Point-of-sale device including an electronic receipt agent

A method of adapting a point-of-sale (POS) device to operate in an electronic receipt system, the method comprising:

• providing an electronic receipt agent between a POS application of the POS device and a scanner and a printer, wherein the electronic receipt agent includes:
• an input processing unit configured to:
• receive, via an input device, data related to a commercial transaction, and
• output the data related to the commercial transaction to an execution unit of an application program of the POS device that generates receipt data on the basis of the data;
• a print processing unit configured to control a print device to print a receipt based on the receipt data generated by the application program of the POS device;
• a transmission processing unit configured to control a communication device to transmit the receipt data to a server that stores the receipt data;
• a determination unit configured to determine whether the data input via the input device requires an electronic receipt;
• and
• a switching unit configured to:
• provide the receipt data generated by the execution unit to the transmission processing unit if the determination unit determines that the data input via the input device requires the electronic receipt, and
• provide the receipt data generated by the execution unit to the print processing unit if the determination unit determines that the data input via the input device does not require the electronic receipt.

A non-transitory computer readable medium containing instructions causing a point-of-sale (POS) device to become adapted to operate in an electronic receipt system by implementing an electronic receipt agent between a POS application of the POS device and a scanner and a printer, the electronic receipt agent comprising:

• an input processing unit configured to:
• receive, via an input device, data related to a commercial transaction, and
• output the data related to the commercial transaction to an execution unit of an application program of the POS device that generates receipt data on the basis of the data;
• a print processing unit configured to control a print device to print a receipt based on the receipt data generated by the application program of the POS device;
• a transmission processing unit configured to control a communication device to transmit the receipt data to a server that stores the receipt data;
• a determination unit configured to determine whether the data input via the input device requires an electronic receipt;
• and
• a switching unit configured to:
• provide the receipt data generated by the execution unit to the transmission processing unit if the determination unit determines that the data input via the input device requires the electronic receipt, and
• provide the receipt data generated by the execution unit to the print processing unit if the determination unit determines that the data input via the input device does not require the electronic receipt.