KR20000063174A - Agent system for a plurality of buyers jointly using electrically commercial network and transaction method thereof - Google Patents

Abstract

PURPOSE: A method and system for substituting purchase is provided to reduce logistics cost and circulation margin by using high speed Internet and substituting a joint purchase of consumers purchasing same product in a cyber-space. CONSTITUTION: A trading computer(100) inquires of a seller computer(300) about selling item, and when selling item information is notified from the seller computer(300), stores the notified selling item information to a data storage unit. When purchase demand is inputted from buyers, the trading computer(100) provides the selling item information to buyer computer(200), receives purchasing item from the buyer computer(200), and notifies the seller computer(300) with the purchasing item. The seller inquires the buyers of payment method. When the buyers deposit money according to the selected payment method, the seller delivers the items to the corresponding buyers.

Description

Solidarity purchasing agency system using e-commerce and transaction method thereby {AGENT SYSTEM FOR A PLURALITY OF BUYERS JOINTLY USING ELECTRICALLY COMMERCIAL NETWORK AND TRANSACTION METHOD THEREOF}

The present invention relates to a trading system and method by electronic commerce, and more particularly, to a system and a trading method therefor in which the purchase request of a plurality of buyers in solidarity.

A typical form of commerce is a form in which a consumer (buyer) and a seller trade directly, that is, a consumer visits a seller's sales office, a distributor, a store, or the like, and a seller visits a buyer. It was a form of trade that allowed the consumer to purchase the goods he wanted after identifying the goods he sold.

On the other hand, this typical form of commerce has changed dramatically with the development of science and technology, especially communication technology such as the Internet. In other words, commerce through the Internet, an e-commerce business, which allows consumers to purchase desired items in a cyber space without meeting a seller directly, has come. Early e-commerce was merely commerce that replaced commerce in physical space with cyber space. In other words, when a consumer searches for the desired item through the Internet and orders it, the seller delivers the ordered item to the corresponding consumer. Such e-commerce provides the convenience that consumers can purchase goods without having to meet the seller directly.

Recently, as the electronic commerce is activated, consumers are not only provided with convenience of purchasing goods but also many benefits are provided. As the number of sellers through e-commerce increases dramatically, this trend is aimed at revitalizing their sales network by providing the benefits of consumers to shorten the distribution process and thereby reduce the logistics cost. For example, sellers sell a limited number of specific items over the Internet at a price much less than normal, and consumers can purchase the limited number of specific items at a lower price.

However, these benefits are only available to a limited number of consumers. Because sellers sell a limited number of items in the form of a first-come, first-served order, and consumers who order on a first-come, first-served basis can purchase the desired item at a discounted price, but other consumers are forced to purchase the desired item at a normal price. to be. In other words, the recent e-commerce has evolved to provide more benefits to consumers than the early e-commerce, but it is still insufficient. In light of this, there is a need for a trading system that benefits more consumers.

On the other hand, e-commerce is a lot of convenience not only to consumers but also to sellers in one aspect, but on the other side, it causes a lot of damage. For example, intermediary sellers who exploit e-commerce may falsely post on the Internet that they sell goods they don't buy with more benefits, taking orders from consumers and running away with the money they have deposited. In another example, a genuine product may be posted to accept orders from consumers, and when the payment is received, the defective item may be delivered to the consumer, which does not exactly match the posted item. E-commerce is active because of these damages, but consumers are more likely to be reluctant to purchase goods through e-commerce. In other words, there is a need for an institutional trading system that enables consumers to purchase goods with confidence when purchasing goods through electronic commerce, and also prevents sellers from losing creditworthiness through electronic commerce.

Accordingly, an object of the present invention is to provide a trading system and a trading method therefor that enable consumers and sellers to purchase and sell goods with confidence.

It is another object of the present invention to provide a solidarity purchasing agent system and a method of trading by which the purchasing power of individual consumers is collected and sold in a large amount below the wholesale price.

Another object of the present invention is to use the advantages of the Internet to move quickly and efficiently by acting as a solidarity purchase in the cyber space of consumers with a willingness to purchase the same product by mass sales profits, logistics costs of the seller, distribution margin reduction The present invention provides a solidarity purchasing agent system and a transaction method thereby allowing the price component to be returned directly to the consumer.

According to a first aspect of the present invention for achieving these objects, a method of trading a purchasing agent system comprising a computer that enables at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the buyers with goods to be sold by the seller; (B) informing the seller of details of purchase items selected by the buyer for purchase from the provided item information for sale; (C) the seller inquiring about the payment method of purchasing the goods to the corresponding buyers according to the notified purchase item details; (D) the corresponding buyers depositing the price according to the purchase method of goods purchase; (E) the seller delivers the corresponding goods to the corresponding buyers who have made the payment.

According to a second aspect of the present invention, a method of trading a purchasing agent system comprising a computer that enables at least one or more buyers to purchase through a network one or more items provided from a seller includes: (A) providing goods to be sold to the buyer, the information on the selling price having information and a sale price having a discount width that varies depending on the number of purchases of each item; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the purchase request number according to a preset price calculation formula. (B) informing the corresponding buyers of the selling price; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; The process takes place.

The formula above is {present price = starting price-[present application number × (starting price-final price) / target quantity]}, {present price = starting price-[current application number × (starting price-final price) / target quantity]-V}, { Current price = starting price-[current application number × average purchase rate × (starting price-final price) / target quantity]} or {current price = starting price-[current application number × average purchase rate × (starting price-final price) / target quantity]-V} Can be. Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. That's an additional discount.

According to a third aspect of the present invention, a method of trading a purchasing agent system comprising a computer that enables at least one or more buyers to purchase through a network one or more items provided from a seller includes: (A) providing goods to be sold to the buyer, the information on the selling price having information and a sale price having a discount width that varies depending on the number of purchases of each item; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the purchase request number according to a preset price calculation formula. (B) informing the corresponding buyers of the selling price; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Process; (D) the seller inquiring a corresponding purchaser about how to pay the item according to the notified purchase item details; (E) the corresponding buyers depositing money according to a purchase method of goods purchase; And (f) delivering the goods to the corresponding buyers who have made the payment.

The formula above is {present price = starting price-[present application number × (starting price-final price) / target quantity]}, {present price = starting price-[current application number × (starting price-final price) / target quantity]-V}, { Current price = starting price-[current application number × average purchase rate × (starting price-final price) / target quantity]} or {current price = starting price-[current application number × average purchase rate × (starting price-final price) / target quantity]-V} Can be. Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. That's an additional discount.

1 is a view showing that the e-commerce is performed through a solidarity purchasing agent system according to the present invention.

2 is a view showing a specific configuration of the regimental purchasing agency system as shown in FIG.

3 is a view showing in detail the configuration of the trading computer shown in FIG.

4 is a diagram illustrating an example of information stored in a merchandise database for sale shown in FIG. 3;

FIG. 5 is a diagram illustrating an example of information stored in a unit price database according to the number of purchased items illustrated in FIG. 3.

FIG. 6 is a diagram showing in detail the configuration of a shopper computer shown in FIG. 2; FIG.

FIG. 7 is a diagram showing in detail the configuration of the seller computer shown in FIG. 2; FIG.

8 is a view showing a processing flow for a transaction operation performed by the solidarity purchasing agent system according to the present invention.

9 is a view showing an example of a screen displayed on the display unit of the buyer computer during the operation according to the present invention.

FIG. 10 is a diagram illustrating another example of information stored in a unit price database according to the number of purchased items shown in FIG. 3.

11 is a view showing another example of a screen displayed on the display unit of the buyer computer during the operation according to the present invention.

FIG. 12 is a diagram illustrating another example of information stored in a unit price database according to the number of purchased items shown in FIG. 3.

13 is a view showing another example of a screen displayed on the display unit of the buyer computer during the operation according to the present invention.

FIG. 14 is a view showing another example of information stored in a unit price database according to the number of purchased items shown in FIG.

15 is a view showing another example of a screen displayed on the display unit of the buyer computer during the operation according to the present invention.

FIG. 16 is a view illustrating another example of information stored in a unit price database according to the number of purchased items shown in FIG. 3.

17 is a view showing another example of a screen displayed on the display unit of the buyer computer during the operation according to the present invention.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that reference numerals and like elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a view showing that the e-commerce is carried out through a solidarity purchasing agent system according to the present invention. Here, a solidarity purchasing agent system means that instead of a buyer trading the goods directly with the seller, the buyer needs to gather the purchase demands of at least one buyer and trade the goods with the seller so that the buyer can get the benefit of purchasing the goods at a lower price. In addition, the seller means a system that allows the seller to benefit from the so-called "detachable" by selling more quantities, although cheap.

Referring to FIG. 1, the solidarity purchasing agent system 10 acts as a transaction (purchase and sale) between a buyer 20 and a seller 30. The seller 30 informs the goods to be sold in advance in consultation with the solidarity purchasing agent system 10, and the buyer 20 purchases at least one item provided from the seller 30 through the solidarity purchasing agent system 10. . By prior consultation between the seller 30 and the regiment purchasing agent system 10, the regiment purchasing agent system 10 may determine an item to be sold. In this case, the market selling price of the sold goods and the selling price according to the purchase request, that is, the selling price according to the number of application of the selling goods may be determined. According to the present invention, the selling price of the sold goods has a larger discount width as the number of purchase demands of the goods increases. The discount width may change whenever the number of purchase demands increases by a predetermined number. The set number may be 1, may be 5, or may be 10. Although buyer 20 and seller 30 are shown here as one buyer and seller, respectively, it should be noted that there can be multiple buyers and multiple sellers. This solidarity purchasing agent system 10 allows the purchase and sale of goods between the buyer 20 and the seller 30 through a network (internet), but the payment of the goods and the delivery of the goods by the seller 30 according to the purchase request of the buyer 20 It is characterized in that it is performed directly between the 20 and the seller 30. As such, when the buyer 20 purchases the goods of the seller 30, the buyer directly deposits the goods to the seller 30 and receives the goods delivery from the seller 30 who received the payment. S; After Service) is also available.

Under the configuration as shown in FIG. 1, the operation of the transaction performed between the buyer 20 and the seller 30 may be roughly classified into two types.

Transactions according to the first form consist of S1 → S2 → S3 → S4 → S5 → S6 → S6-1 → S7 → S8 → S9.

In step S1, the solidarity purchasing agency system 10 requests the seller 30 for the item to be sold. In step S2, in response to the request, the seller 30 notifies the counterpart purchase agent information 10 provided by the counterpart purchase agent system 10, and in response, the counterpart purchase agent system 10 stores the notified item information on sale. In this state, when the buyer 20 accesses the solidarity purchasing agency system 10 in step S3 and indicates the intention to purchase, the solidarity purchasing agency system 10 provides the buyer 20 with the information on the object of sale (including differential discount information) in step S4. Done. Accordingly, the buyer 20 may search for the item he / she wants from the item information for sale, and in step S5, select the item to be purchased and indicate the intention. The purchaser 20 notifies the seller 30 of the purchased article details including information about the article to be purchased. At this time, the purchase item details may be made for only one buyer, but preferably for a plurality of buyers.

If the purchaser 20 has notified the seller 30 of the purchase article selected for purchase from the provided item information for sale, in step S6-1, the seller 30 sends a corresponding purchaser 20 to the corresponding buyer 20 according to the notification of the purchased purchase details. Contact the payment method. In step S7, if the corresponding buyer 20 deposits a price after negotiating a payment method with the seller 30, the seller 30 delivers the corresponding goods in step S8. In step S9, the buyer 20 requests after-service (A / S) for the goods delivered by the seller 30, or the seller 30 performs the after-service in response to the after-service request or periodically.

Transactions according to the second form consist of S11 → S12 → S13 → S14 → S15 → S16 → S16-1 → S17 → S18 → S19.

In step S11, the solidarity purchasing agent system 10 receives the items desired to be purchased from the buyer 20, and in step S12, the solidarity purchasing agent system 10 requests the seller 30 the items input from the buyer 20. In step S13, in response to the request, the seller 30 notifies the counterpart purchase agent information 10 provided by the counterpart purchase agent system 10, and in step S14, the counterpart purchase agent system 10 provides the buyer item 20 the target item information for sale. . Accordingly, the buyer 20 may search for the item he / she wants from the item information for sale, and in step S15, if the user selects the item to be purchased and indicates his / her intention, the solidarity purchasing agent system 10 displays the information about the buyer 20 and the step S16. The purchaser 20 notifies the seller 30 of the purchased article details including information about the article to be purchased. At this time, the purchase item details may be made for only one buyer, but preferably for a plurality of buyers.

When the purchaser 20 selects the purchase item details selected for purchase from the provided item information for sale, the seller 30 sends the corresponding purchaser 20 to the corresponding purchaser 20 in step S16-1. Contact the payment method. In step S17, if the corresponding buyer 20 deposits the price after negotiating a payment method with the seller 30, the seller 30 delivers the corresponding goods in step S18. In step S19, the buyer 20 requests post-service for the goods delivered by the seller 30, or the seller 30 performs the post-service in response to the post-service request or periodically.

Meanwhile, the solidarity purchasing agent system according to the present invention is a differential discount system that enables the purchase and sale of goods having different discount rates according to the purchasing power of buyers 20 as well as the buying and selling operations according to the above procedures. In other words, as the number of buyers who want to purchase an item increases, buyers can purchase the product at a lower price. For example, compared to purchasing one color television (TV), the purchase price is more discounted as the number of purchase demands is gradually increased such as 10s, 50s, 100s, 200s, 500s, and 1000s. This allows buyers to buy color TVs. The above case is a case where the discount width of the purchase unit price is changed when the number of purchase requests is a predetermined number. On the contrary, the discount rate of the purchase price may be changed every time the number of purchase demands of the color TV increases by 1, 5 or 10.

2 is a view showing a specific configuration of the regimental purchasing agency system as shown in FIG. This solidarity purchasing agent system allows at least one or more buyers to purchase one or more items provided from the seller through a network such as the Internet. The solidarity purchasing agent system is characterized by connecting the consumer (buyer) who wants a cheap purchase price reflecting the bulk purchasing power through the solidarity purchase and the seller who wants to sell the product in mass by electronic commerce. In other words, as the number of purchases of a particular item increases, buyers can purchase the corresponding item more cheaply.

Referring to FIG. 2, a solidarity purchasing agent system according to the present invention includes purchaser computers 200, seller computers 300, and trading computer 100. The purchaser computers 200, seller computers 300 and trading computer 100 are interconnected via a network such as the Internet to enable electronic commerce. The trading computer 100 requests the item to be sold to the seller computers 300 (step S21), and stores the data to be described later when the item information to be sold is notified from the seller computers 300 (step S22). Store in wealth. At this time, the sales computer 100 and the seller computers 300 agree on a purchase price that varies a discount rate as the number of purchases of goods increases in advance, and information on the purchase price according to the number of purchases of such goods is included in the item information for sale. .

Each of the buyer computers 200 inputs a purchase request of the buyer (step S23), and is notified of the purchase price determined by the trading computer 100 that varies the discount rate according to the number of inputs of the purchase request (step S24). That is, the selling computer 100 receives the selling target product information from the seller computers 300 and stores it in the data storage unit. When the buying request from the buyer is input, the selling computer 100 receives the selling target product information. To the seller computer 300, the purchaser details provided to the seller computer 300, which are provided to the seller computer 300, from the purchaser computers 200. You will be notified. Finally, the seller asks the corresponding buyers how to pay for the goods according to the purchased purchase details, and in response, when the corresponding buyers make a payment according to the payment method for the goods, the seller The goods will be shipped to buyers.

FIG. 3 is a diagram showing in detail the configuration of the trading computer 100 shown in FIG. 2.

Referring to FIG. 3, the trading computer 100 may include a central processing unit (CPU) 110, a data storage unit 120, a network interface 130, a read only memory (ROM) 140, and a random access memory (RAM). 150, the purchase request counting unit 160, and the purchase price determining unit 170. The CPU 110 is a component that controls the overall operation of the trading computer 100. Specifically, the CPU 110 controls the communication between the trading computer 100 and the seller computer 300 to request the item to be sold to the seller computer 300, and receives the item to be sold from the seller computer 300. In addition, the CPU 110 controls communication between the sales computer 100 and the buyer computer 200 to provide the buyer computer 300 with item information on sale when a purchase request from the buyer computer 300 is input, and to make a purchase from the provided item information. When the desired item is selected, the purchase price of the selected item is determined and the buyer computer 300 is notified.

The network interface 130 is controlled by the CPU 110 to connect the purchaser computer 200 and the seller computer 300 via a network. For this operation, the network interface 130 includes a communication port and a modem and a modulator and demodulator. The ROM 140 stores programs for the overall operation of the marketing computer 100. In particular, the ROM 140 stores a program for performing a purchase and sale operation according to a processing flow as shown in FIG. 8 between buyers and sellers according to the present invention. The RAM 150 temporarily stores data processed during the overall operation of the trading computer 100.

The purchase request counting unit 160 is controlled by the CPU 110 to count purchase requests from buyers for each item. The purchase price determining unit 170 is controlled by the CPU 110 to determine a purchase price according to the number of purchase requests for a particular item. In this case, the higher the purchase demand for a particular item, the lower the purchase price can be determined. Such a purchase price can be determined within the range in which the trading computer 100 has previously discussed with the seller computer 300.

The data storage unit 120 stores various data processed during a purchase and sale operation. The data storage unit 121, a unit price database 122 according to the number of items to be purchased, a buyer database 123, a seller database 124, and a sales database 125 It is made, including. A merchandise for sale database (DB) 121 stores information (product, model name, selling price, etc.) about the merchandise for sale provided from the seller computer 300. Unit Price According to the Number of Purchased Items DB 122 stores information on the unit price of sale according to the number of purchase items (products, number of purchases, unit price, discount rate, etc.) which have been previously negotiated with the seller computer 300. The buyer DB 123 stores information (buyer name, address, telephone number, etc.) about the buyers who bought the products available for sale through the trading computer 100. Seller DB 124 stores information (seller name, address, telephone number, etc.) about sellers selling goods through trading computer 100. The sales DB 125 stores the details of the goods sold and purchased by the trading computer 100 and the information on the commission of the product sales.

4 is a diagram illustrating an example of information stored in the merchandise DB 121 for sale shown in FIG. 3.

Referring to FIG. 4, information on a product to be sold, a model name, and a sale price may be stored in the product to be sold DB 121. For example, a 29 "color TV with a model name of STV-2000, a selling price of \ 900,000, and a discounting price of \ 795,000 may be sold.

FIG. 5 is a diagram illustrating an example of information stored in a unit price DB 122 according to the number of purchased articles shown in FIG. 3.

Referring to FIG. 5, when the number of purchases of 29 "color TVs is 10 or more (10 to 49), the unit price that buyers can purchase is 10% off the selling price (discount) of FIG. 4 from \ 715,500. When the number of purchases of 29 "color TVs is 50 or more (50 to 99), the unit price which buyers can purchase is 15% discounted from the sale price (discount) of FIG. If the number of 29 "color TVs is 100 or more (100 to 199 units), the unit price that can be purchased by the buyer is determined to be 20% off the selling price (discount) of FIG. 4 above. If the number of purchases is 200 or more (200 to 499), the unit price that buyers can purchase is determined as 595,250, which is 25% off the selling price (discount) of FIG. If the number of purchases of 29 "color TVs is 500 or more (500-999), the unit price which a buyer can purchase is 30% discounted from the sale price (discount) of FIG. If the number of purchases is 1000 or more, the unit price that buyers can purchase is determined to be \ 477,000 at a discount of 40% from the selling price (discount) of FIG.

FIG. 6 is a diagram illustrating in detail the configuration of the buyer computer 200 illustrated in FIG. 2.

Referring to FIG. 6, the purchaser computer 200 includes a CPU 210, a network interface 220, a ROM 230, a RAM 240, a key input unit 250, and a display unit 260. The CPU 210 is a component that controls the overall operation of the purchaser computer 200. Specifically, the CPU 210 controls the communication between the purchaser computer 200 and the trading computer 100 to indicate a purchase request to the trading computer 100, and provides information on the items to be sold provided by the trading computer 100 according to the purchase request. Receive. In addition, the CPU 210 notifies the trading computer 100 of the item selected by the buyer from among the item information for sale provided by the trading computer 100, and receives the purchase unit price determined for the item selected by the buyer from the trading computer 100. The CPU 210 drives a program for connecting to the trading computer 100 through a network, a so-called web browser.

The network interface 220 is controlled by the CPU 210 and connected to the trading computer 100 via a network. For this operation, the network interface 220 includes a communication port and a modem. The ROM 230 stores a program for the overall operation of the purchaser computer 200. In particular, the ROM 230 stores a program and a web browser to enable the purchaser computer 200 to perform a purchase operation according to the processing flow as shown in FIG. 8 according to the present invention. The RAM 240 temporarily stores data processed during the overall operation of the purchaser computer 200.

The key input unit 250 is implemented by a keyboard or a mouse, and can input a driving and purchase request of a web browser for accessing the trading computer 100, and allows a buyer to select an item to be purchased from the item information for sale. The display unit 260 displays various pieces of information required for the purchaser to purchase the item, such as displaying the item to be sold from the trading computer 100 to the buyer while the buyer computer 200 is connected to the trading computer 100. The display unit 260 may be a monitor of a general computer. For example, the display unit 260 may display a screen as shown in FIG. 9 to be described later.

FIG. 7 is a diagram illustrating in detail the configuration of a seller computer 300 illustrated in FIG. 2.

Referring to FIG. 7, the merchant computer 300 includes a CPU 310, a network interface 320, a ROM 330, a RAM 340, a key input unit 350, a display unit 360, and a data storage unit 370. The CPU 310 is a component that controls the overall operation of the merchant computer 300. Specifically, the CPU 310 controls the communication between the seller computer 300 and the sale computer 100 to input a request for the item to be sold from the sale computer 100, and according to the request, The information is sent to the marketing computer 100. In addition, the CPU 310 may identify the buyer and the goods desired by the buyer according to the purchase history notified by the trading computer 100. The CPU 310 drives a program for accessing the trading computer 100 through a network.

The network interface 320 is controlled by the CPU 310 and connected to the trading computer 100 through a network. For this operation, the network interface 320 includes a communication port and a modem. The ROM 330 stores a program for the overall operation of the merchant computer 300. In particular, the ROM 330 stores a program that allows the seller computer 300 to perform the selling operation according to the processing flow as shown in FIG. 8 according to the present invention. The RAM 340 temporarily stores data processed during the overall operation of the merchant computer 300.

The key input unit 350 is implemented by a keyboard or a mouse. The key input unit 350 may allow sellers to input information about items to be sold for sale. In addition, the selling unit price may be input according to the number of purchased items of each item to be sold. The display unit 360 displays a corresponding screen so that the seller can easily input various sales target product information and the selling price according to the number of purchased goods through the key input unit 350. The display unit 360 may be a monitor of a general computer.

The data storage unit 370 includes a target product DB 371 and a unit price DB 372 according to the number of purchased items. The merchandise for sale DB 371 stores information on the merchandise for sale by the seller, and the unit price DB 372 according to the number of the purchased items stores information on the unit price according to the number of the purchased items. The information on the selling unit price according to the number of purchased items is determined by prior consultation between the seller through the trading computer 100 and the seller through the seller computer 300.

8 is a view showing a processing flow for a transaction operation performed by the solidarity purchasing agent system according to the present invention. That is, FIG. 8 illustrates a processing flow according to a purchase operation performed between the purchaser computer 200 and the trading computer 100 as shown in FIG. 2, and a selling operation performed between the seller computer 300 and the trading computer 100.

Referring to FIG. 8, the trading computer 100 of FIG. 2 requests the item to be sold to the seller computer 300 in step 801. In response to the request, in operation 802, the seller computer 300 notifies the goods to be sold. The operation of requesting and notifying the object for sale performed between the trading computer 100 and the seller computer 300 may be performed once or may be performed multiple times. In addition, the notification operation of the goods to be sold may be performed in response to a request for goods to be sold from the trading computer 100, or an online updater may be performed at a preset time even without a request. The trading computer 100 stores the necessary information inside the data storage unit 120 in step 803 after performing operations 801 and 802. That is, the information about the goods for sale is stored in the item to be sold DB 121, the information about the seller is stored in the seller DB 124, and the information about the selling price according to the number of items is stored in the unit price DB 122 according to the number of items to be purchased.

After the various operations for sale are stored in the internal data storage 120 of the trading computer 100 in operation 803, the buyers purchase the computer 100 through the buyer computer 200 to purchase their desired items in step 804. You can access (homepage through the Internet). In response to the purchaser's connection, the trading computer 100 provides the selling goods information to the buyer computer 200 in step 805. The sale article information thus provided is displayed on the display unit 260 of the purchaser computer 100. Accordingly, in operation 806, the buyer may search for and select a sale item that he / she wants to purchase using the key input unit 250.

When the buyer selects the desired merchandise to purchase, the intention to purchase is transmitted to the trading computer 100 through the buyer computer 200 in step 807. The trading computer 100 counts the number of purchase requests for each item input through the plurality of buyer computers 200 in step 808 and determines the unit price of the items that the buyer can purchase. The operation of counting the number of purchase requests for each item and determining the purchase price are performed in real time by the purchase request counting unit 160 and the purchase price determining unit 170 of FIG. 3. As operation 808 is performed, the trading computer 100 notifies the purchaser computer 200 of the execution result at operation 809. That is, when the intention to purchase a specific item is displayed from the purchaser computer 200, the selling computer 100 aggregates the number of purchase requests for the specific item at that time and determines the unit price, and then the buyer computer 200 corresponding to the determined purchase price. Notify by.

9 illustrates an example of a screen displayed on the display unit 260 of the purchaser computer 200 according to the execution result of step 809. In other words, referring to FIG. 9, the number of applicants currently requesting the purchase of a 29 "color TV is 375, and in this case, the buyer is required to purchase the 29" color TV at a price of 595,250 at a discount of 25% off the sale price of 79%. You can buy it.

The trading computer 100 notifies the purchaser computer 200 of the purchase price, updates the buyer DB 123 in step 810, and purchases information (name, address, telephone number, etc.) and items that the buyer wants to purchase in step 811. Notify the seller computer 300 of the purchase history, including information about. Operations of steps 810 and 811 may be performed in real time. However, considering that the unit price becomes cheaper as the number of purchase requests for each item increases, it is preferable to perform the operations of steps 810 and 811 for a preset time period.

In operation 811, the seller computer 300 is notified of the purchase details from the sales computer 100, and the sellers may confirm the number of buyers for each of the items they sell. After the verification result, in step 812, the seller can call the buyers and ask about the payment method of the goods purchase. After the buyers receive the call from the sellers and determine the payment method of the goods purchase, the payment is made in step 813, and the sellers deliver the corresponding items to the corresponding buyers in step 814. The payment method of purchasing the item may be cash or credit card. The sellers can check whether the money is deposited in their account number when the buyers choose cash. If the buyers choose the credit card, the sellers can confirm that the money has been deposited by entering the buyer's credit card number. After the goods are delivered, the seller pays the commission for selling the product to the seller (trade computer) in step 815. The payment of the sales fee may be made in step 815 as shown in the drawing, or may be made in advance.

In the description of the present invention as described above, the discount rate of the purchased goods is 10% → 15 when the number of required purchases of the goods corresponds to a predetermined number such as 10 → 50 → 100 → 200 → 500 → 1000 An example is described in which the ratio is changed from% → 20% → 25% → 30% → 40%, and thus the selling price of the goods (goods) is determined.

On the other hand, the present invention can also be applied to the case of a joint purchasing agent system (hereinafter referred to as "percentage discount system") according to the percentage discount in which the discount rate of the purchased goods is determined in proportion to the number of purchase requests of the goods. For example, in the percentage discount system as shown in FIGS. 10 to 17 to be described later, the number of purchase requests (number of applications) of the item corresponding to the starting price of the item is 1, and the number of purchase requests of the item corresponding to the final price of the item is 1. Assuming 100, the selling price of the goods is determined by applying a percentage discount every time the purchase demand of the goods increases, and the determined selling price is notified to the consumer (buyer). The selling unit price of the article is determined according to the percentage discount rate in consideration of the number of applications, the starting price of the article, and the final price of the article. The formula for calculating a price is determined as shown in Equations 1 to 4 below. Can be obtained through

Current price = Starting price-[Current application number × (starting price-final price) / Target quantity]

Current price = Starting price-[Current application number × (starting price-final price) / Target quantity]-V

Current price = Starting price-[Current number of applications × Average purchase rate × (Starting price-Final price) / Target quantity]

Current price = Starting price-[Current application number × Average purchase rate × (Starting price-Final price) / Target quantity]-V

In <Equation 1> to <Equation 4>, the starting price means the market selling price (normal price or discount price) of the goods, and the final price means the selling price when it is assumed that the product is sold by a certain number (target quantity). do. In the following examples, the starting price is $ 795,000, the target quantity is 100, and the final price is $ 556,500. In Equations 2 and 4, V is an additional discount amount of (Y%) of the starting price per (X%) of the target quantity. For example, an additional discount of $ 7,950, which is Y = 1% of the starting price, can be obtained for every X = 25% of the target quantity. In Equation 3 and Equation 4, the average purchase rate refers to a rate at which the purchaser finally purchases by applying for the purchase of the goods and depositing the price for the applied goods. As such, the average purchase rate is intended to consider a case in which the purchase of the goods is abandoned because the buyer does not deposit the price for the requested goods after applying for the purchase of the goods. Therefore, the average purchase rate is also defined as {1-average purchase abandonment rate}. In the following, the case where the average purchase rate is 70% will be described as an example.

FIG. 10 is a diagram illustrating another example of information stored in a unit price database 122 according to the number of purchased items shown in FIG. 3. This example shows an example in which the present price provided by the percentage discount system is obtained according to the present price calculation formula shown in Equation 1 above.

Referring to FIG. 10, the starting price is $ 795,000 and the final price is $ 556,500. As the number of requests for goods increases, it can be seen that the percent discount is applied to reduce the present price, the selling price of the goods. If the number of items requested is 1, the current price is set at $ 792,615 with a 1% discount to the target quantity for the starting price of $ 795,000. According to Equation 1, the discount rate of 1% is determined as (starting price-final price) / target quantity = (795,000-556,500) / 100 = $ 2385, the current price is the starting price-[current application number × (starting price-final price) ) / Target quantity] = $ 795,000- (1 × 2385) = $ 792,615. If Equation 1 is applied equally and the number of items applied for is 2, the current price is determined to be $ 790,230, if the number of items is 3, it is determined to be $ 787,845, and the number of items to be applied is 4. Is set at $ 785,460. If the number of items is 5, it is set at $ 783,075. If the number of items is 10, the current price is determined to be $ 771,150; if the number of items is 25, it is determined to be $ 735,375; if the number of items is 50, it is determined to be $ 675,750. If the number of applications is 58, it is determined as $ 656,670. If the number of items is 75, it is determined as $ 616,125. If the number of items is 99, it is determined as $ 558,885. If the number of items requested is 100, the current price is set at $ 556,500. When the number of items requested is 100, the current price is determined to be the final price of $ 556,500. If the number of items is not applied, the starting price is determined as the present price. Whenever the number of items applied increases, the present price is determined at a 1% discount based on the starting price.

11 is a view showing another example of a screen displayed on the display unit 260 of the buyer computer during the operation according to the present invention.

The example shown in FIG. 11 corresponds to a case where the number of applications for the current item is 58, that is, the number of applicants who want to purchase a 29 "color TV is 58. The purchase request counting unit 160 of the trading computer 100 shown in FIG. The purchase request is counted from the computer 200. The CPU 110 determines the number of applicants from the purchase request aggregated by the purchase request counting unit 160, and then refers to the information shown in FIG. 10 stored in the unit price database 122 according to the number of the purchased items. The current price (decision price) information corresponding to the current number of applicants (number of applications) is read in. The purchase price determination unit 170 determines the purchase price, that is, the current price according to the current price information read by the CPU 110. By providing the current price determined by the purchase price determination unit 170 to the corresponding buyer computer 200 through the network interface 130, the buyer computer On the display 260 of the display 200 so that also the information about the item determined by the current value and the buyer application.

Referring to FIG. 11, the buyer can see that the specification (SPEC) of the item he wants to purchase is a 29 "color TV having a flat plane, a high resolution, and a PIP function. The normal price of this item is $ 900,000, and the discount price Is $ 795,000 and the number of applicants is 58, so the current price is $ 656,670. The applicant can also see how the current price is calculated as $ 656,670, ie the current price is 795,000-[58 × 238,500 / 100], the applicant can know that the number of applicants is 58, so the current price is determined to be $ 656,670, such as the information stored in the unit price database 122 according to the number of purchased items shown in FIG. Applicant may be required to purchase the 29 "color TV for $ 656,000 in cuts of less than one hundred units.

FIG. 12 is a diagram illustrating another example of information stored in a unit price database 122 according to the number of purchased items shown in FIG. 3. This example shows an example in which the present price provided by the percentage discount system is obtained according to the present price calculation formula shown in Equation 2 above.

Referring to FIG. 12, the starting price is $ 795,000 and the final price is $ 556,500. As the number of requests for goods increases, it can be seen that the percent discount is applied to reduce the present price, the selling price of the goods. At this time, the amount equal to 1% of the starting price per 25% of the target quantity is discounted along with the percentage discount. In this case, the target quantity is 100, so a discount of $ 7,950, which is 1% of the starting price of $ 795,000 per 25 vehicles, is discounted. Accordingly, if the number of items requested is 1, a 1% discount is applied to the starting price of $ 795,000 and the current price is set to $ 792,615. According to Equation 2, the discount rate of 1% is determined as (starting price-final price) / target quantity = (795,000-556,500) / 100 = $ 2385, the current price is the starting price-[current application number × (starting price-final price) ) / Target quantity] -V = $ 795,000- (1 × 2385) -0 = $ 792,615 If Equation 2 is applied equally and the number of items applied for is 2, the current price is determined to be $ 790,230. If the number of items is 3, it is determined to be $ 787,845. Is set at $ 785,460. If the number of items is 5, the price is $ 783,075. If the number of items is 10, the current price is $ 771,150.

On the other hand, if the number of items requested is 25, an additional discount rate V ($ 7,950) is applied, and the current price is set at $ 727,425 ($ 735,375-$ 7,950 in FIG. 10), and the additional discount rate is applied even when the number of items is 50. V ($ 15,900) is applied and the current price is set at $ 659,850 ($ 675,750- $ 15,900 in FIG. 10). If the number of items is 58, an additional discount of V ($ 15,900) is applied and the current price is $ 640,770 ($ 656,670- $ 15,900 in Figure 10). If the number of items requested is 75, an additional discount rate V ($ 23,850) is applied, and the current price is set at $ 592,275 ($ 616,125-$ 23,850 in FIG. 10). The current price is set at $ 535,035 ($ 558,885- $ 23,850 in Figure 10). If the number of items requested is 100, an additional discount of V ($ 31,800) is applied and the current price is determined from the final price of $ 556,500 to $ 524,700 with the additional discount.

FIG. 13 is a diagram illustrating another example of a screen displayed on the display unit 260 of a buyer computer during an operation according to the present invention.

The example shown in FIG. 13 corresponds to a case where the number of applications for the current item is 58, that is, the number of applicants who want to purchase a 29 "color TV is 58. The purchase request counting unit 160 of the trading computer 100 shown in FIG. The purchase request is counted from the computer 200. The CPU 110 determines the number of applicants from the purchase request aggregated by the purchase request counting unit 160, and then refers to the information shown in FIG. 10 stored in the unit price database 122 according to the number of the purchased items. The current price (decision price) information corresponding to the current number of applicants (number of applications) is read in. The purchase price determination unit 170 determines the purchase price, that is, the current price according to the current price information read by the CPU 110. By providing the current price determined by the purchase price determination unit 170 to the corresponding buyer computer 200 through the network interface 130, the buyer computer On the display 260 of the display 200 so that also the information about the item determined by the current value and the buyer application.

Referring to FIG. 13, the buyer can see that the specification (SPEC) of the item he wants to purchase is a 29 "color TV with a flat plane, high resolution, and PIP function. The normal price of this item is $ 900,000, and the discount price Is $ 795,000 and the number of applicants is 58, so we can see that the current price is $ 640,770. The applicant can also see how the current price was calculated as $ 640,770. The applicant can know that the price calculated by × 238,500 / 100]-V} The applicant can also know from the graph that the current price is additionally discounted every 25 units. Therefore, the current price is determined to be $ 640,770 based on the information stored in the unit price database 122 according to the number of purchased items shown in FIG. La TV can also be processed to purchase an amount of less than baekdanwi truncated ₩ 656,000.

FIG. 14 is a diagram illustrating still another example of information stored in a unit price database 122 according to the number of purchased items shown in FIG. 3. This example shows an example in which the present price provided by the percentage discount system is obtained according to the present price calculation formula shown in Equation 3 above.

Referring to FIG. 14, the starting price is $ 795,000 and the final price is $ 556,500. As the number of items applied increases, it can be seen that the present price, which is the selling price of the goods, is determined to be reduced by applying a percentage discount rate and an average purchase rate (70%). If the number of items requested is 1, the current price is set at $ 793,331 for a starting price of $ 795,000, with a 1% discount to the target quantity and an average purchase rate. According to Equation 3, the discount rate of 1% is determined as (starting price-final price) / target quantity = (795,000-556,500) / 100 = $ 2385, and the current price is the starting price-[current application number × average purchase rate × ( Starting price-final price / target quantity] = $ 795,000- (1 × 0.7 × 2385) = $ 793,331. If Equation 3 is applied equally and the number of items applied for is 2, the current price is determined to be $ 791,661, if the number of items is 3, it is determined to be $ 789,992, and the number of items to be applied is 4. The price is determined to be $ 788,322. If the number of items is 5, the price is $ 786,653. If the number of items is 10, the current price is $ 778,305. If the number of items is 25, it is determined as $ 753,263. If the number of items is 50, it is determined as $ 711,525. If the number of items is 58, it is determined as $ 698,169. If it is 75, it will be decided at $ 669,788 and if it is 99, it will be decided at $ 629,720. If the number of items requested is 100, the current price is set at $ 628,050, with the final purchase price at $ 556,500.

15 is a view showing another example of a screen displayed on the display unit 260 of the buyer computer during the operation according to the present invention.

The example shown in FIG. 15 corresponds to a case where the number of applications for the current item is 58, that is, the number of applicants who want to purchase 29 "color TV is 58. The purchase request counting unit 160 of the trading computer 100 shown in FIG. The purchase request is counted from the computer 200. The CPU 110 determines the number of applicants from the purchase request aggregated by the purchase request counting unit 160, and then refers to the information shown in FIG. 10 stored in the unit price database 122 according to the number of the purchased items. The current price (decision price) information corresponding to the current number of applicants (number of applications) is read in. The purchase price determination unit 170 determines the purchase price, that is, the current price according to the current price information read by the CPU 110. By providing the current price determined by the purchase price determination unit 170 to the corresponding buyer computer 200 through the network interface 130, the buyer computer On the display 260 of the display 200 so that also the information about the item determined by the current value and the buyer application.

Referring to FIG. 15, the buyer can see that the specification (SPEC) of the item he wants to purchase is a 29 "color TV with a flat plane, high resolution, and PIP function. The normal price of this item is $ 900,000, and the discount price Is $ 795,000 and the number of applicants is 58, so we can see that the current price is $ 698,169. The applicant can also see how the current price was calculated as $ 698,169, that is, the current price is 795,000-[58 × The applicant can know that the price is calculated by the average purchase rate (= 0.7) × 238,500 / 100], since the number of applicants is 58, the current price according to the information stored in the unit price database 122 according to the number of purchased items shown in FIG. Is determined to be $ 698,169, but in this case, the applicant may choose to purchase the 29 "color TV at $ 656,000, which is cut off by a hundred units.

FIG. 16 is a diagram illustrating another example of information stored in a unit price database 122 according to the number of purchased items shown in FIG. 3. This example shows an example in which the present price provided by the percentage discount system is obtained according to the present price calculation formula shown in Equation 4.

Referring to FIG. 16, the starting price is $ 795,000 and the final price is $ 556,500. As the number of items applied increases, it is determined that the present price, which is the selling price of the goods, is reduced by applying a percentage discount rate and an average purchase rate (= 70%). At this time, the amount equal to 1% of the starting price per 25% of the target quantity is discounted along with the percentage discount. In this case, the target quantity is 100, so a discount of $ 7,950, which is 1% of the starting price of $ 795,000 per 25 vehicles, is discounted. Accordingly, if the number of items requested is 1, the current price is set at $ 793,331, with a 1% discount to the target quantity and an average purchase rate for the starting price of $ 795,000. According to Equation 4, the discount rate of 1% is determined as (starting price-final price) / target quantity = (795,000-556,500) / 100 = $ 2385, and the current price is the starting price-[current application number × (average purchase rate) × (starting price-final price) / target quantity]-V = $ 795,000-(1 × 0.7 × 2385)-0 = $ 793,331 If Equation 4 is applied equally and the number of items applied for is 2, the current price is determined to be $ 791,661, if the number of items is 3, it is determined to be $ 789,992, and the number of items to be applied is 4. The price is determined to be $ 788,322. If the number of items is 5, the price is $ 786,653. If the number of items is 10, the current price is $ 778,305.

On the other hand, if the number of items requested is 25, an additional discount rate V ($ 7,950) is applied, and the current price is determined to be $ 745,313 ($ 753,263-$ 7,950 in FIG. 14). V ($ 15,900) is applied and the current price is set at $ 695,625 (711,525 to $ 15,900 in Figure 14). If the number of items requested is 58, an additional discount of V ($ 15,900) is applied and the current price is $ 682,269 ($ 698,169 to $ 15,900 in Figure 14). If the number of items requested is 75, an additional discount rate V ($ 23,850) is applied, and the current price is determined to be $ 645,938 ($ 669,788- $ 23,850 in FIG. 14). The current price is determined to be $ 605,870 ($ 629,720- $ 23,850 in Figure 14). If the number of items requested is 100, an additional discount of V ($ 31,800) is applied, and the current price is determined from the final price of $ 556,500 to $ 596,250 with the additional discount rate and average purchase rate.

17 is a view showing another example of a screen displayed on the display unit 260 of the buyer computer during the operation according to the present invention.

The example shown in FIG. 17 corresponds to a case where the number of applications for the current item is 58, that is, the number of applicants who want to purchase 29 "color TV is 58. The purchase request counting unit 160 of the trading computer 100 shown in FIG. The purchase request is counted from the computer 200. The CPU 110 determines the number of applicants from the purchase request aggregated by the purchase request counting unit 160, and then refers to the information shown in FIG. 10 stored in the unit price database 122 according to the number of the purchased items. The current price (decision price) information corresponding to the current number of applicants (number of applications) is read in. The purchase price determination unit 170 determines the purchase price, that is, the current price according to the current price information read by the CPU 110. By providing the current price determined by the purchase price determination unit 170 to the corresponding buyer computer 200 through the network interface 130, the buyer computer On the display 260 of the display 200 so that also the information about the item determined by the current value and the buyer application.

Referring to FIG. 17, the buyer can see that the specification (SPEC) of the item he wants to purchase is a 29 "color TV having a flat plane, a high resolution, and a PIP function. Is $ 795,000 and the number of applicants is 58, so we can see that the current price is $ 682,269. The applicant can also see how the current price was calculated as $ 682,269. The applicant can know that the price is calculated by × (average purchase rate) × 238,500 / 100]-V. Also, the applicant can know that the present price is additionally discounted every 25 units. Is 58, so the current price is $ 682,269 based on the information stored in the unit price database 122 according to the number of purchased items shown in FIG. You can also treat the TV to buy at $ 682,000, cut off by a hundred.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. For example, in the detailed description of the present invention, the article to be sold is described as 29 "color TV, but not only when the product specifications are the same, such as various home appliances, cars, food and beverages including color TV, but also clothes, shoes, furniture, and fruit. The present invention may also be applied to cases where there is a difference in product specifications, etc. In addition, the present invention may be applied to a case where a product to be sold is not only a spot but also a gift certificate. Although the discount rate of goods is changed from 10% → 15% → 20% → 25% → 30% → 40% as an example or a change to a percentage discount, this discount rate is explained by consultation between seller and seller. It can be determined in an appropriate ratio, and also in the detailed description of the present invention corresponds to the number of applications of the article according to the percent discount In the present invention, the present price is previously calculated by the present price calculation formula and stored in the database, but the present invention stores only the relationship of the starting price, the final price and the number of applications in the database of the trading computer. As the purchase request is aggregated by the purchase request aggregation unit, the CPU reads information on the relationship between the starting price, the final price, and the number of applications stored in the database, and provides the read information to the purchase price determination unit to provide the purchased price determination unit. The same may be applied to an example in which the present price is calculated using the provided information and the calculated present price is provided to the corresponding buyer computer, in this case, the purchase price determining unit described in Equations 1 to 3 described in the detailed description of the present invention. Save the calculation formula as shown in Equation 4, Purchasing unit price is determined according to the formula, therefore, the scope of the present invention should not be limited to the embodiments described, but should be determined by the scope of the claims to be described later and equivalents thereof.

As described above, in the present invention, when consumers and sellers purchase and sell goods through electronic commerce, the consumers directly pay the sellers and the sellers directly deliver the corresponding goods to the consumers and the sellers. There is an advantage that allows them to buy and sell goods with confidence. In addition, the present invention by using the advantages of the Internet that moves fast and efficiently by acting as a solidarity purchase in the cyber space of consumers with a willingness to purchase the same type of goods, the price component by the mass sales profit, the logistics cost of the seller, the distribution margin reduction Has the advantage of being turned into a direct benefit to the consumer.

Claims (28)

A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the buyers with goods to be sold by the seller; (B) informing the seller of details of purchase items selected by the buyer for purchase from the provided item information for sale; (C) the seller inquiring about the payment method of purchasing the goods to the corresponding buyers according to the notified purchase item details; (D) the corresponding buyers depositing the price according to the purchase method of goods purchase; And (e) delivering the corresponding goods to the corresponding buyers for whom the seller has deposited the money. The method of claim 1, wherein (a) comprises: Requesting the seller to sell the article; Storing the object of sale information provided by the seller in response to the request; And providing the goods for sale to the buyers in response to the purchase intention of the buyers. The method of claim 1, wherein (a) comprises: Receiving items to be purchased from the buyers; Requesting the input items to the seller; And in response to the request, providing the buyer with the goods for sale, which are provided by the seller. In a solidarity purchasing agent system that allows one or more buyers to purchase one or more items from a seller over a network: Seller computer; At least one or more buyer computers; A data storage unit for storing goods information for sale sold by the seller; The goods to be received from the seller computer, stored in the data storage unit, the goods to be sold information to the buyer computers, and the goods selected by the buyers to purchase from the goods to be sold; And a trading computer including a central processing unit that receives information about the information from the purchaser computers and informs the seller computer of a purchase item detail including information on the selected item; When the seller inquires the corresponding buyers the payment method of the purchase of the goods according to the notified purchase item details, and in response, the corresponding buyers deposit the money according to the payment method of the goods purchase. Solidarity purchasing agency system, characterized in that to deliver the goods to the buyers. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase requests according to Equation 5 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Transaction method comprising a process. Current price = Starting price-[Current application number × (starting price-final price) / Target quantity] Here, the starting price is the selling price of the item determined when there is no purchase request, and the final price is the selling price when it is assumed that the item is sold by a predetermined target quantity. The method of claim 5, wherein the (a) process, Requesting the seller a discount of a sale price according to the number of items to be sold and the number of items purchased; In response to the request, receiving and storing the information on the object of sale provided by the seller; And providing the goods for sale to the buyers in response to the purchase intention of the buyers. The method of claim 5, wherein the determination of the selling price for each item according to the number of purchase requests is processed in real time, and the determined selling price for each item is notified to the corresponding buyers in real time. 8. The method of claim 7, wherein the determined selling price for each item is displayed on the computers of the corresponding buyers so that the buyers can visually confirm. In a solidarity purchasing agent system that allows one or more buyers to purchase one or more items from a seller over a network: A seller computer that stores information about items sold by the seller; Buyer computers for entering a purchase intention from each of the buyers; Including a trading computer; The trading computer; Requesting the seller's computer information on the item to be sold, including information on the items to be sold and information on a sale price having a discount width that varies depending on the number of purchases of each item, Providing the target product information to buyer computers requesting the purchase; When the purchase intention is displayed according to the selection of the purchased goods from the purchaser computers, the number of purchase requests for each item is counted and confirmed, and the selling unit price for each item according to the purchase demand is determined according to Equation 6 below. Notify the relevant buyers of the determined selling price for each item, Informing the seller of purchased item detail information including the number of purchase requests for each item and information on buyers requesting the purchase, so that the seller can sell the corresponding goods to the corresponding buyers. Solidarity purchasing agency system, characterized in that. Current price = Starting price-[Current application number × (starting price-final price) / Target quantity] Here, the starting price is the selling price of the item determined when there is no purchase request, and the final price is the selling price when it is assumed that the item is sold by a predetermined target quantity. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase requests according to Equation 7 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Process; (D) the seller inquiring a corresponding purchaser about how to pay the item according to the notified purchase item details; (E) the corresponding buyers depositing money according to a purchase method of goods purchase; And (f) delivering the corresponding goods to the corresponding buyers for whom the seller has deposited the money. Current price = Starting price-[Current application number × (starting price-final price) / Target quantity] Here, the starting price is the selling price of the item determined when there is no purchase request, and the final price is the selling price when it is assumed that the item is sold by a predetermined target quantity. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase requests according to Equation 8 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Transaction method comprising a process. Current price = Starting price-[Current application number × (starting price-final price) / Target quantity]-V Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. Additional discount to say. The method of claim 11, wherein the (a) process, Requesting the seller a discount of a sale price according to the number of items to be sold and the number of items purchased; In response to the request, receiving and storing the information on the object of sale provided by the seller; And providing the goods for sale to the buyers in response to the purchase intention of the buyers. The transaction method of claim 11, wherein the determination of the selling price per item according to the number of purchase requests is processed in real time, and the determined selling price per item is notified to the corresponding buyers in real time. The method of claim 13, wherein the determined selling price for each item is displayed on the computers of the corresponding buyers so as to be visually confirmed by the buyers. In a solidarity purchasing agent system that allows one or more buyers to purchase one or more items from a seller over a network: A seller computer that stores information about items sold by the seller; Buyer computers for entering a purchase intention from each of the buyers; Including a trading computer; The trading computer; Requesting the seller's computer information on the item to be sold, including information on the items to be sold and information on a sale price having a discount width that varies depending on the number of purchases of each item, Providing the target product information to buyer computers requesting the purchase; When the purchase intention is displayed according to the selection of the purchased goods from the purchaser computers, the number of purchase requests for each item is counted and confirmed, and the selling price for each item according to the number of the purchase requests is determined according to Equation 9 below. Notify the relevant buyers of the determined selling price for each item, Informing the seller of purchased item detail information including the number of purchase requests for each item and information on buyers requesting the purchase, so that the seller can sell the corresponding goods to the corresponding buyers. Solidarity purchasing agency system, characterized in that. Current price = Starting price-[Current application number × (starting price-final price) / Target quantity]-V Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. Additional discount to say. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase requests according to Equation 10 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Process; (D) the seller inquiring a corresponding purchaser about how to pay the item according to the notified purchase item details; (E) the corresponding buyers depositing money according to a purchase method of goods purchase; And (f) delivering the corresponding goods to the corresponding buyers for whom the seller has deposited the money. Current price = Starting price-[Current application number × (starting price-final price) / Target quantity]-V Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. Additional discount to say. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for the purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase demands according to Equation 11 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Transaction method comprising a process. Current price = Starting price-[Current number of applications × Average purchase rate × (Starting price-Final price) / Target quantity] Here, the starting price is the selling price of the item determined when there is no purchase request, and the final price is the selling price when it is assumed that the item is sold by a predetermined target quantity. The method of claim 17, wherein the step (a), Requesting the seller a discount of a sale price according to the number of items to be sold and the number of items purchased; In response to the request, receiving and storing the information on the object of sale provided by the seller; And providing the goods for sale to the buyers in response to the purchase intention of the buyers. 18. The method of claim 17, wherein the determination of the selling price for each item according to the number of purchase requests is processed in real time, and the determined selling price for each item is notified to the corresponding buyers in real time. 20. The method of claim 19, wherein the determined selling price for each item is displayed on the computers of the corresponding buyers so as to be visually confirmed by the buyers. In a solidarity purchasing agent system that allows one or more buyers to purchase one or more items from a seller over a network: A seller computer that stores information about items sold by the seller; Buyer computers for entering a purchase intention from each of the buyers; Including a trading computer; The trading computer; Requesting the seller's computer information on the item to be sold, including information on the items to be sold and information on a sale price having a discount width that varies depending on the number of purchases of each item, Providing the target product information to buyer computers requesting the purchase; When the purchase intention according to the selection of the purchased goods is displayed from the purchaser computers, the number of purchase requests for each item is counted and confirmed, and the selling price per item according to the number of the purchase demands is determined according to Equation 12 below. Notify the relevant buyers of the determined selling price for each item, Informing the seller of purchased item detail information including the number of purchase requests for each item and information on buyers requesting the purchase, so that the seller can sell the corresponding goods to the corresponding buyers. Solidarity purchasing agency system, characterized in that. Current price = Starting price-[Current number of applications × Average purchase rate × (Starting price-Final price) / Target quantity] Here, the starting price is the selling price of the item determined when there is no purchase request, and the final price is the selling price when it is assumed that the item is sold by a predetermined target quantity. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase requests according to Equation 13 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Process; (D) the seller inquiring a corresponding purchaser about how to pay the item according to the notified purchase item details; (E) the corresponding buyers depositing money according to a purchase method of goods purchase; And (f) delivering the corresponding goods to the corresponding buyers for whom the seller has deposited the money. Current price = Starting price-[Current number of applications × Average purchase rate × (Starting price-Final price) / Target quantity] Here, the starting price is the selling price of the item determined when there is no purchase request, and the final price is the selling price when it is assumed that the item is sold by a predetermined target quantity. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase requests according to Equation 14 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Transaction method comprising a process. Current price = Starting price-[Current application number × Average purchase rate × (Starting price-Final price) / Target quantity]-V Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. Additional discount to say. The method of claim 23, wherein the (a) process, Requesting the seller a discount of a sale price according to the number of items to be sold and the number of items purchased; In response to the request, receiving and storing the information on the object of sale provided by the seller; And providing the goods for sale to the buyers in response to the purchase intention of the buyers. 25. The method of claim 24, wherein the determination of the selling price for each item according to the number of purchase requests is processed in real time, and the determined selling price for each item is notified to the corresponding buyers in real time. 26. The method of claim 25, wherein the determined selling price for each item is displayed on a computer of the corresponding buyer so that the buyer can visually confirm. In a solidarity purchasing agent system that allows one or more buyers to purchase one or more items from a seller over a network: A seller computer that stores information about items sold by the seller; Buyer computers for entering a purchase intention from each of the buyers; Including a trading computer; The trading computer; Requesting the seller's computer information on the item to be sold, including information on the items to be sold and information on a sale price having a discount width that varies depending on the number of purchases of each item, Providing the target product information to buyer computers requesting the purchase; When the purchase intention according to the selection of the purchased goods is displayed from the purchaser computers, the number of purchase requests for each item is counted and confirmed, and the selling price per item according to the number of the purchase requests is determined according to Equation 15 below. Notify the relevant buyers of the determined selling price for each item, Informing the seller of purchased item detail information including the number of purchase requests for each item and information on buyers requesting the purchase, so that the seller can sell the corresponding goods to the corresponding buyers. Solidarity purchasing agency system, characterized in that. Current price = Starting price-[Current application number × Average purchase rate × (Starting price-Final price) / Target quantity]-V Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. Additional discount to say. A method of trading a purchasing agent system comprising a computer that allows at least one or more buyers to purchase over a network one or more items provided from a seller: (A) providing the goods for sale to the buyer, the information on the goods sold by the seller and information on the selling price having a discount width that varies depending on the number of purchases of the goods; The purchaser counts and confirms the number of purchase requests for each item selected by the buyer for the purchase from the provided item information for sale, and determines the selling price for each item according to the number of purchase requests according to Equation 16 below. (B) informing the corresponding buyers of the selling price per item; (C) enabling the seller to sell the corresponding goods to the corresponding buyers by notifying the seller of the purchase item detail information including the number of purchase requests for each item and information on the buyers requesting the purchase; Process; (D) the seller inquiring a corresponding purchaser about how to pay the item according to the notified purchase item details; (E) the corresponding buyers depositing money according to a purchase method of goods purchase; And (f) delivering the corresponding goods to the corresponding buyers for whom the seller has deposited the money. Current price = Starting price-[Current application number × Average purchase rate × (Starting price-Final price) / Target quantity]-V Here, the starting price is the selling price of the goods determined when there is no demand for purchase, and the final price is the selling price assuming that the goods are sold by a predetermined target quantity, and V is the Y% of the starting price for every X% of the target quantity. Additional discount to say.