| 摘要 |
PROBLEM TO BE SOLVED: To provide a system including registration devices and adjustment devices, the system executing only one adjustment processing for one piece of transaction information.SOLUTION: Each of transaction devices which executes adjustment processing on the basis of the information for specifying the transaction of commodities registered includes: reading means which reads a medium storing information for specifying the transaction; and prohibition means for, when determining that the information for specifying the transaction, read by the reading means has already been read, prohibiting the adjustment processing of transaction specified by the medium read by the reading means. |
