Our flowchart (Fig. 9.5) shows that transaction data enter the system through a terminal, are processed by a data collection program, and then are stored on an inventory file.

• 流程图（图9.；5）表明，通过终端进入系统的事务数据被数据采集程序处理，然后存放在货单文件上。最后，货物清单文件由一个Report and reorder（报告和订货）程序处理。