (Len) wrote:

> Ok.  Sure and you are right.  OTOH, that
> seems to link back to the discussion
> Martin and Steve and I are having:  are
> business "rules" just nodes in a separate
> grove?  I guess it can be done, but I
> doubt OOPMen will give up APIs anytime soon.
>

Or nodes in a subtree of the same grove... in fact as I develop the XSet
property set description of XML 1.0, the "constraints" labelled "well-formed
constraint" or "validity constraint" are often expressable as an XPath
expression ala Schematron, so indeed these constraints would map to a
Schematron subtree on the property set. These constraints turn out to be by
*far* the most difficult part of XSet which was otherwise straightforward
given the existence of the EBNF productions in XML 1.0.

Jonathan Borden
The Open Healthcare Group
http://www.openhealth.org



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