JP2015052926A - Reverse auction processing device and control system thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reverse auction processing device that prevents a bid price from becoming hard to be lowered and can suppress a sale commodity in a poor condition less than that of the commodity intended by an exhibitor from making a successful bid.SOLUTION: A reverse auction processing device is configured by including: browsing person determination means for receiving a browsing request from a terminal through a communication network, and determining whether the browsing person is either an exhibitor or a bidder; bid list generation means for generating a list of bids comprising a bid price for every sale commodity on the basis of the browsing request; and bid screen generation means for generating the bid screen including the list of bids on the basis of determination results of the browsing person. The bid screen generation means reads the commodity condition from bid information storage means and generates the bid screen, if the browsing person is the exhibitor, and generates the bid screen without reading the commodity condition from the bid information storage means except the sale commodity with the bid price specified by the bidder himself/herself, if the browsing person is the bidder.

Description

  The present invention relates to a reverse auction processing device and a control program therefor, and more specifically, a terminal device of a bidder who sells a product and a terminal device of an exhibitor who purchases a product from a bidder are connected via a communication network. The present invention relates to improvement of a reverse auction processing apparatus.

  A reverse auction involves the participation of two or more bidders who sell products and sellers who purchase products from bidders, and provides each bidder with the purchase price of the product for purchase specified by the seller. This is a commercial transaction in which each bidder designates the bid price of a product for sale up to the purchase price. The reverse auction processing device is a bid management device for electronically carrying out such a commercial transaction. Two or more terminal devices used by each bidder and a terminal device used by an exhibitor are communication networks such as the Internet. (For example, Patent Document 1). The bid price designated by each bidder is provided to the exhibitor and also to other bidders participating in the reverse auction, and the bidder is prompted to lower the bid price.

  According to the bidding system as described above, the exhibitor can easily search for rare products that are rarely on the market, reduce the cost of product procurement, and easily cultivate new suppliers. In addition, the bidder can sell products and inventory that have been manufactured and are difficult to obtain with a new product, so that the operating cost can be reduced and new customers can be easily acquired.

  However, in the conventional bidding system, even though sales products in various states are dealt with, the seller determines whether to make a successful bid by looking at the bid price and which sales product to make a successful bid. Had to do. For this reason, there has been a problem that an exhibitor may make a successful bid for a sale item that is in a poorer state than intended.

JP 2008-3772 A

  Therefore, it is conceivable that the product state of the sales product is disclosed on the network as bid information so that the seller can select the sales product after confirming the product state. However, if the merchandise state of the product for sale is disclosed to other bidders, there is a problem that competition between bidders is hindered and it is difficult to lower the bid price.

  The present invention has been made in view of the above circumstances, and it is possible to make a successful bid for a sale product that is in a state that is not in a better state than the one intended by the exhibitor while preventing the bid price from becoming difficult to fall. An object of the present invention is to provide a reverse auction processing device that can suppress the occurrence.

  Another object of the present invention is to provide a control program that allows a computer to function as the above-described reverse auction processing apparatus.

  In the reverse auction processing device according to the first aspect of the present invention, two or more terminal devices respectively used by two or more bidders who sell products and a terminal device used by an exhibitor who purchases products from a bidder form a communication network. A reverse auction processing device that connects to each other and provides each bidder with the purchase price specified by the seller, and provides the seller with the bid price specified by each bidder. Purchase information storage means for holding purchase information including the purchase price, and two or more bid information including the bid price of the sale product specified by the bidder and the product status of the sale product, and held in association with the purchase information Bidding information storage means, and a browser discriminating means for accepting a browsing request from the terminal device via the communication network and discriminating whether the browsing person is an exhibitor or a bidder, Based on the browsing request in which the purchase target product is specified, the bid list generating means for generating a bid list consisting of the bid price for each sale product and the bid based on the determination result of the viewer determining means A bid screen generating means for generating a bid screen including a list. The bid screen generation means reads the product state from the bid information storage means when the viewer is an exhibitor, generates the bid screen, and when the viewer is a bidder, the bid screen The bid screen is generated without reading the product state from the bid information storage means except for the sales product for which the bid price is specified by the user himself / herself.

  According to such a configuration, the exhibitor and the bidder can check the bid price of the sales product presented by each bidder by browsing the bid screen including the bid list. In addition, two or more pieces of bid information including the bid price and the product status of the product for sale are stored in association with the purchase information, and if there is a browsing request from the seller, the product status is read and a bid screen is generated. Can confirm whether or not to make a successful bid after confirming the product state of the sold product, or which of the sold products to make a successful bid for. In addition, since the bid screen is generated without reading the product status if the browsing request is from the bidder, the bidder may check the product status of the sales product for which the bid price is specified by another bidder. Can not. For this reason, competition between bidders is not hindered, and it is possible to prevent the bid price from becoming difficult to decrease.

  The reverse auction processing device according to the second aspect of the present invention is configured so that, in addition to the above-described configuration, any sale in the bid list is performed based on the browsing request from an exhibitor in which the sale product is specified from the bid list. Product selection means for selecting a product is provided, and the bid screen generation means is configured to generate a bid screen including the product status of the sales product based on a selection result of the product selection means. According to such a configuration, the exhibitor can browse the product state of the sales product by designating the sales product from the bid list.

  In the reverse auction processing device according to the third aspect of the present invention, in addition to the above configuration, the bid screen generation means is configured to sell the commodity for sale in which the bid price is designated by the bidder itself based on the browsing request from the bidder. A bid screen including the product state is generated. According to such a configuration, the bidder can view the merchandise state of the sales merchandise for which the bid price is designated by the bidder himself.

  In the reverse auction processing device according to the fourth aspect of the present invention, in addition to the above configuration, the bid screen generating means includes an operation object for displaying the product status based on the browsing request from the seller in the bid list. The seller bidding screen is generated so as to be arranged in association with the sales items. According to such a configuration, the exhibitor can view the product status of any sale product in the bid list by operating the operation object on the seller bidding screen.

  In a control program according to a fifth aspect of the present invention, two or more terminal devices used by two or more bidders selling products and a terminal device used by an exhibitor who purchases products from a bidder are connected via a communication network. A control program for a connected reverse auction processing apparatus, which provides each bidder with a purchase price designated by an exhibitor, and provides a bid price designated by each bidder to an exhibitor. 2 or more including purchase information storage procedure for storing purchase information including the purchase price of the purchase target product designated by the seller in the storage device, the bid price of the sale product designated by the bidder, and the product status of the sale product The bid information storage procedure for storing the bid information in the storage device in association with the purchase information, and the browsing request is received from the terminal device via the communication network. A bidding list for generating a bidding list composed of the bidding price for each of the sales products based on a browsing determination procedure for determining whether the purchaser is a bidder or a bidder and the browsing request in which the purchase target product is specified A generation procedure and a bid screen generation procedure for generating a bid screen including the bid list based on the discrimination result of the viewer. In the bid screen generation procedure, when the viewer is an exhibitor, the product state is read from a storage device to generate the bid screen, and when the viewer is a bidder, the bidder himself / herself The bid screen is generated without reading the product state from the storage device, except for the sales product for which the bid price is specified.

  In the reverse auction processing device according to the present invention, it is possible to prevent a situation in which a bid for a sale item whose condition is worse than that intended by the exhibitor is prevented while preventing the bid price from being easily lowered. Can do. Further, according to the present invention, it is possible to provide a control program that allows a computer to function as the above-described reverse auction processing device.

1 is a system diagram showing a configuration example of a bidding system 1 including a reverse auction processing device 10 according to an embodiment of the present invention. It is the block diagram which showed the structural example of the reverse auction processing apparatus 10 of FIG. FIG. 3 is a diagram showing an example of the operation of the reverse auction processing device 10 of FIG. 2, and shows a seller bidding screen 20 displayed on the seller terminal 3. FIG. 3 is a diagram illustrating an example of the operation of the reverse auction processing device 10 of FIG. 2, and shows a seller bidding screen 20 including a product state 63 of a sold product. FIG. 3 is a diagram showing an example of the operation of the reverse auction processing device 10 of FIG. 2, and shows a bidder bid screen 40 displayed on the bidder terminal 2. FIG. 3 is a diagram illustrating an example of the operation of the reverse auction processing device 10 of FIG. 2, in which a bidder screen 40 for bidders including a product state 63 of sales products is shown. It is the flowchart which showed an example of operation | movement of the reverse auction processing apparatus 10 of FIG. 2, and the process sequence at the time of receiving a browsing request from a terminal device is shown.

<Bid system 1>
FIG. 1 is a system diagram showing a configuration example of a bid system 1 including a reverse auction processing device 10 according to an embodiment of the present invention. In this bidding system 1, two or more bidder terminals 2 used by two or more bidders, an exhibitor terminal 3 used by an exhibitor, and a bidder terminal 2 and an exhibitor terminal 3 are connected via a communication network 4. And a reverse auction processing device 10 connected to each other.

  A bidder is a seller who participates in a reverse auction and sells goods through the reverse auction. An exhibitor is a buyer who participates in a reverse auction and purchases a product from a bidder via the reverse auction. The products here include articles such as home appliances and sports equipment, and services (services) such as transportation work and agency work.

  The bidder terminal 2 is a terminal device that includes an operation input device that receives an operation by a bidder and a display device that displays various information on a screen. The exhibitor terminal 3 is a terminal device that includes an operation input device that receives operations by the exhibitor and a display device that displays various information on a screen. Such terminal devices include stationary information processing terminals such as personal computers and portable information processing terminals such as mobile phones and tablet terminals.

  The reverse auction processing device 10 is an electronic commerce management device that manages reverse auctions via the communication network 4. For example, the reverse auction processing device 10 can be realized by operating a computer based on a control program. Such a control program is provided by being recorded on a computer-readable recording medium such as a CD-ROM, or is provided via the communication network 4. The communication network 4 includes the Internet, a LAN (local area network), and the like.

  This reverse auction processing device 10 provides each bidder with the purchase price of the purchase target product designated by the seller, while providing the seller with the bid price of the sales product designated by each bidder. In other words, the bid price designated by each bidder is provided to the exhibitor and also to other bidders participating in the reverse auction, thereby prompting the bidder to lower the bid price. Here, it is assumed that only auction members who have registered in advance can participate in the reverse auction as bidders or exhibitors.

  The exhibitor operates the exhibitor terminal 3 to specify the purchase target product and the purchase price thereof, and requests the reverse auction processing device 10 to exhibit in the reverse auction. The reverse auction processing device 10 receives an exhibition request from an exhibitor, issues identification information for identifying an auction, for example, an auction number, and the purchase price, product category, product name, etc. of the purchase target product are used as purchase information. Retained.

  The bidder operates the bidder terminal 2, designates the auction number, the sales product and the bid price, requests the reverse auction processing device 10 to bid for the reverse auction, and transmits the product status of the sales product. To do. The merchandise status includes a text message indicating the status of the merchandise sold and a merchandise image in which the merchandise is photographed. The reverse auction processing device 10 receives a bid request from a bidder, and holds bid information including a bid price and a merchandise state of sales merchandise in association with purchase information.

<Reverse Auction Processing Device 10>
FIG. 2 is a block diagram showing a configuration example of the reverse auction processing device 10 of FIG. The reverse auction processing device 10 includes a login unit 11, a database 12, a bid list generation unit 13, a product selection unit 14, a product detail generation unit 15, and a bid screen generation unit 16.

  The database 12 is a storage device that holds purchase information 5 including a purchase price of a product to be purchased, and two or more bid information 6 including a bid price 61, a bidder ID 62, and a product state 63 of a sales product. The purchase information 5 and the bid information 6 are linked to each other by an auction number, and each bid information 6 is held in association with the common purchase information 5. The bidder ID 62 is identification information for identifying a bidder.

  The login unit 11 is connected to the communication network 4 and performs an authentication process as to whether or not the viewer is an auction member when a bid screen browsing request is input. The login unit 11 receives a browsing request from the bidder terminal 2 or the exhibitor terminal 3 via the communication network 4, determines whether the viewer is an exhibitor or a bidder, and the determination result of the viewer Is output to the product selection unit 14.

  The bid list generation unit 13 generates a bid list including bid prices for each sale product based on the browsing request in which the purchase target product is specified, and outputs the bid list to the bid screen generation unit 16. The bid list is created by specifying the purchase information 5 based on the auction number included in the browsing request and reading the bid information 6 associated with the purchase information 5 from the database 12.

  The bidding screen generation unit 16 generates a bidding screen including a bidding list on the basis of the viewer's discrimination result by the login unit 11 and outputs the bidding screen to the bidder terminal 2 or the exhibitor terminal 3 that is the transmission source of the browsing request. Specifically, when the viewer is an exhibitor, the product state 63 is read from the database 12 and a bid screen is generated. On the other hand, when the viewer is a bidder, a bid screen is generated without reading the product state 63 from the database 12 except for the sales products for which the bid price 61 is designated by the bidder himself / herself.

  The product selection unit 14 selects one of the sales products in the bid list as a product to be browsed based on a browsing request from an exhibitor whose sales product is designated from the bid list. Specifically, the browsing target product is selected by specifying the bid information 6 based on the bidder ID included in the browsing request.

  In addition, if there is a browsing request from the bidder, the product selection unit 14 displays the bid information 6 related to the sales product for which the bid price 61 is designated by the bidder based on the bidder ID included in the browsing request. The product to be browsed is selected. The product detail generation unit 15 reads the product state 63 of the browse target product from the database 12 and outputs the product state 63 to the bid screen generation unit 16 as product detailed information.

  Based on the browsing request, the bid screen generation unit 16 generates a bid screen including product detailed information, that is, a bid screen including the product state 63 of the sales product selected as the browsing target product by the product selection unit 14. For example, in the case of a browsing request from an exhibitor, an exhibitor bidding screen is generated in which an operation object for displaying the merchandise state 63 is arranged in association with the sales merchandise in the bid list.

<Tender screen 20 for exhibitors>
FIG. 3 is a diagram showing an example of the operation of the reverse auction processing device 10 of FIG. 2, and shows the seller bidding screen 20 displayed on the seller terminal 3. The seller bidding screen 20 is a bidding screen for the seller to confirm the purchase information 5 specified by the seller, the current bid price 61, etc., and downloads screen data from the reverse auction processing device 10. To be displayed.

  The seller bidding screen 20 includes a My Page button 21, a logout button 22, a product category display column 23, a product title display column 24, a purchase information display column 25, a purchase detailed information display column 26, a bid list display column 27, and an exhibition. A content display field 28 is provided.

  The my page button 21 is an operation object for confirming registration information or displaying a my page screen for changing registration information. The logout button 22 is an operation object for logging out.

  The product category display field 23 displays the product category to which the purchase target product belongs. The product categories are displayed hierarchically from the upper category to the lower category. For example, when the purchase target product is a plasma television, a first hierarchy category “home appliance”, a second hierarchy category “TV”, and a third hierarchy category “plasma television” are displayed. In the product title display column 24, the product name, model number, manufacturer, and the like of the product to be purchased are displayed. The exhibitor designates a product category, a product name, a model number, a manufacturer, and the like to which the purchase target product belongs.

  In the purchase information display field 25 and the purchase detailed information display field 26, purchase information 5 designated by the exhibitor is displayed. In this purchase information display column 25, the purchase price, the remaining days, and the number of bids are displayed. The exhibitor designates the upper limit price that can be purchased as the purchase price. The remaining days are the number of days from the present to the end of bidding. In this example, the purchase price “300,000 yen”, the remaining days “3 days”, and the number of bids “5” are displayed.

  The purchase detail information display field 26 displays the handling quantity, start date / time, end date / time, purchase price, auction number, presence / absence of early termination, and presence / absence of bid restrictions. The handling quantity is the purchase quantity of the product to be purchased. The start date and time is the date and time when the auction is started, and the end date and time is a scheduled date and time when the auction is ended. When the end date / time arrives, the acceptance of the bid automatically ends.

  By designating the early end, the exhibitor can end the acceptance of the bid before the end date and time arrives. By specifying a bid limit, bidders can be narrowed down according to a predetermined evaluation standard.

  In the bid list display column 27, a bid list including a bid price 61 for each sale product, a proposal date and time, and a bidder ID 62 is displayed, and the current bid price 61 can be confirmed for two or more sale products. The bid price 61 is the sales price of the sales product presented by the bidder. The proposal date and time is the date and time when the bid price 61 is presented.

  A confirmation button 7 is arranged for each sale item in the bid list. This confirmation button 7 is an operation object for displaying the merchandise state 63 of the sale merchandise, and is arranged in association with the sale merchandise in the bid list. By operating the confirmation button 7 in the bid list display field 27, the exhibitor can display and browse the product state 63 for any sale product in the bid list. For example, the confirmation button 7 can be selected by moving the mouse cursor 8 and clicking.

  The exhibition contents display field 28 displays the exhibition contents registered in advance by the exhibitor. The contents of the exhibition include attributes of purchase target products, purchase conditions, and product status. In the attribute column of the purchase target product, the product name, model number, manufacturer, and the like are displayed. Further, in the purchase condition column, the condition for purchasing the product presented by the exhibitor is displayed. In the product status column, the status of the purchase target product presented by the exhibitor is displayed. For example, “new”, “used”, “whether new or used” can be selected.

  FIG. 4 is a diagram showing an example of the operation of the reverse auction processing device 10 of FIG. 2, and shows the seller bidding screen 20 including the merchandise state 63 of the sale merchandise. The seller bidding screen 20 is provided with a bid information display field 31, a bid price display field 32, and a product image display field 33. The product state 63 of the sales product for which the bid price 61 is presented by the bidder “bbbb”. Is displayed.

  In the bid information display field 31, bid information 6 designated by the bidder is displayed. Specifically, an auction number, a proposal date and time, a region name of a shipping source, a shipping fee type, a shipping method, a transfer fee type, a delivery time, a product state, presence / absence of a manufacturer guarantee, and a comment are displayed. In the product status column and the comment column, a text message indicating the status of the sales product is displayed.

  For example, the proposal date and time “May 1, 2013 23:50”, the shipping area name “Hokkaido”, the postage type “by postage”, the transfer fee type “exhibitor burden”, the product state “new unused”, The comment "It was stored unused after purchase of a new item" is displayed.

  In the bid price display field 32, the bid price presented by the bidder is displayed. In this example, a bid price “300,000 yen” is displayed. In the product image display field 33, a product image 33a is displayed. For example, a photographed image obtained by photographing a sale product is displayed as a product image 33a. The product image 33a includes a still image and a moving image.

  The exhibitor can confirm the state of the sale product by the text message and the product image 33a by browsing such a bid screen 20 for the seller. Moreover, the communication load at the time of downloading screen data to the exhibitor terminal 3 is reduced by generating the exhibitor bid screen 20 including the product image 33a of the sale product only when the confirmation button 7 is operated. be able to. In this bidding system 1, when the exhibitor determines the successful bidder from among the bidders, the transaction ends.

<Bidder bid screen 40>
FIG. 5 is a diagram showing an example of the operation of the reverse auction processing device 10 of FIG. 2, and shows a bidder screen 40 for bidders displayed on the bidder terminal 2. This bid screen 40 for bidders is a bid screen for confirming the purchase information 5 designated by the bidder and the current bid price 61 etc., and is displayed by downloading screen data from the reverse auction processing device 10. The

  In the bid screen 40 for bidders, like the bid screen 20 for exhibitors, a My Page button 41, a logout button 42, a product category display column 43, a product title display column 44, a purchase information display column 45, and a purchase detailed information display. A column 46, a bid list display column 47, and an exhibition content display column 48 are provided.

  The My Page button 41, the logout button 42, the product category display field 43, the product title display field 44, the purchase details information display field 46, and the exhibition content display field 48 are all the same as the objects in the seller bidding screen 20. Consists of configuration.

  In the bid screen 40 for bidders, a bid button 9 is provided in the purchase information display field 45. The bid button 9 is an operation object for participating in a bid. The bid list display field 47 displays a bid list including a bid price 61, a proposal date and time, and a bidder ID 62 for each sale product, but a confirmation button 7 for displaying the product state 63 is not arranged. .

  By operating the bid button 9 in the purchase information display field 45, the bidder can register the bid price 61 and the product state 63 of the sold product and participate in the bid. In addition, the bidder can confirm the registered bid information 6 or change the bid information 6 by operating the my page button 41. For example, the bid button 9 and the my page button 41 can be selected by moving the mouse cursor 8 and clicking.

  FIG. 6 is a diagram illustrating an example of the operation of the reverse auction processing device 10 of FIG. 2, and shows a bidder screen 40 for bidders including a product state 63 of sales products. The bidder bidding screen 40 is provided with a bid information display field 51, a bid price display field 52, and a product image display field 53. The product state 63 of the sales product for which the bid price 61 is presented by the bidder “ffff”. Is displayed.

  The bid information display column 51, the bid price display column 52, and the product image display column 53 have the same configuration as the bid information display column 31, the bid price display column 32, and the product image display column 33, respectively. For example, the proposal date and time “May 3, 2013 12:34”, shipping area name “Osaka”, postage type “shipping included”, transfer fee type “successful bidder burden”, product status “goods (used goods) ) ”Is displayed. In the bid price display field 52, the bid price “150,000 yen” is displayed.

  By viewing such a bidder bid screen 40, the bidder can confirm the state of the sales product on which the bid price 61 is presented by the bidder himself / herself using the text message and the product image 53a. In addition, the bidder can register a maximum of three product images 53a for the same sales product.

  Steps S101 to S113 in FIG. 7 are flowcharts illustrating an example of the operation of the reverse auction processing device 10 in FIG. 2, and a processing procedure when a browsing request is received from the bidder terminal 2 or the exhibitor terminal 3 is shown. ing. First, the login unit 11 performs user authentication based on the received browsing request, and if the browsing request is from an auction member, determines whether the viewer is a bidder or an exhibitor (step S101, S102).

  Next, the bid list generation unit 13 generates a bid list, and the bid screen generation unit 16 selects the bid screen 20 for the seller including the bid list and the purchase information 5 or the bidder for the bidder according to the discrimination result of the viewer. A bid screen 40 is generated (steps S103 to S105, S110).

  When the viewer is an exhibitor, the product selection unit 14 selects one of the sales products in the bid list as the browse target product based on the operation of the confirmation button 7 on the seller bidding screen 20 (step). S106, S107). The product detail generation unit 15 reads the product state 63 of the product to be browsed from the database 12, and the bid screen generation unit 16 generates the seller bidding screen 20 including the product state 63 (step S108). The processing procedure from step S106 to step S108 is repeated until the logout button 22 is operated. When the logout button 22 is operated, this processing ends (step S109).

  On the other hand, when the viewer is a bidder, a registration screen for registering the bid information 6 including the bid price 61 and the product state 63 based on the operation of the bid button 9 on the bid screen 40 for bidders is displayed. It is generated (steps S111 and S112). The processing procedure of step S111 and step S112 is repeated until the logout button 42 is operated, and when the logout button 42 is operated, this processing ends (step S113).

  According to the present embodiment, the exhibitor and the bidder can check the bid price 61 of the sales product presented by each bidder by browsing the bid screen including the bid list. In addition, two or more pieces of bid information 6 including the bid price 61 and the product state 63 of the product for sale are stored in association with the purchase information 5, and if there is a viewing request from the exhibitor, the product state 63 is read and a bid screen is generated. Therefore, the exhibitor can confirm whether or not to make a successful bid after confirming the product state 63 of the sales product, or which of the sales products to make a successful bid for.

  Furthermore, if it is a browsing request from a bidder, a bid screen is generated without reading out the product state 63, so the bidder confirms the product state 63 of the sales product for which the bid price 61 is specified by another bidder. Can not do it. For this reason, competition between bidders is not hindered, and it is possible to prevent the bid price 61 from becoming difficult to decrease.

DESCRIPTION OF SYMBOLS 1 Bid system 2 Bidder terminal 3 Exhibitor terminal 4 Communication network 5 Purchase information, 6 Bid information, 10 Reverse auction processing device, 11 Login part 12 Database, 13 Bid list generation part, 14 Goods selection part 15 Goods details Generating unit, 16 Bid screen generating unit, 20 Bid screen for exhibitor 40 Bid screen for bidder

Claims (5)

Two or more terminal devices used by two or more bidders who sell products and a terminal device used by sellers who purchase products from bidders are connected via a communication network, and the purchase price specified by the seller In a reverse auction processing device that provides each bidder with a bid price designated by each bidder,
Purchase information storage means for holding purchase information including the purchase price of the purchase target product designated by the seller;
A bid information storage means for holding two or more bid information including the bid price of the sales product designated by the bidder and the product status of the sales product in association with the purchase information;
A browser discriminating means for accepting a browsing request from the terminal device via the communication network, and discriminating whether the viewer is an exhibitor or a bidder;
A bid list generating means for generating a bid list consisting of the bid price for each of the sales products based on the browsing request in which the purchase target product is specified;
A bid screen generating means for generating a bid screen including the bid list based on the determination result of the viewer determining means,
The bid screen generation means reads the product state from the bid information storage means when the viewer is an exhibitor, generates the bid screen, and when the viewer is a bidder, the bid screen A reverse auction processing device, wherein the bid screen is generated without reading the product state from the bid information storage means, except for the sales product for which the bid price is designated by the user himself / herself. Product selection means for selecting any of the sales products in the bid list based on the browsing request from the seller in which the sales product is specified from the bid list,
2. The reverse auction processing device according to claim 1, wherein the bidding screen generating unit generates a bidding screen including the product state of the sold product based on a selection result of the product selecting unit.   The bidding screen generating means generates a bidding screen including the product state of the sales product for which the bid price is designated by the bidder based on the browsing request from the bidder. Item 3. The reverse auction processing device according to Item 2.   The bidding screen generating means generates an exhibitor bidding screen in which operation objects for displaying the product state are arranged in association with the sales products in the bidding list based on the browsing request from the seller. The reverse auction processing apparatus according to any one of claims 1 to 3, wherein Control for a reverse auction processing device in which two or more terminal devices used by two or more bidders selling products and a terminal device used by an exhibitor who purchases products from a bidder are connected via a communication network. A program,
In a control program for providing the bid price specified by the seller to each bidder and providing the bid price specified by each bidder to the seller,
A purchase information storage procedure for storing purchase information including a purchase price of a purchase target product designated by an exhibitor in a storage device;
A bid information storage procedure for storing in the storage device two or more bid information including the bid price of the sales product specified by the bidder and the product status of the sales product in association with the purchase information;
A viewer determination procedure for receiving a browsing request from the terminal device via the communication network and determining whether the viewer is an exhibitor or a bidder;
A bid list generating procedure for generating a bid list including the bid price for each of the sales products based on the browsing request in which the purchase target product is specified;
Based on the determination result of the viewer, the computer executes a bid screen generation procedure for generating a bid screen including the bid list,
In the bid screen generation procedure, when the viewer is an exhibitor, the product state is read from a storage device to generate the bid screen, and when the viewer is a bidder, the bidder himself / herself A control program for a reverse auction processing device, wherein the bidding screen is generated without reading the product state from a storage device, except for the sales product for which the bid price is specified.

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