JP2002149945A - Selling price determining method and device thereof and storage medium storing selling price determining program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a selling price determining method and a device thereof and a storage medium storing a selling price determining program capable of providing a sales system capable of automatically performing business negotiations close to actual world and determining selling price in the sales system by electronic commerce. SOLUTION: A sales policy describing file describing sales policies that customer ID, an order list, and contents of negotiations are acquired from a buyer terminal unit through an interface from a network, commodity management database managing information of the commodity to be handled is retrieved based on commodity ID in the order list, a total amount of ordered goods is calculated, and selling price of the commodity is determined based on the information acquired from the buyer terminal unit is read, customer management database managing customer information and commodity management database are retrieved based on negotiation conditions written in the sales policy describing file, new selling price is determined based on the negotiation conditions or the commodity capable of being provided free are determined, and the determined selling price or the commodity capable of being provided free are provided to the buyer terminal unit thorough the interface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for determining a selling price and a storage medium storing a selling price determining program, and more particularly to a retail store selling goods to individuals, such as price negotiation. The present invention relates to a sales price determination method and apparatus applied to a sales system in a case where business negotiations are conducted using network computer electronic commerce, and a storage medium storing a sales price determination program.

[0002]

2. Description of the Related Art In a general electronic commerce sales system, a retail store operates a home page on which a product, its price, and a delivery date are specified, and when a buyer likes the product, a purchase button on the home page is displayed. The product is purchased by pressing the button. However, in the case of such a sales form, at present, the buyer can unilaterally determine the selling price and the delivery date, and there is no room for negotiation.

Further, in some sales systems, there is a system in which the price is reduced to a certain extent only by pressing a discount button or the like.

[0004] In some sales systems, there is also a system in which such sales negotiations can be performed using electronic mail.

[0005]

However, in a negotiation system which is only used to press a discount button or the like as seen in some sales systems, negotiations performed in the real world, such as customer discount, membership You can use personal information such as discounts, purchase prices, stock quantities, or purchase quantities,
Negotiations such as discounts based on the purchase price are not performed.

[0006] Further, in the case of a sales system using electronic mail, there is a problem that automation, which is an advantage of the sales system in electronic commerce, is lost, and negotiations by electronic mail require a long negotiation time.

[0007] The present invention has been made in view of the above points, and in a sales system in electronic commerce, business negotiations close to the real world can be automatically performed, that is, individual discounts such as the above-mentioned customer discount, member discount, and the like. A method and apparatus for determining a sales price that can perform a sales system that can determine a sales price by using various information and various factors such as the purchase price, stock quantity, purchase quantity, and purchase price of a product. And a storage medium storing a selling price determination program.

[0008]

FIG. 1 is a diagram for explaining the principle of the present invention.

[0009] The present invention (claim 1) provides an electronic commerce based on a buyer's purchase condition and a seller's sale condition.
In a selling price determination method for determining a selling price of a product, a customer ID, an order list, and negotiation contents are obtained from a buyer terminal via an interface via a network (step 1), and the information is obtained based on the product ID of the order list. A search of a merchandise management database for managing information on the merchandise, calculating a total price of the ordered merchandise (step 2), and determining a selling price of the merchandise based on the information obtained from the buyer's terminal. The sales policy description file that describes the sales policy is read, and based on the negotiation conditions described in the sales policy description file, a product management database and a customer management database that manages customer information are searched, and based on the negotiation conditions, , Determine a new selling price, or determine a product that can be provided free of charge (step 3), and determine the determined selling price. Or, via the interface possible items offered for free, it notifies the buyer of the terminal (Step 4).

According to the present invention (claim 2), when there are a plurality of sales policy description files, a sales policy description file is randomly selected and searched.

According to the present invention (claim 3), when there are a plurality of search results obtained by searching a product management database and a customer management database for managing customer information based on negotiation conditions, the search results are selected at random. I do.

According to the present invention (claim 4), if there is no search result obtained by searching the merchandise management database or the customer management database for managing customer information based on the negotiation conditions, the negotiation is determined as a negotiation failure. To the buyer terminal via the interface.

FIG. 2 is a diagram showing the principle of the present invention.

According to the present invention (claim 5), in electronic commerce, based on a buyer's purchase condition and a seller's sale condition,
A sales price determination device for determining a sales price of a product, which is a product management database 4 for managing handled product information
0, a customer management database 50 that manages customer information of a product purchaser, a sales policy description file 60 that describes a sales policy for determining a sales price of a product with reference to input data of a buyer, and a network. A buyer information input unit 110 for acquiring a customer ID, an order list, and negotiation contents from a buyer terminal via the interface 30;
Based on the product ID in the order list, a product management database that manages information on the products handled is searched, the total price of the ordered product is calculated, and the sales policy description file 60 is calculated based on the information obtained from the buyer's terminal. And search the merchandise management database and the customer management database based on the negotiation conditions described in the sales policy description file 60. Based on the negotiation conditions and the total amount obtained by the price calculation means, Price determining means 1 for determining a new selling price or determining a product that can be provided free of charge
20 and a notifying unit 130 for notifying the buyer terminal of the determined selling price or the item that can be provided free of charge via an interface.

According to the present invention (claim 6), the price determining means 12 is provided.
0, if there are a plurality of sales policy description files 60, means for randomly selecting and searching for a sales policy description file is included.

According to the present invention (claim 7), the price determining means 12 is provided.
0, if there are a plurality of search results obtained by searching the merchandise management database 40 and the customer management database 50 based on negotiation conditions, means for randomly selecting the search results is included.

According to the present invention (claim 8), in the notification means 130, the commodity management database 4
0, the search result obtained by searching the customer management database 50 is
If none exists, a means for notifying the buyer terminal via the interface 30 that the negotiation has been broken is included.

According to the present invention (claim 9), in electronic commerce, based on a buyer's purchase condition and a seller's sale condition,
A storage medium storing a selling price determination program for determining a selling price of a product, a process of acquiring a customer ID, an order list, and negotiation contents from a buyer terminal via an interface via a network; Based on the product ID, search the product management database that manages information on the products handled, calculate the total price of the ordered products, and determine the selling price of the product based on the information obtained from the buyer's terminal A sales policy description file that describes a sales policy to be executed is read, and a product management database and a customer management database that manages customer information are searched based on the negotiation conditions described in the sales policy description file. The process of determining a new selling price or a product that can be offered free of charge, Constant has been sold price or, via the interface possible items offered for free, and a process of notifying the buyer of the terminal.

The present invention (claim 10) further comprises a process of randomly selecting and searching for a sales policy description file when there are a plurality of sales policy description files.

According to the present invention (claim 11), when there are a plurality of search results obtained by searching a product management database and a customer management database for managing customer information based on negotiation conditions, the search results are selected at random. Further comprising a process.

According to the present invention (claim 12), if there is no search result obtained by searching the merchandise management database and the customer management database for managing customer information based on the negotiation conditions, if there is no search result, the negotiation is broken. To the buyer terminal via the interface.

As described above, in the present invention, the method of determining the selling price (for example, 5% discount when buying 5 or more pieces) is described in the sales policy description file, and the selling price of the product determined based on the method is determined. Is converted to an HTML file and exchanged with the buyer through a Web server or by using a dedicated server and client software, thereby enabling a business negotiation close to the real world.

In the present invention, the negotiation conditions (product code, product code,
Product name, stock quantity, quality retention period, next arrival date, list price, etc.)
By determining the selling price by referring to (for example, a discount of 10% if the stock number is 50 or more), it is possible to negotiate close to the real world.

Further, in the present invention, the sales price is referred to by referring to the negotiation conditions of the customer information (customer ID, name, purchase history, purchase amount, age, birthday, etc.) as the description material of the sales policy description file. By making a decision (for example, a 5% discount for a person whose previous purchase amount was 10,000 yen or more), a negotiation close to the real world is possible.

Further, in the present invention, the sales price is determined by referring to the input data (reaction) of the customer as the description material of the sales policy description file (for example, 1% discount when a specific keyword is input). Etc.), business negotiations close to the real world are possible.

Further, in the present invention, not only the selling price but also the price of a product to be provided free of charge is determined as a presentation item of a negotiation (for example, a selling price of 50,000 yen or more for a video deck is 1 price).
2,000 yen videotape, etc.), so that business negotiations close to the real world are possible.

[0027]

FIG. 3 shows the configuration of a price determination system according to the present invention.

The system shown in FIG.
It comprises a network 20, an interface 30, a price determination device 100, a product management database 40, a customer management database 50, and a sales policy description file 60.

The merchandise management database 40 is a database for managing the merchandise information, and as shown in FIG.
Information on the product such as a product code, a product name, the number of stocks, a purchase price, a list price, and other information such as the next arrival date is accumulated, and can be accessed from the interface and the price determination device 100.

The customer management database 50 is a database for managing customer information of a product purchaser, and as shown in FIG. 5, information on the customer such as a customer ID, name, address, birthday, purchase amount, and other purchase history. Are stored, and can be accessed from the interface 30 or the price determination device 100.

The sales policy description file 60 is a file in which sales policies such as negotiation conditions and negotiation break conditions are described.
A usage data table, which is a list of data items of customer information and product information to be used, a negotiation table in which negotiation results and conditions for conducting the negotiation are written, and conditions for breaking negotiations are written. There are three tables of negotiation failure tables. The sales policy description file 60
Are at least one in the present system, and when there are a plurality of them, they are selected at random. The random selection can prevent the buyer's terminal from deciphering the sales strategy.

The interface 30 accesses the merchandise management database 40, obtains the obtained various merchandise information, and creates a screen (HTML file) for displaying the obtained information and buttons for purchasing the merchandise and a negotiation input window. And the client terminal 10 via the network 20
Update your browser. In addition, the screen configuration is stored in the client terminal 10 as an application, and only the product information is updated via the network 10. Further, when the buyer inputs, on the terminal 10, the product to be ordered and the negotiations on the negotiation for purchasing the product on the basis of the product information, the input process is passed to the price determination device 100.

There are two main types of negotiations. One is to enter a specific amount (negotiation amount).
The other is an action, for example, "More discount",
This is an action (negotiation negotiation action) such as “with extra bonus”. This action may be prepared on the interface 30 side, displayed on the screen in advance, and made to be selected by the buyer.

The price determining device 100 is a device that determines the selling price of a product by referring to the product management database 40, the customer management database 50, and the sales policy description file 60.

FIG. 6 shows the configuration of the price determination device of the present invention.

The sales decision apparatus 100 shown in FIG. 1 includes a buyer information input unit 110, a price decision unit 120, and a notification unit 130.

The buyer information input unit 110 inputs customer information (customer ID), order list, negotiation contents, and the like of the buyer via the interface 30, and inputs the information to the price determination unit 12.
Pass to 0.

The price determination unit 120 searches the sales policy description file 60, the product management database 40, and the customer management database 50 on the basis of the information input by the buyer, and the buyer places an order according to the search result. Determine the price of the product. For example, based on the negotiation conditions, a new product price is determined, or processing such as proposing a product that can be added free of charge is performed, and the determined price is transmitted to the terminal 10 via the interface 30.

In the following, in the price determination device 100,
An operation of determining the price of a product while exchanging with the buyer terminal 10 via the network 20 and the interface 30 will be described.

FIG. 7 is a flowchart of the commodity price determination processing of the present invention.

As a premise of the processing described below, when a buyer purchases a product, the desired product and its number, and
The negotiation is transmitted to the price determination device 100 together with the customer ID. At this time, if the buyer does not have a customer for the first purchase or the like, the customer registration form or the like is output and the buyer Handover to the terminal 10 to create customer information.

The usage data table of the sales policy description file 60 used below is as shown in FIG.
For items of the customer management database 50 to be referred to,
The total purchase price and the items of the product management database 40 to be referred to are the stock quantity and purchase price.

As shown in FIG. 9, the negotiation table of the sales policy description file 60 includes negotiation results and conditions corresponding to the negotiation results.

Further, the negotiation breakdown table of the sales policy description file 60 contains conditions (eg,
(When the total purchase price is larger than the offer price).

Under the above premise, the price determination device 100
Will be described.

First, the price determination device 100 operates with the input of the buyer transmitted from the interface 30 as a trigger. From the interface 30 to the buyer information input unit 11
The information input to 0 is the customer ID, the desired product code and the number thereof, and the negotiation information. From the information, the price determination unit 120 causes the product management database 4
0, and obtains the selling price of the product (step 201). If there are orders for a plurality of products, when all sales prices are acquired, the total price of the ordered products is calculated (step 202). It is assumed that the price determination unit 120 holds the number of negotiations and the amount presented last time until the end of the negotiations.

Next, the price determination section 120 reads the sales policy description file 60. The sales policy description file 60 includes, as shown in FIG. 8, a list of data items of customer information and merchandise information to be used (use data table), and as shown in FIG. A negotiation table that describes the conditions for conducting negotiations and a negotiation breakdown table that describes the conditions for breaking negotiations, as shown in FIG. With two tables. Further, the negotiation table may be automatically interpreted to find out data items of customer information and product information to be used. If there are a plurality of sales policy description files 60 (step 203), by randomly selecting them, it is possible to prevent the buyer from decrypting the sales strategy from the terminal 10 (step 204). By performing these processes, the price determination unit 120 reads the sales policy description file 60 (step 20).
5). Further, the price determination unit 120 accesses the corresponding database from the usage data table of the sales policy description file 60 and reads the data (step 206).

The price determining unit 120 may prepare some methods when determining the negotiation table or the negotiation breakdown table. For example, when the purchase price is read, a method of defining the total value of the purchase price as a description by preparing a description (total purchase price) in the negotiation table or the negotiation breakdown table is provided. That is good. Similarly, a minimum (purchase amount), an average (gross margin), and the like can be considered.

The price determination unit 120 searches the negotiation contents of the negotiation which matches the conditions written in the negotiation table of the read sales policy description file 60 from the negotiation contents of the buyer, the product information of the ordered product, and the customer information of the buyer. (Step 207).

If the searched negotiation result is not found,
The negotiation is broken, and the fact is transmitted to the interface 30, and the negotiation is completed (step 208, step 21).
3).

If one or more search results are found,
Based on the result, the notification unit 130 calculates a new price or proposes a product (additional bonus) that can be added free of charge.

A calculation formula for calculating a new price based on the above negotiation is as follows.

New offer amount = max (previous offer amount ×
(Discount rate, negotiation negotiation amount) Also, when the buyer inputs negotiation negotiation activity and the negotiation negotiation amount is reached, the new offer amount = the previous offer amount x the discount rate.

Proposals for commodities that can be added free of charge are issued at random by proposing an SQL formula or the like to the commodity management database 40. For example, if the negotiation condition is to attach a product with a selling price of 500 yen or less, Where ((product management database. Selling price) <
= 500); is randomly selected from the product list.
If the product management database 40 is categorized, the product may be selected by narrowing down the conditions. Also,
If there are multiple negotiation results, select them randomly. The random selection can prevent the buyer from deciphering the sales strategy. Note that the selling price is used as the amount presented before the first time (steps 208, 209, 21).
0).

The price determination unit 120 reads the negotiation breakdown table of the sales policy description file 60, and if the negotiation breakdown condition is satisfied, the negotiation is broken, and the fact is transmitted from the notification unit 130 to the interface 30 to complete the negotiation. (Step 211).

If the negotiation breach condition is not satisfied,
The notification unit 130 transmits the new sales amount to the interface 30.
Send to The interface 30 merges the result into a new merchandise information and a screen (HTML file) displaying a merchandise purchase button, a negotiation input window, and the like, and presents the merged merchandise information to the buyer terminal 10 (step 212).

Embodiments of the present invention will be described below with reference to the drawings.

In the following embodiment, an electronic mall operated on a homepage will be described as an example.

[0058] For buyers who use the electronic mall for the first time,
Have the user register. Perform user authentication on the start page of the homepage. For example, assume that “Taro Yamada” (customer ID = 1) in FIG. 5 logs in.
After the authentication, the homepage automatically displays a list including a product code, a price, and a number input column for purchase as shown in FIG. Go to the home page that displays radio buttons for "More discount" and "Add extra", a field to enter the amount of negotiation negotiation, a purchase button, and a negotiation button. The information of the buyer specified as the personal authentication is held by the electronic mall until the buyer finishes using the electronic mall.

The buyer inputs the number of items to be ordered on the day of obtaining the item to be ordered from the list of prices and the like, and then presses the purchase button. For example, enter 1 in each of the number fields of a low-cost personal computer, a 17-inch display, and a color printer, select "More discount", and press the negotiation button.
When the purchase button is pressed, information on the product code and the number of products is posted to the price determination unit 130. In the case of the above-described example, information such as product code 10001: number 1; product code 20002: number 1; product code 30002: number 1: is posted. The price determination unit 120 of the price determination device 100 accesses the product management database 40 and, based on the example of FIG. 4, obtains the product code 10001: price ¥ 80,000 product code 20002: price ¥ 40,000 product code 30002: price ¥ Obtain 20,000 and calculate the sales price of $ 140,000.

Next, the usage data table of the sales policy description file 60 is read, and the customer ID 1: the total purchase price ¥ 1,000,000 from the customer management database 50 The product code 10001: the number of stocks 25: Price 45,000 Product code 20002: Stock number 20: Purchase price 28,000 Product code 30002: Stock quantity 50: Purchase price ¥ 15,000.

Next, the search unit 110 reads the negotiation table of the sales policy description file 60 and performs matching.
For example, if the date of the negotiation is January 1, the negotiation conditions are met by discounting the selling price by 5%, discounting the selling price by 15%, and discounting the selling price by 20%.

Assuming that the selling price is randomly selected to be 15% discount, the offered price is as follows: ¥ 140,000 × (10015) / 100 = $ 119,000.

Next, matching of the negotiation breaking conditions is performed.
Since there is nothing that satisfies the condition, this offer price is transmitted to the interface 30.

The interface 30 is a home page that displays a radio button of “reduce more” and “add a bonus”, a column for inputting the amount of negotiation negotiation, a purchase button, and a negotiation button, with the presented amount as the negotiation negotiation action. Is displayed on the terminal 10 of the buyer.

Next, the buyer "Taro Yamada" inputs the negotiation amount for the negotiation "$ 100,000" and presses the negotiation button.

It is assumed that the price determination device 100 performs the same processing as described above, and selects 20% discount on the selling price as the negotiation condition.

At this time, the offered price is max (119,000 × (100-20) / 100,100,000) = max (95,200,100.000) = $ 100,000.

Since this value does not satisfy the negotiation breaking condition, this offer price is transmitted to the interface 30. The interface 30 displays the presented amount and the negotiation negotiation
On the buyer's terminal 10, a home page displaying radio buttons for "More discount" and "Additional bonus", a field for inputting a negotiation negotiation amount, a purchase button, and a negotiation button are displayed.

[0069] The buyer "Taro Yamada" closes the negotiation by pressing the purchase button.

In the above-described embodiment, the flowchart shown in FIG. 7 is constructed as a program, and when the present invention is implemented, a disk device connected to a computer used as a price determining device, a floppy (registered trademark) The present invention can be easily realized by storing it in a portable storage medium such as a disk or a CD-ROM and installing it when practicing the present invention.

It should be noted that the present invention is not limited to the above-described embodiment, and various modifications and applications are possible within the scope of the claims.

[0072]

As described above, according to the present invention, a negotiation for matching a buyer's purchase condition and a seller's sale condition is performed as an electronic commerce on a network, so that the price is matched with the negotiation condition. Can be set. This is not only a mere price,
Flexible price setting is possible in consideration of the buyer's purchase history, stock status, and the like, so that business negotiations close to the real world can be conducted.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the principle of the present invention.

FIG. 2 is a principle configuration diagram of the present invention.

FIG. 3 is a configuration diagram of a price determination system of the present invention.

FIG. 4 is a diagram showing an example of a product management database according to the present invention.

FIG. 5 is an example of a customer management database of the present invention.

FIG. 6 is a configuration diagram of a price determination device of the present invention.

FIG. 7 is a flowchart of a commodity price determination process of the present invention.

FIG. 8 is an example of a usage data table of a sales policy description file according to an embodiment of the present invention.

FIG. 9 is an example of a negotiation table of a sales policy description file according to an embodiment of the present invention.

FIG. 10 is an example of a negotiation breakdown table of a sales policy description file according to an embodiment of the present invention.

FIG. 11 is an example of a product list presented by an interface according to an embodiment of the present invention.

[Description of Signs] 10 terminal 20 network 30 interface 40 product management database 50 customer management database 60 sales policy description file 100 price determination device 110 buyer information input means, buyer information input section 120 price determination means, price determination section 130 notification means, Notification section

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) G06F 17/30 170 G06F 17/30 170Z (72) Inventor Masaki Yamada 2-3-1 Otemachi, Chiyoda-ku, Tokyo Date Within Telegraph and Telephone Corporation (72) Inventor Shozo Higashi 2-3-1 Otemachi, Chiyoda-ku, Tokyo Japan Within Telegraph and Telephone Corporation (72) Masanao Shimizu 3-15 Babacho, Chuo-ku, Osaka City, Osaka No. Nishi-Nippon Telegraph and Telephone Corporation F term (reference) 5B049 BB11 CC05 CC08 CC36 DD01 DD05 EE01 EE05 FF03 FF04 FF09 GG04 GG07 5B075 KK07 KK13 KK33 KK37 ND03 ND20 NK54 PQ02 PQ20

Claims (12)

[Claims] 1. A sales price determining method for determining a selling price of a product based on a buyer's purchase condition and a seller's sales condition in electronic commerce, comprising: An ID, an order list, and negotiation contents are acquired; a product management database that manages information on handled products is searched based on the product ID of the order list; a total price of ordered products is calculated; Based on the information obtained from the sales policy description file that describes the sales policy for determining the sales price of the product, based on the negotiation conditions described in the sales policy description file, the product management database, Search the customer management database that manages customer information and determine a new selling price based on the negotiation conditions. Or determining a product that can be provided free of charge, and notifying the determined selling price or the product that can be provided free of charge to the buyer terminal via the interface. Decision method. 2. The selling price determination method according to claim 1, wherein when there are a plurality of said sales policy description files, said sales policy description file is selected and searched at random. 3. The method according to claim 1, wherein when there are a plurality of search results obtained by searching the merchandise management database and the customer management database for managing customer information based on the negotiation conditions, the search results are selected at random. How to determine the selling price of 4. If there is no search result obtained by searching the merchandise management database and the customer management database for managing customer information based on the negotiation conditions,
The selling price determination method according to claim 1, wherein the buyer is notified of the negotiation failure via the interface to the buyer terminal. 5. A sales price determination device for determining a sales price of a product based on a purchase condition of a buyer and a sales condition of a seller in electronic commerce, a product management database for managing product information to be handled, A customer management database for managing customer information of a product purchaser; a sales policy description file describing a sales policy for determining a sales price of a product with reference to the input data of the buyer; and a network via an interface A buyer information input unit for acquiring a customer ID, an order list, and negotiation contents from the buyer terminal; and a product management database for managing information on a handled product based on the product ID of the order list. Calculate the total price of the product and read the sales policy description file based on the information obtained from the buyer's terminal. Searching the merchandise management database and the customer management database based on the negotiation conditions described in the sales policy description file, and based on the negotiation conditions and the total amount obtained by the price calculation means. A price determining means for determining a new selling price or a product that can be provided free of charge, and the determined selling price or the product that can be provided free of charge via the interface to the buyer And a notifying means for notifying the terminal. 6. The selling price determining apparatus according to claim 5, wherein said price determining means includes means for randomly selecting and searching for said sales policy description file when there are a plurality of said sales policy description files. 7. The commodity management database, based on the negotiation conditions,
6. The selling price determination device according to claim 5, further comprising means for randomly selecting the search result when there are a plurality of search results obtained by searching the customer management database. 8. The product management database, based on the negotiation conditions,
6. The selling price determination device according to claim 5, further comprising means for notifying the buyer terminal via the interface that the negotiation has failed if there is no search result obtained by searching the customer management database. . 9. A storage medium for storing a sales price determination program for determining a sales price of a product based on a buyer's purchase conditions and a seller's sales conditions in electronic commerce, wherein the storage medium stores the sales price via a network via an interface. A process of acquiring a customer ID, an order list, and negotiation contents from the buyer's terminal; and searching a product management database for managing information on products handled based on the product IDs of the order list, and obtaining a total of ordered products. Based on the process of calculating the amount and the information obtained from the buyer's terminal, a sales policy description file that describes the sales policy for determining the sales price of the product is read, and is described in the sales policy description file. Based on the negotiation conditions, the product management database and the customer management database for managing customer information are searched, A process of determining a new selling price or a product that can be provided free of charge based on the negotiation conditions; and determining the determined selling price or the product that can be provided free of charge via the interface. And a process of notifying the buyer terminal. A storage medium storing a selling price determination program. 10. The storage medium according to claim 9, further comprising a process of randomly selecting and searching for the sales policy description file when there are a plurality of the sales policy description files. 11. The method according to claim 11, further comprising the step of, when there are a plurality of search results obtained by searching the product management database and the customer management database for managing customer information based on the negotiation conditions, randomly selecting the search results. Item 10. A storage medium storing the sales price determination program according to Item 9. 12. When there is no search result obtained by searching the merchandise management database and the customer management database for managing customer information based on the negotiation conditions,
The storage medium storing the selling price determination program according to claim 9, further comprising a process of notifying the buyer terminal via the interface as a negotiation failure.