Reading system, shopping assistance system, reading method, and program

A reading method, comprising:

• acquiring, with regard to a reading device that is installed at a checkout counter and is configured to perform wireless communication with an electronic tag attached to each of one or more items by using a radio wave as a medium to read item information on each of the one or more items, an evaluation value about at least one of:
• a total number of times;
• a time interval;
• or a frequency of reading the item information for each of the one or more items;
• and
• determining, for each of the one or more items, whether or not each of the one or more items is an object that is placed on the checkout counter to be read by the evaluation value acquirer installed at the checkout counter based on a change in the evaluation value over time.

A program configured to cause a computer system to execute:

• a process of acquiring, with regard to a reading device that is installed at a checkout counter and is configured to perform wireless communication with an electronic tag attached to each of one or more items by using a radio wave as a medium to read item information on each of the one or more items, an evaluation value about at least one of:
• a total number of times;
• a time interval;
• or a frequency of reading the item information, for each of the one or more items;
• and
• a process of determining, for each of the one or more items, whether or not each of the one or more items is an object that is placed on the checkout counter to be read by the evaluation value acquirer installed at the checkout counter based on a change in the evaluation value over time.