| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the master data table of a store server from being updated with unauthorized data in updating master data in a POS system. <P>SOLUTION: In updating merchandise data about each piece of merchandise stored in a maser data table constructed in a store server configuring a POS system for each merchandise based on received update data configured of a plurality of item data about each merchandise, whether or not each of a plurality of item data is present within the range of predetermined update conditions is determined for each of the update data of each merchandise, and when all the item data are present within the update conditions, it is determined that the received update data are authorized data about the merchandise, and when at least one item data are beyond the range of the update conditions, it is determined that the received update data are unauthorized data. As for the unauthorized data, a log file is generated. Only as for merchandise whose update are determined to be authorized data, the master data table is updated. <P>COPYRIGHT: (C)2009,JPO&INPIT |
