Method for conducting transactions e.g. at electronic stock market, involves complete transaction data, required by background system, being stored in data carrier

摘要

A method carrying out transactions between a portable data carrier (1) and a first acceptance point (2,3). During conducting the transaction complete transaction data required by the background system (6) for the evaluation of the transaction are temporarily stored in the data-carrier (1) and during completion of the transaction the temporarily stored transaction data are communicated to the background system (6). An Independent claim is included for a system for carrying out transactions with portable data carriers.