KR20010016168A - Collective purchasing method utilizing purchasing probability display means and the system of the same - Google Patents

Abstract

PURPOSE: A method and system for joint purchasing in purchasing probability displaying method are provided to enlarge a participation of a custom and reinforce concentration of purchasing by enabling a customer to apply for purchasing anytime in the wanted price out of the requested purchasing prices displayed on a web site during joint purchasing period. CONSTITUTION: A customer(100) connects to a web page(201) managed by a web server(200) which is a joint purchasing operator through a wire/wireless web browser(110), and joins to the membership and registers one's ID and password(120). If a customer is joined to the membership, the joint purchasing operator(200) stores information to a customer member personal station relating information database(203). If a seller(300) demands a purchasing agency with offering goods information about the own goods, the joint purchasing operator(200) decides a joint purchasing period, the requested purchasing prices and a purchasing probability calculating function formula etc. by consultation to the seller(300), and registers the goods information in goods catalogue DB(206) and a seller DB(209) and the purchasing probability calculating function formula. The registrated goods are displayed as joint purchasing goods to the web page(201), and constructed order condition DB per a current joint purchasing goods.

Description

Collective purchasing method utilizing purchasing probability display means and the system of the same}

The present invention relates to a joint procurement method and a system of purchasing probability notation method of providing a buyer with the benefit of price discount for mass purchase by aggregating the purchasing power of a consumer using the Internet.

The existing joint purchase method using the Internet includes 1) the traditional joint purchase method that posts a joint purchase product on the Internet, collects a certain number of purchases and supplies the product at a regularly discounted price, and 2) joint purchase purchase. As the number increases, the method of receiving the joint purchase participation application at the selling price according to the number of orders up to now (MobShop.com method) in the sales condition in which the discount price of the sales increases step by step (3), the number of joint purchase purchases As the price increases, it can be classified as a method of receiving a joint purchase participation application (Mercata.com method) by having consumers set their own desired price for purchase under the condition of selling price.

In the traditional joint purchase method, when a joint purchase operator negotiates with the seller in advance and decides to purchase a certain number of purchases over a certain size, the product is offered at a regularly discounted price. It is a method of providing products at a regularly discounted price by collecting the number of purchases over a certain size within a predetermined period.

1 is a flowchart illustrating a process of joint purchase in a traditional joint purchase method using the Internet. When a consumer connects to the co-purchase operator web server (step 1010), searches for various co-purchase products and selects the co-purchase product they want to purchase (step 1020), product / price information and co-purchase are established. Information related to the corresponding joint purchase products such as the minimum order number, the current order number, and the selling price is displayed on the screen (step 1030). At this time, if you want to participate in the joint purchase and purchase the product (step 1040), the consumer enters his order number and personal information (step 1050), and the web server modifies the current number of joint purchases and the participant DB accordingly. (Step 1060). In this process, when the co-purchase deadline ends (step 1070), and the final order count exceeds the minimum number of orders for the co-purchase (step 1080), the web server sends a co-purchase establishment message to the co-purchase participants. You will be asked to pay the bill while sending it (step 1090). After the consumer pays the purchase price of the joint purchase (step 1100), the web server sends a product after checking whether the purchase price is paid (step 1110).

On the other hand, if the consumer does not intend to purchase the co-purchased product searched by the user (step 1040), if the consumer intends to continue the search of the co-purchase product (step 1120), the search operation is continued, and if there is no intention to search (step 1120). End the joint purchase.

Traditional co-purchasing method has the advantage of obtaining a larger discount from the seller by forming a large purchasing power by gathering individual buyer's demand which could not get enough discount from the seller due to limited purchasing power.

Nevertheless, the traditional joint purchase method provides a discount to the buyer through a certain amount of purchasing power, but the disadvantage is that even if the purchasing power is gathered more than a certain amount, additional discount is not provided to the buyer. That is, for example, if a joint order of ten or more A company laptops is provided at 2.7 million won, which is a 10% discount from the general consumer price of 3 million won, even if the co-purchase operator and seller agree, the number of co-purchase orders is 25. The laptop will be provided for 2.7 million won in advance, and will not receive additional discounts based on the minimum number of 10 orders and 15 additional orders.

In addition, in the conventional joint purchase method, if the number of orders falls short of the minimum number of orders agreed with the seller, the joint purchase itself is not established, and the cost of the trial is incurred for the consumers who have waited for the order for the joint purchase. That is, for example, in a joint purchase of a company A with a minimum order of 10, if the number of orders is only 9 during the joint purchase period, the joint purchase itself is not established, and consumers who participated in the joint purchase and waited for the product purchase until then You will be penalized for not buying it on time. As a result, the participation rate of consumers is decreased, the participation period is delayed as the operator increases the joint purchase period to secure the minimum number of orders while the consumer participation is low, and the uncertainty of the establishment of the joint purchase transaction becomes higher. It is bringing a vicious cycle that becomes more reluctant to participate.

It is MobShop.com's co-purchasing method that suggests different discount prices by order number so that the price discount increases as the number of co-purchase orders increases. MobShop.com's joint purchase method is currently in Korea, samsungauction.com's joint purchase method, auction.co.kr's joint purchase method, my09.com's sliding joint purchase method, baz.co.kr's BAZ joint purchase method, dasamoa It is being actively used as a synergy joint purchase method of .com.

Figure 2 is a flow chart illustrating a joint purchase process in the MobShop.com joint purchase method. When a consumer connects to the co-purchase operator web server (step 2010), searches for various co-purchase products and selects the co-purchase product they want to purchase (step 2020), the product / price information and co-purchase are established. Information related to the corresponding joint purchase products such as the minimum order number, the order price for each order number, the current order number and the current sale price is displayed on the screen (step 2030).

At this time, if you want to participate in the joint purchase and purchase the product (step 2040), the consumer enters his or her order number and personal information (step 2050), and accordingly, the web server adds a new order number to the previous order number. If the combined cumulative order number exceeds the step-by-step order number (step 2060), the existing selling price is modified to the new selling price and the changed co-purchase information is reprinted on the website (step 2070). On the other hand, if the cumulative order number does not exceed the step-by-step order number range (step 2060), the web server maintains the existing selling price at the current selling price (step 2130).

If the joint purchase deadline ends (step 2080), the final purchase price along with the joint purchase end information is sent to the joint purchase participants by e-mail or instant messenger (step 2090), and the joint purchase participant is released to the seller. After providing the information and requesting the purchase of the joint purchase product (step 2100), and after the product is confirmed that the credit card provider requests the approval of the credit card payment related to the joint purchase (step 2110). On the other hand, if the joint purchase deadline is not finished (step 2080), and if the number of additional joint purchase orders further increases (step 2140), the process returns to step 2060.

If the consumer is not willing to purchase the co-purchased product (step 2040), but the consumer is willing to continue the co-purchase search (step 2120), the search will continue, but if there is no additional search intention (2120). Step) End the joint purchase.

In MobShop.com's joint purchase method, the web server, which is the co-purchase operator, negotiates with the seller the differential discount price that can be provided according to the number of the co-purchase orders, and then the minimum number of orders for the joint purchase to be established on the website. According to the number of orders, discount price will be increased in stages, and joint purchase participants will be recruited at the current selling price which can be provided according to the number of orders so far. After that, if the selling price decreases due to the increase in the number of orders, all buyers who previously participated in the joint purchase are offered a discount to purchase the product at the same final discounted selling price.

In other words, if you buy a company A laptop jointly through MobShop.com's co-purchase method, the web server will consult with the seller if the co-purchase order number is from 5 to 9, which is the minimum unit. With the sales condition that it is 6% discounted to 2,280,000 won, 10 to 19, 10% discounted to 2.7 million won, and 20 or more, 15% discounted to 2.25 million won, the number of orders so far is 8 It will be sold for 2.28 million won and will be posted on the website until the deadline for joint purchase. Then, if a consumer is willing to purchase even at the current selling price of 2.28 million won, he or she will apply for a joint purchase. After that, the more people join the joint purchase, the greater the discount will be given to them. Encourage participation (MobShop.com's Click & Tell feature).

On the other hand, a consumer who wants to purchase at 255 million won, which is lower than the current selling price of 2.28 million won, suspends the co-purchase participation itself or asks the web server to notify the user when the increase in the co-purchase increases and the selling price drops to 2.25 million won. (MobShop.com's Buyer Flash feature).

The problem with the MobShop.com co-purchase method is who will apply for a purchase at a relatively high selling price at the beginning of the co-purchase. That is, even if the number of joint purchase orders increases later, even if the same discount benefits are obtained, the consumer does not participate in the joint purchase at a relatively high selling price at the beginning of the joint purchase, even though the price decline is uncertain. to be. As a result, the participation rate decreases at the beginning of the joint purchase, and the joint purchase period is lengthened to increase the number of orders.

To overcome this problem, a feature added to the MobShop.com co-purchase method is a purchase reservation order at the desired price (MobShop.com's Save a Spot feature). At present, MobShop.com's Save a Spot function has been filed in Korea (99-51540) by buybus.com as a price-selective joint purchase.

Figure 3 is a flow chart illustrating a joint purchase process in the joint purchase method using the Save a Spot (MobShop.com). When the consumer selects the desired selling price from the order price of the joint purchase product (step 3010) and inputs the number of the joint purchase reservation order and the credit card payment information (step 3020), the web server according to the selling price step The order number DB in which the actual order number and the reserved order number are combined is modified (step 3030). After that, if the number of additional joint purchase orders increases (step 3040), the order number DB is repeated (step 3030).

On the other hand, the number of joint purchase orders is stagnant (step 3040), and after the end of the joint purchase deadline (step 3050), the web server accumulates the number of cumulative orders by the price of the joint purchase price (the sum of the actual orders and the number of reservation orders). Examine whether the number of minimum orders is exceeded (step 3060), and if it exceeds each step, notify the reservation owner of the corresponding purchase price step by e-mail or instant messenger (step 3070). Ask the co-purchaser to send the co-purchase product along with the personal information of the co-purchase participant (step 3080), and request the credit card payment approval from the credit card provider (step 3090).

On the other hand, if the cumulative number of orders for each stage of the joint purchase price (the sum of the number of actual orders and the number of reservation orders) does not exceed the minimum number of stages (step 3060), an e-mail will be sent to the reservation order for each stage of the purchase price. Or via instant messenger (step 3100), and deletes the credit card payment related information received from the purchaser (step 3110).

In other words, for example, a purchase reservation (Save a Spot function) currently sells for 2.28 million won, but regardless of the current selling price, if a customer reserves a purchase of 2.25 million won, which is the price he / she wants to buy, The actual order number (for example, six actual orders at 2.28 million won) and the reservation order number (for example, eight reservation orders at 2.7 million won) and the reservation order at 2.25 million won The total number of orders, including the total number of orders, including the total number of six orders and the number of 20 reserved orders, including twenty orders for twelve cases, is twenty. This is the function to make a purchase order. This feature has the advantage of increasing the number of co-purchase orders by aggregating the potential demands of consumers withholding participation at the current selling price.

However, in the case of MobShop.com joint purchase method, the price setting of the order number of the joint purchase products is made only by prior consultation between the web server, the joint purchase operator and the seller, excluding the consumer, and also within the staged joint purchase order number. As the same selling price is applied, it has a problem that discount benefits from joint purchase are not provided to consumers 100%.

For example, if the number of joint purchase orders is the minimum unit of 5 to 9, it is 282 million won, 10 to 19 is 2.7 million won, and if more than 20, the order price is 255 million won. As a pre-arranged price point prior to commencement of a joint purchase, the consumer's expected price for the joint purchase is not reflected at all. As a result, the participation rate for joint purchases decreases due to the expected price and favorable price range of consumers. If the joint purchase product is a new product, it is a path to collect important marketing-related information such as specific price elasticity of consumers. Reveals the limitation that is blocked.

In addition, if the number of orders is 19, the same order price is applied in stages, such as 282 million won from 5 to 9, 2.7 million from 10 to 19, and 2.75 million from 20 or more. In the case of 10 and 19 orders, the difference between the number of orders and the number of orders is 9,000,000 won. The contradiction is being applied. That is, if the number of joint purchase orders is 10, the discount benefits through the joint purchase are faithfully provided to the consumer, whereas if the number of orders is 19, additional discount benefits can be obtained compared to the case of 10 orders. As the same sale price is applied, the discount benefits from mass purchases are relatively reduced, resulting in only a relatively large increase in sellers' profits from mass sales.

In order to overcome the problem that consumers cannot directly participate in setting the selling price when joining a joint purchase, the customer decides the selling price that he / she wants to apply for in the condition that the selling price decreases as the number of orders increases. Mercata.com is a joint purchase. This method is a joint purchase method that combines the existing reverse auction method of Priceline.com and the joint purchase method of MobShop.com, and is currently used as a synergy auction method of pricequiz.com and auction.co.kr in Korea.

Figure 4 is a flow chart showing the process of joint purchase in the Mercata.com joint purchase method. When the consumer connects to the co-purchase operator web server (step 4010), searches for various co-purchase products and selects the co-purchase product they want to purchase (step 4020), the market price, the initial purchase price, Information related to the joint purchase product, such as the current selling price and the discount amount, is displayed on the screen (step 4030).

At this time, if the user wants to participate in the joint purchase and purchase the product (step 4040), the consumer inputs the credit card payment information together with the desired purchase price and the number of orders that the user wants to purchase (step 4050). After creating / modifying the input DB of purchase price and purchase price band by purchase price, the seller is notified in real time (step 4060).

At this time, the web server compares the desired purchase price entered by the consumer with the current selling price (step 4070). If the desired purchase price is the current selling price, the web server regards the joint purchase as actually completed and displays the buyer information DB for each joint purchase product currently in progress. If the desired price is lower than the current selling price (step 4160), the purchase reservation information DB for each joint purchase product currently in progress is modified (step 4080).

Then, if there is a change in the purchase price and the desired price range of the joint purchase product according to the progress of joint purchase (step 4090), the change of the order information is transmitted to the seller, and the seller receives the order information. Considering the number of orders for each desired price range and sales profit per unit at the price range, the price will be decided. In this process, when the seller notifies the current selling price reduction (step 4100), the web server returns to step 4070 and compares the existing desired purchase price with the newly changed current selling price.

On the other hand, if the co-purchase period ends when the seller maintains the current selling price (step 4110), the web server searches for the co-purchase final participant through the buyer information DB and purchase reservation information DB for each co-purchase product (step 4120). The final participant is notified of the end of the joint purchase and the final selling price (step 4130), and the seller is requested to deliver the product while notifying the personal identification information of the joint purchase participant (step 4140). After that, the credit card provider is requested to approve the credit card payment related to the joint purchase (step 4150). On the other hand, consumers who fail to participate in the joint purchase because the desired price of purchase is lower than the selling price at the end of the joint purchase are notified of the failure to participate in the joint purchase (step 4170), and the credit card payment information received from the corresponding purchaser is deleted / modified. (Step 4180).

On the other hand, if the consumer is not willing to purchase the co-purchased product (step 4040) but is willing to continue the co-purchase search (step 4190), the search will continue, but if there is no additional search intention (4190). Step) End the joint purchase.

In Mercata.com's co-purchase mode, the co-purchase operator discusses with the seller the initial selling price that can be provided according to the minimum co-purchase order, and then displays the market selling price, initial selling price and current selling price on the website. Recruit co-purchase participants by asking them to present their desired purchase price and number of orders. The number of the joint purchase order and the desired purchase price information is delivered to the seller in real time, and the seller sets the selling price that the seller can provide according to the size of the cumulative order so far by the desired purchase price range. Will change.

At this time, the consumer who participated in the joint purchase at the current selling price is guaranteed 100% of the purchase of the product, and when the number of joint purchase orders increases, the discount price for purchasing the product at the final discounted price is provided if the selling price decreases. On the other hand, consumers who have suggested a purchase price lower than the current selling price will be able to purchase the product only if the current selling price is equal to or lower than the purchase price. Considering this, you can change your desired purchase price during the joint purchase period.

That is, for example, if a company A company laptops are jointly purchased through Mercata.com's co-purchase method, the co-purchase operator's web server may determine the co-purchase initial sales price from 5, which is the minimum number of co-purchase orders determined through consultation with the seller. The current selling price of 2.28 million won is a discounted price of 160,000 won from the selling price of 3 million won on the website, and since then the number of joint purchase orders has exceeded five, and the price suggested by the seller has been changed according to the number of orders changed. Post at selling prices to encourage consumers to participate in joint purchases.

If a consumer is willing to purchase at the current selling price of 2.28 million won, he or she may apply for joint purchase by entering his or her desired purchase price of 2.28 million won, and after joining the joint purchase, the more consumers participate in the joint purchase, The greater the discounts, the more active they are in encouraging them to participate in co-purchasing (Share the Power feature on Merccata.com).

On the other hand, if the desired purchase price is 2.6 million won, the consumer purchases 2.6 million won instead of the current selling price of 2.28 million won, so that the number of joint purchase orders increases enough, and the current purchase price of the joint purchase falls below 2.6 million won. However, if the number of joint purchase orders is less than expected and the current selling price is higher than 2.6 million won at the end of the joint purchase, it will not be possible to participate in the joint purchase. Therefore, a consumer who has set a desired purchase price lower than the current selling price can confirm that the current selling price changes during the joint purchase period, and then the current selling price falls short of the expected price and falls to the desired purchase price before the deadline. If it is determined that there is no possibility, it will revise its purchase price slightly higher and rejoin joint purchase.

Mercata.com's co-purchasing approach allows customers to directly participate in co-purchasing pricing by consolidating the demands of potential co-purchasing participants who are withheld from the current co-purchase price. It has

However, in the case of the Mercata.com joint purchase method, when consumers set their desired purchase price, there is no fixed reference price, so they enter a ridiculously low price. As a result, there is a limit to achieving the original purpose of the joint purchase of sharing discount benefits through mass purchase. This phenomenon is a common problem of the reverse auction method in which consumers directly enter a price they want to purchase, and priceline.com is also pointed out as a problem of inefficiency of the system due to a low transaction rate of less than 15%.

In addition, when a consumer enters their purchase price, no information is provided as to whether the purchase price is a practically acceptable price range that the seller can accept. As a result of avoiding participation, the unrealistic price portion of the desired purchase price entered by the consumer who applied for joint purchase is high, and the deviation in the desired purchase price is severe, showing a limitation in obtaining marketing information such as actual price elasticity. .

On the other hand, in the case of Mercata.com joint purchase method, if the desired purchase price entered by the consumer is slightly higher than the current selling price at the end of the joint purchase, the consumer cannot participate in the joint purchase. Since the entered consumer cannot participate in the joint purchase only by adjusting his or her desired purchase price to the current selling price prior to the end of the joint purchase, the consumer has not been able to faithfully provide the price bargaining authority.

In order to faithfully achieve the original purpose of joint purchase, which provides consumers with discounts for mass purchases and guarantees proper profits by reducing sales costs for mass sales, 'how much can the actual purchase demand be aggregated' and ' How faithfully the discounted discounts for mass purchases are provided to the aggregated purchasers is the direction of problem solving.

In this respect, the existing joint purchase method has a certain limitation, so that the actual price negotiations can be made to the joint purchase participants in order to reinforce the cohesion of the actual purchase demand including the potential demand and to increase the discount benefits through the bulk purchase. New co-purchasing methods are required in order to provide authority.

The present invention was created to solve the above problems of the conventional joint purchase method, by presenting a wider range of purchase request price that can be selected by the consumer than the joint purchase method of MobShop.com joint purchase including potential demand In addition to providing greater price discounts through increased participation, and in particular, by providing a purchase probability at the present time for each price that can be purchased, consumers will be able to make a decision at the price that I would like to apply. The purpose of this study is to reduce the uncertainty and increase the price discount by increasing the influence of the consumer on the selling price by bringing collective bargaining effect on the product price between the buyer group and the seller through the change trend of purchase probability.

The present invention begins with the display of an individual co-purchase product provided on a web page. When a consumer connects to a web server hosting co-purchase, enters his / her real name and e-mail address, joins a member, searches for a co-purchase product with a purchase intention, and clicks on the web server. Together with the deadline for the joint purchase, the price available for purchase and the current number of orders per purchase price and the probability of purchase are displayed on the screen, and the customer browses these information and selects the price that he / she wants to purchase from among the price available for purchase. You can apply for a joint purchase by entering. When a consumer's purchase request is made, the web server automatically calculates and outputs a purchase probability for each purchase request price of the joint purchase product on a screen in real time.

In addition, the present invention is a consumer who applied for a purchase at a probable price of less than 100% purchase probability during the joint purchase period as if the consumer to find a price point satisfactory to each other through the price bargain between the buyer and seller when purchasing the product offline After confirming the attitude of the seller through the change in the probability of purchase by the price available for purchase, the buyer's desired price and the number of orders are modified.

In addition, the present invention after the end of the joint purchase period through this process, the web server willing to participate in joint purchase through e-mail or instant messenger to the individual consumer who applied for purchase at a price price higher than the final purchase probability set by the consumer himself After confirming, the joint purchase product at the final selling price is applied to the consumer through the seller, characterized in that the joint purchase product is provided.

1 is a flow chart of a joint purchase process in the traditional joint purchase method according to the prior art.

2 is a flow chart of a joint purchase process in the traditional joint purchase method according to the prior art (Mobshop.com).

FIG. 3 is a flow chart of a joint purchase process in a joint purchase method in a joint purchase method using a save a spot in FIG.

Figure 4 (a), (b) is a flow chart of the joint purchase process in the traditional joint purchase method according to the prior art (Mercata.com).

5 is a block diagram of the overall system of the present invention.

Figure 6 (a), (b) is a flow chart of the joint purchase processing process in the purchase probable price joint purchasing method according to the purchase application possible price in accordance with the present invention.

7 is a view schematically showing a screen of the joint purchase product related information according to the present invention.

8 is a flow chart of a current purchase probability modification process according to the purchase price applicable price according to the present invention.

9 is a flow chart of a process for changing a purchase order in accordance with the present invention.

10 is a flow chart of a joint purchase potential buyer purchase induction process through the establishment of a reservation purchase criteria according to the present invention.

11 (a), (b) is a flow chart of the pre-warning system for prospective co-purchase bidders through the setting of reservation reservation criteria according to the present invention.

Hereinafter, the present invention will be described in more detail.

The accompanying drawings are only intended to help explain the construction and operation of the present invention, and the scope of the present invention is not limited or limited by the drawings or the description with reference to the drawings.

According to the present invention, the automatic purchase / purchase joint purchase method for each purchase request price range suggests a purchase request price range for a joint purchase product under prior consultation with a seller in a web server, which is a joint purchase operator, and the consumer provides these information. Based on the purchase desire and the point of purchase need for the co-purchased product, the user selects the desired purchase price and inputs the order number, and the web server displays the GAP between the order number and the current selling price. Through the automatic calculation of the probability of purchase for each price available for purchase in real time, it is possible to increase the participation of consumers in joint purchases and to support decision-making on pricing.

5 illustrates in more detail the participants and their relationships in the joint purchase method proposed in the present invention. The consumer 100 accesses the web page 201 operated by the web server 200, which is the co-purchase operator, through a wired / wireless web browser 110 that can access the Internet, and then registers as a member and has his / her ID and password. Register 120. When registering, you must enter an e-mail address where you will be notified of future joint purchase notices and results. When the consumer joins as a member, the joint purchase operator 200 stores the consumer member personal information related information DB 203.

When the seller 300 requests sales agency with providing product information on its products, the joint purchase operator 200 determines the joint purchase period, purchase price range, purchase probability calculation function, etc. through consultation with the seller 300. After that, the product information is registered in the product catalog DB 206 and the seller DB 209, and the purchase probability calculation function negotiated with the seller 300 is registered in the purchase probability calculation function DB 208 for each joint purchase product. The registered product is posted as a co-purchase product on the web page 201, and the order status DB 207 for each co-purchase currently in progress product is configured.

When the consumer 100 searches for the joint purchase product on the web page 201 and then participates in the joint purchase of the desired product, the web server 200 orders the product status DB 207 and the consumer by the joint purchase progress product. Modify the joint purchase participation DB (205) of (100), and also transmit the number of purchase orders and price levels by purchase request price to the purchase probability calculation function DB 208 for joint purchase products to apply for the purchase of the joint purchase proceeding product. Probability of purchase price by available price range will be modified in real time.

When the consumer 100 wants to check the progress of the joint purchase in which the consumer 100 participates, the web server 200 searches the member's joint purchase participation DB DB 205 and checks the joint purchase product in which the member participates. After confirming, the order status DB 207 for the joint purchase progress product is searched, and the progress status of the corresponding joint purchase product is output to the website 201.

When the joint purchase is completed, the web server 200 searches the order status DB 207 for the joint purchase progress product and the joint purchase participation DB of the member, and purchases the ordered order with the consumer 100 having a 100% purchase probability. The final purchase price of the application price is higher than the reserved purchase probability set by the customer 100, and the member's personal information DB (203) is searched for personal contact information such as e-mail address and address. While confirming the intention to participate in the joint purchase in the price, the seller 300 requests the delivery of the product while transmitting the joint purchase order information.

When the seller 300 delivers the joint purchase product to the corresponding consumer and transmits the same to the web server 200, the web server 200 searches for the personal information DB 203 of the member and participates in the joint purchase. Extract the credit card number and other payment related information input from the bank and ask the bank / credit card company 400 to approve the payment for the purchase of the co-purchase, and the bank / credit card company 400 performs the payment for the transaction. Approve and pay for it.

When payment is completed from the bank / credit card company 400, the web server 200 pays the seller 300 an amount deducting a pre-arranged sales agent fee from the total co-purchase sale price.

In the present invention, the consumer unit includes a web browser 110 for accessing the web server 200, the consumer 100 is registered as a member to the web server 200 has an ID and password 120 Say a person.

The web server 200 is a personal information related information DB (203) for storing personal information (including an e-mail address) input by the consumer 100, individual past purchase information stored in the past joint purchase participation information for each individual DB (204), the joint purchase of the members who recorded the detailed participation status such as the order point of purchase, the desired price of purchase, the number of orders, the probability of purchase of the desired price at the time of ordering, the reservation probability of reservation and the setting of prior warning function Participation Status DB (250), Product Catalog DB (206) where product images and detailed product / price information of the joint purchase products are stored. Order Status DB (207) by Progressive Product, Purchase Probability Estimation Function Database by Joint Purchase Product (208), Joint Purchase System And a seller DB 260 including the number of sales agents, payment information, and delivery related information, the web page 201 through which the consumer 100 can search for co-purchase products and a server for driving them. The program 202 and payment gateway 210 for credit card payment processing are incorporated.

Figure 6 is a flow chart of the joint purchase process in the purchase procurement notation joint purchase method by purchase request price range. The consumer 100 accesses the co-purchase operator web server 200 using the web browser 110 and registers with his / her ID and password (120) to log in (step 5010). After searching for a product and selecting one of the co-purchase products that he / she wants to purchase (step 5020), the web server 200 searches the product catalog DB 206 and the order status DB for each co-purchase product and applies for purchase. Information related to the corresponding joint purchase products such as the current order number and purchase probability by price range and purchase request price range are displayed on the screen (step 5030).

At this time, if the user wants to participate in the joint purchase and purchase the corresponding product (step 5040), the consumer 100 selects the price he / she wants to purchase from the purchase price range and inputs the credit card payment information together with the order number (step 5050). The web server 200 sends the order information of the consumer 100 to the order status DB 207 for the joint purchase progress product to modify the order number for each purchase price available (step 5060), and the probability of purchasing the product for the joint purchase. It is sent to the calculation function DB (208) to automatically correct the real-time purchase probability of the applicable purchase price of the joint purchase product (step 5070).

At this time, the web server 200 confirms whether the current purchase probability of the purchase request price that the consumer 100 has applied for is 100% (step 5080), and if the current purchase probability is 100%, the member's joint purchase participation status DB (205). In step 5170, if the procurement participation is confirmed, the DB is modified.If the procurement probability is less than 100%, the procurement participation status of the member is classified as a purchaser who has not confirmed the procurement. Modify the database (step 5090).

Then, if there is a change in the number of orders for the purchase price of the joint purchase product according to the progress of the joint purchase (step 5100), the web server 200 returns to step 5060 to modify the order number and the probability of purchase for each purchase price. do.

On the other hand, if the co-purchase period ends in the state that the number of orders by purchase price is unchanged (step 5210), the web server 200 makes a final purchase for each price that can be purchased in the order status DB (207) for the joint purchase process. While searching for the probability, the member's joint purchase participation status DB (205) searches the participant status by the available price range, and the group with less than 100% of the final purchase probability of the price available for purchase is selected. The purchase participant is classified (step 5120).

For the joint purchase participant whose final purchase probability is 100%, the web server 200 is the final sale of the joint purchase through the e-mail address or instant messenger registered in the member's personal information DB 203. While notifying the price (step 5180), the seller confirms the number of orders checked in the member's joint purchase participation status DB 205 together with the personal information such as the member's name / address / telephone number extracted from the member's personal information DB (203). Notify 300 and request the product delivery (step 5190). Thereafter, the web server 200 checks whether the seller 300 delivers the product, and then, based on the payment related information input from the consumer 100 when the joint purchase order is registered in the joint purchase status DB 205 of the member, the bank / credit card company Claim 400 to approve payment of the payment (step 5200).

On the other hand, if the final purchase probability of the purchase offer price selected by the joint purchase participant is less than 100%, check whether the consumer 100 has set a reservation purchase probability when participating in the joint purchase in the joint purchase participation status DB (205) of the member. If the reserve purchase probability is set (step 5130), the consumer 100 determines whether or not the final purchase probability of the selectable purchase price is greater than or equal to the reserve probability (step 5140). If the final purchase probability of the customer is greater than or equal to the reservation probability, the consumer 100 participates in the joint purchase at the final selling price together with the final selling price through the e-mail address or instant messenger registered in the personal information DB 203 of the member. A message for confirming whether or not to send is sent (step 5150). Receiving the message as described above, the consumer 100 determines whether or not he / she participates in the final selling price (step 5160) and, if he / she intends to participate, co-operates with the web server 200 through an e-mail or an instant messenger. The application for purchase participation is applied (step 5210), and when the participation application is received from the consumer 100, the web server 200 returns to step 5190 to process the product delivery and payment.

On the other hand, a consumer (100) who did not set a reservation purchase probability with a final purchase probability of less than 100% or a reservation purchase probability but a final purchase probability lower than a reservation purchase probability with a reservation purchase probability of less than 100% is selected from the web. The server 200 notifies the joint purchase participation failure message through an e-mail address or an instant messenger registered in the personal information DB 203 of the member (step 5220).

On the other hand, if the consumer 100 does not intend to purchase the co-purchased product (step 5040), but is willing to continue the co-purchase search (step 5230), the search operation is continued, but there is no additional search intention. In step 5230, the participation in the joint purchase ends.

7 is a screen output content of the joint purchase product related information based on the product catalog DB 206 and the order status DB 207 for each joint purchase progress product, which illustrates step 5030 of FIG. 6 in more detail. When the consumer 100 searches for a joint purchase product and selects the desired joint purchase product, the web page 201 displays ① product name (product number), ② product photo, ③ product / price information, and ④ joint purchase deadline. ⑤ Minimum number of joint purchase orders, ⑥ Current number of orders, ⑦ Available price for joint purchase, ⑧ Current number of orders for purchase price, ⑨ Current purchase probability per purchase price, ⑩ Purchase order button, ⑪ Order number, Information such as the reserve purchase probability button and the advance warning function button are displayed.

FIG. 8 is a flowchart illustrating a process of modifying a current purchase probability according to available price ranges, which describes steps 5060 and 5070 of FIG. 6 in more detail. If the number of orders per purchaseable price range increases as the number of consumers (100) participating in the joint purchase increases, or when the number of orders between the price available for purchase request changes as the existing joint purchase participants change their orders In addition, the web server 200 modifies the order number for each purchaseable price band in the order status DB 207 for the joint purchase progress product (step 6010), and thus causes a change in the current purchase probability.

At this time, the web server 200 checks whether the current purchase probability is 100% for each purchaseable price range (step 6020), and excludes the applicable purchase price for which the purchase probability is 100% from the purchase probability calculation function. Convert to a fixed value (step 6060).

In order to operate the automatic purchase probability calculation system through the purchase probability calculation function for the purchase price that is not 100% of the probability of purchase, first, between the lowest value within the purchase price that can be purchased 100% and the applicable price The price-related variable value included in the purchase probability calculation function of the corresponding joint purchase product, such as a gap (GAP), is calculated (step 6030), and then the purchase of the joint purchase product, such as the cumulative number of orders above the applicable price for purchase. Calculate the value of the order number related variable included in the probability calculation function (step 6040), and substitute the price-related variable value and the order-number related variable value into the purchase probability calculation function of the corresponding joint purchase product to obtain the applicable purchase price. Calculate the probability of the current purchase at (step 6050).

FIG. 9 is a flowchart illustrating a process of changing a joint purchase order, and details the process of changing the order number between purchase price available as the existing joint purchase participant changes his / her order in step 5100 of FIG. 6. .

The consumer 100 who has already applied for an order to purchase an ongoing co-purchase product may check and modify his order while the co-purchase is in progress. After the consumer (100) who wants to check and correct his order is connected to the co-purchase operator web server 200 using his web browser (110) (step 7010), the contents of the order on the initial page of the web page 201 are displayed. If the user clicks the inquiry button (step 7020) and inputs his / her ID / password 120 (step 7030), the web server 200 searches for the member's personal information DB 203 to check the member and then checks the member. The co-purchase participation status DB 205 of the member and the past purchase information DB 204 of the member is searched and output the co-purchase product details of the corresponding consumer 100 participated in the recent year on the web page 201 screen in the latest order ( Step 7040).

If the consumer 100 selects and clicks on the current ongoing co-purchase product that he wants to inquire among his / her co-purchase participation product contents displayed on the screen (step 7050), the web server 200 displays the member's co-purchase participation status DB. In (205), the customer 100 retrieves the contents of the order of the co-purchased product, the number of orders and the probability of purchase by purchase price available at the time of the purchase, and the order status of the product of the joint purchase. In the DB 207, confirm the order number and the probability of purchase by the available price range at the present time, and change the order number and the probability of purchase by the price and the current price at the time of order of the corresponding joint purchase product on the web page 201. The trend is output (step 7060).

When the customer 100 who wants to change his order after checking the order history clicks the change order button (step 7070), the web server 200 searches the member's joint purchase participation status DB 205 at the time of the final order. If the probability of purchase is 100% selected by the consumer (100), the purchase probability is 100% (step 7080), and if the probability of purchase is not 100%, the consumer 100 newly displays a new order on the screen. The user selects the available price to purchase and inputs the order number (step 7090). On the other hand, when the purchase probability of the purchase application price selected by the consumer 100 at the time of the final order is 100%, the web server 200 outputs an error message on the screen (step 7120), and returns to step 7070.

In order to suppress the modification of the order contents of the consumer who chose the purchaseable price with 100% purchase probability at the time of the final order, the purchase probability estimation function is stabilized by stabilizing the change in the number of orders by the price that can be purchased during the joint purchase. It is intended to support efficient operation.

When the consumer (100) who has selected a purchase request price that is not 100% at the time of the last order, selects the purchase request price that he / she wants to purchase and inputs the number of orders, the web server 200 newly purchases the purchase. Comparing the eligible price with the purchaseable price at the time of the final order (step 7100), if the newly selected purchaseable price is equal to or higher than the price available for purchase at the time of the last order, the new order of the consumer 100 The order status DB 207 for each joint purchase progress product is corrected (step 7110). On the other hand, when the newly selected purchase request price is lower than the purchase request price at the time of the final order, the web server 200 outputs an error message on the screen (step 7130) and returns to step 7090.

Limiting the newly selected purchaseable price range above the purchaseable price selected at the time of the final order is intended to bring the price bargaining effect between the consumer 100 and the seller 300 online. That is, when a product price is negotiated between the consumer 100 and the seller 300 when the product is purchased offline, the consumer 100 initially presents a price much lower than the price level that is acceptable to the seller. Similar to presenting higher and higher price ranges by looking at the response of), in order to make a price bargain between the consumer 100 and the seller 300 online, the consumer 100 newly selects the purchaseable price previously selected. The purchaseable price must be the same or higher.

As mentioned earlier, Mercata.com's joint purchase method, in which the consumer directly enters the desired purchase price, does not participate in the joint purchase if the consumer enters a purchase price lower than the final sale price. As a result, even in the final selling price, even consumers who are willing to purchase are excluded from joint purchase.

In order to solve this problem, the co-purchase operator can extract the consumers whose desired price is within a certain range of the final selling price and use the co-purchase intention to participate in the co-purchase. How to decide can be pointed out as a problem. In other words, not only the price elasticity that consumers feel depends on the characteristics of products such as high-priced products, low-cost products, durable goods or repeated purchase products, but also the price elasticity that consumers feel depending on which brand product is the same product. to be. In addition, the price elasticity is also different according to who the consumer desires for the same brand products, depending on who the consumer is. Price elasticity will change accordingly. Therefore, the method of co-purchasing operators unilaterally setting the same criteria to classify potential consumers causes a problem that the target audience becomes too narrow when the criteria are strictly applied. Has a problem that it could be spam mail asking for intention to buy at the unwanted final selling price.

Designed to overcome these problems, it is the way for consumers to set their own reservation criteria. Reserved purchase price is not a price that consumers want to purchase but it is a price range that can be considered to some extent.After the end of the joint purchase, the final selling price is set higher than the price selected by the user, so the final sale is not possible. If the price is below a certain level, it is a price-related criterion that suggests to the co-purchase operator the opportunity to consider once again whether to buy the co-purchase product.

The method of setting reservations for reservation is as follows: 1) When the consumer has the final purchase probability of the available purchase price, which is more than a few percent, the user sets the reservation purchase probability to confirm the purchase intention again. When the final selling price is less than or equal to the way, you can set a reservation price to reserve yourself to confirm the purchase intention.

FIG. 10 is a flowchart illustrating a purchase induction process of a potential purchaser of joint purchase through the setting of reservation purchasing criteria of this nature, which describes steps 5130, 5140, and 5150 in FIG. 6 in more detail.

When the consumer 100 sets a reservation purchase standard by selecting one of the reservation purchase probability method and the reservation purchase price method by clicking the reservation purchase standard button when the joint purchase order is made (step 8010), the web server 200 determines the member's reservation. After the joint purchase period is over, the consumers who have stored the joint purchase participation status DB 205 and set the reservation purchasing criteria for the corresponding joint purchase product are searched (step 8020).

At this time, whether the reservation purchase criteria is set as the reservation purchase probability method or the reservation purchase price is set (step 8030) .If the reservation purchase probability method is set, the reservation purchase probability of the corresponding consumer is searched (step 8040). ), The final purchase probability of the purchaseable price selected by the relevant consumer is searched in the order status DB (207) by the joint purchase proceeding product (step 8050), and the final purchase probability is compared with the final purchase probability and the reservation purchase probability (step 8060). In the case of customers who are above the probability of reserve purchase, they are determined to participate in joint purchase at the final selling price (step 8070), and for those whose probability of final purchase is below the probability of reservation, the final purchase price and the final purchase probability of the orderable purchase price are included. Notify the purchase participation failure message (step 8080).

On the other hand, if the reservation purchase standard is set to the reservation purchase price method, the member's joint purchase participation status DB (205) searches for the reservation price of the corresponding consumer in step 8090, and if the final selling price is less than the reservation purchase price, The intention to participate in the joint purchase at the final selling price is determined (step 8070). If the final selling price is higher than the reserved purchase price, the corresponding consumer is notified together with the final selling price information (step 8210).

FIG. 11 is a flowchart of a preliminary warning system for a prospective purchaser of a joint purchase through setting a reservation purchasing standard, so that step 5100 of FIG. 6 may be performed more smoothly.

When the consumer 100 sets up a pre-alarm function button at the time of the joint purchase order (step 9010), the web server 200 checks whether the consumer sets the reservation purchase criteria in advance (step 9020), and reserve reservation criteria. If you have set up the e-mail, instant messenger, mobile phone, such as a variety of pre-alert way, the consumer (100) can choose the way you want (step 9030), if you do not set the reservation purchase criteria reservation reservation standards first (Step 9140).

After that, the web server 200 searches for a product that has a pre-alarm point in the current joint purchase (step 9040), and checks whether there is a member who has selected the pre-alarm function among the joint purchase orderers (step 9050), and selects the pre-alarm function. If there is a consumer (100), it is classified whether the reservation criteria of the reservation of the consumer (100) is a reservation purchase probability method or a reservation purchase price method (step 9060).

In this case, when the consumer 100 selects the reservation purchase probability method, the web server 200 searches for the reservation purchase probability of the corresponding consumer in the joint purchase participation status DB 205 of the member (step 9070) and for each joint purchase progress product. In the order status DB 207, the current purchase probability of the available purchase price selected by the corresponding consumer is searched (step 9080), and the current purchase probability is compared with the reservation purchase probability (step 9090).

At this time, if the current purchase probability is lower than the reserved purchase probability (9090 step), the web server 200 classifies the pre-alert method of the consumer 100 in various ways (9100 step), and the possibility of joint purchase bidding for each method is determined. If the current purchase probability is higher than the reserved purchase probability, the pre-warning system is not operated separately as the intention to participate after the end of the joint purchase is determined.

On the other hand, when the consumer 100 selects the reserved purchase price method in the reserved purchase criteria, the web server 200 searches for the reserved purchase price of the corresponding consumer in the joint purchase participation status DB 205 of the member (step 9120), and the current selling price. By comparing the reserve purchase price with the reserved purchase price, if the current selling price is higher than the reserved purchase price, the web server 200 returns to step 9100, and if the current selling price is less than the reserved purchase price, the joint automatically The pre-alarm system does not operate separately as the intention to participate after the purchase ends.

According to the present invention, the consumer can apply for a purchase at any price that he / she wants among the available price ranges listed on the website during the joint purchase period, so that the consumer can freely participate in the joint purchase without burdening the final selling price. The consumer's participation is strengthened rather than the purchase method, and the purchasing power is strengthened. As a result, the price discount for the bulk purchase is increased.

The existing MobShop.com joint purchase method has a problem that the joint purchase period is extended to increase the number of orders as the participation rate decreases at the relatively high selling price at the beginning of the joint purchase. In addition, price setting for each order of the number of ordered products is made only by prior consultation between the joint purchaser and the seller, excluding consumers, and within the number of ordered ordered price, the same sales price is applied. The discount benefits do not provide 100% to consumers.

In addition, the existing Mercata.com joint purchase method shows a problem that the actual purchase of buyers is insufficient by inputting a ridiculously low price, since there is no fixed reference price when a consumer inputs a desired purchase price. In addition, when a consumer enters a desired purchase price, the uncertainty about the possibility of purchase at the desired purchase price results in the consumer avoiding participation in a joint purchase. There is a limit to getting information.

In contrast, the new joint procurement method provides consumers with a reference range of purchaseable price ranges and the probability of purchase at the current point in time of the individual price range, thereby bringing together potential buyers and real purchasing power.

In addition, in the new joint purchase method, the purchase probability can be viewed and price can be revised according to the available price range during the joint purchase period. Therefore, consumers can strategically set the desired purchase price according to their purchase desire and the point of purchase of the joint purchase product. By presenting the change to the seller, the bargaining effect on the product price between the buyer and the seller can be enjoyed offline.

In particular, through reservation purchasing criteria and advance warning functions, it is possible not only to provide more consumers with the opportunity to participate in the joint purchase, but also to support price bargaining between consumers and sellers.

In the joint purchase method, in which the consumer directly enters the desired purchase price, if the consumer's desired price is lower than the final sale price, the buyer cannot participate in the joint purchase. In order to solve this problem, if the co-purchase operator extracts the consumers whose desired price is within a certain range of the final selling price and uses the method to participate in the co-purchase, the product and consumer characteristics will be different. Since it is not considered at all, it can be spam.

Designed to overcome these problems, it is the way for consumers to set their own reservation criteria.

In other words, in the case of bargaining prices between consumers and sellers, it is extremely unlikely that a transaction will be made at the price suggested by the consumer in just one time, and most transactions are usually made only after two or more prices have been presented between the consumer and the seller. . However, in the case of online, it is difficult to repeatedly make a bargain, such as offline, because consumers and sellers do not have a chance to meet one-on-one in person except when using instant messenger or real-time chat. Particularly in the case of the joint purchase, it is very difficult for the consumer to participate in the joint purchase and to negotiate the price directly with the seller during the joint purchase.

Therefore, it is possible to reinforce the effect of price bargaining by providing the buyers who participated in the joint purchase and applied for a purchase but the price is not suitable so that they cannot purchase the product once again from the price suggested by the seller. Will be. In other words, the reservation purchasing standard is the same as catching the consumer by offering the opportunity to negotiate the price once the seller finally proposes the final price to the consumer who thinks that he or she is inclined to buy to the extent that the price is not suitable for offline. The effect can be realized online. .

Claims (20)

A first step in which an internet user accesses and logs in to an operator web server using a web browser; When the Internet user searches for a joint purchase product and selects a desired joint purchase product, the web server searches for a product catalog DB and an order status DB for each joint purchase progress product and displays information related to the joint purchase product; A third step of receiving order information on the product from the Internet user; The web server sends the order information of Internet users to the order status DB for each joint purchase product, modifies the number of orders available for purchase price, and sends the purchase probability calculation function database for the joint purchase product to apply for the purchase of the corresponding joint purchase product. A fourth step of automatically correcting purchase probability by price in real time; If the current purchase probability is 100%, the web server modifies the DB by classifying the purchaser as a confirmed purchaser in the joint purchase participation status DB, and if the current purchase probability is less than 100%, the user A fifth step of modifying the DB by classifying the purchase purchaser who is not determined to participate in the joint purchase in the joint purchase participation DB; If the joint purchase deadline ends when there is no change in the number of orders by purchase price, the web server purchases the product from the order status DB by purchase price and the user's participation in the joint purchase DB. A sixth step of searching for the status of the participants by the applicable price range and classifying the joint purchase participants into a group having a final purchase probability of 100% and a group of less than 100% selected by the user; A seventh step of sending, by the web server, the final purchase price of the joint purchase through an e-mail address or instant messenger registered in the personal information DB to the joint purchase participant having the final purchase probability of 100% of the purchase request price selected by the user; If the final purchase probability of the user's selected purchase price is less than 100%, the member's joint purchase participation status DB reads whether the user has set the reserve purchase probability when participating in the joint purchase, and sets the reserve purchase probability. An eighth step of judging whether the final purchase probability of the purchase request price selected by the corresponding user is equal to or higher than the reservation probability; If the final purchase probability of the purchase offer price selected by the Internet user is equal to or higher than the reserved purchase probability, the final selling price is notified together with the final selling price through the e-mail address or instant messenger registered in the member's personal information DB. A ninth step of transmitting a message for confirming whether to participate in the joint purchase; The joint purchase method of the probable probability of purchase on the Internet characterized in that consisting of. The method of claim 1, wherein if a change occurs in the number of orders for the purchase price of the joint purchase product after the fifth step, the web server returns to step 4 to modify the number of orders and the probability of purchasing the price for the purchase price. The joint purchase method of the probable probability of purchase on the Internet characterized in that it further comprises a. The method according to claim 1, wherein the number of orders identified in the member's joint purchase participation status DB is sent to the seller along with the personal information such as the member's name / address / telephone number extracted from the member's personal information information DB, and the member after the seller's product delivery. The purchase probabilities on the Internet characterized in that it further comprises the step of requesting the bank / credit card provider to approve the payment of the sales price based on the payment related information input from the user when the joint purchase order DB in the Joint purchase method. According to claim 1, wherein the information related to the joint purchase products displayed in the second step is the joint purchase deadline, the minimum number of joint purchases, the current order number other than the current order number, the purchase order price, the current order number by purchase request price, current A joint procurement method based on a probability of purchase on the Internet, characterized in that information such as purchase probability, purchase reservation. 6. The method of claim 5, wherein the information further includes a reservation purchase probability and a pre-alarm function. The method of claim 1, when the final purchase probability of the user's selected purchase price is less than 100% and the reservation purchase probability is not set or the reservation purchase probability is set but the final purchase probability is lower than the reservation purchase probability. The web server further comprises the step of sending a joint purchase participation failure message through an e-mail address or instant messenger registered in the member's personal information DB, the joint procurement method of the purchase probability notation method on the Internet. According to claim 1, wherein the step of automatically modifying the purchase probability of each purchase request price range of the joint purchase product of the fourth step comprises the steps of: modifying the number of orders for each purchase request price range; Converting the purchase probability to a constant value if the current purchase probability of the corresponding purchase application price range is 100%; Calculating a price-related variable such as a difference between the lowest value of the purchaseable price range at which the current purchase probability is 100% and the corresponding palatable price if the purchase probability is not 100%; Calculating a variable value related to an order number such as a cumulative order number of a price range equal to or greater than the purchase price available for purchase; Modifying a current purchase probability for each purchase price range according to a function of calculating a purchase probability of the joint purchase product; The joint purchase method of the probable probability of purchase on the Internet characterized in that consisting of. The method of claim 2, wherein the tenth step comprises: displaying the latest co-purchase product details of the user on a web page screen when the user wants to change the order contents; When the user selects one of the product details, the web server displaying the order number and the purchase probability change trend of the applicable purchase price range between the order time and the present time of the corresponding joint purchase product; When the user who wants to change the order after checking the order details applies for the order change, the web server searches the joint purchase participation DB and determines whether the purchase probability of the purchase request price selected by the user at the time of the final order was 100%. ; If the user who selects the purchase price that is not 100% at the time of the last order, selects the purchase price that he / she wants to purchase and inputs the number of orders, the web server selects the newly selected purchase price and the final order. Comparing the purchase requisition price at the time point, and if the newly selected purchase requisition price is equal to or higher than the purchase requisition price at the time of the last order, modifying the order status DB for each joint purchase progress product with a new order; The joint purchase method of the probable probability of purchase on the Internet characterized in that it further comprises a. The method of claim 8, wherein if the purchase probability of the purchase request price selected by the user at the time of the final order is 100%, the web server outputs an error message to the screen, so that the number of orders per purchase request price range during the joint purchase is performed. Stabilizing the change trend of the purchase probability calculation function of the joint procurement method characterized in that it further comprises the step of efficiently operating. 10. The method of claim 8, wherein the web server outputs an error message to the screen when the newly selected purchase price is lower than the purchase price at the time of the final order. The method of claim 1, further comprising: in the eighth and ninth steps, the user selecting one of the reservation purchase probability method and the reservation purchase price method when the joint purchase order is set, and setting the reservation reservation criteria of the user; Storing, by the web server in the member's joint purchase participation DB, searching for a user who has set reservation purchasing criteria for the corresponding joint purchase product after the joint purchase period ends; If the reservation purchasing criteria is set as a reservation purchasing probability method, retrieving the reservation purchasing probability of the corresponding user and the final purchase probability of the user's request for purchase price; By comparing the final purchase probability and the reserve purchase probability, the consumer who sent the final purchase probability more than the reserve purchase probability is sent the intention to participate in the joint purchase at the final sale price. Transmitting a joint purchase participation failure message including a final purchase probability of a price and the like; The joint purchase method of the probable probability of purchase on the Internet characterized in that consisting of. The method of claim 1, further comprising: in the eighth and ninth steps, the user selecting one of the reservation purchase probability method and the reservation purchase price method when the joint purchase order is set, and setting the reservation reservation criteria of the user; Storing, by the web server in the member's joint purchase participation DB, searching for a user who has set reservation purchasing criteria for the corresponding joint purchase product after the joint purchase period ends; If the reservation purchase standard is set to the reservation purchase price method, the member's participation in the joint purchase status DB retrieves the reservation purchase price of the user, and if the final sale price is less than the reservation purchase price, the buyer participates in the joint purchase at the final sale price. Transmitting the intention, and if the final selling price is higher than the reserved purchase price, sending a joint purchase participation failure message together with the final selling price information to the corresponding consumer; Way. The method of claim 1, further comprising: setting a pre-alert function when the user purchases a joint purchase order; The web server searches for products that have been pre-alarmed in the current joint purchase, and if there is a user who has selected the pre-alarm function, classifies whether the user's reservation probabilities are reserved or probable prices. ; If the user selects the reservation purchasing probability method, the web server searches the reservation purchasing probability of the user in the member's joint purchase participation status DB, and the current purchase of the applicable purchase price selected by the consumer in the order status DB for each joint purchase product. Searching for a probability to compare a current purchase probability with a reserved purchase probability; If the current purchase probability is lower than the reserved purchase probability, the web server transmits a pre-alarm message for the possibility of joint purchase bidding according to the prior warning method of the user; Way. The method of claim 1, further comprising: setting a pre-alert function when the user purchases a joint purchase order; The web server searches for products that have been pre-alarmed in the current joint purchase, and if there is a user who has selected the pre-alarm function, classifies whether the user's reservation probabilities are reserved or probable prices. ; If the user selects the reserved purchase price method, the web server searches for the reserved purchase price of the user in the joint purchase participation DB of the member, and compares the current selling price with the reserved purchase price; If the current selling price is higher than the reserved purchase price, the web server transmitting a pre-alarm message for the possibility of the joint purchase bidding according to the prior warning method of the corresponding user; The joint purchase method of the probable probability of purchase on the Internet characterized in that consisting of. A means for searching the product catalog DB and the order status DB for the joint purchase progress products and displaying information related to the joint purchase product when the logged-in Internet user selects the joint purchase product; Means for receiving order information for the goods from the Internet user; Send the above order information to the order status DB for each joint purchase product, modify the number of orders for each price that can be applied for purchase, and send it to the DB calculation probability calculation function for the joint purchase product in real time. Means for automatically correcting; If the current purchase probability of the purchase request price of the Internet user applied is 100%, the DB is revised to be classified as a buyer who has confirmed the joint purchase participation in the joint purchase participation status database of the user, and if the current purchase probability is less than 100%, the user Means for modifying the DB by dividing the group into a purchase reservation in which the joint purchase participation is not confirmed in the joint purchase participation status of the DB; If the joint purchase deadline ends when there is no change in the number of orders by purchase price, the web server searches for the final purchase probability of each price that can be purchased in the order status DB by the joint purchase product, and the user participates in the joint purchase. A means for retrieving the participant status by the purchaseable price range from the status database and classifying the joint purchase participants into a group having a final purchase probability of the purchaseable price selected by the user and a group having less than 100%; Means for modifying the order number and the probability of purchase when the number of orders by the purchase price available for purchase changes; Means for transmitting the joint purchase final selling price to a joint purchase participant having 100% of the final purchase probability of the purchase request price selected by the user through an e-mail address or an instant messenger registered in the personal information DB; If the final purchase probability of the user's purchase request price is less than 100%, the member's joint purchase participation status DB checks whether the user has set the reserve purchase probability when joining the joint purchase, and sets the reserve purchase probability. Means for judging whether the final purchase probability of the purchase requisition price selected by the user is equal to or higher than the reservation probability; If the final purchase probability of the purchase offer price selected by the Internet user is equal to or higher than the reserved purchase probability, the final selling price is notified together with the final selling price through the e-mail address or instant messenger registered in the member's personal information DB. Means for sending a message to confirm participation in the joint purchase; The joint purchase system of the probable probability of purchase on the Internet, characterized in that consisting of. The method of claim 15, Means for converting the purchase probability into a constant value when the current purchase probability of the corresponding purchase application price range is 100%; Means for calculating a price-related variable such as a difference between the lowest value of the purchaseable price range at which the current purchase probability is 100% and the corresponding palatable price if the purchase probability is not 100%; Means for calculating a variable value related to an order number, such as a cumulative order number of a price range equal to or greater than the purchase requirable price; And a means for modifying a current purchase probability for each purchase price based on a function of calculating a probability of purchase of the corresponding joint purchase product. 16. The apparatus of claim 15, further comprising: means for displaying the user's recent co-purchase product details on a web page screen if the user wants to change the order contents; When the user selects one of the product history, the web server means for displaying the number of orders and the probability of change of purchase probability per purchase price range between the point of time and the current point of purchase of the co-purchase product; If the user who wants to change the order after checking the order has applied for the order change, the web server searches the joint purchase participation DB and reads whether the purchase probability of the purchaseable price selected by the user at the time of the final order was 100%. Way; If the user who selects the purchase price that is not 100% at the time of the last order, selects the purchase price that he / she wants to purchase and inputs the number of orders, the web server selects the newly selected purchase price and the final order. A means for comparing the purchase requisition price at the time point, and if the newly selected purchase requisition price is equal to or higher than the purchase requisition price at the time of the final order, modifying the order status DB for each joint purchase progress product with a new order; The joint purchasing system of the probable probability of purchase on the Internet characterized in that it further comprises a. 16. The apparatus of claim 15, further comprising: means for setting a reservation purchase criterion of the user, wherein the user selects one of the reservation purchase probability method and the reservation purchase price method when the user purchases a joint purchase order; Means for storing the set reservation purchasing criteria in the member's joint purchase participation status DB and searching for a user who has set the reservation purchasing criteria for the corresponding joint purchase product after the completion of the joint purchase period; Means for retrieving the final purchase probability of the reserved purchase probability of the user and the user's requestable purchase price, when the reserved purchase criterion is set in the reserved purchase probability method; If the reservation purchase standard is set to the reservation purchase price method, the member's participation in the joint purchase status DB retrieves the reservation purchase price of the user, and if the final sale price is less than the reservation purchase price, the buyer participates in the joint purchase at the final sale price. Means for sending an intention and, if the final selling price is higher than the reserved purchase price, sending a joint purchase participation failure message together with the final selling price information to the corresponding consumer; By comparing the final purchase probability and the reserve purchase probability, the consumer who sent the final purchase probability more than the reserve purchase probability is sent the intention to participate in the joint purchase at the final sale price. Means for transmitting a joint purchase participation failure message containing a final purchase probability of a price or the like; The joint purchasing system of the probable probability of purchase on the Internet characterized in that it further comprises a. 16. The apparatus of claim 15, further comprising: advance warning function means set by the user at the time of a joint purchase order; A means for searching a product which has a pre-alarm point among the joint purchases and classifying whether the reservation criteria of the user is reserved purchase probability method or reserved purchase price method; Search the reservation probabilities of the user in the joint purchase participation DB and search the current purchase probabilities of the applicable purchase price selected by the consumer in the order status DB for each joint purchase product, and compare the current purchase probability with the reservation probabilities Way; If the current purchase probability is lower than the reserved purchase probability, the web server may include means for sending a pre-alarm message for the possibility of joint purchase bidding according to the user's prior alert method; Means for retrieving the reserved purchase price of the user from the joint purchase participation DB and comparing the current selling price with the reserved purchasing price; If the current selling price is higher than the reserved purchase price means for transmitting a pre-alarm message on the possibility of joint purchase bidding according to the user's prior warning method; Purchasing system. A consumer unit including a client computer equipped with a web browser for accessing a web server to perform a joint purchase; Personal information-related information DB for storing personal information related to the personal information including the e-mail address entered by the consumer in communication with the Consumer Department, individual past-purchase information DB storing past co-purchase participation information for each individual, and co-purchase participants currently in progress DB purchase status DB, product image of joint purchase product where detailed participation status is recorded such as order point of purchase, purchase desired price, number of orders, probability of purchase at the time of order, reservation probability of reservation and setting of pre-alarm function And product catalog DB, which stores detailed product / price information, order status DB for each joint purchase product that records the total number of purchases and the probability of purchase for the current purchase of the joint purchase, and item / price / brand of the joint purchase product. Probability estimation function DB, joint purchase product, and sales by joint purchase product that stores probabilities estimation function type by characteristic Merchant DB that records the number of transactions, payment information, and delivery information, web pages where consumers can search for joint purchase products, server programs to run them, and payment gateway for credit card payment processing A web server having a built-in; A seller unit for communicating with the web server and performing a joint purchase transaction; Internet purchasing network for connecting the consumer unit, the web server, the seller unit; joint purchase system of the probability of purchasing on the Internet characterized in that it comprises a.