JP5910382B2 - Refuse receipt fraud prevention device - Google Patents

Description

  The present invention relates to an apparatus for preventing unauthorized use of a discarded receipt for preventing unauthorized use of a discarded receipt.

  Today, illegal removal of products has become a problem in stores such as supermarkets and mass retailers. Conventionally, in order to deal with such a problem, for example, a merchandise sales data processing apparatus described in Patent Document 1 has been proposed. This device is a technology that attaches a wireless tag to a product sold in a store, sets a password on the wireless tag of the product for which accounting has been completed, and confirms the password of the wireless tag with a gate-type antenna provided at the store entrance. When a product for which a password is not set passes, an alarm is issued to prevent unauthorized removal of the product.

  On the other hand, many stores today employ a POS system (Point Of Sales system) to manage store sales. In this case, the POS terminal is operated to register the sales product, issue a receipt, and hand it over to the customer. However, many shoppers throw away received receipts in trash bins. Under such circumstances, fraudulent acts that misuse discarded receipts are a problem. For example, it is an act of picking up a receipt discarded from a trash box, procuring a product from a store from information such as a product name and a price recorded in the receipt, performing a return process at a service counter, and obtaining money illegally.

  In this case, there is no means for identifying fraud on the store side, and it is not possible to deal with fraud. In this respect, for example, in the invention described in Patent Document 2, information on defective customers is registered in advance in the management server of the POS system based on past information, and based on the record of the receipt at the time of return processing, Information is obtained and the corresponding invention is disclosed.

JP 2010-170582 A JP 2011-129162 A

  However, even in the invention described in Patent Document 2, it is necessary to acquire information for registering defective customers, and customer management using a recording medium such as a card is required. Further, even if information indicating that the customer is a defective customer is obtained during the return processing, it cannot be determined that the actual return action is illegal.

  Accordingly, the present invention provides a rounded receipt fraud prevention device that can determine fraud in return processing using a receipt and reliably prevent the unauthorized use of a receipt without using a recording medium such as a card or a wireless tag. Is.

  According to the present invention, according to the present invention, a product information acquisition unit that acquires product information such as a product name and a price of a product purchased by a shopper, a password corresponding to the product information is generated, and the generated password is A storage unit for storing the product information together with a transaction serial number, for example, using a POS system, a purchase slip in which the transaction serial number of the product information to be passed to the shopper is recorded, and a password slip in which the password is recorded Is printed and delivered to the shopper, and when the product is returned, the transaction serial number recorded on the purchase slip and the personal identification number recorded on the personal identification number slip are compared with the transaction serial number stored in the storage unit and the personal identification number. If at least one of them does not match, it is determined that the merchandise is an illegal return, and fraud is prevented in advance.

  The product information is acquired by reading an identification code such as a barcode attached to the product, searching for product master information of the POS system, and acquiring information such as a product name and a price corresponding to the identification code. .

  In addition, for example, the purchase slip in which the transaction serial number is recorded and the password slip in which the password is recorded can be output as an integrated receipt that can be separated by, for example, a perforation, The printing process can be facilitated.

  In addition, the purchase vote may be configured such that a password corresponding to the purchase vote is set, for example, a password ***, etc., to prevent unauthorized use of the purchase vote. it can.

  ADVANTAGE OF THE INVENTION According to this invention, the fraudulent act using the returned goods process of goods can be prevented, and also a fraudulent act can be checked and fraudulent act can be prevented beforehand. Further, for example, it is possible to prevent fraud using the return processing of goods without adding new equipment to the existing POS system.

It is a figure which shows the structural example of the POS system in which the disposal receipt improper use prevention apparatus of this embodiment is used. It is a figure explaining the hardware constitutions of a cashier unit. It is a functional block diagram of a cashier unit. It is a figure which shows the data structure of a goods master holding | maintenance part. It is a figure which shows the data structure of a merchandise information (transaction log) holding | maintenance part. It is a flowchart explaining the process until the receipt issue to a shopper. It is an example of a receipt printed by a printer, and is a diagram for explaining the description of a purchase slip and a personal identification number slip output from the printer. It is a flowchart explaining the return process of goods. It is a figure which shows the example of input screens, such as a PIN code at the time of returned goods.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a configuration example of a POS system to which the scrutinized receipt fraud prevention device of the present embodiment is applied. The POS system 1 includes a POS server 2 and one or a plurality of POS terminals 3, and manages point-of-sale information. The example shown in FIG. 1 shows an installation example of one POS terminal 3.

  The POS server 2 and the POS terminal 3 are communicably connected via the network 4. The POS server 2 centrally manages the sales information registered by the POS terminal 3. The POS server 2 also manages a product master in which information such as a product code for identifying a product and a price is registered.

  The POS terminal 3 includes a cashier unit 5 and a checker unit 6. The cashier unit 5 is a unit mainly for receiving a sales price. The cashier unit 5 includes a control unit 7, a keyboard 8, an automatic change machine 9, a cash drawer 10, an automatic fishing bill machine 11, a magnetic card reader 12, a touch panel 13, a display 14, a customer display 15, and a printer 16.

  The control unit 7 is a computer that controls the cashier unit 5 and controls the POS terminal 3 in an integrated manner. The automatic change machine 9 deposits coins and changes received from customers, and the automatic bill change machine 11 deposits banknotes and changes the bills received from customers. The cash drawer 10 is a storage for storing coins and banknotes.

  The display 14 displays a predetermined GUI (Graphical User Interface) for performing transaction work. Moreover, the display 14 is comprised, for example with a liquid crystal display, and is located in the lower layer of the touch panel 13. As shown in FIG. An image displayed on the display 14 is visible through a touch panel 13 through a cashier (store clerk). The cashier performs a touch operation on the touch panel 13 while viewing the image displayed on the display 14.

  The keyboard 8 is an input device for operating the GUI displayed on the display 14. The customer display 15 is a display device that is installed on the shopper's side and displays transaction information to the shopper. For example, the customer display 15 displays a total amount of merchandise purchases, a deposit amount from the shopper, and a change amount.

  The magnetic card reader 12 reads information recorded on a magnetic stripe included in a credit card, a membership card, or the like. In addition, the printer 16 prints the shopper's payment processing result on roll paper and issues a receipt. Specific examples of receipts issued by the printer 16 are a purchase slip and a personal identification number slip to be described later.

  On the other hand, the checker unit 6 is a unit for mainly inputting a product code. The checker unit 6 includes a lane base 18, a support 19, a fixed scanner 20, a speaker 21, a multi-item keyboard 22, a display 23, a customer display 24, and a touch panel 25.

  The lane stand 18 supports the column 19. In addition, on the lane stand 18, shopping carts brought by the shopper and products put into the shopping carts are placed. The column 19 supports a fixed scanner 20, a speaker 21, a multi-item keyboard 22, a display 23, a customer display 24, and a touch panel 25.

  The fixed scanner 20 is a device for reading a barcode (identification code) given to a product. When the checker (store clerk) turns the bar code attached to the product toward the fixed scanner 20, the product code is input using the fixed scanner 20 as an input device. The product code input result is displayed on the display 23 so that the checker can confirm the product code input result.

  The touch panel 25 is an input device that selects a product without a barcode, for example, a fresh food product such as a vegetable or fish sold as a rose, or a product such as a side dish, from a product group displayed on the display 23. The customer display 24 is a display device that is installed on the shopper's side and displays transaction information to the shopper. For example, the customer display 24 displays the name of a product for which a product code is input, the unit price, and the like.

  The speaker 21 notifies the input result by sound. For example, the speaker 21 outputs a sound in a different mode depending on the state when the input is made normally or when it is necessary to alert the checker about the input. More specifically, for example, a single sound “beep” is generated when normal, and a continuous sound of “beep” is generated at the time of alerting, so that the checker can output sounds that can be easily distinguished.

  The multi-item keyboard 22 receives a checker operation. For example, when the multi-item keyboard 22 is alerted by sound output from the speaker 21, it accepts a correction operation by a checker that identifies an operation error.

  FIG. 2 is a diagram illustrating a hardware configuration of the cashier unit 5 having the above-described external configuration. The cashier unit 5 connects various input / output devices to the control unit 7. The entire control unit 7 is controlled by the CPU 27. A random access memory (RAM) 29, a hard disk drive (HDD) 30, a communication interface 31, a graphic processing device 32, and an input / output interface 33 are connected to the CPU 27 via a bus 28.

  The RAM 29 temporarily stores at least a part of an OS (Operating System) program to be executed by the CPU 27 and an application program for executing a POS operation. The RAM 29 stores various data necessary for processing by the CPU 27. The HDD 30 stores an OS and application programs.

  A display 14 and a customer display 15 are connected to the graphic processing device 32. The graphic processing device 32 displays images on the screens of the display 14 and the customer display 15 in response to a command from the CPU 27.

  A keyboard 8, an automatic change machine 9, a cash drawer 10, an automatic fishing bill machine 11, a magnetic card reader 12, a touch panel 13, and a printer 16 are connected to the input / output interface 33. The input / output interface 33 is configured to be connectable to a portable recording medium interface capable of writing information to the portable recording medium 34 and reading information from the portable recording medium 34.

  The input / output interface 33 sends signals sent from the keyboard 8, automatic change machine 9, cash drawer 10, automatic fishing bill machine 11, magnetic card reader 12, touch panel 13, printer 16, and portable recording medium interface to the bus 28. To the CPU 27.

  The communication interface 31 is connected to the checker unit 6 in a connection format such as RS-232C (Recommended Standard 232 version C) or USB (Universal Serial Bus) connection. The communication interface 31 transmits / receives data to / from the checker unit 6.

  The cashier unit 5 and the checker unit 6 may be configured to include modules each composed of a field programmable gate array (FPGA), a digital signal processor (DSP), or the like, or may not have the CPU 27. . In this case, the cashier unit 5 and the checker unit 6 include nonvolatile memories such as an EEPROM (Electrically Erasable and Programmable Read Only Memory), a flash memory, and a flash memory type memory card, respectively, and store module firmware.

  The nonvolatile memory can write firmware via the portable recording medium 34 or the communication interface 31. As described above, the cashier unit 5 and the checker unit 6 can also update the firmware by rewriting the firmware stored in the nonvolatile memory.

  FIG. 3 is a functional block diagram of the cashier unit 5. The control unit 7 of the cashier unit 5 includes a data receiving unit 36, a product information obtaining unit 37, a product master holding unit 38, a personal identification number generating unit 39, a product information (transaction log) registration unit 40, and a product information (transaction log) holding unit 41. , The personal identification number / transaction number input unit 42, the personal identification number determination unit 43, and the return processing unit 44.

  The data receiving unit 36 receives information from the POS server 2 and the checker unit 6, respectively. For example, from the checker unit 6, the barcode of the product read by the fixed scanner 20 and the input data relating to the quantity and discount of the product input by operating the touch panel 25 are received. Further, the POS server 2 receives product master information related to the target department in the target store.

  The product information acquisition unit 37 inquires and acquires the product master holding unit 38 for information corresponding to the product barcode input from the checker unit 6. FIG. 4 is a diagram illustrating a data configuration of the product master holding unit 38, and stores information on “department”, “product name”, and “product unit price” of a product corresponding to “product code”. Therefore, the product information acquisition unit 37 acquires information on “department”, “product name”, and “product unit price” corresponding to the barcode of the product input from the checker unit 6.

  The password generation unit 39 generates an arbitrary password for one transaction. The merchandise information (transaction log) registration unit 40 registers the merchandise information acquired by the merchandise information acquisition unit 37 and the password information generated by the password generation unit 39 in the product information (transaction log) holding unit 41. To do.

  FIG. 5 is a diagram showing a data structure of the product information (transaction log) holding unit 41. For each product code, the “department”, “product name”, “product unit price (yen)”, to which the product of the product code corresponds, Product information including information on "quantity", "discount amount (yen)", "product price after discount (yen)", "price (=" quantity "x" product price after discount (yen) ")" Hold. Further, information of “password” and “transaction serial number” is stored.

  On the other hand, the personal identification number / transaction serial number input unit 42 functions during the return processing of the product, and the personal identification number / transaction serial number input unit 42 inputs the personal identification number and transaction serial number regarding the returned product via the data receiving unit 36. The personal identification number determination unit 43 refers to the product information (transaction log) holding unit 41 based on the information input to the personal identification number / transaction serial number input unit 42, and the personal identification number and transaction serial number input to the personal identification number / transaction serial number input unit 42. It is determined whether the product corresponding to the item is a return product without fraud. If the product is an unauthorized return product, the return processing unit 44 performs a return process.

In the above configuration, the processing operation of this example will be described below.
First, processing up to receipt issuance for a shopper will be described. FIG. 6 is a flowchart for explaining this process. First, a shopper who enters the store goes around the store, puts a desired product into the shopping cart, and goes to the checker unit 6. The checker takes out the merchandise from the shopping basket and reads the barcode given to the merchandise by the above-described fixed scanner 20 (step (hereinafter referred to as S) 1). And the above-mentioned goods master holding part 38 is searched with the read barcode (S2). For example, in the case of the example shown in FIG. 4, if the barcode read by the fixed scanner 20 is “1234567890111”, the “product name” is “tempura” and the corresponding “department” from the product master holding unit 38, Information of “product name” and “product unit price (yen)” is read. That is, information of “100”, “tempura”, and “198 (yen)” is read out.

  The above processing is performed by the product information acquisition unit 37 described above, and based on the barcode input via the data reception unit 36, the corresponding “department”, “product name”, “product unit price” from the product master holding unit 38 are processed. (Yen) "is read out.

  Next, the retrieved product information (information such as product name and price) is stored in the memory (RAM 29) (S3), and it is determined whether the product registration is completed (S4). If the product remains in the shopping basket, the product registration process has not been completed yet (S4 is NO), and the above process is repeated (S1 to S4).

  That is, the product is further taken out from the shopping basket, the barcode given to the product is read by the fixed scanner 20 (S1), the product master holding unit 38 is searched (S2), and the corresponding “department”, “product name”, Information on “product unit price (yen)” is read from the product master holding unit 38. For example, if the barcode read by the fixed scanner 20 is “1234567890222”, information on “product name” and “bento” is read and stored in the memory (S3). If the barcode read by the fixed scanner 20 is “1234567890333”, information on “product name” and “sashimi” is read and stored in the memory (S3).

  Thereafter, when the processing of all the products in the shopping basket is completed, the product registration processing is completed (S4 is YES), and the subtotal amount and the total score are calculated from the information of the products stored in the memory (S5). That is, the subtotal amount and the total number of points are calculated based on the unit price and purchase quantity of each product and the discount amount.

  Next, the shopper moves to the cashier unit 5 and delivers the cash to the cashier. The cashier unit 5 calculates a change from the cash deposited (S6), and issues a receipt by the printer 16 (S7).

  FIG. 7 shows an example of a receipt issued by the printer 16, specifically, a purchase slip 45 and a personal identification number slip 46 shown in FIG. The purchase slip 45 is a slip on which product information (transaction log) is printed. In the example shown in FIG. 7, each of the products “milk”, “bread”, “steak meat”, and “grilled meat sauce” is provided. Information such as the product name, the number of points purchased, and the total amount when 4 items in total are purchased is printed. Furthermore, the transaction serial number: XXX is also printed. The printing of the return code number will be described later.

  On the other hand, on the personal identification number slip 46, the personal identification number information generated by the personal identification number generation unit 39 is printed. Further, as shown in FIG. 7, a description such as “Please present this PIN when returning goods” is performed on the PIN card 46 to prevent the PIN card 46 from being thrown into a trash box or the like. The cashier gives the purchase slip 45 and the password slip 46 to the shopper.

  Thereafter, the cashier unit 5 stores the transaction log and the information of the return code printed on the issued password slip 46 (S8). This processing is performed by the product information (transaction log) registration unit 40 described above, and is registered in the product information (transaction log) holding unit 41 (S8). Accordingly, product information (transaction log) for each product transaction in the store is stored in the product information (transaction log) holding unit 41, and is used in subsequent returns processing.

  For example, as shown in FIG. 5, in the case of the above-mentioned product code “1234567890111”, in addition to the information of the above “department”, “product name”, “product unit price (yen)”, “quantity” “1”, “value” Information on discount (Yen) “99”, “Unit price after discount (Yen)” “99”, “Price” “99” is also stored, and “PIN” and “Transaction” related to the transaction (transaction log) "Serial number" is also saved. For example, the “password” “1234” is the return code printed on the password slip 46, and the “transaction number” “1111” is the transaction number printed on the purchase slip 45.

  The same applies to other product codes “1234567890222” (“product name” “bento”) and “1234567890333” (“product name” “sashimi”), etc. The “password” and “transaction serial number” are stored in the product information (transaction log) holding unit 41, and are used in subsequent returns processing.

Next, merchandise return processing will be described. FIG. 8 is a flowchart for explaining this process.
The customer who wants to return the merchandise reenters the store, for example, goes to the checker unit 6 and hands over the merchandise to be returned to the store clerk (checker), the purchase slip 45 and the identification number slip 46. First, the checker depresses the “return” key of the multi-item keyboard 20 (step (hereinafter referred to as ST) 1), and displays the return confirmation screen shown in FIG. On the return confirmation screen, a transaction serial input box 48 and a return code input box 49 are displayed. The store clerk confirms the transaction serial number printed on the presented purchase slip 45, and enters this transaction serial number in the input box 48 (ST2). Further, the return code printed on the password slip 46 is entered in the return code input box 49 (ST3).

  The personal identification number determination unit 43 refers to the product information (transaction log) holding unit 41 based on the input information and determines whether the personal identification number acquired by the personal identification number determination unit 43 matches the transaction serial number (ST4). As described above, the transaction serial number and the return code number are unique to one transaction and are a fixed combination. Accordingly, referring to the product information (transaction log) holding unit 41, if the combination that matches the transaction serial number input from the personal identification number / transaction serial number input unit 42 and the personal identification number upon return is not registered, the personal identification number determination unit 43 It is determined that the return is illegal (NO in ST4).

  On the other hand, when the combination of the transaction serial number and the personal identification number (return personal identification number) matches (YES in ST4), it is determined that there is no fraudulent return and the barcode attached to the product is read (ST5). The product master holding unit 38 is searched with the code (ST6), and the product information such as the searched product name and price is stored in the memory (ST7).

  Further, it is determined whether or not the product to be registered has been completed, that is, whether or not the above processing has been completed for all products that the customer wishes to return (ST8). The code is read, the product master holding unit 38 is searched with the read barcode, and the product information such as the searched product name and price is stored in the memory (ST5 to ST7). Then, when all the above-described processing of the merchandise to be returned is completed (YES in ST8), the subtotal amount and the total score are calculated (ST9), the return receipt is printed and issued to the customer (ST10).

  Therefore, for example, when the purchase slip 45 is picked up, the corresponding product is procured from the store, and the product is illegally returned, the determination is NO in the determination (ST4), and the fraud can be prevented beforehand. In other words, some shopper may discard the received purchase vote 45 or the personal identification number vote 46 in a trash box or the like without considering the return of the product. For example, the purchase vote 45 is picked up from the trash box and is added to the purchase vote 45. There are cases where the listed products are procured from the store, the products are illegally returned, and money is sought. However, in this example, at the time of return processing as described above, it is necessary to enter the return code along with the transaction serial number described in the purchase slip 45. For example, when only the purchase slip 45 is brought Therefore, it is not possible to input the personal identification number, and it is possible to avoid the return processing of an illegal product.

  Further, even when the password slip 46 is brought together with the purchase slip 45, the probability that the purchase slip 45 picked up from the trash can etc. coincides with the password slip 46 is low. Even if the personal identification number is input, the determination (ST4) is NO, and it can be determined that this is an illegal return of goods.

  Further, by including the description of the return code number *** shown in parentheses in the purchase slip 45 of FIG. 7, it becomes a check against those who try to cheat using the purchase slip 45. That is, it is possible to know the existence of a personal identification number related to the purchase slip 45 from the above description written on the purchase slip 45 and to discourage fraud.

  As described above, according to the present embodiment, it is possible to prevent fraud using the return processing of merchandise, further to check fraud and to prevent fraud. In addition, the device for preventing unauthorized use of the trashed receipt of this embodiment can prevent fraud without using a recording medium such as a card or a wireless tag, and can be implemented without providing new equipment in the current POS system. can do.

  In the above embodiment, the example in which the purchase slip 45 on which the transaction serial number is recorded and the personal identification number slip 46 on which the personal identification number is printed is described separately. For example, the purchase slip 45 on which the transaction serial number is printed. A perforation may be formed at the boundary of the personal identification number slip 46 on which the personal identification number is printed, and printed out as an integrated receipt. In this case, however, the clerk of the cashier unit 5 must always separate the purchase slip and the personal identification number slip at the perforation and hand them to the shopper as separate purchase slips 45 and personal identification number slips 46.

  In the description of the above embodiment, the transaction serial number and the return code number are confirmed with reference to the transaction serial number and password corresponding to each product code in the product information (transaction log) holding unit 41. (Transaction log) An area for storing the correspondence between the transaction serial number and the return code number may be provided in the holding unit 41, and the above-described transaction serial number and the return code number may be confirmed by directly referring to this area. .

  Furthermore, the product names, product unit prices, etc. used in the above description are examples, and it is needless to say that information such as product names, product unit prices, etc. described in the databases of FIGS. 4 and 5 can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 POS system 2 POS server 3 POS terminal 4 Network 5 Cashier unit 6 Checker unit 7 Control unit 8 Keyboard 9 Automatic change machine 10 Cash drawer 11 Automatic fishing ticket machine 12 Magnetic card reader 13 Touch panel 14 Display 15 Customer display 16 Printer 18 Lane stand 19 support 20 fixed scanner 21 speaker 22 multi-item keyboard 23 display 24 customer display 25 touch panel 27 CPU
28 bus 29 RAM
30 HDD
31 Communication Interface 32 Graphic Processing Device 33 Input / Output Interface 34 Portable Recording Medium 36 Data Receiving Unit 37 Product Information Acquisition Unit 38 Product Master Holding Unit 39 PIN Number Generation Unit 40 Product Information (Transaction Log) Registration Unit 41 Product Information (Transaction Log) ) Holding unit 42 PIN / transaction number input unit 43 PIN number determination unit 44 Return processing unit 45 Purchase slip 46 PIN number slip

Claims (7)

A product information acquisition unit that acquires information on products purchased by the customer;
A storage unit that generates a password corresponding to the product information, and stores the generated password along with a transaction serial number of the product information;
A printing unit that prints a purchase slip in which a transaction serial number of the product information to be passed to the customer is recorded, and a password slip in which the password is recorded;
When the product is returned, an input unit for inputting the transaction serial number recorded in the purchase slip and the personal identification number recorded in the personal identification number slip;
A transaction serial number input from the input unit and a personal identification number are compared with the transaction serial number stored in the storage unit and a personal identification number; if at least one does not match, a determination unit that determines that the product is an illegal return;
An apparatus for preventing illegal use of a reclaimed receipt, characterized by comprising:   The acquisition of the product information is a process of reading an identification code attached to the product, searching for master information of the product, and acquiring product name and price information corresponding to the identification code. The apparatus for preventing unauthorized use of a reclaimed receipt according to claim 1.   3. The apparatus according to claim 1, wherein the purchase slip on which the transaction serial number is recorded and the password slip on which the password is recorded are printed out separately.   3. The purchase slip in which the transaction serial number is recorded and the personal identification number slip in which the personal identification number is recorded are printed and output as an integrated receipt having a perforation formed at a boundary. Device for preventing unauthorized use of the listed receipt receipt.   5. The fraudulent use of the rounding receipt according to claim 1, 2, 3, or 4, wherein the purchase slip has a description indicating that a password corresponding to the purchase slip is set. Prevention device. Product information acquisition processing to acquire information on products purchased by customers,
Generating a password corresponding to the product information, and storing the generated password along with a transaction serial number of the product information in a storage unit;
Processing for printing a purchase slip in which a transaction serial number of the product information to be passed to the customer is recorded and a password slip in which the password is recorded;
When the product is returned, a process of inputting the transaction serial number recorded in the purchase slip and a password recorded in the password slip;
Compare the transaction serial number and the password stored in the storage unit with the input transaction serial number and the password, and if at least one does not match, a process for determining that the product is an illegal return;
A method for preventing illegal use of a reclaimed receipt, characterized by: Product information acquisition processing to acquire information on products purchased by customers,
Generating a password corresponding to the product information, and storing the generated password along with a transaction serial number of the product information in a storage unit;
Processing for printing a purchase slip in which a transaction serial number of the product information to be passed to the customer is recorded and a password slip in which the password is recorded;
When the product is returned, a process of inputting the transaction serial number recorded in the purchase slip and a password recorded in the password slip;
Compare the transaction serial number and the password stored in the storage unit with the input transaction serial number and the password, and if at least one does not match, a process for determining that the product is an illegal return;
A program that runs a computer using a computer.