| 摘要 |
PROBLEM TO BE SOLVED: To output accurate sales details, even if an electronic tag is attached to both set merchandise and individual merchandise configuring this. SOLUTION: A database under unitary control is provided with a merchandise table containing the data of a merchandise code and a set flag, showing whether it is the set merchandise and a set merchandise table, containing the data of the merchandise code of the set merchandise and the merchandise code of the individual merchandise configuring the set merchandise and the number of storage n. A POS terminal increments the cumulative number Ni of the merchandise for each merchandise ID to be supplied (S4); and when it is decided that the merchandise ID to be supplied is the set merchandise by referring to the merchandise table (S3, S5), it subtracts number nj of stored individual merchandises contained in the set merchandise from cumulative number Nj for each of the individual merchandise configuring the set merchandise, by referring to the set merchandise table (S6, S7), responds to the end of reading (S8, S9), and outputs information related with a merchandise identification code, to identify the merchandise whose number is not 0 and the number. COPYRIGHT: (C)2005,JPO&NCIPI
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