6. The system of claim 5 , wherein the intermediary data structure uses an XML query language for constraints and enforces context specific constraints on the data types in the XML schema.
6. The system of claim 5 , wherein the intermediary data structure uses an XML query language for constraints and enforces context specific constraints on the data types in the XML schema. 8. The system of claim 6 , wherein the service interface is a Representational State Transfer (REST) web service.