JP7503303B2 - Product sales data processing device, program, cloud server - Google Patents

Description

The present invention relates to a product sales data processing device, a program, and a cloud server.

Currently, devices such as POS registers used in supermarkets and other places are becoming more sophisticated and their operation is becoming more complex (see, for example, Patent Document 1).

JP 2019-032606 A

However, conventional devices such as the device described in Patent Document 1 still require complicated operations, and there is room for improvement in terms of operability.

The present invention was made in consideration of these circumstances, and aims to provide technology that improves operability.

One aspect of the present invention for solving the above-mentioned problems is a product sales data processing device that registers products, and includes a registration means for registering products to be purchased, a display means for displaying a product list of products registered by the registration means, and a tax rate operation means for accepting a tax rate operation to determine a tax rate to be applied to a multi-tax rate product for which multiple applicable tax rates are set, and the tax rate operation means is characterized in that it accepts the tax rate operation individually for the multi-tax rate product for which multiple purchases are made.

1 is a perspective view illustrating an example of the appearance of a POS terminal according to a first embodiment. FIG. 2 is a diagram illustrating an example of the configuration of a POS terminal according to the first embodiment. 4 is a display example of a POS terminal according to the first embodiment. 4 is a display example of a POS terminal according to the first embodiment. 4 is a display example of a POS terminal according to the first embodiment. 4 is a display example of a POS terminal according to the first embodiment. 11 is a display example of a POS terminal according to the first embodiment. 4 is a display example of a POS terminal according to the first embodiment. 4 is a display example of a POS terminal according to the first embodiment. 4 is a display example of a POS terminal according to the first embodiment. 5 is a flowchart showing an example of the operation of the POS terminal according to the first embodiment. 5 is a flowchart showing an example of the operation of the POS terminal according to the first embodiment. 5 is a flowchart showing an example of the operation of the POS terminal according to the first embodiment. 13 is a display example of a mobile terminal according to the second embodiment. 13 shows a display example of a mobile terminal according to the second embodiment. 13 is a display example of a settlement device according to the second embodiment. 13 is a display example of a mobile terminal according to the second embodiment. 4 is a display example of a POS terminal according to the first embodiment.

First Embodiment
The first embodiment will be described with reference to Figures 1 to 13. Figure 1 is a perspective view showing an example of the appearance of a POS terminal 20 according to the first embodiment. Figure 2 is a diagram showing an example of the configuration of a POS terminal 20 according to the first embodiment. In Figures 1 and 2, the same parts are given the same reference numerals.

The POS terminal 20 can perform a product registration process to register purchased products and a settlement process (also called a payment process or accounting process) to settle (account) the registered products.

With reference to FIG. 1, an example of the configuration of the POS terminal 20 shown in FIG. 2 will be described. The POS terminal 20 comprises a CPU 201, a ROM 202, a RAM 203, a scanner unit 204, a store clerk display unit 205, a customer display unit 206, a hard disk 207, a key operation unit 208, a card payment unit 209, a printing unit 210, an audio output unit 211, a communication unit 212, and a drawer 213. These can communicate with each other via a bus 215.

The CPU 201 is a central processing unit that controls the operation of the POS terminal 20 by reading and executing programs stored in the ROM 202 .
The ROM 202 is a read-only memory, and stores various information used by the CPU 201, including programs.

RAM 203 is a read/write memory that stores various information. For example, RAM 203 stores information acquired from the outside (e.g., product files acquired from a store controller (not shown)) and information generated during processing (e.g., registration information generated during the registration process, settlement information generated during the settlement process, etc.). In the following description, either or both of the registration information and settlement information may be referred to as transaction information.

The scanner unit 204 optically reads (scans), for example, a barcode or a two-dimensional code attached to a product.
The sales clerk display unit 205 is a touch display for sales clerks, which displays various information to sales clerks and receives various inputs from sales clerks.
The customer display unit 206 is a touch display for customers, which displays various information to customers and accepts various inputs from customers.

Note that products may be registered without using the scanner unit 204. For example, a button (preset button) corresponding to each product may be displayed on the store clerk display unit 205, and the product corresponding to the button may be registered based on the operation (touch) of the button.

The hard disk 207 stores various information. For example, the hard disk 207 may store programs executed by the CPU 201 instead of the ROM 202. Also, instead of the RAM 203, the hard disk 207 may store information acquired from the outside or information generated during processing.

The key operation unit 208 is made up of various keys (buttons) and receives various inputs from the store clerk.
The card payment unit 209 reads information from various cards (credit cards, transportation cards, etc.) to execute non-cash payments. The card payment unit 209 may include, for example, a card recognition unit (reading unit), a display unit, and an operation unit, but it is sufficient if it includes at least the card recognition unit. The card recognition unit can also read point cards when giving or using points.

The printing unit 210 is a printing unit that ejects media, and prints and issues various media such as receipts.
The audio output unit 211 outputs audio. For example, the audio output unit 211 outputs audio guidance and the like.
The communication unit 212 transmits and receives information to and from other devices (other POS terminals 20, a store controller (not shown), etc.).

The drawer 213 is a storage unit that stores the coins received from the customer, and allows the coins to be removed from the storage unit or stored in the storage unit in response to the operation of the clerk display unit 205 or the key operation unit 208. Note that the POS terminal 20 may be equipped with an automatic change dispenser instead of or in addition to the drawer 213.

(Operability of POS terminal 20)
The POS terminal 20 is designed to display a screen on the clerk display unit 205 in a way that is easier to understand for the clerk who is the operator, and allows the clerk to operate it more easily. Specifically, when registering a product to which one of multiple tax rates is applied (hereinafter referred to as a multiple tax rate product), a screen that can be intuitively (sensibly, visually) understood is provided, so that even a clerk who is unfamiliar with the operation (such as a new employee) can easily select one of the tax rates. The same applies to the mobile terminal 60 and the settlement device 40 of the second embodiment.

3 to 10 are examples of displays on the POS terminal 20 according to the first embodiment. Below, using FIG. 3 to FIG. 10, the display on the store clerk display unit 205 in a situation where one Okonomiyaki bento (price excluding tax (base price) 554 yen, price including 8% tax 598 yen, price including 10% tax 609 yen) and three tuna rice balls (price excluding tax 115 yen, price including 8% tax 124 yen, price including 10% tax 126 yen) are registered as specific examples of multiple tax rate products will be described. The POS terminal 20 (as well as other devices such as the mobile terminal 60 and settlement device 40 of the second embodiment) refers to a file (for example, a product file stored in the device itself or another device) that stores whether or not a product is a multiple tax rate product (or queries another device) to determine whether or not the product is a multiple tax rate product.

Figure 3 shows the display contents of the registration screen in a scene where canned beer (price 215 yen including 10% tax) is registered as the first item and asparagus (price 215 yen including 8% tax) is registered as the second item. The area on the left side of the registration screen is an area that displays a list of registered products (called the product list area; the same applies to other screens such as the sub-plan screen). In the product list area, the registration information of the products in the transaction (canned beer as the first item and asparagus as the second item) is displayed in an operable (touchable) manner. The area on the right side of the registration screen is an area that displays preset buttons. The subtotal button BT10 at the bottom of the registration screen is a button that accepts an operation to complete the registration of the products. The subtotal button BT10 is a button whose operation is valid when at least one product is registered. In the scene of Figure 3, two products are registered, so the operation of the subtotal button BT10 is valid. Therefore, the subtotal button BT10 is displayed in a display mode (indicated by a solid line frame in the figure) that indicates that the operation is valid.

Figure 4 shows the display content in the scene shown in Figure 3 where the store clerk uses the scanner unit 204 to scan the barcode attached to the Okonomiyaki bento (hereinafter, scanning the barcode attached to the product XX using the scanner unit 204 will simply be referred to as scanning the product XX). In other words, when the store clerk scans a multiple tax rate product (Okonomiyaki bento) (the same applies when the store clerk operates a preset button corresponding to a multiple tax rate product), the POS terminal 20 displays a small screen SG01 relating to the multiple tax rate product (Okonomiyaki bento) in front of the registration screen, as shown in Figure 4.

The small screen SG01 has a message display area MG01 and a product information display area HR01. The message display area MG01 displays a message encouraging the store clerk to press one of the buttons (the Yes button BT20 or the No button BT21, which will be described later). The product information display area HR01 displays the price of the multiple tax rate product (Okonomiyaki bento) by sales type. Specifically, the price of 609 yen (10% consumption tax) for eating in the store and 598 yen (8% consumption tax) for takeaway are displayed side by side. The small screen SG01 also has a Yes button BT20 and a No button BT21.

The store clerk confirms with the customer and operates (selects) the Yes button BT20 if the multiple tax rate product (Okonomiyaki bento) is to be eaten in the store, and operates (selects) the No button BT21 if it is to be taken away.

Figure 5 shows the display contents of the registration screen when the store clerk operates the No button BT21 on the small screen SG01 from the scene in Figure 4. In other words, when the store clerk operates the No button BT21 on the small screen SG01, the POS terminal 20 erases the small screen SG01 and reflects (generates, stores, displays, etc. registration information) the operation contents on the small screen SG01 (operation contents for take-out). For example, the product list area of the registration screen in Figure 5 displays the take-out price of the product (Okonomiyaki bento) as the operation contents on the small screen SG01. Note that the star in the product list area on the registration screen in Figure 5 (similar to the registration screens in Figures 6 and 9, the small screen in Figure 10, etc.) indicates that the product (Okonomiyaki bento in this example) is a multiple tax rate product.

Figure 6 shows the display contents of the registration screen when the store clerk operates the Yes button BT20 on the small screen SG01 from the scene in Figure 4. In other words, when the store clerk operates the Yes button BT20 on the small screen SG01, the POS terminal 20 erases the small screen SG01 and reflects (generates, stores, displays, etc. registration information) the operation contents on the small screen SG01 (operation contents to dine in at the restaurant). For example, in the product list area of the registration screen in Figure 5, the price of the product (Okonomiyaki bento) for dine in at the restaurant is displayed as the operation contents on the small screen SG01.

In this example, the number of okonomiyaki bentos purchased is one, but if the number of purchases is multiple, the store clerk performs a multiple registration operation according to the number of purchases while the small screen SG01 is displayed (for example, pressing the "x" button on the key operation unit 208 to input the number, or pressing the "x" button one or more times, etc.). When the store clerk performs a multiple registration operation while the small screen SG01 is displayed, the POS terminal 20 displays the small screen SG02 (described later) instead of the small screen SG01.

The following explanation assumes that the store clerk operates the No button BT21 on the small screen SG01, but the same applies if the store clerk operates the Yes button BT20 on the small screen SG01.

Figure 7 shows the display contents in the scene in Figure 5 where the store clerk scans the tuna rice ball and then performs a multiple registration operation corresponding to the purchase quantity "3" (for example, pressing the "X" button on the key operation unit 208 and then inputting the quantity "3", or pressing the "X" button twice). In other words, when the store clerk scans the multiple tax rate product (tuna rice ball), the POS terminal 20 displays a small screen SG01 (not shown) related to the multiple tax rate product (tuna rice ball) in front of the registration screen, and when the store clerk performs a multiple registration operation corresponding to the purchase quantity "3" while the small screen SG01 is displayed, the POS terminal 20 displays a small screen SG02 (Figure 7) related to the multiple tax rate product (tuna rice ball) in front of the registration screen instead of the small screen SG01 related to the multiple tax rate product (tuna rice ball).

In this example, for a product with multiple purchases, the store clerk performs the multiple registration operation after scanning the product, but the store clerk may perform the multiple registration operation before scanning the product. If the multiple registration operation is performed before scanning the product, the POS terminal 20 does not need to display the small screen SG01. For example, if the store clerk performs the multiple registration operation according to the purchase quantity "3" from the scene in FIG. 5 and then scans a tuna rice ball, the small screen SG02 (FIG. 7) related to the multiple tax rate product (tuna rice ball) may be displayed immediately (i.e., without displaying the small screen SG01 (not shown) related to the multiple tax rate product (tuna rice ball)).

Small screen SG02 is provided with a message display area MG02 and a product information display area HR01. Also arranged on small screen SG02 are selection buttons BT30 (selection buttons BT30-1, BT30-2, BT30-3) whose number corresponds to the number of registered tuna rice balls ("3" in this example). Each selection button BT30 lists the prices for the multiple tax rate product (tuna rice balls) by sales mode: ¥126 (10% consumption tax) for eat-in and ¥124 (8% consumption tax) for take-out. Also arranged on small screen SG02 are a yes button BT40 and a take-all button BT41.

The store clerk confirms with the customer that for the multiple tax rate product (tuna rice balls), if all three are to be eaten in the restaurant, they operate all three selection buttons BT30 (selection buttons BT30-1, BT30-2, BT30-3) and then operate the Yes button BT40; if two are to be eaten in the restaurant, they operate any two of the three selection buttons BT30 and then operate the Yes button BT40; if one is to be eaten in the restaurant, they operate any one of the three selection buttons BT30 and then operate the Yes button BT40; and if all three are to be taken away, they do not operate any of the three selection buttons BT30 and then operate the take all away button BT41.

The Yes button BT40 is a button whose operation is valid when at least one of the selection buttons BT30 is selected (selected state). In the scene of FIG. 7, none of the selection buttons BT30 are operated (unselected state), so operation of the Yes button BT40 is not valid. Therefore, the Yes button BT40 is displayed in a display mode (indicated by a dashed frame in the figure) that indicates that operation is not valid. The Take All Back button BT41 is a button whose operation is valid when all of the selection buttons BT30 are unselected. In the scene of FIG. 7, all of the selection buttons BT30 are unselected, so operation of the Take All Back button BT41 is valid. Therefore, the Take All Back button BT41 is displayed in a display mode (indicated by a solid frame) that indicates that operation is valid.

Figure 8 shows the display contents of the small screen SG02 when the store clerk operates any two of the three selection buttons BT30 on the small screen SG02 (in this example, selection buttons BT30-1 and BT30-2) from the scene in Figure 7.

As shown in FIG. 8, the two selection buttons BT30 (selection buttons BT30-1, BT30-2) operated by the store clerk are displayed in a display mode indicating that they are selected (shown with a dotted background in the figure), and the one selection button BT30 (selection button BT30-3) not operated by the store clerk is displayed in a display mode indicating that they are not selected (shown with a plain background in the figure). In addition, the two selection buttons BT30 (selection buttons BT30-1, BT30-2) operated by the store clerk, that is, the selection buttons BT30 displayed in a display mode indicating that they are selected, display the in-store price of the multiple tax rate product (tuna rice ball). On the other hand, the one selection button BT30 (selection button BT30-3) not operated by the store clerk, that is, the selection button BT30 displayed in a display mode indicating that they are not selected, displays the takeaway price of the multiple tax rate product (tuna rice ball).

In other words, when the POS terminal 20 receives an operation of one of the selection buttons BT30 (for example, selection button BT30-1), it switches the display mode of that selection button BT30 (selection button BT30-1) from a non-selected state (plain background) to a selected state (dotted background) and displays the price of in-store dining within the button (the take-out price is erased), and the other two selection buttons BT30 (selection buttons BT30-2, BT30-3) remain in a non-selected state and display the take-out price within the button (the take-out price is erased). In addition, the POS terminal 20 switches the Yes button BT40 from a display mode indicating that the operation is invalid (dashed frame) to a display mode indicating that the operation is valid (solid frame), and switches the Take All Button BT41 from a display mode indicating that the operation is valid to a display mode indicating that the operation is invalid. Next, when the POS terminal 20 receives operation of another selection button BT30 (for example, selection button BT30-2), it switches the display mode of that selection button BT30 (selection button BT30-2) from a non-selected state to a selected state, and displays the price of in-store food instead of the takeaway price as the price within the button.

Each time the selection button BT30 is operated, it switches from unselected state to selected state to unselected state to...

Figure 9 shows the display contents of the registration screen when the store clerk operates the Yes button BT40 on the small screen SG02 from the scene in Figure 8. In other words, when the store clerk operates the Yes button BT40 on the small screen SG02, the POS terminal 20 erases the small screen SG02 and reflects (generates, stores, displays, etc. registration information) the operation contents on the small screen SG02 (the operation contents of the selection button BT30 to select takeaway). For example, in the product list area of the registration screen in Figure 9, the operation contents on the small screen SG02 are displayed, showing the price of two of the product (tuna rice balls) to eat in the restaurant and the price of one as takeaway.

Figure 10 shows the display contents of the subtotal screen when the store clerk operates the subtotal button BT10 from the scene in Figure 9. As shown in Figure 10, even on the subtotal screen after the operation of the subtotal button BT10, stars are displayed in the product list area for products with multiple tax rates (Okonomiyaki bento, tuna rice balls).

(Changing tax rates for registered products with multiple tax rates)
The POS terminal 20 allows the tax rate (sales mode) of registered multiple tax rate products (multiple tax rate products displayed in the product list area) to be changed. That is, it is possible to change the consumption tax from 8% to 10% (from takeaway to dine-in), or to change the consumption tax from 10% to 8% (from dine-in to takeaway). Specifically, the store clerk specifies the multiple tax rate product for which the tax rate is to be changed (touches the display area of one multiple tax rate product) from the product list area, and changes the tax rate. More specifically, the following change methods A to D are possible, for example.

(Change method A)
Change method A is a method in which a product with multiple tax rates that is the subject of a tax rate change is specified from the product list area after a tax rate change declaration operation (an operation that results in a tax rate change declaration). In other words, change method A is a method in which a tax rate change declaration operation is performed before a product with multiple tax rates that is the subject of a tax rate change is specified. The tax rate change declaration operation in change method A is, for example, the operation of the "tax change" button on the key operation unit 208, but may be another operation.

(Display of small screen SG01 by change method A)
When the store clerk designates a multiple tax rate product with one registration number (Okonomiyaki bento in the examples of Figs. 5, 6, and 9) from the product list area of the registration screen after declaring the tax rate change, the POS terminal 20 displays the small screen SG01 related to the multiple tax rate product (the designated multiple tax rate product) in front of the registration screen. When the store clerk operates the small screen SG01 to change the tax rate (sales mode) of the multiple tax rate product, the POS terminal 20 reflects the operation contents (change contents) on the small screen SG01 (updates the stored registration information, updates the registration information on the registration screen, etc.). The same applies when the store clerk operates the small screen SG01 displayed in front of the registration screen in other change methods (change methods B to D described later).

The same applies when the clerk selects a multiple tax rate product with one registration from the product list area on the small display after declaring a tax rate change. That is, when the clerk selects a multiple tax rate product with one registration (Okonomiyaki bento in the example of FIG. 10) from the product list area on the small display after declaring a tax rate change, the POS terminal 20 displays the small display SG01 related to the multiple tax rate product in front of the small display. When the clerk operates the small display SG01 to change the tax rate (sales mode) of the multiple tax rate product, the POS terminal 20 reflects the operation content (change content) on the small display SG01 (updates the stored registration information, updates the registration information on the small display, etc.). The same applies when the clerk operates the small display SG01 displayed in front of the small display in other change methods (change methods B to D described later).

The POS terminal 20 may notify the current (before change) sales status and tax rate of a multiple tax rate product (multiple tax rate product with one registration) designated by the store clerk as a tax rate change target on the small screen SG01. For example, if the current sales status of the favorite bento designated by the store clerk is take-out (consumption tax 8%) as shown in FIG. 5 or FIG. 9, the POS terminal 20 may further display "Currently registered as take-out (consumption tax 8%)" on the small screen SG01 shown in FIG. 4, and if the current sales status of the favorite bento designated by the store clerk is dine-in (consumption tax 10%) as shown in FIG. 6, the POS terminal 20 may further display "Currently registered as dine-in (consumption tax 10%)" on the small screen SG01 shown in FIG. 4. The same applies to other change methods described later.

(Display of small screen SG02 by change method A)
When the store clerk selects a multiple tax rate product with two or more registrations (tuna rice ball in the example of FIG. 9) from the product list area of the registration screen after declaring the tax rate change, the POS terminal 20 displays the small screen SG02 related to the multiple tax rate product in front of the registration screen. When the store clerk operates the small screen SG02 to change the tax rate (sales mode) of the multiple tax rate product, the POS terminal 20 reflects the operation content (change content) on the small screen SG02 (updates the stored registration information, updates the registration information on the registration screen, etc.). The same applies when the store clerk operates the small screen SG02 displayed in front of the registration screen in other change methods (change methods B to D described later).

The same applies when the sales clerk specifies a multiple tax rate product with two or more registered items from the product list area on the small display after declaring a tax rate change. That is, when the sales clerk specifies a multiple tax rate product with two or more registered items (tuna rice balls in the example of FIG. 10) from the product list area on the small display after declaring a tax rate change, the POS terminal 20 displays the small display SG02 related to the multiple tax rate product on the front of the small display. When the sales clerk operates the small display SG02 to change the tax rate (sales mode) of the multiple tax rate product, the POS terminal 20 reflects the operation contents (change contents) on the small display SG02 (updates the stored registration information, updates the registration information on the small display, etc.). The same applies when the sales clerk operates the small display SG02 displayed on the front of the small display in other change methods (change methods B to D described later).

The POS terminal 20 may notify the current (before change) sales status and tax rate of each of the multiple tax rate products (multiple tax rate products with two or more registered) designated by the store clerk as the tax rate change target on the small screen SG02. For example, if the current sales status of tuna rice balls designated by the store clerk is two for dine-in (consumption tax 10%) and one for takeaway (consumption tax 8%) as shown in FIG. 9, the POS terminal 20 may display the small screen SG02 shown in FIG. 8 (i.e., the small screen SG02 with the selection button BT30 of the display status reflecting the current sales status and tax rate arranged). In other words, the POS terminal 20 may display each selection button on the small screen SG02 in the same display status as the time immediately before the previous operation of the Yes button BT40 (or the take away all button BT41). The same applies to other change methods described later.

(Change method B)
Change method B is a method in which a tax rate change declaration operation is performed after specifying a multi-tax rate product to be subject to a tax rate change. In other words, in change method B, the order of specifying a multi-tax rate product to be subject to a tax rate change and the tax rate change declaration operation is reversed from that of change method A. The tax rate change declaration operation in change method A is, for example, the operation of the tax change button (described later) displayed on the small screen SG03 (described later), but may be another operation.

(Display of small screen SG01 by change method B)
When a store clerk selects a multiple tax rate product with one registration (Okonomiyaki bento in the examples of Figures 5, 6, and 9) from the product list area of the registration screen, the POS terminal 20 displays a small screen SG03 (not shown) related to the multiple tax rate product in front of the registration screen. For example, a tax change button (not shown) and a cancel button (not shown) are arranged on the small screen SG03. The tax change button is a button for declaring a tax rate change. The cancel button is a button for declaring cancellation of registration (cancellation). When a store clerk operates the tax change button on the small screen SG03, the POS terminal 20 displays a small screen SG01 related to the multiple tax rate product in front of the registration screen (the small screen SG03 may be erased, or may remain displayed if the small screen SG01 is not hidden).

The same is true if the store clerk selects a product with multiple tax rates and a single registration number (an Okonomiyaki lunch box in the example of Figure 10) from the product list area on the sub-menu screen.

(Display of small screen SG02 by change method B)
When a store clerk selects a product with multiple tax rates that has two or more registrations (tuna rice balls in the example of FIG. 9) from the product list area of the registration screen, the POS terminal 20 displays a small screen SG03 (not shown) related to the product in front of the registration screen. When a store clerk operates the tax change button on the small screen SG03, the POS terminal 20 displays a small screen SG02 related to the product in front of the registration screen (the small screen SG03 may be erased, or may remain displayed if the small screen SG02 is not hidden).

The same is true if the store clerk selects a multi-tax-rate product with two or more registered items (tuna rice balls in the example in Figure 10) from the product list area on the sub-menu screen.

(Change method C)
The change method C is a method in which a tax rate change declaration button (not shown) is placed on each of the multiple tax rate products in the product list area, and the multiple tax rate product is designated as the target of the tax rate change and the tax rate change declaration operation is performed at the same time. Each multiple tax rate product in the product list area is marked with a mark (in this example, a star mark) indicating that it is a multiple tax rate product, but the tax rate change declaration button may also serve as a mark indicating that it is a multiple tax rate product.

(Display of small screen SG01 by change method C)
When a store clerk operates the tax rate change declaration button for a multiple tax rate product with one registration (Okonomiyaki Bento in the examples of Figures 5, 6, and 9) in the product list area of the registration screen, the POS terminal 20 displays a small screen SG01 related to the multiple tax rate product in front of the registration screen.

The same is true if the store clerk selects a product with multiple tax rates and a single registration number (an Okonomiyaki lunch box in the example of Figure 10) from the product list area on the sub-menu screen.

(Display of small screen SG02 by change method C)
When a store clerk operates the tax rate change declaration button for a multiple tax rate product that has two or more registered items (tuna rice balls in the example of Figure 9), the POS terminal 20 displays a small screen SG02 relating to the multiple tax rate product in front of the registration screen.

The same is true if the store clerk selects a multi-tax-rate product with two or more registered items (tuna rice balls in the example in Figure 10) from the product list area on the sub-menu screen.

(Change method D)
Change method D is a method of simply specifying a multiple tax rate product for which the tax rate is to be changed from the product list area. When change method D is adopted, the operation of simply specifying a multiple tax rate product from the product list area is recognized as an operation declaring a tax rate change for that multiple tax rate product. For example, when canceling the registration of a multiple tax rate product, the multiple tax rate product is specified from the product list area after a product cancellation declaration operation, and when a multiple tax rate product is simply specified from the product list area (without performing a product cancellation declaration operation), it may be recognized as an operation declaring a tax rate change for that multiple tax rate product.

(Display of small screen SG01 by change method D)
When a store clerk selects a multiple tax rate product with one registration (an Okonomiyaki bento in the examples of Figures 5, 6, and 9) from the product list area of the registration screen, the POS terminal 20 displays a small screen SG01 related to the multiple tax rate product in front of the registration screen.

The same is true if the store clerk selects a product with multiple tax rates and a single registration number (an Okonomiyaki lunch box in the example of Figure 10) from the product list area on the sub-menu screen.

(Display of small screen SG02 by change method D)
When a store clerk selects a multiple tax rate product with two or more registrations (tuna rice balls in the example of Figure 9) from the product list area of the registration screen, the POS terminal 20 displays a small screen SG02 related to the multiple tax rate product in front of the registration screen.

The same is true if the store clerk selects a multi-tax-rate product with two or more registered items (tuna rice balls in the example in Figure 10) from the product list area on the sub-menu screen.

FIGS. 11 to 13 are flowcharts showing an example of the operation of the POS terminal 20 according to the first embodiment. The flowchart in FIG. 11 shows the flow of one transaction. It is assumed that no products are registered at the start of the flowchart in FIG. 11. The flowchart in FIG. 12 shows the flow of the product information generation process (step S2) in FIG. 11. The flowchart in FIG. 13 shows the flow of the tax rate change process (steps S5, S10) in FIG. 11.

In order to avoid complication, the flowcharts in Figures 11 to 13 show an example in which change method D is used to change the tax rate of a registered product with multiple tax rates. However, even if other change methods (change methods A to C) are used, the basic flow is the same, although additional processing may be added depending on the change method.

(Flowchart of FIG. 11)
Step S1: The POS terminal 20 judges whether or not a product has been scanned, etc. If a product has been scanned, etc. (Step S1: YES), the POS terminal 20 proceeds to step S2. If a product has not been scanned, etc. (Step S1: NO), the POS terminal 20 returns to step S1.

Step S2: The POS terminal 20 executes the product information generation process. Details of the product information generation process are explained in FIG. 12. Then, proceed to step S3.

Step S3: The POS terminal 20 determines whether or not the product has been scanned. If the product has been scanned (step S3: YES), the process returns to step S2. If the product has not been scanned (step S2: NO), the process proceeds to step S4.

Step S4: The POS terminal 20 determines whether a multiple tax rate product for which the tax rate is to be changed has been specified. In other words, it determines whether an operation to specify a multiple tax rate product (one registration, or two or more registrations) has been performed in the product list area of the registration screen. If a multiple tax rate product for which the tax rate is to be changed has been specified (Step S4: YES), proceed to Step S5. If a multiple tax rate product for which the tax rate is to be changed has not been specified (Step S4: NO), proceed to Step S6.

Step S5: The POS terminal 20 executes the tax rate change process. Details of the tax rate change process are explained in FIG. 13. Then, proceed to step S6.

Step S6: The POS terminal 20 determines whether the subtotal button BT01 has been operated. If the subtotal button BT01 has been operated (Step S6: YES), the subtotal screen is displayed and the process proceeds to Step S9. If the subtotal button BT01 has not been operated (Step S6: NO), the process returns to Step S3.

Step S9: The POS terminal 20 determines whether a multiple tax rate product for which the tax rate is to be changed has been specified. In other words, it determines whether an operation to specify a multiple tax rate product (one registered product, or two or more registered products) has been performed in the product list area of the sub-plan screen. If a multiple tax rate product for which the tax rate is to be changed has been specified (Step S9: YES), proceed to Step S10. If a multiple tax rate product for which the tax rate is to be changed has not been specified (Step S9: NO), proceed to Step S11.

Step S10: The POS terminal 20 executes the tax rate change process. Details of the tax rate change process are explained in FIG. 13. Then, proceed to step S11.

Step S11: The POS terminal 20 executes settlement with cash or non-cash. If cash is used, the POS terminal 20 dispenses the necessary change and prints and issues a receipt. If non-cash is used, the POS terminal 20 prints and issues a receipt. The flowchart in FIG. 11 then ends.

(Flowchart of FIG. 12)
Step S20: The POS terminal 20 judges whether the product scanned in step S1 (or step S3) of Fig. 11 is a multi-tax rate product. If it is a multi-tax rate product (step S20: YES), proceed to step S41. If it is not a multi-tax rate product (step S20: NO), proceed to step S22.

Step S22: The POS terminal 20 determines whether or not an operation to register multiple items has been performed (such as pressing the "X" button on the key operation unit 208). If an operation to register multiple items has been performed (Step S22: YES), the process proceeds to Step S33. If an operation to register multiple items has not been performed (Step S22: NO), the process proceeds to Step S23.

Step S23: The POS terminal 20 generates and stores registration information for the relevant product (one unit) at a specified consumption tax rate. The POS terminal 20 also displays (adds) information about the relevant product (one unit) in the product list area of the registration screen. The flowchart in FIG. 12 then ends (returns to the flowchart in FIG. 11). The specified consumption tax rate is, for example, 8% for food products and 10% for non-food products.

Step S33: The POS terminal 20 generates and stores registration information for the relevant product (multiple items) at a specified consumption tax rate. The POS terminal 20 also displays (adds) information about the relevant product (multiple items) in the product list area of the registration screen. The flowchart in FIG. 12 then ends (returning to the flowchart in FIG. 11).

Step S41: The POS terminal 20 displays a small screen (for example, the small screen SG01 shown in FIG. 4) on top of the registration screen that can accept the selection operation of takeaway (consumption tax 8%) or dine-in (consumption tax 10%) for the relevant product (1 item). Then, proceed to step S42.

Step S42: The POS terminal 20 determines whether or not an operation to register multiple items has been performed (such as pressing the "X" button on the key operation unit 208). If an operation to register multiple items has been performed (Step S42: YES), the process proceeds to Step S51. If an operation to register multiple items has not been performed (Step S42: NO), the process proceeds to Step S43.

Step S43: The POS terminal 20 generates, stores, and displays (adds) registration information for the relevant product (one unit) at the consumption tax rate according to the selection operation on the small screen (small screen SG01) displayed in step S41. In other words, the POS terminal 20 reflects the operation contents of the store clerk on the small screen (small screen SG01) displayed in step S41 (generates, stores, displays, etc. registration information). Then the flowchart in FIG. 12 ends (returns to the flowchart in FIG. 11).

Step S51: The POS terminal 20 displays a small screen (for example, small screen SG02 shown in FIG. 7) in front of the registration screen that can accept the selection of takeaway (consumption tax 8%) or dine-in (consumption tax 10%) for the relevant product (each of multiple products). The POS terminal 20 erases the small screen (small screen SG01) displayed in step S41 (or may leave small screen SG02 displayed if it is not hidden). Then proceed to step S53.

Step S53: The POS terminal 20 generates, stores, and displays (adds) registration information for the relevant product (each of multiple products) at the consumption tax rate corresponding to each selection operation on the small screen (small screen SG02) displayed in step S51. In other words, the POS terminal 20 reflects the operation contents of the store clerk on the small screen (small screen SG02) displayed in step S51 (generates, stores, displays, etc. registration information). Then the flowchart in FIG. 12 ends (returns to the flowchart in FIG. 11).

(Flowchart of FIG. 13)
Step S60: The POS terminal 20 determines whether the multiple tax rate product subject to the tax rate change (the multiple tax rate product specified in step S4 (or step S9) of FIG. 11) is multiple in number (multiple registrations). That is, the POS terminal 20 determines whether a multiple tax rate product with two or more registrations (for example, tuna rice balls in this example) or a multiple tax rate product with one registration (for example, an okonomiyaki bento in this example) has been specified. If there is multiple in number (step S60: YES), proceed to step S71. If there is not multiple in number (step S60: NO), proceed to step S61.

Step S61: The POS terminal 20 displays a small screen (for example, the small screen SG01 shown in FIG. 4) on top of the registration screen (or the small screen) that can accept the selection operation of takeaway (consumption tax 8%) or dine-in (consumption tax 10%) for the relevant product (1 item). Then, proceed to step S63.

Step S63: The POS terminal 20 changes the consumption tax rate for that product (one unit) to correspond to the selection operation on the small screen (small screen SG01) displayed in step S61. In other words, the POS terminal 20 reflects the operation (change) performed by the store clerk on the small screen (small screen SG01) displayed in step S61 (updating the stored registration information, updating the registration information on the registration screen (or small screen), etc.). The flowchart in FIG. 13 then ends (returning to the flowchart in FIG. 11).

Step S71: The POS terminal 20 displays a small screen (for example, the small screen SG02 shown in FIG. 7) on top of the registration screen (or the small screen surface) that can accept the selection operation of takeaway (consumption tax 8%) or dine-in (consumption tax 10%) for the relevant product (each of the multiple products). Then, proceed to step S73.

Step S73: The POS terminal 20 changes the consumption tax rate for the relevant product (each of multiple products) to correspond to the selection operation on the small screen (small screen SG02) displayed in step S71. In other words, the POS terminal 20 reflects the operation (change) performed by the store clerk on the small screen (small screen SG02) displayed in step S71 (updating the stored registration information, updating the registration information on the registration screen (or small screen), etc.). The flowchart in FIG. 13 then ends (returning to the flowchart in FIG. 11).

Note that the flowcharts in Figures 11 and 12 are flowcharts for when a multiple registration operation is performed after scanning an item for which multiple purchases have been made. However, if the multiple registration operation is performed before scanning an item, small screen SG02 may be displayed immediately (i.e., without displaying small screen SG01) as described above.

Second Embodiment
Next, a second embodiment will be described. A sales system 1 (not shown) according to the second embodiment is a system in which a customer registers a product in a product display area (product display shelf, etc.) of a store using a mobile terminal 60 (see FIG. 15(D)), and pays for the product using a payment device 40 (see FIG. 15(D)) installed in the checkout area of the store. The sales system 1 includes a cloud server (not shown), a store controller (not shown), etc., in addition to the payment device 40, as components on the system provider side.

The cloud server provides the service provided by the sales system 1 (the above-mentioned service in which the customer registers products using the mobile terminal 60 and settles the payment using the settlement device 40; hereinafter, referred to as Service A). The cloud server manages (stores) various information related to Service A (e.g., product files, customer master information, transaction information (cart information), etc.).

The store controller realizes communication between the settlement device 40 and the cloud server. For example, the store controller receives transaction information from the settlement device 40 and transmits it to the cloud server.

The settlement device 40 is a device that executes settlement processing. The settlement device 40 is basically used by the customer (the settlement processing is executed by the customer's operation).

The mobile terminal 60 is, for example, a smartphone (e.g., the customer's own smartphone) on which application software (hereinafter, App A) for using Service A is installed. The mobile terminal 60 has a communication function, an imaging function (camera), and a recognition function for recognizing various codes (barcodes, two-dimensional codes, etc.). The mobile terminal 60 also displays various screens by App A.

Figure 14 shows an example of a display on a mobile terminal 60 according to the second embodiment. Figure 15 shows an example of a display on a mobile terminal 60 according to the second embodiment.

Figure 14 (A) shows a registration screen at a time when the registration of one notebook (price including 10% tax, 220 yen) as the first product has been completed. Figure 14 (B) shows a registration screen at a time when the registration of one tuna rice ball (price including 8% tax, 124 yen) as the second product has been completed from the scene in Figure 14 (A).

As shown in Figures 14 (A) and (B), a quantity button BT603 is located for each product in the product list area of the registration screen. The quantity button BT603 is a button that displays the current quantity (number registered) and accepts an operation to change the quantity. In addition, a checkout button BT604 is located to the right of the total amount on the registration screen. The checkout button BT604 is a button that is operated when proceeding to checkout (accounting) (when completing product registration). Note that the star symbol in Figure 14 (B) indicates that the product is a multiple tax rate product, as in the first embodiment.

When a customer finds a desired product, they capture the product's barcode so that it is within a specified area (the area that says "Please scan the barcode"). The mobile terminal 60 recognizes the barcode captured in the specified area and registers the product.

In addition, the cloud server stores information similar to the information displayed in the product list area of the mobile terminal 60 as cart information. In other words, when information about a scanned product is displayed (added) as information about a certain transaction on the registration screen (product list area) of the mobile terminal 60, the product is also stored (added) as information about the transaction (cart information) in the cloud server through communication between the mobile terminal 60 and the cloud server.

Figure 14 (C) shows the display content in a scene in which the quantity button BT603 corresponding to tuna rice balls is operated from the scene in Figure 14 (B). In other words, when a customer operates the quantity BT button BT603 for a certain product, the mobile terminal 60 displays a small screen SG04 related to that product in front of the registration screen. The small screen SG04 displays the current (latest) quantity and price of that product. The small screen SG04 shown in Figure 14 (C) displays the current quantity of "1" and price of "￥124" for tuna rice balls.

In addition, the small screen SG04 is provided with a plus button BT606, a minus button BT607, a product cancel button BT608, a decision button BT609, and a back button BT610. The plus button BT606 is a button that accepts an operation to increase the quantity of the registered product (a quantity increase operation). The minus button BT607 is a button that accepts an operation to decrease the quantity of the registered product (a quantity decrease operation). The product cancel button BT608 is a button that accepts an operation to cancel the registration of the registered product (a product cancel operation). The decision button BT609 is a button that accepts an operation to confirm (confirm) the quantity increase operation using the plus button BT606, the quantity decrease operation using the minus button BT607, or the product cancel operation using the product cancel button BT608. The back button BT610 is a button that accepts an operation to simply erase the small screen SG04 (an operation to simply return without deciding using the decision button BT609).

Figure 14 (D) shows the small screen SG04 in a scene where the plus button BT606 has been operated twice from the scene in Figure 14 (C). The small screen SG04 shown in Figure 14 (D) displays the quantity "3" and the amount "￥372" after the operation.

Figure 15 (A) shows the registration screen in the scene in Figure 14 (D) where the decision button BT609 is operated. In other words, when the customer operates the decision button BT609, the mobile terminal 60 erases the small screen SG04 and reflects the operation content (quantity increase operation) on the small screen SG04. For example, in the product list area of the registration screen in Figure 15, the quantity "3" and the price "￥372" are displayed for the product (tuna rice ball).

Figure 15 (B) shows a registration screen at a point where registration of two shampoos (each priced at 360 yen including 10% tax) as the third item of merchandise and one salmon bento (priced at 432 yen including 8% tax) as the fourth item of merchandise has been completed from the scene in Figure 15 (A). Note that the operation to increase the quantity of shampoos may be performed before or after the registration of the salmon bento.

Figure 15 (C) shows the two-dimensional code display screen (a screen displaying a two-dimensional checkout code 612) in the scene in Figure 15 (B) where the checkout button BT604 is operated. In other words, when the customer operates the checkout button BT604, the mobile terminal 60 displays the two-dimensional code display screen instead of the registration screen. Note that the two-dimensional checkout code 612 may be any code that allows the device that reads the two-dimensional checkout code 612 (in this example, the checkout device 40) to ultimately (directly or indirectly) obtain information about the product registered using the mobile terminal 60 (such as information displayed in the product list area) (hence it may be a barcode rather than a two-dimensional code).

Figure 15 (D) shows how a customer has the settlement device 40 read the settlement two-dimensional code 612 displayed on the two-dimensional code display screen of the mobile terminal 60. As shown in Figure 15 (D), the settlement device 40 reads the settlement two-dimensional code 612 using the scanner unit 406.

Figure 16 shows an example of the display of the settlement device 40 according to the second embodiment (an example of the display on the display unit 405). Figure 16 (A) shows the display content (small screen SG05 displayed in front of the product confirmation screen) when the settlement device 40 reads the settlement two-dimensional code 612.

After reading the settlement two-dimensional code 612, the settlement device 40 simply displays the product confirmation screen if multiple tax rate products are not included, and displays a small screen SG05 in front of the product confirmation screen if multiple tax rate products are included. In this example, since multiple tax rate products (tuna rice balls, salmon bento) are included, the settlement device 40 displays a small screen SG05 in front of the product confirmation screen, as shown in FIG. 16 (A). Note that the product confirmation screen (as well as the payment type selection screen described below) is one of the settlement screens.

The small screen SG05 has a multiple tax rate product display area HR03. In the multiple tax rate product display area HR03, the multiple tax rate products (tuna rice balls, salmon bento) in the transaction are displayed in a list that can be operated (touched). In addition, the small screen SG05 has a No eating in the restaurant button BT50 and a Change to eating in the restaurant button BT51. The No eating in the restaurant button BT50 can be operated when there are no products that have been changed to eating in the restaurant. The Change to eating in the restaurant button BT51 can be operated when there are one or more products that have been changed to eating in the restaurant.

(When all multi-tax rate products are taken away)
If all the multiple tax rate products (in this example, the tuna rice balls and salmon bento) are to be taken away, that is, if there are no multiple tax rate products to be eaten in the restaurant, the customer operates the "No eating in the restaurant" button BT50 on the small screen SG05. When the customer operates the "No eating in the restaurant" button BT50, the settlement device 40 erases the small screen SG05.

(When consuming a multiple tax rate product with a quantity of 1 in a restaurant)
When a customer wishes to eat in a restaurant a multiple tax rate product with a quantity of one (in this example, a salmon bento), the customer designates the multiple tax rate product (a multiple tax rate product with a quantity of one to be eaten in the restaurant) in the multiple tax rate product display area HR03 of the small screen SG05 (touching the display area of the multiple tax rate product). When a customer designates a multiple tax rate product with a quantity of one in the multiple tax rate product display area HR03 of the small screen SG05, the settlement device 40 reflects the operation content (designation) in the small screen SG05 (multiple tax rate product display area HR03). Specifically, the settlement device 40 changes the display of the multiple tax rate product (one item) in the small screen SG05 (multiple tax rate product display area HR03) from takeaway to eating in the restaurant. For example, in FIG. 16 (A), when a customer selects a salmon bento from the multiple tax rate product display area HR03 of the small screen SG05, the settlement device 40 changes the display of the salmon bento in the multiple tax rate product display area HR03 of the small screen SG05 from "Salmon bento 1 (take-out) ¥432" to "Salmon bento 1 (dine-in) ¥440."

If the customer selects the salmon bento again in the multiple tax rate product display area HR03, the settlement device 40 changes the display of the salmon bento in the multiple tax rate product display area HR03 from "Salmon bento 1 (eat in store) ¥440" to "Salmon bento 1 (take out) ¥432." In other words, every time a multiple tax rate product with a quantity of 1 is selected in the multiple tax rate product display area HR03 of the small screen SG05, the settlement device 40 switches the sales mode (take out, eat in store) of the multiple tax rate product in the multiple tax rate product display area HR03 of the small screen SG05.

(When all or part of a multiple tax rate product in quantities of two or more is consumed in-store)
When a customer wishes to eat or drink all or part of a multiple tax rate product with a quantity of two or more (in this example, tuna rice balls) in the restaurant, the customer selects the multiple tax rate product (multiple tax rate product with a quantity of two or more to be eaten in the restaurant) from the multiple tax rate product display area HR03 of the small screen SG05. When a customer selects a multiple tax rate product with a quantity of two or more from the multiple tax rate product display area HR03 of the small screen SG05, the settlement device 40 displays a small screen SG06 (a screen equivalent to the small screen SG02 in FIG. 7; not shown) in front of the small screen SG05, which allows the customer to select whether to take the multiple tax rate product (each of the multiple items) home or eat in the restaurant. The customer operates the small screen SG06 to select whether to eat or drink the multiple tax rate product (each of the multiple items) in the restaurant. When the customer's operation on the small screen SG06 is completed, the settlement device 40 erases the small screen SG06 and reflects the operation content on the small screen SG06 on the small screen SG05 (multiple tax rate product display area HR03). For example, in FIG. 16A, when the customer designates the area of "Tuna onigiri 3 (0 to eat in, 3 to take away) ¥372" on the multiple tax rate product display area HR03 and the customer's operation on the small screen SG06 displayed after the designation (operation to eat two tuna onigiri in the store) is completed, the settlement device 40 changes the display of the tuna onigiri in the multiple tax rate product display area HR03 of the small screen SG05 from "Tuna onigiri 3 (0 to eat in, 3 to take away) ¥372" to "Tuna onigiri 3 (2 to eat in, 1 to take away) ¥376".

If the customer again specifies tuna rice balls in the multiple tax rate product display area HR03, the settlement device 40 again displays the small screen SG06 in front of the small screen SG05. In other words, every time a multiple tax rate product with a quantity of two or more is specified in the multiple tax rate product display area HR03 of the small screen SG05, the settlement device 40 displays the small screen SG06 in front of the small screen SG05.

Figure 16 (B) shows the product confirmation screen in the scene shown in Figure 16 (A) where the customer changes two of the three tuna rice balls to be eaten in the restaurant (without changing the salmon bento to be eaten in the restaurant), and then operates the change to eat in the restaurant button BT51.

The product confirmation screen has a product display area HR02. The product display area HR02 displays a list of all products in the transaction (notebook, tuna rice balls, shampoo, salmon bento) that can be operated. The product display area HR02 also reflects the customer's operation on the small screen SG05. In this example, the customer changed two of the three tuna rice balls to be eaten in the restaurant on the small screen SG05, so as shown in FIG. 16(B), the product display area HR02 displays two of the three tuna rice balls as being eaten in the restaurant and one as being takeaway. The product confirmation screen also has a checkout button BT1402 and a call clerk button BT1403. The checkout button BT1402 is a button that is operated when proceeding to checkout. The call clerk button BT1403 is a button that is operated when calling a clerk.

Although not shown, if the customer changes the order on the small screen SG05 so that two of the three tuna rice balls are to be eaten in the restaurant, and also changes the order on the salmon bento to be eaten in the restaurant, the display of the salmon bento in the product display area HR02 in FIG. 16(B) will be "Salmon bento, eat in the restaurant x 1, 440 yen" (the display of the tuna rice balls in the product display area HR02 in FIG. 16(B) will be maintained). Also, if the customer does not choose to eat in the restaurant on the small screen SG05 (operates button BT40), the display of the tuna rice balls in the product display area HR02 in FIG. 16(B) will be "Tuna rice balls, takeaway x 3, 372 yen" (the display of the salmon bento in the product display area HR02 in FIG. 16(B) will be maintained).

The customer checks the contents of the product display area HR02, and if there are no problems, operates the checkout button BT1402. When the customer operates the checkout button BT1402, the settlement device 40 displays a payment type selection screen (not shown) instead of the product confirmation screen. The payment type selection screen is a screen for selecting a payment type (cash, credit card, electronic money, etc.), and has buttons corresponding to each payment type and a store clerk call button. The customer operates the button corresponding to the desired payment type on the payment type selection screen to settle the payment.

In addition, the customer can also change the multiple tax rate product to takeaway/eat in the store on the product confirmation screen (product display area HR02). For example, when tuna rice ball is specified in the product display area HR02 of FIG. 16(B), the settlement device 40 displays the small screen SG06, as in the case where tuna rice ball is specified in the multiple tax rate product display area HR03 of the small screen SG05 shown in FIG. 16(A), and reflects the operation content on the small screen SG06 on the product confirmation screen (product display area HR02). Also, for example, when salmon bento is specified in the product display area HR02 of FIG. 16(B), the settlement device 40 reflects the operation content (designation) on the product confirmation screen (product display area HR02), as in the case where salmon bento is specified in the multiple tax rate product display area HR03 of the small screen SG05 shown in FIG. 16(A).

(Change to eating in the restaurant on the mobile terminal 60)
Figures 14 to 16 explain a mode in which the mobile terminal 60 does not accept an operation to change to eating in at the restaurant (in which all items with multiple tax rates are initially registered as take-out at the mobile terminal 60, and if necessary, the operation is changed to eating in at the payment device 40), but it is also possible to make the mobile terminal 60 accept an operation to change to eating in at the restaurant.

Figure 17 is an example of a display on a mobile terminal 60 according to the second embodiment. Using Figure 17, we will explain how the mobile terminal 60 accepts an operation to change to eating in.

(Change to dine-in at time of scanning)
The mobile terminal 60 may accept an operation to change the scanned multiple tax rate product (quantity is 1 because it is scanned) to dine-in when scanning a multiple tax rate product. For example, when a multiple tax rate product is scanned, the mobile terminal 60 displays a small screen SG07 (a screen equivalent to the small screen SG01 in FIG. 4, not shown) in front of the registration screen, which allows the customer to select whether to take the multiple tax rate product (one item) or to dine-in. The customer operates the small screen SG07 to select whether to dine-in for the multiple tax rate product (one item). When the customer's operation on the small screen SG07 is completed, the mobile terminal 60 erases the small screen SG07 and reflects the operation content on the small screen SG07 in the registration screen (product list area). For example, when a tuna rice ball (price 124 yen including 8% tax) is scanned as the second item from the scene in Fig. 14(A), the mobile terminal 60 displays the small screen SG07 relating to the tuna rice ball in front of the registration screen, and when the customer operates the small screen SG07 to eat in the restaurant, the mobile terminal 60 displays a registration screen as shown in Fig. 17(A). In the product list area of the registration screen in Fig. 17(A), the tuna rice ball (1 piece) is registered as an item to be eaten in the restaurant.

(Changes after registration (excluding quantity changes) (when quantity is 1))
After registering a multiple tax rate product (except when changing the quantity), the mobile terminal 60 may accept an operation to change the tax rate (sales mode) for the multiple tax rate product (1 unit). For example, when a customer specifies a multiple tax rate product (1 unit) in the product list area (touches the area of the multiple tax rate product in the product list area other than the quantity button BT603), the mobile terminal 60 displays a small screen SG07 in front of the registration screen, which allows the customer to select whether the multiple tax rate product (1 unit) is to be taken away or eaten in the store, in the same way as when the multiple tax rate product is scanned, and reflects the operation content on the small screen SG07 in the registration screen (product list area). For example, when a tuna rice ball is specified from the scene in FIG. 17(A), the mobile terminal 60 displays the small screen SG07 related to the tuna rice ball in front of the registration screen, and when, for example, a customer operates the small screen SG07 to select takeaway, the mobile terminal 60 displays a registration screen as shown in FIG. 14(B). In the product list area of the registration screen of FIG. 14(B), a tuna rice ball (1 piece) is registered as a takeaway item.

(Changes after registration (excluding quantity changes) (when quantity is 2 or more))
After registering a multiple tax rate product (except when changing the quantity), the mobile terminal 60 may accept an operation to change the tax rate (sales mode) for the multiple tax rate product (two or more). For example, when a customer specifies a multiple tax rate product (two or more) in the product list area (touches an area of the multiple tax rate product in the product list area other than the quantity button BT603), the mobile terminal 60 displays a small screen SG06 (a screen corresponding to the small screen SG02 in FIG. 7) in front of the registration screen, which allows the customer to select whether the multiple tax rate product (each of the multiple products) is to be taken away or eaten in the store, and reflects the operation content on the small screen SG06 in the registration screen (product list area). For example, when tuna onigiri is selected from the scene in Fig. 15(A), the mobile terminal 60 displays the small screen SG06 related to tuna onigiri in front of the registration screen, and when the customer operates the small screen SG06 to select two of the three to be eaten in the restaurant, the mobile terminal 60 displays a registration screen as shown in Fig. 17(B). In the product list area of the registration screen in Fig. 17(B), two of the three tuna onigiri are registered as takeaway.

(Changes after registration (when quantity is changed))
The mobile terminal 60 may accept a change operation of the tax rate (sales mode) for a multiple tax rate product when changing the quantity after registration of the multiple tax rate product. For example, when a customer operates the decision button BT609 after performing a quantity increase operation or quantity decrease operation on the small screen SG04 (see FIG. 14) for changing the quantity of a certain multiple tax rate product (specifically, when the quantity has increased or decreased), the mobile terminal 60 displays the small screen SG06 related to the multiple tax rate product (each of multiple items) or the small screen SG07 related to the multiple tax rate product (one item), and reflects the operation content on the small screen SG06 (or small screen SG07) in the registration screen (product list area). That is, when the quantity (changed quantity) at the time of operating the decision button BT609 is 2 or more, the mobile terminal 60 displays a small screen SG06 on the front of the registration screen, which allows the user to select whether to take the multiple tax rate product (each of the multiple items) as takeaway or eat in the store, and reflects the operation contents on the small screen SG06 in the registration screen (item list area). On the other hand, when the quantity (changed quantity) at the time of operating the decision button BT609 is 1 (when the quantity is reduced from 2 or more to 1), the mobile terminal 60 displays a small screen SG07 on the front of the registration screen, which allows the user to select whether to take the multiple tax rate product (one item) as takeaway or eat in the store, and reflects the operation contents on the small screen SG07 in the registration screen (item list area).

The above describes the embodiments of the present invention (first embodiment and second embodiment), but the device configuration, data configuration, processing flow, display and output aspects, etc. can be modified as appropriate, for example, as in the following modified examples. In addition, the following modified examples may be combined as appropriate.

(1) In the first embodiment, an example was described in which the POS terminal 20 displays the small screen SG02 as a screen for determining or changing the tax rate for each of two or more multi-tax rate products. However, as long as it is possible to determine or change the tax rate for each of two or more multi-tax rate products, the screen to be displayed is not limited to the small screen SG02. The same applies to the small screen SG06 in the second embodiment.

Figure 18 is an example of a display on the POS terminal 20 according to the first embodiment. For example, the POS terminal 20 may display the small screen SG12 shown in Figure 18 instead of the small screen SG02 shown in Figure 7. As shown in Figures 7 and 18, the small screen SG12 (Figure 18) has a decision button BT42 instead of the Yes button BT40 and the take all button BT41 on the small screen SG02 (Figure 7).

The store clerk checks with the customer and, for a multiple tax rate item (similar to the example in Figure 7, in Figure 18 it is tuna rice balls), if all three are to be eaten in the restaurant, he operates all three selection buttons BT30 and then operates the decision button BT42; if two are to be eaten in the restaurant, he operates any two of the three selection buttons BT30 and then operates the decision button BT42; if one is to be eaten in the restaurant, he operates any one of the three selection buttons BT30 and then operates the decision button BT42; if all three are to be taken away, he operates the decision button BT42 without operating any of the three selection buttons BT30.

(2) In the first embodiment, an example was described in which registration information for a product is displayed (added) in the product list area each time the product is scanned (or a preset button is operated), but if the same product is scanned (or a preset button is operated) multiple times, the product list area may display multiple lines of registration information according to the number of scans (or preset button operations), or may display one line of registration information that aggregates the multiple scans (or preset button operations). For example, if product A (200 yen) is scanned (one item registered) → product B (150 yen) is scanned (one item registered) → product A is scanned (two items registered), the POS terminal 20 may display product A and product B in the product list area as in display mode 1 (below) or display mode 2 (below).
(Display mode 1 of product list area)
Product A ¥200 Product B ¥150 2 units Product A ¥400 (Product list area display mode 2)
3 pieces Product A ¥600 Product B ¥150

The same is true for the mobile terminal 60 of the second embodiment, except that a quantity button BT603 is displayed. That is, the mobile terminal 60 may display product A and product B in the product list area as in display mode 1' (below) or as in display mode 2' (below). When the mobile terminal 60 displays as in display mode 2', the settlement device 40 also displays as in display mode 2', but when the mobile terminal 60 displays as in display mode 1', the settlement device 40 may display as in display mode 1' or as in display mode 2'.
(Display mode 1' of product list area)
Product A x 1 ¥200
Product B x 1 ¥150
Product A x 2 ¥400
(Display mode 2' of product list area)
Product A x 3 ¥600
Product B x 1 ¥150

(3) In relation to (2) above, in the case of a mode in which registration information resulting from multiple scans (or preset button operations) is displayed in one line in the product list area (display mode 2, display mode 2'), when changing the tax rate (sales mode) for a multiple tax rate product in which multiple scans (or preset button operations) are consolidated and displayed in one line, a small screen (small screen SG02, small screen SG06, small screen SG12, etc.) for changing the tax rate (sales mode) for a multiple tax rate product with two or more registrations is displayed.

(4) In the above embodiment, an example was described in which the tax rate (sales mode) can be determined and changed for each of the multiple tax rate products with two or more registered products, but it is not necessary to determine and change the tax rate for each of them. In other words, in the above embodiment, an example was described in which the tax rate for some of the multiple tax rate products with two or more registered products can be freely selected to be 10% (eating in the store) and the rest (other part) to be 8% (takeaway). Instead, only two options may be allowed, that is, 8% (takeaway) or 10% (eating in the store) for all of the products. For example, the device operated by the customer (mobile terminal 60, settlement device 40) may be set to only two options, that is, 8% (takeaway) or 10% (eating in the store) for all of the products. Note that the store side (service A) may be set to determine and change the tax rate (sales mode) for each of the multiple tax rate products with two or more registered products (set for all customers, or set for each customer individually).

(5) In the above embodiment, the tax rate (sales mode) of a multiple tax rate product is confirmed by displaying a small screen (small screen SG01, etc.) each time a multiple tax rate product is scanned (or a preset button is operated), but it is not necessary to confirm the tax rate (sales mode) of the multiple tax rate product each time a multiple tax rate product is scanned (or a preset button is operated). For example, at the start of a transaction (before registering one product), it is possible to check whether or not eating or drinking is to be done inside the store, and if not, to always register the tax rate as 8% (takeout) without displaying a small screen (small screen SG01, etc.), regardless of which multiple tax rate product is scanned (or a preset button is operated).

Specifically, in the first embodiment, the store clerk may, for example, at the start of a transaction, ask the customer whether or not they will be eating in the store, and if they answer that they will not be eating in the store, perform an operation on the POS terminal 20 to declare that there will be no eating in the store (for example, by operating the "No eating in the store" button on the key operation unit 208). In a transaction in which there has been a declaration of no eating in the store, if a multiple tax rate product is scanned (or a preset button is operated), the POS terminal 20 always registers it as 8% (take-out) without displaying a small screen. Note that if there is a request to change a specific multiple tax rate product to eating in the store after the declaration of no eating in the store, the multiple tax rate product is selected from the product list area and changed from take-out (8%) to eating in the store (10%).

In addition, in the second embodiment (where the mobile terminal 60 described with reference to FIG. 17 accepts an operation to change to eating in the restaurant), for example, at the start of a transaction, the customer may perform an operation on the mobile terminal 60 to declare that they will not eat in the restaurant (for example, by operating a "No eating in the restaurant" button arranged on the screen displayed before the start of the transaction). Hereinafter, the operation of the mobile terminal 60 in a transaction in which a declaration of no eating in the restaurant has been made is the same as the operation of the POS terminal 20 described above.

(6) In the first embodiment, the POS terminal 20 was described as a stationary device capable of registering products with multiple tax rates, but other devices may also be used. For example, a screen (small screen SG01, small screen SG02, small screen SG05, etc.) for determining or changing the tax rate for a product with multiple tax rates may be displayed in a fully self-service registration and settlement device that is installed in the checkout area of a store and in which customers themselves register and pay for products, or in a semi-self-service settlement device in which customers themselves pay for products that have been registered by a store clerk in another device.

(7) In the second embodiment, the mobile terminal 60 is described as a mobile (portable) device capable of registering products with multiple tax rates, but other devices may be used. For example, a screen (small screen SG01, small screen SG02, small screen SG05, etc.) for determining or changing the tax rate for a product with multiple tax rates may be displayed on a smartphone (or tablet terminal) provided by the store to a visiting customer, or on a shopping cart with a display unit (or a display device that can be attached to a shopping cart).

(8) In the above embodiment, an example was described in which small screens (small screens SG01, SG02, SG05, etc.) were displayed as screens related to the sales mode (consumption tax rate) of a multi-tax rate product, but they may be displayed as a full screen. For example, in the first embodiment, an example was described in which the POS terminal 20 displays the small screen SG01 in front of the registration screen of FIG. 3 when a store clerk scans an Okonomiyaki bento while the registration screen of FIG. 3 is displayed (FIG. 4). Instead of this, the POS terminal 20 may display a screen (a screen that is displayed in the entire area, not in a small screen) that displays the same content as the small screen SG01 instead of the registration screen of FIG. 3 in the above case. Note that, when a button on the screen a that corresponds to the Yes button BT20 on the small screen SG01 (or a button on the screen a that corresponds to the No button BT21 on the small screen SG01) is operated, the POS terminal 20 displays a registration screen (a registration screen that reflects the operation content on the screen a) instead of the screen a. In the second embodiment, the settlement device 40 displays the small screen SG05 in front of the product confirmation screen when the settlement two-dimensional code 612 is read (FIG. 16A). Alternatively, the settlement device 40 may display a screen (not a small screen but a screen that displays the entire screen, referred to as screen b) that simply displays the same content as the small screen SG05 in the above case. Note that when a button on screen b corresponding to the "No eating in the restaurant" button BT50 on the small screen SG05 (or a button on screen b corresponding to the "Change to eating in the restaurant" button BT51 on the small screen SG05) is operated, the settlement device 40 displays the product confirmation screen (a product confirmation screen that reflects the operation content on screen b) instead of screen b. Also, the same content as the small screen (small screen SG01, SG02, SG05, etc.) may be displayed in a part of the area of another screen (registration screen, small plan screen, product confirmation screen, etc.) (by enlarging the display area as necessary).

(9) In the above embodiment, the operation has been described as operating a button on the screen and operating a button on the key operation unit 208, but the operation may be either button. In other words, an operation described as operating a button on the screen may be performed by operating a button on the key operation unit 208 by arranging a similar button on the key operation unit 208 instead of or in addition to the button on the screen, and an operation described as operating a button on the key operation unit 208 may be performed by operating a button on the screen by arranging a similar button on the screen instead of or in addition to the button on the key operation unit 208.

(10) In the above embodiment, the product price is listed inclusive of tax, and the tax rate and tax-inclusive price are displayed (see FIG. 4, etc.). In addition to the above, the price excluding tax (base price) and the tax amount may be displayed. Also, in the above embodiment, the product price is listed inclusive of tax, but the price excluding tax may be displayed. Note that when the price is listed exclusive of tax, the price excluding tax, the tax rate, the tax amount, and the price including tax may be displayed.

(11) In the above embodiment, two tax rates, 8% and 10%, were given as examples of tax rates for multi-tax rate products, but other tax rates or three or more tax rates may be used.

(12) All or part of each function (input/output, storage, processing (including judgment)) in the POS terminal 20 of the first embodiment may be realized in a device other than the device described as the entity executing the function. For example, at least part of the processing described using the flowcharts of Figures 11 to 13 as the processing of the POS terminal 20 may be executed by a store controller (not shown) or a cloud server (not shown) instead of the POS terminal 20. In relation to the above, the POS terminal 20 may function as a so-called thin client specialized for input/output interfaces, etc. For example, the POS terminal 20 may accept various inputs (customer operations, detection by devices such as a scanner) and send the input information (operation information, image information, etc.) to the cloud server, and then the cloud server may execute processing according to the information received from the POS terminal 20 (input information at the POS terminal 20) and send the processing results (updated screen information, etc.) to the POS terminal 20, and then the POS terminal 20 may operate (display on the display, etc.) according to the information received from the cloud server (processing results by the cloud server). In other words, the cloud server may execute a program for controlling the operation of the POS terminal 20. The same applies to the portable terminal 60 and settlement device 40 of the second embodiment.

<Overview of the embodiment>
[Technical field]
The present invention relates to a product sales data processing device, a program, and a cloud server.
[Background Art]
Currently, devices such as POS registers used in supermarkets and the like are becoming more sophisticated and their operation is becoming more complicated (see, for example, Patent Document 1).
[Prior Art Literature]
[Patent Documents]
[Patent Document 1] JP 2019-032606 A [Summary of the Invention]
[Problem to be solved by the invention]
However, in conventional devices such as the device described in Patent Document 1, the operation is still complicated, and there is room for improvement in operability. The present invention has been made in view of such circumstances, and has an object to provide a technology for improving operability.
[Means for solving the problems]
(1) One aspect of this embodiment is a product sales data processing device (e.g., a POS terminal 20, a mobile terminal 60) that registers products, and includes a registration means for registering products to be purchased, a display means for displaying a product list of products registered by the registration means, and a tax rate operation means for accepting a tax rate operation to determine a tax rate to be applied to a multi-tax rate product having multiple applicable tax rates set, wherein the tax rate operation means accepts the tax rate operation individually for each of the multiple-tax rate products which are purchased in multiple quantities.
According to the configuration (1), operability is improved. Specifically, operability regarding tax rates is improved.
(2) The product sales data processing device described in (1) is characterized in that the display means displays individual buttons that accept the tax rate operation for each of the multiple tax rate products that are purchased in multiple quantities, and the tax rate operation means accepts the tax rate operation for each of the multiple tax rate products that are purchased in multiple quantities via the individual buttons (e.g., selection buttons BT30-1, BT30-2, BT30-3 in Figure 7).
According to the configuration of (2), the purchase quantity and operation can be intuitively understood, so that even a store clerk who is unfamiliar with the operation (such as a new employee) can operate it easily.
(3) The product sales data processing device described in (1) or (2) is characterized in that the tax rate manipulation means accepts the tax rate manipulation for each of the multiple tax rate products, which have multiple purchase quantities, before the multiple tax rate products are displayed in the product list.
According to the configuration (3), the operation can be performed reliably at the timing of registration.
(4) A product sales data processing device described in any of (1) to (3), characterized in that the tax rate manipulation means accepts the tax rate manipulation individually for each of the multiple tax rate products displayed in the product list and having multiple purchase quantities.
According to the configuration of (4), even after registration, the user can perform appropriate operations as necessary.
(5) A product sales data processing device as described in (4), comprising a tax rate declaration means for declaring a tax rate change, and a product designation means for designating a product from the product list, wherein the tax rate operation means accepts the tax rate operation for each of the multiple tax rate products based on the product designation means designating a multiple tax rate product with multiple purchase quantities from the product list after the tax rate change has been declared by the tax rate declaration means, or based on the tax rate declaration means declaring a tax rate change after the product designation means designates a multiple tax rate product with multiple purchase quantities from the product list.
According to the configuration of (5), the tax rate can be easily manipulated even when other operations are being performed.
(6) A product sales data processing device as described in any of (1) to (5), further comprising a registration completion means (e.g., checkout button BT604 in FIG. 15 (B)) for accepting a registration completion operation to complete the registration of a product by the registration means, wherein the tax rate operation means, when the multiple tax rate product is included among the registered products, displays a multiple tax rate product list (e.g., a list displayed in the multiple tax rate product display area HR03 in FIG. 16) in which the multiple tax rate products are extracted from the product list based on the registration completion operation, and the tax rate operation means accepts the tax rate operation individually for each of the multiple tax rate products displayed in the multiple tax rate product list and having a multiple purchase quantity.
According to the configuration of (6), after completing registration, it is possible to easily check whether or not tax rate manipulation is required for products with multiple tax rates, and to manipulate the tax rates as necessary.
(7) A product sales data processing device as described in (6), further comprising a product designation means for designating a product from the multiple tax rate product list, wherein the tax rate operation means accepts the tax rate operation for each of the multiple tax rate products based on the product designation means designating a multiple-tax rate product from the multiple tax rate product list in which multiple purchases are made.
According to the configuration of (7), it is possible to easily specify products with multiple tax rates and easily operate the tax rates.
(8) The product sales data processing device described in (2) is characterized in that the display means displays a bulk button that accepts the tax rate operation all at once for the multiple tax rate products which are purchased in multiple quantities, and the tax rate operation means accepts the tax rate operation all at once for the multiple tax rate products which are purchased in multiple quantities via the bulk button.
According to the configuration of (8), tax rates can be easily manipulated to make the tax rate the same for all.
(9) A program that causes a computer to function as a product sales data processing device that registers products, the program causing the computer to function as a registration means for registering products to be purchased, a display means for displaying a product list of products registered by the registration means, and a tax rate operation means for accepting a tax rate operation to determine a tax rate to be applied to a multi-tax rate product having multiple applicable tax rates set, the tax rate operation means accepting the tax rate operation individually for each of the multi-tax rate products which are purchased in multiple quantities.
According to the configuration (9), like (1), the operability regarding tax rates is improved.
(10) A cloud server that controls the operation of a product sales data processing device having a product registration unit, a display unit, and an operation reception unit, comprising: a display control means that causes a product list of products registered by the product registration unit to be displayed on the display unit; and a tax rate operation reception control means that controls the acceptance of tax rate operations to determine a tax rate to be applied to a multi-tax rate product having multiple applicable tax rates set, wherein the tax rate operation reception control means controls the acceptance of the tax rate operations individually for the multi-tax rate products which have multiple purchases.
According to the configuration (10), similarly to (1), the operability regarding the tax rate is improved.

In addition, a program for implementing the functions of each device described above (POS terminal 20, settlement device 40, mobile terminal 60, etc.) may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to process each device. Here, "reading a program recorded on a recording medium into a computer system and executing it" includes installing the program into a computer system. The "computer system" here includes hardware such as an OS and peripheral devices. In addition, the "computer system" may include multiple computer devices connected via a network including the Internet, WAN, LAN, dedicated lines, and other communication lines. In addition, the "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into a computer system. In this way, the recording medium storing the program may be a non-transient recording medium such as a CD-ROM. In addition, the recording medium also includes a recording medium provided inside or outside the computer that can be accessed from a distribution server in order to distribute the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program in a format executable by the terminal device. In other words, the format in which the program is stored on the distribution server does not matter as long as the program can be downloaded from the distribution server and installed in a form that can be executed on the terminal device. The program may be divided into multiple parts, each of which may be downloaded at a different time and then combined on the terminal device, or each of the divided programs may be distributed by a different distribution server. Furthermore, the term "computer-readable recording medium" includes a storage medium that holds a program for a certain period of time, such as a volatile memory (RAM) inside a computer system that becomes a server or client when a program is transmitted over a network. The program may also be a program that realizes part of the above-mentioned functions. Furthermore, the program may be a so-called difference file (difference program) that can realize the above-mentioned functions in combination with a program already stored in the computer system.

20 POS terminal, 40 settlement device, 60 mobile terminal, 201 CPU, 202 ROM, 203 RAM, 204 scanner unit, 205 clerk display unit, 206 customer display unit, 207 hard disk, 208 key operation unit, 209 card payment unit, 210 printing unit, 211 audio output unit, 212 communication unit, 213 drawer

Claims (7)

A product sales data processing device for registering products,
A registration means for registering products to be purchased;
a display means for displaying a product list of the products registered by the registration means;
A tax rate operation means for accepting a tax rate operation for determining a tax rate to be applied to a multi-tax rate product for which a plurality of applicable tax rates are set;
Equipped with
The tax rate manipulation means is
A product sales data processing device that accepts the tax rate operation individually for each of the multiple tax rate products that are purchased in multiple quantities. The display means includes:
displaying individual buttons for accepting the tax rate operation for each of the multiple tax rate products having a plurality of purchases;
The tax rate manipulation means is
2. The product sales data processing device according to claim 1, wherein said tax rate operation is accepted via said individual button for each of said multi-tax rate products of which a plurality of purchases are made. The tax rate manipulation means is
3. The product sales data processing device according to claim 1, further comprising: before the multiple tax rate products, each of which is purchased in a plurality of quantities, are displayed in the product list, the tax rate operation is accepted for each of the multiple tax rate products. The tax rate manipulation means is
4. The product sales data processing device according to claim 1, wherein the tax rate manipulation is accepted individually for each of the multiple tax rate products displayed in the product list and having a plurality of purchase quantities. a registration completion means for accepting a registration completion operation for completing the registration of the product by the registration means,
The tax rate manipulation means is
When the multiple tax rate product is included in the registered products, a multiple tax rate product list is displayed in which the multiple tax rate products are extracted from the product list based on the registration completion operation;
The tax rate manipulation means is
5. The product sales data processing device according to claim 1, wherein the tax rate operation is accepted individually for each of the multiple tax rate products displayed in the multiple tax rate product list and having a plurality of purchases. A program that causes a computer to function as a product sales data processing device that registers products,
The computer,
A registration means for registering products to be purchased;
a display means for displaying a product list of the products registered by the registration means;
A tax rate operation means for accepting a tax rate operation for determining a tax rate to be applied to a multi-tax rate product for which a plurality of applicable tax rates are set;
and make it work.
The tax rate manipulation means is
A program that accepts the tax rate operation individually for each of the multiple tax rate products purchased in multiple quantities. A cloud server that controls an operation of a product sales data processing device having a product registration unit, a display unit, and an operation reception unit,
a display control means for causing the display unit to display a product list of the products registered by the product registration unit;
A tax rate operation acceptance control means for controlling the acceptance of a tax rate operation for determining a tax rate to be applied to a multi-tax rate product in which multiple applicable tax rates are set;
Equipped with
The tax rate manipulation acceptance control means
A cloud server characterized by performing control so as to accept the tax rate manipulation individually for each of the multiple tax rate products which are purchased in multiple quantities.

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