Abstract: In one embodiment, a payment processor has a processor which configured to controls checkout processing. The checkout processing includes payment processing of a product. An electronic tag is attached to the product, and stores tag data. The processor executes data-change processing to write readout-completed data in an electronic tag identified by the tag data stored in the memory after the payment processing of the product. The readout-completed data shows that the tag reader has read the electronic tag.

Abstract: In one embodiment, a payment processor has a processor which configured to controls checkout processing. The checkout processing includes payment processing of a product. An electronic tag is attached to the product, and stores tag data. The processor executes data-change processing to write readout-completed data in an electronic tag identified by the tag data stored in the memory after the payment processing of the product. The readout-completed data shows that the tag reader has read the electronic tag.

Abstract: A commodity selection supporting system displays an image showing appearance of a subject-person on a display, e.g. the display of a tablet PC, reads information for identifying a commodity that is held close to the display on which the image of the subject-person is displayed and collects the identification information of the commodity read in association with information relevant to the appearance of the subject-person displayed on the display.

Abstract: According to an embodiment, coordination list-providing system is provided. The coordination list-providing system comprises a product list display unit configured to display on a display screen product information including a product image, and a product name for each of one or more products. The coordination list-providing system further comprises a detailed information display unit configured to display on the display screen detailed information of a selected product that is selected from the one or more products. The coordination list-providing system further comprises a coordination list unit configured to provide a coordination list comprising one or more coordination images of coordinating products associated with the selected product when a predetermined operation is performed.

Abstract: A commodity selection supporting system displays an image showing appearance of a subject-person on a display, e.g. the display of a tablet PC, reads information for identifying a commodity that is held close to the display on which the image of the subject-person is displayed and collects the identification information of the commodity read in association with information relevant to the appearance of the subject-person displayed on the display.