45. The system as defined in claim 44 , wherein the document stored in XML form is parsed by an XML parser to create the internal representation.
45. The system as defined in claim 44 , wherein the document stored in XML form is parsed by an XML parser to create the internal representation. 46. The system as defined in claim 45 , wherein the internal representation level of the document is transformed to a subscription-level document by applying a subscription-level transform to the internal representation.