Differentielles testverfahren für transaktionsverarbeitungssysteme

Abstract

A computer-implemented method of testing a transaction component within a production environment of a transaction system against a legacy transaction component, the transaction component being configured to route transaction messages between an issuer and an acquirer during a cardholder transaction using a transaction card having a primary account number (PAN), the method comprising: receiving a transaction message, the transaction message comprising a plurality of data fields, one of the plurality of data fields comprising the PAN of the transaction card; associating the PAN with a shadow primary account number (PAN), the shadow PAN replicating the format of the PAN; creating a shadow transaction message, the shadow transaction message comprising a plurality of data fields, one of the plurality of data fields comprising the shadow PAN; sending the received transaction message to the legacy transaction component for processing; sending the shadow transaction message to the transaction component for processing; receiving a processed transaction message from the legacy component; receiving a processed shadow transaction message from the transaction component; comparing the data fields of the processed transaction message and processed shadow transaction message for any discrepancies.