âAmerican Expressâ payment cards are set particularly high requirements to their quality. These payment cards are processed in the on-line subsystem of BIS FORPOST*Cards where this new functionality was designed. The system of authorisation of âAmerican Expressâ payment cards is applied for high-quality processing of bank payment cards in the real time mode.
Up till now the transactions of bank-serviced âMastercardâ and âVisaâ payment cards have been provided in the form of files. The method of providing transactions of âAmerican Expressâ payment cards, is based on ISO8583 messages (Financial transaction card originated messages â interchange message specifications). This international format of payment cards information exchange ensures easy compatibility of the external message system interface with other payment card authorisation systems.
The system consists of the external banking system module, which enables acceptance, processing and sending of payment cards messages of the international standard ISO8583:1993, and the internal banking system module, which performs banking system operations and provides information, which is required for the external module while processing ISO8583:1993 messages. These modules comprise FORPOST*Cards on-line solution, which uses information of FORPOST*Cards contracts. The system, created on the basis of the mentioned specifications, joins the FORPOST banking information system with the payment cards system.
The main advantage of the system is uninterrupted and rapid processing of the payment cards messages and efficient response to them. The banking system operates uninterruptedly in the 24/365 mode. Banking day, month, or year closing procedures do not anyhow influence the process of payment cards authorisation. Thus, the chances of data inconsistency between the bank and the Processing centre are eliminated and there is no time spent for synchronisation of information between the bank and the Processing centre.