Abstract: A store system includes a position information acquisition unit that acquires position information of an RFID medium attached to an item and position information of a visitor terminal carried by a visitor, an event detection unit that detects an event that the RFID medium or the visitor terminal enters or leaves a predetermined area in a store space based on the acquired position information, an event information storage unit that stores event information including an ID that identifies the RFID medium or the visitor terminal, information about the predetermined area based on the position information, and a detection time of the event, and a status determination unit that determines a status, which is a state of the item or is an action content of the visitor, based on the event information.

Abstract: A customer service support system includes a position information acquisition unit that acquires position information of a visitor terminal carried by a visitor, and a customer service support unit that transmits customer service support information to a store clerk terminal used by a store clerk for work in response to determining, based on the acquired position information, that the visitor terminal stays in a predetermined area in a store space for a predetermined time or longer, the customer service support information being indicate that it is time for the store clerk to approach the visitor and perform customer service.

Abstract: An item management support system includes a position information acquisition unit that acquires position information of an RFID medium attached to an item, and an item management support unit that transmits item management support information to a store clerk terminal used by a store clerk for work in response to determining, based on the acquired position information, that the RFID medium being located in an area different from a predetermined area of a store space divided into a plurality of areas and is located in the different area for a predetermined time or longer, the item management support information being include information about an area where the RFID medium is currently located.