ISO 8583-1:2003, Financial transaction card originated messages - Interchange message specifications - Part 1: Messages, data elements and code values

ISO 8583-1:2003 specifies a common interface by which financial transaction card originated messages may be interchanged between acquirers and card issuers.It specifies message structure, format and content, data elements and values for data elements. The method by which settlement takes place is not within the scope of this part of ISO 8583.