| 摘要 |
PURPOSE:To prevent sales information from omission by making it possible to write the sales information in a sales information managing file stored in a register terminal equipment even when the sales information can not be written in a sales information managing file stored in a register terminal managing device due to the generation of a fault on a communication line or the like. CONSTITUTION:After completing the operation of a register terminal equipment 30, sales information is written in the sales information managing file 11 stored in the register terminal managing device 10. After completing the writing, a judging means 32 judges whether the sales information has been written in the sales information managing file 11 or not. When the information has not been written yet as the result of judgement, the same sales information is written in the sales information managing file 31 stored in the equipment 30. |
