Tuscany Composite validation

[Dan Becker]

As many of you know, I speak with the Eclipse.org STP news group and try 
to help with the support for Tuscany development in the STP tools.

One recent question I think I answered, but would like to bring up and 
verify with the Tuscany group. Our SCA composite files are validated 
through the XSD schema "http://www.osoa.org/xmlns/sca/1.0"; which is an 
OSOA specification.

Tuscany supports a number of additional elements and attributes mostly 
for extensions such as new bindings and implementation types (e.g. 
JSONRPC, Atom, Spring, etc.) Are these additional elements and 
attributes validated via an additional Tuscany schema XSD? Or are most 
of the extensions validated in the validation/resolve code when a 
contribution is read and resolved? Or other? I picked the middle choice 
(validated in the resolution phase by Tuscany code), but I may be wrong. 
Any thoughts?
--
Thanks, Dan Becker