Object Constraint Language, XML Schema, and WS-Policy?

Just got done reading Aaron Skonnard’s March 2004 MSDN Mag article, WS-Policy and WSE 2.0 Assertion Handlers, (sorry no link yet) and noticed that it is very similar to the ideas I had about adding OCL to XML Schema to implement business rules in things like strongly typed datasets.  Dare had commented on my post and in it mentioned that Aaron had wrote a MSDN article Extend the ASP.NET WebMethod Framework by Adding XML Schema Validation but Aaron’s new article seems to fit in even better.  Now all we have to do is to get both WS-Policy , XML Schemas and OCL to use the same assertion syntax, and it will make stuff a lot more portable (and easier).  I’m going to have to spend some time going over both of Aaron’s articles in detail and try to get some prototypes for people to play with (yeah, right, in all my free time).

DonXML Demsak