Basic XML Message Format
Trans Ref Block - contains information which describes the IOTP Transaction and the IOTP Message.
Signature Component - contains digital signatures. Signatures may sign digests of the Trans Ref Block and any Trading Component in any IOTP Message in the same IOTP Transaction.
Transaction Id Component - uniquely identifies the IOTP Transaction. The Trans Id Components are the same across all IOTP messages that comprise a single IOTP transaction.
Message Id Component - identifies and describes an IOTP Message within an IOTP Transaction
Certificate Component. Used to check the signature.
Signature Block (optional) - contains one or more Signature Components and their associated Certificates
THE ACTUAL DATA ... can be ANY thing, e.g Trading Components ...