9. The method according to claim 7 , wherein the first message field definition is mapped by a first one of the unique identifiers to a first one of the data components and the second message field definition is mapped by a second one of the unique identifiers to a second one of the data components different from the first data component.
7. The method according to claim 2 , wherein the mapping is a field level mapping linking a first one of the message field definitions to a first one of the data field definitions and a second one of the message field definitions to a second one of the data field definitions.