JP2004070434A - System for assisting sales and purchase of housing material to be operated by use of internet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for assisting the sales and purchase of housing materials to be operated by use of the Internet, making it possible to construct a market that can be disposed of if inventory adjustment becomes necessary, without letting business partners and third parties know the fact. <P>SOLUTION: The system provides assistance using an auction method given anonymity, by mediating the buying and selling of housing materials between subscribed users. The system has a member database, an entry information database for accumulating entry information, and a purchase desire information database for accumulating purchase desire information, and communicates with external terminals B, C operated by users via the Internet, so as to function as Web servers A1, A2. At the closing date for tenders, entry information is collated with purchase desire information, and for an article for which there is a match, bidders, starting from the bidder who presented the highest bid price, are presented with the lowest contract price lower than the highest bid price, and articles entered by users who want to sell them are allocated, starting from the article which was the first to be accepted as an entry. Based on the allocation result, a report of the sales results is sent to the users who desire to sell the articles, and a report of the bid results is sent to the users who desire to purchase them. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing material sales / purchase support system that supports the purchase and sale of housing materials between registered users in an auction format with anonymity using the Internet.
[0002]
[Prior art]
Currently, the applicant of the present application operates a system (referred to as a nice advan) for receiving orders from dealers via the Internet for the primary wholesale of construction material products. This system is a product database that accumulates sales information such as manufacturer part numbers, product specifications, list prices, wholesale prices, stock quantities, and delivery dates for each of a wide variety of construction material products from many manufacturers in association with product ID numbers. And a member store database storing store information such as store name (company name), address, telephone number, FAX number, and e-mail address in association with the store ID number for each store registered as a member store. Is operated using a computer functioning as a Web server, and communicates with external terminals of affiliated dealers accessed via the Internet to obtain basic information such as specifications and prices of various purchased products desired by the dealers. Product information and its sales information such as inventory and delivery date are appropriately generated and provided on a Web page, and A series of complicated processes such as quotation reply of products to be made and order confirmation notification are automated using e-mail and FAX, etc., and labor saving between both the primary wholesaler and the dealer is reduced. ing.
[0003]
[Problems to be solved by the invention]
By the way, in the case of trading of housing construction material products, prices are low and the margins are extremely low for dealers, and many products are produced overseas. Vulnerable to risk. In addition, inventory risks, such as suddenly running out of inventory, are high because they are greatly affected by the housing starts in Japan. Therefore, in order to minimize such risks, it is necessary to sell and dispose of them at low cost.
[0004]
However, if you try to sell too cheaply in the event of excess inventory, you may not only destroy the market, but also in relation to distribution-related companies such as manufacturers, importers, and primary wholesalers. It was difficult to dispose of it at a low price because of the risk of disturbing the transaction.
[0005]
The present invention has been made in view of the above-described circumstances, and a purpose of the invention is to make it possible to reliably dispose of an inventory when it becomes necessary without being known to a business partner or a third party. It is an object of the present invention to provide a sales / purchase support system for housing materials operated using the Internet, which can build a simple market.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a sales / purchase support system for housing materials operated by a computer using the Internet has a configuration specified by the following items (1) to (5). It is characterized by.
[0007]
(1) A system that mediates the purchase and sale of housing materials between registered users and provides support in an anonymous auction format, in which a member database and users who wish to sell products are registered. An external terminal operated by the user, having an exhibition information database for storing the exhibition information of the purchased product and a purchase information database for storing the purchase information of the product registered by the user who wishes to purchase the product. It functions as a Web server by communicating with each other via the Internet.
[0008]
(2) The member database includes various information of contact notification destination means such as a member name, a location, a FAX number or an e-mail address in association with the member ID. The exhibition information database includes various information such as member ID, product name, product-specific specification information such as weight and size, sales quantity, minimum successful bid price, and reception date. The purchase desire information database includes various information such as a member ID, a product name, a purchase quantity, and a bid price.
[0009]
(3) The Web server responds to a request from an external terminal of a user who accesses the product exhibition registration Web page by designating the URL of the product exhibition registration web page, and the product registration screen for a product to be sold and a transmission button are attached. When the exhibit registration Web page is provided and the member ID and the information on the predetermined items relating to the desired product to be sold are received by operating the send button, the exhibit reception management number is automatically set. The information is provided and stored in an exhibition information database provided in an appropriate storage medium, and an acceptance confirmation notification is transmitted.
[0010]
(4) The Web server responds to a request from an external terminal of a user who accesses the product by specifying a URL of a product purchase registration web page, and is provided with a registration screen of a product to be purchased and a transmission button. When a purchase wish registration Web page of a product is provided, and the member ID input to the purchase wish registration screen on the purchase wish registration Web page and information on predetermined items regarding the purchase wish product are received by operating the transmission button, A receipt confirmation notification of the purchase request is transmitted and stored in a purchase request information database provided in an appropriate storage medium.
[0011]
(5) When the predetermined bid closing date has arrived, the Web server compares the exhibition information of the product stored in the exhibition information database with the purchase information of the product stored in the purchase information database, and matches the matched product. About, in order from the purchase requesting user who presented the higher bid price, the lowest bid price lower than the bid price is presented, and the products of the sales requesting user earlier in the exhibition acceptance date are sequentially assigned, Based on the allocation result, a sales result notification with a purchase order attached along with details of the sales quantity, sales price, and product delivery information is transmitted to the sales wishing user, while the purchase wishing user is Then, a bidding result notification accompanied by an invoice is transmitted together with the details of the sales quantity and the sales price.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of a housing material sales / purchase support system operated using the Internet according to the present invention will be described with reference to the accompanying drawings.
[0013]
FIG. 1 schematically shows a network configuration of a computer on which a sales / purchase support system for construction materials according to the present invention is operated. As shown in the figure, in this embodiment, a computer A that operates a sales / purchase support system includes a computer A1 that has a reception management function for a product to be sold and operates a Web server of a broker site, and A computer A2 having a reception management function and operating a Web server of a material outlet market site is connected to each other so as to be able to communicate with each other.
[0014]
The computer A1 that operates the broker site has an exhibition information database that stores the exhibition information of the products registered from the terminals B1 to Bn of the suppliers who are the users who want to sell the products, and a store that is registered as a member. And a member database of users such as a construction company are constructed in an appropriate storage medium, and connected to terminals B1 to Bn operated by the supplier via the Internet so as to be able to communicate with each other.
[0015]
The computer A2 that operates the material outlet market site includes a purchase request information database that stores purchase request information of products registered from buyer terminals C1 to Cn that are users who want to purchase products, Registered member databases such as dealers and contractors are constructed in an appropriate storage medium, and connected to terminals C1 to Cn operated by buyers via the Internet so as to be able to communicate with each other.
[0016]
The two computers A1 and A2 function as Web servers while utilizing information stored in the databases constructed respectively. That is, a Web page capable of mutually communicating various kinds of information can be generated and distributed using technologies such as HTML (Hypertext Markup Language), CGI (Common Gateway Interface), and SQL (Standard Query Language). I have.
[0017]
Then, the computer A1 responds to a request from the external terminals B1 to Bn of the supplier who has specified and accessed the URL of the product exhibition registration Web page via the Internet, Is provided, and when the member ID input on the exhibition registration screen on the product exhibition registration web page and information on predetermined items related to the product to be sold are received by operating the transmission button, A reception control number is automatically assigned and stored in an exhibition information database provided in an appropriate storage medium, and a reception confirmation notification is transmitted.
[0018]
In addition, the computer A2 is provided with a registration screen for a product to be purchased and a transmission button in response to a request from the external terminals C1 to Cn of the buyer who has accessed by specifying the URL of the product purchase registration web page. The registration request Web page of the purchased product is provided, and the member ID input to the registration screen of the purchased product on the purchase desired registration Web page and information on predetermined items related to the purchased product are received by operating the transmission button. Is stored in a purchase desire information database provided in an appropriate storage medium, and a purchase receipt acceptance confirmation notification is transmitted.
[0019]
In the following description, the term “Web server” includes not only a case in which a plurality of computers cooperate as in the present embodiment but also a case in which the Web server is constituted by a single computer. In addition, the external terminal operated by the user includes a personal computer, a mobile phone, and a mobile terminal such as a PDA (Personal Digital Assistant), which is equipped with an Internet Web browser and can browse Web pages. In the above description, the member database is provided for each of the computers A1 and A2. However, the member database may be provided for only one of the computers and shared.
[0020]
FIG. 2 shows a time-series exchange between a sales / purchase support system operated by a Web server of the computers A1 and A2 and external terminals B1 to Bn and C1 to Cn of a user such as a construction shop or a store. 3 is a flowchart schematically showing a simple processing flow (data flow) in steps (1) to (14).
[0021]
=== Steps (1) and (2) ===
Steps (1) and (2) are between the web server A1 of the material brokerage site and the supplier terminal of the user who wants to sell the product, and wish to purchase the product with the web server A2 of the material outlet market site. The steps of a member registration process that is appropriately performed with the buyer terminal of the user performing the registration will be described.
[0022]
First, from the processing on the supplier side, when the supplier terminal specifies and accesses the URL of the commodity exhibition registration Web page, the Web server A1 of the material brokerage site firstly registers the member ID number as shown in FIG. Then, a top page for entrance prompting input of a password and a password is transmitted to the supplier terminal B. Here, if the supplier has not registered as a member, he / she presses the “to new registration screen” button to request registration processing for a member application. Then, a member registration screen for new registration as shown in FIG. 3 is transmitted from the web server A1 of the material broker site to the supplier terminal B. Enter information such as company name, address, telephone number, representative, person in charge, person in charge mail address, etc. in the predetermined items on this member application screen, and press the "Send" button. The web server A1 of the human site returns a registration reception screen as shown in FIG. 4 to the supplier terminal B and automatically assigns a member ID number to associate various acquired information such as a member name, a location, and an e-mail address. The e-mail containing the member ID number and the password as shown in FIG.
[0023]
On the other hand, in the processing on the buyer side, in a similar manner, when the buyer specifies and accesses the URL of the purchase request registration Web page, the material outlet market site A2 firstly displays the member ID number and the password as shown in FIG. Is transmitted to the buyer's terminal C. Then, if the buyer has not registered as a member yet, he / she presses the “to new registration screen” button to request registration processing for the membership application. Then, a member application screen for new registration as shown in FIG. 3 is transmitted from the web server A2 of the material outlet site to the terminal C of the buyer. Enter information such as company name, address, telephone number, representative, person in charge, person in charge e-mail address, etc. in the predetermined items on this member application screen and press the "send" button. Then, the material outlet site Web server A2 returns a registration acceptance screen as shown in FIG. 4 to buyer terminal C, automatically assigns a member ID number, and associates various acquired information such as a member name, a location, and an e-mail address. An e-mail containing the member ID number and the password as shown in FIG. 5B is sent to the member database.
[0024]
=== Steps (3) to (4) ===
In step (3), when the supplier inputs the acquired ID number and password into the corresponding input window on the top page of the material brokerage site shown in FIG. 6 and presses the “entry” button, the entry request is made. In response, the web server of the material brokerage site provides the screen data of the product exhibition registration web page as shown in FIG. 7 in A1, and permits login to the sales / purchase support system. Then, the supplier inputs various information, such as the product name, quantity, shipping unit, and lowest available price (lowest successful bid price) of the product desired to be sold in predetermined items on the product exhibition registration screen, and presses the "Sell" button. By pressing, the product listing information reaches the web server A1 of the material brokerage site.
[0025]
In step (4), the web server A1 of the material brokerage site that has received the exhibition information of the commodity displays a confirmation screen of the exhibition contents on the terminal B of the supplier, for example, the received commodity exhibition information is displayed, and the exhibition commodity name is cedar. If the size of the plywood is 900 × 1800, the quantity is 1200, the shipping unit is 100, and the minimum sellable price is 500 yen, the data of the exhibition confirmation screen as shown in FIG. 8 is transmitted. The confirmation screen for the listing is accompanied by a "confirm" button and a "return to previous screen" button. If the contents of the product listing information are correct and no correction is necessary, the supplier presses the confirmation button. If there is a need for correction, such as when there is, press the "Return to previous screen" button. When the "return to previous screen" button is pressed, the merchandise exhibition registration screen data is transmitted and displayed again from the web server A1 of the material brokerage site to the supplier terminal B, and the above-described registration work is performed again.
[0026]
On the other hand, when the "confirm" button is pressed, the web server A1 of the material brokerage site automatically assigns an exhibition reception control number, and displays the exhibition information of the received merchandise on an appropriate storage medium. A reception confirmation notice with a reception number as shown in FIG. 9 is transmitted while being stored in the database.
[0027]
=== Steps (5) to (6) ===
In step (5), the buyer inputs the ID number and the password acquired in the corresponding input window on the top page of the material outlet market site shown in FIG. 10 and presses the "entry" button to answer the entry request. Then, the web server A2 of the material outlet market site provides a registration screen (hereinafter, referred to as a product bidding screen) of a purchase desired product on a product purchase desired registration Web page as shown in FIG. Permit to log in to the support system. Then, the buyer inputs various information such as the product name, size, quantity, purchase price (bid price) of the product desired to be sold in a predetermined item on the product bidding screen, and presses a “bid” button. Then, the bid information on the desired product to be purchased reaches the web server A2 of the material outlet market site.
[0028]
In step (6), the Web server A2 of the material outlet market site that has received the bid information of the desired product for purchase has a bid confirmation screen for the buyer's terminal C. For example, the received bid information indicates that the product name is cedar plywood. If the size is 900 × 1800, the quantity is 1,000, and the bid price is 700 yen, the data of the confirmation screen in which the bid closing date and the successful bid notification date are described in addition to the bid contents as shown in FIG. Send
[0029]
This bid content confirmation screen is accompanied by a “confirm” button and a “return to previous screen” button, and the buyer presses the “confirm” button if there is no error in the contents of the bid information and no correction is necessary, If a correction such as an error is required, press the "Return to previous screen" button. When the "return to previous screen" button is pressed, the product bidding screen data is transmitted again from the web server A2 of the material outlet market site to the buyer's terminal C and displayed, and the input operation is repeated.
[0030]
On the other hand, when the “confirm” button is pressed, the web server A2 of the material outlet market site automatically assigns the bid reception control number and the reception date data, and appropriately stores the received bid information of the desired purchase product. It is stored in the purchase desire information database provided on the medium.
[0031]
=== Steps (7) to (8) ===
Steps (7) to (8) are the steps of the order placement / allocation processing. FIG. 13 shows the contents of the order placement / allocation processing.
[0032]
That is, the Web server A1 that operates the material brokerage site and the Web server A2 that operates the material outlet market site, when a predetermined bid closing date, for example, 7/20, arrives, exhibits the products stored in the exhibition information database. The information is compared with the purchase desire information of the product stored in the purchase desire information database. Then, for the matching product, the lowest bid price lower than the bid price is presented in order from the purchaser (buyer) who has offered the higher bid price, and the desired sales use is earlier than the exhibition acceptance date. Allocate and allocate products of suppliers.
[0033]
That is, as shown in FIG. 13, for a plurality of pieces of exhibition information received on the middleman site side, for example, with regard to cedar plywood, middleman No. with a reception date of 7/10 and a minimum successful bid price of 700 yen. 010 and the middleman No. of 600 yen on 7/11. 011 and the middleman No. of 500 yen on July 18th. Assuming that there is 012 item information, priority is given to an item with an earlier receipt date than the lowest bid price. On the other hand, on the bidding side of the purchase requesting user (buyer), the bid price is prioritized over the reception date, and the products are allocated and allocated in descending order of the bid price.
[0034]
That is, if there is purchase request information that buyers who are purchase requesters have been accepted in the order of A, B, and C at bid prices of 700 yen, 500 yen, and 700 yen, the priority order is determined. Are A, C, and B. Therefore, the broker number No. Of the 1000 cedar plywoods of 010, 500 are allocated to buyer A who wants 500 sheets and are allocated ((1)), and the remaining 500 sheets are buyer C who wants 2000 sheets. And allocation is performed ((2)). Next, the broker no. All of the 500 sheets of No. 011 are subsequently allocated to the buyer C who wants the above-mentioned 2,000 sheets and the allocation is performed ((3)). Of the 1200 pieces of 012, 1000 pieces are allocated to the buyer C who wants the 2,000 pieces and allocation is performed ((4)). As a result, all the desired number of 2,000 sheets of the buyer C are allocated. And the middleman No. The remaining 200 of the 1,012 sheets of 012 are allocated to buyer B who desires 500 sheets, and allocation is performed, and finally, buyer B has a shortage of 300 sheets. Buyer B will carry over the necessary balance to the next closing.
[0035]
=== Steps (9) to (10) ===
Steps (9) to (10) are steps for notifying the supplier and the buyer of information on the allocation result after the above-mentioned allocation / allocation work.
[0036]
That is, in step (9), the Web server A1 of the middleman site sends a notification of the successful bid information after closing as shown in FIG. Send. This e-mail contains a sales result tag that is hyperlinked to the URL of the sales result notification screen for the current fiscal year, which is configured on the exclusive screen of each supplier, and the supplier who receives this e-mail displays the sales result tag When clicked, the data of the sales result notification screen as shown in FIG. 15 is transmitted from the Web server A1 of the broker site to the terminal B of the supplier and displayed. Then, by pressing the “product delivery information / order sheet” button on the screen, the data of the product delivery information notification screen further describing the product pickup information as shown in FIG. 16 is transmitted from the Web server A1. By pressing the “print purchase order” button displayed on the screen, a purchase order (not shown) is output from a printer connected to the terminal B of the supplier. That is, a sales result notification with a purchase order attached is transmitted along with the details of the sales quantity, the sales price, and the product delivery information.
[0037]
On the other hand, in step (10), the web server A2 of the material outlet market site sends a notice of the successful bid information after closing as shown in FIG. Send. The e-mail contains a successful bid information tag hyperlinked to the URL of the post-closing bid result notification screen configured for the current term closing, which is configured on a dedicated screen for each buyer. When the tag is clicked, the data of the post-closing bid result notification screen as shown in FIG. 17 is transmitted from the web server A2 of the material outlet market site to the buyer's terminal C and displayed. Then, by pressing the “Billing Information” button on the screen, the data of the billing information screen as shown in FIG. 18 is further transmitted and displayed from the Web server A2, and the “Billing” button on the screen is pressed. Thus, a bill (not shown) is output from a printer connected to the buyer's terminal C. That is, a bid result notification with an invoice attached is transmitted along with the details of the sales quantity and the sales price.
[0038]
=== Steps (11) to (16) ===
Steps (11) to (16) show the steps from payment of the price to delivery of the product. As shown in step (11), when the buyer has paid the goods by transferring the money to the designated financial institution, and the remittance information from the financial institution is input to the Web server A2 of the material outlet market site, the step is performed. As shown in (12), a notification of payment confirmation information as shown in FIG. 19 is transmitted by e-mail from the web server A2 of the material outlet market site to the terminal C of the buyer. In this e-mail, a delivery information tag hyperlinked to the URL of the arrival confirmation information / delivery note screen configured on the dedicated screen of each buyer is described, and the buyer receiving this e-mail identifies the delivery information tag. When clicked, the data of the receipt confirmation information / delivery note screen including the product delivery information as shown in FIG. 20 is transmitted from the web server A2 of the material outlet market site to the buyer's terminal C, and is displayed. By pressing the "Print delivery note" button, a delivery note (not shown) is output from the printer connected to the buyer's terminal C. After confirming delivery, the delivery note is faxed or the like. You will get a reply.
[0039]
When the remittance information from the financial institution is input, the information is transmitted to the web server A1 of the material brokerage site as shown in step (13), and the information of the material brokerage site that has acquired the information is transmitted. As shown in step (14), the Web server A1 sends a notification of the remittance information as shown in FIG. 21 to the terminal B of the supplier by e-mail. This e-mail contains the payment details tag hyperlinked to the URL of the payment information screen configured on the exclusive screen of each supplier. When the supplier who receives this e-mail clicks the payment details tag, As shown in FIG. 22, data of a payment information screen including the payment information as shown in FIG. 22 is transmitted and displayed from the Web server A1 of the material broker site to the terminal B of the supplier.
[0040]
Further, as shown in steps (15) to (16), the web server A1 of the material brokerage site notifies the shipping company of the goods pickup and delivery based on the delivery information notified to the supplier and the buyer. The shipping company picks up the goods on the designated date.
[0041]
Therefore, in the construction material sales / purchase support system according to the present embodiment configured as described above, a user of a contractor who handles construction material products registered as a member holds a product whose inventory needs to be adjusted. If it becomes necessary to sell the product at a low price, it is possible to sell the product in an auction format and to dispose of the product by simply registering the product for sale. In addition, the registered user can register the information on the construction material product desired to be purchased in the web server A2 of the material outlet market site and purchase the product at an auction format at a low price. Will be able to In addition, since construction material products are anonymously traded via the web server A1 at the material selling site and the web server A2 at the material outlet market site, the sales applicant and the purchase applicant know each other. Therefore, it is possible to buy and sell construction materials without being known to business partners or third parties.
[0042]
In other words, it is possible to realize a low-cost, anonymous and inexpensive market for construction materials between members who are registered members, without the need to be known to business partners or third parties. It is possible to assist a company that has a necessary product to dispose of the product without fail, and to support a purchaser of construction materials to purchase the product at the lowest possible price.
[0043]
【The invention's effect】
As described above in detail in the embodiments, according to the present invention, when it becomes necessary to adjust the inventory of construction material products, it is possible to securely dispose of the product without knowing it to the business partner or a third party. A possible market can be realized.
[Brief description of the drawings]
FIG. 1 is a diagram schematically illustrating a network configuration of a Web server that operates a sales / purchase support system for construction materials according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing an outline of a temporal processing flow (data flow) exchanged between the support system and an external computer.
FIG. 3 is a diagram showing an example of a member registration screen.
FIG. 4 is a diagram showing an example of a member registration reception screen.
FIG. 5A is a diagram showing an example of an ID / password notification e-mail for a material supplier. (B) is a diagram showing an example of an electronic mail for notification of an ID / password for a material buyer.
FIG. 6 is a diagram showing an example of an entry authentication screen for a material broker site provided by the sales / purchase support system.
FIG. 7 is a diagram showing an example of a product exhibition registration screen of a material broker site provided by the sales / purchase support system.
FIG. 8 is a diagram showing an example of a screen for accepting the product exhibition registration.
FIG. 9 is a diagram showing an example of a confirmation screen for the commodity exhibition registration.
FIG. 10 is a diagram showing an example of a screen for authentication of entry to a material outlet market provided by the sales / purchase support system.
FIG. 11 is a diagram showing an example of a product bidding screen of a material outlet market site provided by the sales / purchase support system.
FIG. 12 is a diagram showing an example of a confirmation screen for the content of a bid.
FIG. 13 is a diagram for explaining the contents of an order placement / allocation process;
FIG. 14A is a diagram illustrating an example of a sales result notification e-mail to a material supplier. (B) is a figure which shows an example of the e-mail for notification of successful bid information for material buyers.
FIG. 15 is a diagram showing an example of a sales result notification screen provided to a material supplier.
FIG. 16 is a diagram showing an example of a product delivery information notification screen provided to a material supplier.
FIG. 17 is a diagram showing an example of a post-closing bid result notification screen provided to a material buyer.
FIG. 18 is a diagram illustrating an example of a screen of billing information provided to a material buyer.
FIG. 19 is a diagram showing an example of a payment confirmation e-mail provided to a material buyer.
FIG. 20 is a diagram showing an example of an arrival confirmation information / delivery note screen provided to a material buyer.
FIG. 21 is a diagram showing an example of an e-mail for notification of payment remittance information provided to a material supplier.
FIG. 22 is a diagram showing an example of a payment information screen provided to a material supplier.
[Explanation of symbols]
A (A1, A2) Web server
B (B1-Bn) External terminal of the user (sale applicant)
C (C1-Cn) External terminal of the user (purchase applicant)

Claims (1)

A sales / purchase support system for housing materials operated by a computer using the Internet, characterized by the following items (1) to (5).
(1) A system that mediates the purchase and sale of housing materials between registered users and provides support in an anonymous auction format, in which a member database and users who wish to sell products are registered. An external terminal operated by a user, having an exhibition information database storing accumulated exhibition information of purchased products and a purchase desire information database storing accumulated purchase wish information of products registered by a user wishing to purchase the product. Communicate with each other via the Internet to function as a Web server.
(2) The member database includes various information of contact notification destination means such as a member name, a location, and an e-mail address in association with a member ID. The exhibition information database includes various information such as member ID, product name, product-specific specification information such as weight and size, sales quantity, minimum successful bid price, and reception date. The purchase desire information database includes various information such as a member ID, a product name, a purchase quantity, and a bid price.
(3) The Web server responds to a request from an external terminal of a user who accesses the product exhibition registration Web page by designating the URL of the product exhibition registration web page, and the product registration screen for a product to be sold and a transmission button are attached. When the exhibit registration Web page is provided and the member ID and the information on the predetermined items relating to the desired product to be sold are received by operating the send button, the exhibit reception management number is automatically set. The information is provided and stored in an exhibition information database provided in an appropriate storage medium, and an acceptance confirmation notification is transmitted.
(4) The Web server responds to a request from an external terminal of a user who accesses the product by specifying a URL of a product purchase registration web page, and is provided with a registration screen of a product to be purchased and a transmission button. When a purchase wish registration Web page of a product is provided, and the member ID input to the purchase wish registration screen on the purchase wish registration Web page and information on predetermined items regarding the purchase wish product are received by operating the transmission button, A receipt confirmation notification of the purchase request is transmitted and stored in a purchase request information database provided in an appropriate storage medium.
(5) When the predetermined bid closing date has arrived, the Web server compares the exhibition information of the product stored in the exhibition information database with the purchase information of the product stored in the purchase information database, and matches the matched product. About, in order from the purchase requesting user who presented the higher bid price, the lowest bid price lower than the bid price is presented, and the products of the sales requesting user earlier in the exhibition acceptance date are sequentially assigned, Based on the allocation result, a sales result notification with a purchase order attached along with details of the sales quantity, sales price, and product delivery information is transmitted to the sales wishing user, while the purchase wishing user is Then, a bidding result notification accompanied by an invoice is transmitted together with the details of the sales quantity and the sales price.

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