I argued against this, actually, because the types that are in the WSDL don't have any applicability outside of the WSDL. That said, if the rest of the group thinks that convention is enough to overlook that, I'm not going to complain. We're trying to avoid large changes like this so we can release the spec for public review, so my vote would still be to leave it alone regardless. Peter Vivian Li wrote:

Another suggestion while browsing the BES schema/wsdl, it might be easier to maintain if the data types in the schema and the wsdl are separated completely, e.g. move the "Message Types" in the schema section from the wsdl to the schema file, it has been kind of convention in all the other WGs.

Vivian