JP2009187362A - Data processing system, data processor, data processing method, data processing program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data processing system, apparatus, method and program using a shop code, and to provided a recording medium. <P>SOLUTION: A merchandise information management device and an information processor are connected to a network, the merchandise information management device includes a merchandise data storage means for storing merchandise data corresponding to a merchandise code prepared by a maker, a merchandise code storage means, a preparation means for preparing the shop code having an individual identification number, and an information detection means for detecting prescribed information from the merchandise data storage means and the merchandise code storage means. The information processor includes a code reading means, a history confirmation means for confirming a read history DB to check whether or not a read code is redundant, a means for displaying an error when redundant read is confirmed, a means for determining whether or not the read code is the shop code, and a means for accessing the merchandise code storage means of the merchandise information management device on the basis of the storage place information of the merchandise code included in the shop code when determined that it is the shop code. The information detection means, in accordance with access from the information processor, refers to the merchandise code stored in the storage place and the merchandise data storage means, detects the merchandise data corresponding to the merchandise code, and transmits them to the information processor. A payment processing means performs payment processing on the basis of the merchandise data sent from the merchandise information management device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a data processing system, a data processing device, a data processing method, a data processing program, and a recording medium, and more particularly to a data processing system, a data processing device, a data processing method, a data processing program, and a recording medium that use an in-store code.

  For example, in an electronic cash register type merchandise sales data processing apparatus, when a product code (for example, a barcode) for each product is input using a scanner, the product code is input with reference to the product file in its own device or a host device. There is known a technique for acquiring product data (product name, unit price, etc.) corresponding to a product code and registering (storing) products for each product in a sales file (see Patent Documents 1 and 2). In recent years, a point of sale (POS) system has been introduced to collect sales performance information such as product names, prices, quantities, and dates. In the POS system, sales information collected at the cash register is calculated, and the management can grasp “when, which product, what price, how many were sold”.

  When processing payments, care must be taken not to double-read the barcode of the product, but double-reading often occurred. The double reading becomes a complaint from the customer, which may lead to a store credit problem. As a technique for preventing double reading, for example, after actually reading a barcode, the product code is temporarily stored in a POS register, and a determination time for comparison with the immediately preceding product code is set, and double reading is performed. It has been proposed to prevent misrecognition of the scanner by making the above determination.

As a related technology, when reading the identification number attached to the container at the site, even if it is read twice or forgotten to read, the container management system that improves the container management system and workability by correcting it Has been proposed (see Patent Document 3). The identification number attached to the container is read, the read identification numbers are sequentially recorded, and the identification numbers are checked for duplication, thereby preventing the same identification number from being read twice.
JP 2001-034843 A Japanese Patent Application Laid-Open No. 07-319965 Japanese Patent Laid-Open No. 09-020410

  However, since any of the above double reading prevention technologies is a method of comparing with the product with the same product code or the number recorded sequentially on the assumption that there is no container with the same identification number, in the case of the same product code, etc. It cannot respond to.

  When paying at the POS cash register, the cashier in charge reads the product barcode and performs the payment process. Depending on the cashier's processing method, if there are different individuals with the same product, In some cases, double reading may be performed.

  For example, when performing payment processing at a POS cash register, the cashier in charge reads the barcode of the product with a scanner, and moves the read product to another basket as the payment processing completion amount. Separated. Since this work is a manual work by the cashier, if the product is not transferred to another basket and mixed with the product before payment processing, the product barcode is read again, and the same barcode is There was a problem that excessive settlement due to double reading occurred.

  In addition, since the cashier in charge handles multiple payments for the same type of product, after reading the barcode with the first product, multiply the number and perform multiple payment processing. . However, when the cashier took charge of processing the product by reading the barcode, he noticed the fact that there were multiple items, and later moved to another payment-processed basket, and then the same for all The problem of double reading sometimes occurred when multiple types of goods were processed for payment.

  In the current POS system, product information is read from a barcode (source marking) printed at the time of shipment of the product, and the manufacturer, product name, and price information registered on the master of the store controller is referred to. Yes. In the case of a printed barcode (source marking), it is usually not possible to identify different individuals of the same type of product from this barcode. Bar codes (in-store marking) used only in stores to identify individuals are used, but in-store marking of manufacturers, product names, prices, and individual identification information in compliance with JAN (Japan Article Number) codes It was difficult to capture.

  The present invention has been made in view of such a situation, and it is possible to identify different individuals with the same product, and an object thereof is to prevent double reading due to an artificial factor of a cashier person.

  In a first data processing system according to the present invention, a product information management device and an information processing device including a payment processing unit are connected to a network, and the product information management device is a product corresponding to a product code created by a manufacturer. Product data storage means for storing data, product code storage means for storing the product code, and an in-store code provided with an individual identification number that corresponds to the product code and that can identify each product even if it is the same type of product And an information detecting means for detecting predetermined information from the product data storage means and the product code storage means, wherein the information processing device includes a reading means for reading the code, and the read code The history check means for checking the reading history database for duplicates and the history check means confirm duplicate reading. In this case, display means for displaying an error, determination means for determining whether or not the read code is the in-store code, and, if determined to be the in-store code, the storage location information of the product code included in the in-store code Based on the product code storage means of the product information management device, the information detection means corresponding to the access from the information processing device, the product code stored in the storage location, Referring to the product data storage means, product data corresponding to the product code is detected and transmitted to the information processing device, and the payment processing means is based on the product data sent from the product information management device. The reading history database stores an in-store code for which payment processing has been completed, and indicates that all payment processing for the same customer has been completed. If it is notified from the stomach processing means, characterized by clearing the read history.

  A first data processing apparatus according to the present invention corresponds to a product data storage unit that stores product data corresponding to a product code created by a manufacturer, a product code storage unit that stores the product code, and the product code. Further, an in-store code creating means for creating an in-store code having an individual identification number that can identify each product even if it is the same type of product, and an information detecting means for detecting predetermined information from the product data storage means and the product code storage means A reading means for reading the code, a history checking means for checking the reading history database whether the read code is duplicated, and a display means for displaying an error when the duplicate reading is confirmed by the history checking means Determining means for determining whether or not the read code is the in-store code; and if the code is determined to be the in-store code, Information detection means for detecting product data corresponding to the product code by referring to the product code stored in the product code storage means and the product data storage means based on the storage location information of the product code included in the code And payment processing means for performing payment processing based on the product data, wherein the reading history database stores an in-store code for which payment processing has been completed, and the payment processing indicates that all payment processing for the same customer has been completed. When notified from the means, the reading history is cleared.

  A first data processing method according to the present invention corresponds to a product data storage step for storing product data corresponding to a product code created by a manufacturer, a product code storage step for storing the product code, and the product code. In-store code creation process that creates an in-store code with an individual identification number that can identify each individual product even if it is the same type of product, a reading process that reads the code, and a reading history database that checks whether the read code is duplicated A history confirmation step to confirm, a display step for displaying an error when duplicate reading is confirmed by the history confirmation step, a determination step for determining whether or not the read code is the in-store code, and the in-store code Is determined, based on the storage location information of the product code included in the in-store code, stored in the product code storage step An information detection step of detecting product data corresponding to the product code with reference to a product code and the product data stored in the product data storage step; a payment processing step of performing payment processing based on the product data; The reading history database stores an in-store code for which payment processing has been completed, and clears the reading history when notified that all payment processing for the same customer has been completed.

  A first data processing program according to the present invention corresponds to a product data storage process for storing product data corresponding to a product code created by a manufacturer, a product code storage process for storing the product code, and the product code. Further, an in-store code creating process for creating an in-store code having an individual identification number that can identify each product even if it is the same type of product, and an information detecting process for detecting predetermined information from the product data storage process or the product code storage process And a reading process for reading the code, a history checking process for checking the reading history database for whether the read code is duplicated, and a display process for displaying an error when a duplicate reading is confirmed by the history checking process. And a determination process for determining whether or not the read code is the in-store code, Information for detecting product data corresponding to the product code by referring to the product code stored in the product code storage process and the product data storage process based on the storage location information of the product code included in the store code The detection process and the payment process for performing the payment process based on the product data are executed by the computer, and the reading history database stores the in-store code for which the payment process has been completed, and all the payment processes for the same customer have been completed. Is read from the payment process, the reading history is cleared.

  The first recording medium according to the present invention is a computer-readable recording medium for recording the processing of the first data processing program of the present invention.

  According to the present invention, it is possible to identify different individuals with the same product, and to prevent double reading due to an artificial factor of a cashier person.

  Embodiments of the present invention will be described below in detail with reference to the drawings. The embodiments described below are preferred embodiments of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. As long as there is no description of the effect, it is not restricted to these aspects.

  In the specification, the store controller is an example of a management device that manages barcodes, and the POS register is an example of an information processing device.

  As described above, in the current POS system, product information is read from a maker-created barcode (source marking) (indicated by reference numeral 600 in this specification) printed at the time of shipment of the product to the store controller, and the store controller Maker / product name / price information registered on the master database of the system, and the information is obtained and payment processing is performed. Since the same source marking is given to the same type of product, individual products cannot be identified.

  Therefore, a barcode (in-store marking) that is used only in the store is used to identify the individual. Furthermore, by providing a barcode table 200 in addition to the master database 100 that includes the normal manufacturer, product name, and price information, a conversion method between in-store marking and source marking can be performed in a form compliant with the JAN code. Incorporation and individual identification with a one-dimensional barcode with a small amount of information is possible without changing the barcode standard. As a result, even the same product can be identified, and double reading due to an artificial factor of a cashier person can be prevented.

  FIG. 1 is an overall configuration diagram of a data processing system according to an embodiment of the present invention. A store controller (SC) 10 and a POS register 30 are connected to the network 60. The store controller 10 is connected to the label printer 20. The label printer 20 can print the in-store marking 500 created in SC10 and attach it to a product. A scanner 40 is connected to the POS register 30. The scanner 40 reads a barcode attached to a product. As shown in FIG. 1, a bar code of in-store marking 500 issued by the label printer 20 is affixed to the product 50.

  The store controller (SC) 10 includes at least a display unit 110, an input unit 120, an in-store marking creation unit 130, an information detection unit 140, a master database 100, and a barcode table 200.

  FIG. 2 is a configuration example of the master database 100. The master database 100 stores a source marking 600, which is a barcode created by a manufacturer, a manufacturer name 101, a product name 102, and price information 103, and a page number 201 indicating location information of a barcode table to be described later. , Row number 202, column number 203, and individual identification number history 104 are stored.

  FIG. 3 is a configuration example of the barcode table 200. The barcode table 200 stores the source marking 600. Each source marking 600 can be referred to by specifying a row number and a column number. In addition, the barcode table is composed of a plurality of pages so as to be compatible with a large number of products. Each page is given a page number 201.

  FIG. 4 is a diagram illustrating a configuration example of the in-store marking 500. The in-store marking 500 is created by the in-store marking creation unit 130. The in-store marking 500 is created by allocating location information (barcode table page number 201, row number 202, column number 203) indicating the source marking 600 stored in the barcode table 200. By assigning the individual identification number 502, it is possible to distinguish even products of the same type. Hereinafter, the configuration of the in-store marking 500 will be described in detail.

  The in-store marking 500 includes a bar code part 550 and a numerical part 560 using a 13-digit JAN code. The numerical value portion 560 includes an in-store code 501, a page number 201, a row number 202, a column number 203, an individual identification number 502, and a check digit 503. In the leftmost two-digit in-store code portion, a code dedicated to bar code table search is prepared in order to distinguish it from general in-store marking. From the third digit from the left, page number 201, row number 202, and column number 203 of the barcode table are assigned. The individual identification number 502 is assigned to the remaining four digits excluding the rightmost digit. By reading the in-store marking 500 with a scanner, individuals of the same product can be identified from the individual identification number 502. Further, the source marking location in the barcode table 200 can be known from the page number 201, the row number 202, and the column number 203.

  The POS register 30 includes at least a reading history unit 300, a barcode determination unit 310, an information determination unit 320, a payment processing unit 330, and a display unit 340. The reading history unit 300 includes a history checking unit 302 that checks the barcode reading history DB 301 for whether or not the barcode read by the scanner 40 is duplicated. The barcode determination unit 310 determines whether or not the read barcode needs to search the barcode table 200. Specifically, the left two-digit in-store code 501 of the in-store marking 500 shown in FIG. The information determination unit 320 determines information received from the store controller 10. When the information determination unit 320 cannot receive the price and product name information from the store controller 10 and receives an error, the information determination unit 320 displays the error on the display unit 340. When the payment is completed, the payment processing unit 330 notifies the reading history unit 300 to that effect. As a result, the reading history unit 300 knows the timing for resetting the history read by payment for one customer.

  Next, the operation process of this embodiment is demonstrated using a flowchart.

[Create in-store markings]
1. Registration of Source Marking 600 Before the in-store marking 500 is created, the user needs to register the source marking 600 of the product to be created in the barcode table 200. FIG. 5 is a flowchart showing an operation process when registering the source marking 600 from the POS register 30 or the store controller (SC) 10. If it is already registered in the barcode table 200, the process shown in FIG. 6 is performed.

(1) Register the source marking 600 of the product for which the in-store marking 500 is to be created in the barcode table 200. As shown in FIG. 5, when registering from the POS register 30, the source marking 600 is read by the scanner 40 (step S1). When registering from the store controller (SC) 10, the numerical value of the source marking 600 is input from the input unit 120 (step S2).

(2) It is confirmed whether or not the source marking 600 desired to be registered has already been registered in the barcode table 200, and a free space is searched (step S3). If not registered (S3 / No), the source marking 600 is registered in an empty place of the barcode table 200. The registered location is represented by a page number 201, a row number 202, and a column number 203 (see FIG. 3).

(3) The page number 201, row number 202, and column number 203 are also added to the master database 100 (see FIG. 2). The user can confirm registration by displaying the added information on the screen of the display unit 110 (see step S5, FIG. 2).

2. Creation of In-Store Marking 500 FIG. 6 is a flowchart showing an operation process when the in-store marking 500 is created based on the registered source marking 600 from the POS register 30 or the store controller (SC) 10 and is output by the label printer 20. It is.

(1) Specify the source marking 600 of the product to be created. There are a method of reading the source marking 600 of the product to be created from the scanner 40 (step S6 in FIG. 6) and a method of inputting the numerical value of the barcode 600 from the input unit 120 of the store controller (SC) 10 (step S7).

(2) The page number 201, row number 202, and column number 203 of the designated source marking 600 are searched from the master database 100 in the store controller (SC) 10 (step S8).

(3) If the page number 201, row number 202, and column number 203 are not retrieved from the master database 100 (step S9 / No), the barcode 600 needs to be registered (step S10). Notification that the registration of the barcode 600 is necessary (display on the display unit 340) is performed. For example, registration is performed by the process shown in FIG.

(4) After searching the page number 201, the row number 202, and the column number 203 from the master database 100 (step S10 / Yes), the barcode table 200 is searched using each searched number (step S11). The information of the source marking 600 retrieved from the barcode table 200 is referred to and displayed on the display unit 110 (step S12). The user can confirm whether or not the in-store marking 500 is a product to be created.

(5) If it is confirmed that the in-store marking 500 is a product to be created, an “OK” button or the like is pressed from the display unit 110 (Step S13 / Yes), the number of created items is determined, and the number is entered ( Step S15). On the other hand, if it cannot be confirmed because it is different from the desired product (No in step S13), an error in registration information is considered, and therefore, the display unit 110 is notified that re-registration is necessary (step S14).

(6) When the number of created sheets is input, the individual identification number history 104 stored in the master database 100 is referred to, and the individual identification number from the next number is issued to create the in-store marking 500 (step S16). ). The individual identification number is updated every time one is created. The created in-store marking 500 is output (printed) on the product by the label printer 50 (step S17). When the creation and printing of the designated number of sheets are completed, the individual identification number of the last created in-store marking 500 is stored in the master database 100 (step S18). As a result, when the in-store marking 500 of the same type of product is created next, it can be created from the next individual identification number, and the same type of product does not have duplicate identification numbers.

(7) The in-store marking 500 is created as described above, and the in-store marked product 50 is created.

[Payment processing]
Payment processing is performed by reading a bar code at a POS register. FIG. 7 is a flowchart showing an operation process when the POS register 30 reads a barcode.

(1) The barcode printed on the product 50 is read by the scanner 40 of the POS register 30 (step S19). The reading history unit 300 confirms whether there is a history of reading the same barcode (step S20). In the case of the same type of product (the page number etc. and the source marking are the same), it is possible to determine whether the same product has been read twice by referring to the individual identification number.

(2) If there is a reading history (step S20 / Yes), a notification of a double reading error is sent (step S21).

(3) If there is no reading history (step S20 / No), it is not double reading, and the payment process is continued. FIG. 8 is a flowchart showing an operation process when the bar code read by the POS register 30 is confirmed, processed by the store controller (SC) 10, and information is output to the POS register 30.

(4) The barcode determination unit 310 checks whether or not the in-store code 501 exists in the left two digits of the read barcode (step S22). If there is an in-store code 501, it is determined that the in-store code refers to the barcode table 200, and the fact is notified to the SC 10 via the network 60 (step S 23). In the case of a bar code that does not refer to the bar code table 200, the fact is notified to the SC 10 via the network 60 (step S23 / No), the master database 100 in the store controller (SC) 10 is directly referred to, and a normal POS register is stored. Payment processing (FIG. 1, dotted arrow path to the payment processing unit 330) is performed (step S24).

(4) When it is received that the barcode refers to the barcode table 200 (step S23 / Yes), the information detection unit 140 sets the page number 201, the row number 202, and the column number 203 of the in-store marking 500. Based on the barcode table 200, the source marking 600 is searched (step S25).

(5) If the source marking 600 is not found from the bar code table 200 (step S26 / No), an error message is transmitted to the POS register 30 (step S27).

(6) On the other hand, when the source marking 600 is found (step S26 / Yes), the master database 100 is searched based on the found source marking 600, and barcode information (information of manufacturer 101, product name 102, price 103) is searched. ) Is output to the POS register 30 (steps S28 and S29). In this way, by reading the in-store marking 500, the barcode (source marking 600) at the time of shipment from the manufacturer can be searched, and barcode information (manufacturer / product name / price information) compliant with the JAN standard is transmitted to the POS register. it can.

(7) FIG. 9 is a flowchart showing an operation process when the POS register 30 processes the information received from the store controller (SC) 10. The information determination unit 320 determines information transmitted from the SC 10 (step S30 in FIG. 9). In the case of error information (step S30 / No), an error is displayed on the display unit 340 (step S31).

(8) In the case of barcode information (maker name 101, product name 102, price information 103) (step S30 / Yes), each information is displayed on the display unit 340 (step S31).

(9) Payment processing is executed by the payment processing unit 330 (step S33).

(10) The reading history unit 300 stores the read history (step S34).

(11) When the payment process of the same customer is continued (step S35 / Yes), the next product is processed from step S19 in FIG. When the payment process for the same customer is completed (No at Step S35), the reading history information in the reading history unit 300 is cleared (Step S36).

  As described above, by using not only the source marking master database but also the barcode table, the conversion method between in-store marking and source marking conforming to the JAN standard is adopted, and the barcode standard is not changed. Individual identification is possible with a small amount of one-dimensional barcode. As a result, different individuals can be identified with the same product, and double reading due to an artificial factor of the cashier person can be prevented.

  Note that the program for the CPU to execute the processing shown in the flowcharts of the drawings constitutes a program according to the present invention. As a recording medium for recording the program, a semiconductor storage unit, an optical and / or magnetic storage unit, or the like can be used. By using such a program and a recording medium in a system having a configuration different from that of each of the above-described embodiments and causing the CPU to execute the program, substantially the same effect as the present invention can be obtained.

  Although the present invention has been specifically described above based on the preferred embodiments, it is needless to say that the present invention is not limited to the above-described ones and can be variously modified without departing from the gist thereof.

1 is an overall configuration diagram of a data processing system according to an embodiment of the present invention. It is a figure which shows the structural example of the master database 100 which concerns on embodiment of this invention. It is a figure which shows the structural example of the barcode table 200 which concerns on embodiment of this invention. It is a figure which shows the structural example of the in-store marking 500 which concerns on embodiment of this invention. It is a flowchart which shows the operation | movement process at the time of registering the source marking 600 which concerns on embodiment of this invention. It is a flowchart which shows the operation | movement process at the time of creating the in-store marking 500 which concerns on embodiment of this invention. 6 is a flowchart showing an operation process when the POS register 30 according to the embodiment of the present invention reads a barcode 500. It is a flowchart which shows the operation processing of the POS cash register 30 and the store controller (SC) 10 which concern on embodiment of this invention. It is a flowchart which shows the operation | movement process of the POS cash register 30 which concerns on embodiment of this invention.

Explanation of symbols

10 Store controller (SC)
20 Label Printer 30 POS Register 40 Scanner 50 In-Store Marked Product 60 Network 100 Master Database 101 Manufacturer 102 Product Name 103 Price 104 Individual Identification Number History 110 Display Unit 120 Input Unit 130 In-Store Marking Generation Unit 140 Information Detection Unit 200 Bar Code Table 201 Page number 202 Row number 203 Column number 300 Reading history section 301 Reading history DB
302 History confirmation unit 310 Barcode determination unit 320 Information determination unit 330 Payment processing unit 500 In-store marking 501 In-store code 502 Individual identification number 503 Check digit 550 Bar code part 560 Numeric part 600 Bar code (source marking)

Claims (7)

A product information management device and an information processing device including a payment processing means are connected to a network,
The product information management device includes:
Product data storage means for storing product data corresponding to the product code created by the manufacturer;
Product code storage means for storing the product code;
In-store code creation means for creating an in-store code with an individual identification number that can identify each individual product even if it corresponds to the product code,
Information detecting means for detecting predetermined information from the product data storage means and the product code storage means,
The information processing apparatus includes:
Reading means for reading the code;
A history confirmation means for confirming the reading history database for duplicate codes, and
When duplicate reading is confirmed by the history confirmation means, display means for displaying an error;
Determining means for determining whether the read code is the in-store code;
If it is determined as the in-store code, and comprises means for accessing the product code storage means of the product information management device based on the storage location information of the product code included in the store code,
The information detection means corresponds to access from the information processing apparatus, refers to the product code stored in the storage location and the product data storage means, detects product data corresponding to the product code, Transmitted to the information processing device,
The payment processing means performs payment processing based on the product data sent from the product information management device,
The reading history database stores an in-store code for which payment processing has been completed, and clears the reading history when notified by the payment processing means that all payment processing for the same customer has been completed. Data processing system.   2. The data processing system according to claim 1, wherein the merchandise management apparatus includes in-store code attaching means for printing the in-store code created by the in-store code creating means on a label and attaching the label to the product.   3. The data processing system according to claim 1, wherein the product data includes at least a product name and price information. Product data storage means for storing product data corresponding to the product code created by the manufacturer;
Product code storage means for storing the product code;
In-store code creation means for creating an in-store code with an individual identification number that can identify each individual product even if it corresponds to the product code,
Information detection means for detecting predetermined information from the product data storage means and the product code storage means;
Reading means for reading the code;
A history confirmation means for confirming the reading history database for duplicate codes, and
When duplicate reading is confirmed by the history confirmation means, display means for displaying an error;
Determining means for determining whether the read code is the in-store code;
When it is determined as the in-store code, the product code stored in the product code storage unit and the product data storage unit are referred to based on the storage location information of the product code included in the store code, and the product data storage unit Information detecting means for detecting product data corresponding to the code;
Payment processing means for performing payment processing based on the product data,
The reading history database stores an in-store code for which payment processing has been completed, and clears the reading history when notified by the payment processing means that all payment processing for the same customer has been completed. Data processing device. A product data storage step for storing product data corresponding to the product code created by the manufacturer;
A product code storage step for storing the product code;
In-store code creation step for creating an in-store code with an individual identification number that can identify each individual product even if it corresponds to the product code,
A reading process for reading the code;
A history check process for checking the reading history database for duplicate codes, and
When duplicate reading is confirmed by the history confirmation step, a display step for displaying an error,
A determination step of determining whether the read code is the in-store code;
If the store code is determined, the product code stored in the product code storage step and the product data stored in the product data storage step based on storage location information of the product code included in the store code An information detecting step for detecting product data corresponding to the product code,
A payment processing step of performing payment processing based on the product data,
The reading history database stores an in-store code for which payment processing has been completed, and clears the reading history when notified that all payment processing for the same customer has been completed. Product data storage processing for storing product data corresponding to the product code created by the manufacturer;
A product code storage process for storing the product code;
In-store code creation processing for creating an in-store code corresponding to the product code and further having an individual identification number that can identify each individual product even if it is the same type of product,
An information detection process for detecting predetermined information from the product data storage process and the product code storage process;
A reading process to read the code,
A history check process to check the reading history database for duplicate codes,
When duplicate reading is confirmed by the history confirmation process, a display process for displaying an error, and
A determination process for determining whether the read code is the in-store code;
When it is determined as the store code, the product code stored in the product code storage process and the product data storage process are referred to based on the storage location information of the product code included in the store code, and the product data storage process An information detection process for detecting product data corresponding to the code;
Payment processing for performing payment processing based on the product data is executed by a computer,
The reading history database stores an in-store code for which payment processing has been completed, and clears the reading history when notified from the payment processing that all payment processing for the same customer has been completed. Processing program.   A computer-readable recording medium for recording the processing of the data processing program according to claim 6.

Images