KR20030067088A - Method for internet electronic commerce and system of the same - Google Patents

Abstract

PURPOSE: A method and a system for the Internet electric commerce for optimizing sales and purchase are provided to enable a supplier and a demander to carry out a proper electronic commerce on the web by providing optimized sales and purchase methods from the opinion decision to the completion of the sales/purchase. CONSTITUTION: The system comprises the user PCs(11-14) of a seller and a buyer, an Internet network(20), a seller and a buyer interface(31,32), a central server operated by an operator, and an internal network(40). The central server(50) comprises a firewall(51), a web server(52), an application server(53), a searching engine(54), and a database server(55). The web server(52) provides a page to a browser by using the HTTP(HyperText Transfer Protocol). The internal network(40) comprises a manager computer(41) and a mail server(42). When the user searches the product information through the web server(52), the user accesses the database server(55) by using the searching engine(54) and the product searching information obtained from the database server(55) is transmitted to the user through the web server(52) via the application server(53).

Description

Method for internet electronic commerce and system of the same

The present invention relates to an electronic commerce method and system using the Internet, and more specifically, to support a plurality of suppliers and consumers to optimize a variety of sales methods from sales / purchase decision to sales / purchase completion stage And an internet e-commerce method and system for purchasing optimization.

In recent years, with the rapid spread of the Internet, numerous computers around the world are connected to the Internet, and various types of information services and goods that cannot be done off-line have been newly introduced, and the number of Internet users has soared. There is a surge in the launch of websites for commercial purposes, not just information.

In particular, the number of Web sites for e-commerce is exploding, and in the early days, shopping malls became mainstream, but recently, various forms of e-commerce techniques such as co-purchase, auction, reverse auction, and comparison of price information for each site and Service types have been developed and operated, and web sites that pursue B to B type e-commerce by applying these techniques are continuously appearing.

However, most of the websites are mostly for the relationship between a large company (the head office) and a distributor or for a business that produces or distributes a specific product group and a general company that consumes these products. E-commerce for various types of transactions between retailers is only minimal.

The reason why the activation of electronic commerce is not made is that each technique is not only developed and operated individually but also includes the following important problems for users to use smoothly.

Currently, there are three main types of e-commerce that are commonly used, such as shopping malls, reverse auctions, and price comparison sites. The problems of these three e-commerce methods are as follows.

First, in the case of a shopping mall-type e-commerce method, due to the seller-centered price policy and the margin of the shopping mall operator, most of them are set as departmental consumer prices, so they cannot basically satisfy the purchase price condition of the retailer. It is unable to meet various supply conditions such as variable prices to meet the conditions.

Second, in the case of the reverse auction type e-commerce method, the bidder is selected as a competition among bidders by the buyer's request for purchase bidding. If it takes a long time to make an actual purchase, or if the bidding price is set too high than expected, or if the bidding product does not fit the bidder's characteristics, the bidding amount is too small. There are frequent cases of speculation, such as absence.

Third, in the case of providing information like the price comparison site, the operator can set the product group and each product, and perform the actual transaction in the form of comparing the price information by collecting related product handling companies on the Internet using a search engine. There is no hassle of having to go to the site separately and make a purchase for the order, and the conditions of courier service and payment are different for each site, or if there is no actual stock with only the price for site or company promotion. It is found a lot.

As described above, the conventional e-commerce method focuses on the position of either the seller or the buyer, and the other side only allows the manual access, so there is a limitation in that it cannot sufficiently reflect the needs of the user.

The conditions that should be met in the e-commerce of the Internet market where various products and buyers exist are as follows.

The buyer needs the information to determine in advance whether the price of the product to be purchased is reasonable and decides the purchase decision based on this information and considers various conditions such as the purchase amount and the delivery date. In terms of sellers, they have access to a sales method that can take advantage of their respective merits because they have different competitive edges, such as a strong price competitiveness for a small number of products or a supply capacity for various products. Should be

It provides solutions for sellers and buyers who are trading partners to make autonomous decisions on sales and purchasing policies based on objective and reasonable criteria. Reasonable evidence should be able to present quickly and optimize it.

An object of the present invention is to provide an internet e-commerce method for sales and purchase optimization that can meet all conditions and needs.

That is, the present invention is to solve the problems of the e-commerce method according to the various types of prior art exemplified above, provides the seller with the opportunity to autonomously select the best selling method for their sales policy and environment, and the buyer to buy Providing the fastest, most practical and optimized preliminary information about the goods to support purchasing decision-making and suggesting the best purchasing method for purchasing conditions to provide a method for completing an optimized purchase and a system for implementing the same. For that purpose.

Another object of the present invention is to improve the problems of the conventional e-commerce methods described above, to provide a rational decision-making tool according to the autonomous market principle and to provide an optimized trading method according to the maximized user satisfaction when the transaction is completed To provide a solution.

1 is a block diagram of an entire system used to implement the e-commerce method of the present invention;

2 is a configuration block diagram of the database server of FIG.

3 is a block diagram illustrating an application server of FIG. 1;

4 is a flowchart illustrating a comprehensive flow in carrying out an electronic commerce according to the present invention;

5 is a conceptual diagram illustrating a process of generating and displaying a list of optimal companies among suppliers when a quotation is requested during a purchase process of the present invention;

FIG. 6 is a conceptual diagram illustrating a process in which a buyer automatically generates quotations of a bidding best price company and registers as a bidding reference price;

7 is a conceptual diagram illustrating a process of transmitting order and order information when a buyer's order or successful bid is completed;

Referring to the Internet e-commerce method and system of the present invention for implementing the above object is as follows.

In the present invention, the seller expresses his intention to sell by connecting to a system built by the operator via the Internet.

The company that wishes to make a quotation sale among sellers registers its sales price and condition for each product in consideration of the minimum order unit for each product group preset by the system, or after applying for registration of a new product or a trademarked product through the operator's approval process. Register for quotes through the seller interface it provides.

Among the sellers who wish to make a limited discount sale (hereinafter referred to as `` selling ''), the company sells the product including the minimum order quantity, discounted price, and shipping conditions for certain products that need to be sold in bulk according to its sales policy. Register at At this time, the system can be approved only if it is more than a certain percentage less than the lowest price registered in the quotation for the product.

Registered sales conditions can be modified at any time according to the market environment and reflected in the real-time seller interface.

On the other hand, a potential buyer or a current purchaser may refer to a purchase decision or express a real purchase intention, and may access a system through the Internet and select a product that is needed among various products preset by the system. After selecting and registering the quantity to be quoted, put it in the shopping cart and execute the instant quotation, the system satisfies all conditions such as the item, price, available quantity and available area in the product group database (hereinafter abbreviated as DB). Select a supplier and display the list of companies and their detailed information according to the priority in the order that the buyer wants (in order of estimate amount, then in order of region **). To protect.

If a buyer quotes multiple products, only those suppliers who have registered terms of sale for each relevant product will not necessarily be quoted by their suppliers. Therefore, the buyer may order the quotation separately in the range that satisfies the minimum order condition for each product group to reduce the purchase cost.

In addition, the purchaser can select the purchase method by comparing the sales conditions for each product registered in the last sale and the optimal supplier conditions calculated by the quotation by comparing the purchase conditions for each product provided by the system.

The buyer can make a purchase decision based on this, and can select an optimal supplier among the suppliers and place an order with just one click (ONE-CLICK).

At this time, the central server of the system transmits the order information and the orderer information on the seller interface to the selected supplier through the computer network, and the company starts the delivery immediately, enabling the fastest and cheapest purchase.

If the actual amount or quantity to be purchased satisfies the bid application conditions set in advance by the system, the bid may be applied for. If the buyer has applied for a bid, the system may provide the best price information through the instant quotation system. Save to and automatically calculate the bid price.

In addition, the system requests bidding through ON-LINE to the corresponding quoter that satisfies the purchase condition and posts it on the seller interface to induce participation of other companies to proceed with bidding through multiple participants. .

Each company participating in the bidding can participate in the bidding competitively while looking at the price of the other company.In this case, the real name information of the participating company is protected to protect the trade secrets of each seller's sales policy.

At the time of bidding, the bidding price is suggested by the bidding price too high or the buyer damage caused by collusion is prevented, and the bidding participant is not generated through the application of the preset bid application conditions. Ensure price levels and delivery times are met.

The characteristics of the present invention are, firstly, the list of companies most optimized for the purchase conditions (purchase size, delivery date, region, etc.) by extracting and processing the quoted information for each company on the spot through one-click purchase of the buyer. Is the fastest, most affordable way for buyers to show buyers in the order they want, to support buyers' decision making, as well as to send orders to selected suppliers via one-click to begin delivery immediately. To provide a solution. Second, it automatically improves the problems of the existing reverse auction method by automatically generating the company's lowest price through the quotation as the reference price at the time of bidding and by differentiating the conditions of the quotation purchase and the bid application.

As described above, the present invention provides a rational decision-making solution based on an autonomous market structure in which participants participate as a member, excluding a biased view centered on sellers, buyers, or operators in performing Internet e-commerce. How to achieve that,

The features of this system allow the buyer to verify the lowest price and the best purchase conditions and methods of competitively-available products and competitive suppliers in advance so that they can refer to the purchase decision, thereby reducing the purchase cost. By providing various sales solutions that can participate autonomously in consideration of sales conditions, it will enhance sales and provide an opportunity to maximize the advantages and compensate for the disadvantages by objectively understanding the competitiveness with other vendors.

Hereinafter, an electronic commerce method of the present invention implemented as described above will be described with reference to the accompanying drawings.

1 is a block diagram of the entire system used to implement the e-commerce method of the present invention.

The system embodying the present invention includes a personal computer 11 of a seller and a buyer, an internet network 20, a seller and buyer interface 31, 32, a central server 50 provided by an operator, and an internal network ( 40).

The central server 50 is a central server composed of a firewall 51, a web server 52, an application server 53, a search engine 54, and a database server 55.

The firewall 51 is a hardware means for security authentication, which may be implemented in software through the web server 52.

The web server 52 may provide a page to a browser using a hypertext transfer protocol (HTTP) to be accessible to sellers and buyers.

The application server 53 informs the location of the database by distributing the function of interpreting the seller and the manager interface so that the seller and the buyer can execute the program provided by the operator. It serves to provide synchronization.

In this configuration, when searching for product information and the like through the web server 52, the database server 55 is accessed using the search engine 54, and the product search information obtained from the database server 55 is an application. It is transmitted to the user via the web server 52 via the server 53.

The internal network 40 is composed of an administrator mode computer 41 built for the customer management and post management of the operator, and a mail server 42 for providing a question and answer and a bulletin board.

FIG. 2 is a block diagram illustrating a configuration of the database server of FIG. 1.

The database server 55 constituting the central server 50 of the operator system includes a member information database 551, a quotation sales database 552, a ding sales database 553, a bidding database 554, and a product master database 555. , Order information database 556, settlement information database 557, user history database 558, and the like.

3 is a block diagram illustrating the configuration of the application server of FIG. 1.

The application server 53 performs a function of extracting only necessary information from a plurality of databases 551, 552, 553, 554, 555, 556, 557 and 558 constituting the database server 55. A load balancer 533 for leveling and improving stability and speed of operation, a personalizer 532 for displaying or transferring the extracted data to suit the user's environment, and an e-commerce merchant such as ordering and payment. It is composed of a merchandiser 531 to perform a function.

In the electronic commerce method of the present invention, a plurality of sellers and buyers are connected to the central server 50 through a network based on the Internet and hardware resources configured as described above.

4 is a flowchart illustrating a comprehensive flow in the process of electronic commerce according to the present invention. Here, the flow of the electronic commerce method of the present invention can be viewed by dividing by user, service, application process, and database.

Referring to Figure 4, the e-commerce method of the present invention, the service registration step (A1), sales method selection step (A2), sales registration step (A3), quotation request step (A4), the quotation providing step ( A5), purchase method selection step (A6), online ordering step (A7), bid application step (A8), bid approval step (A9), bidding criteria calculation step (A10), bid participation notification step (A11), bid disclosure It consists of a series of processes consisting of step A12, successful bidder selection step A13, and orderer and order information providing step A14.

As can be seen through Figure 4, proceeding from the quotation request step (A4) to the company selection step (A7) to select a company to see if you do not like to move to the bid application step (A8) without ordering to apply for bidding In addition, the buyer may start from the bid application step (A8) from the beginning.

In each of these steps, the service registration step (A1), the operator of the central system 50 to the database (DB; database; 555) the product master including the sales method process, sales by sales method, purchase conditions, handling product group of the entire system Register at). This service registration can be performed by the operator through a separate manager interface.

In the selling method selection step (A2), the seller selects the selling method of the service provided by the system. At this time, the central server 50 allows the seller to search the conditions and product master database for each sales method through a web browser.

In the sales registration step (A3), the seller selects the product to be sold and inputs the sales condition to register the sales intention. At this time, the central server 50 compares the registration, modification, and deletion function of each sales method and the sales condition information of other registered sellers through a web browser on the seller interface so that the seller can establish a sales policy usefully. Provides the ability to

FIG. 5 is a conceptual diagram illustrating a series of processes in which a system generates and displays an optimal list of suppliers from a supplier upon request for quotation during a purchase process of the present invention.

As shown in Figure 5, in the request for quotation step (A4), the buyer selects the item to be quoted to apply for a quote. At this time, the central server 50 searches for the single or multiple products while the buyer retrieves the lowest price, average price and sales conditions and product details of the individual products registered in the quotation database 552 of the product master database 555 through a web browser. Provides the ability to request a quote.

In the quotation providing step A5, a combination of databases 552 and 553 registered for sale in the system is selected to select an optimal supplier among suppliers that are available for supply. At this time, the application server 553 of the central server 50 extracts and combines the sales conditions and the corresponding suppliers of the products for which the quotation is requested in the quotation DB 552 and the sales DB 553 through the product search engine 554. To provide the list in the order the buyer wishes.

In the purchase method selection step (A6), the buyer selects a purchase method suitable for the purchase condition by using the quotation information. At this time, the information provided through the operation of the central server 50 supports the purchaser by adopting a suitable purchasing method by simultaneously providing comparison information and quoted sales information including sales conditions and sales company location of each seller.

In the online ordering step (A7), the buyer can select the best seller among the sellers who provided the quotation information, and order online. At this time, the central server 50 converts to the order progress mode by clicking on the optimal quotation information provided by the purchaser in the web browser, and the order progress DB and the order book including the order history, the buyer member DB, and the selected supplier member DB. Create and immediately order. The payment method for the order may apply a conventional e-commerce method.

FIG. 6 is a conceptual diagram illustrating a series of processes in which a buyer automatically generates a quote content of a quote optimal seller when registering a bid and registers as a bid reference price.

As illustrated in FIG. 6, in the bid application step (A8), when a buyer wants to purchase a bid purchase method in addition to the purchase method through the quote information, the buyer bids by inputting and providing purchase information and conditions for the item to be purchased. You can apply. In this case, the central server 50 generates the bidding DB 554, the buyer enters the product to purchase and the purchase conditions or all the methods of selecting the product of the product master DB (555) preset by the operator Include.

In the bid approval step (A8), a bid application is approved by comparing a purchase condition such as a purchase amount and quantity when a bid is requested by a buyer with a predetermined criterion. At this time, the central server 50 compares the bidding conditions (minimum quantity or amount, handling product group) specified by the operator in the service registration step (A1) with the purchaser's purchase conditions, so that they are approved only if they meet the criteria. Immediately after applying, the results of the approval will be provided.

In the calculating of the bidding criterion (A10), as shown in the flow shown in FIG. At this time, the central server 50 executes an automatic estimate through the quote DB according to the bid application details at the same time as the bid approval and calculates the optimal condition of the quoted conditions as the bid reference price.

In the bid participation notification step (A11), the bidder is notified to the seller who satisfies the bid purchase condition among the companies that have registered the sale condition in the system. At this time, the central server 50 notifies the bidding participation to the supplyable sellers extracted when performing the automatic quotation for the calculation of the bidding criteria, and the method of notification is transmitted through the ID (ID) of the member DB 551 on the web. This includes how the member is automatically notified to the interface when the member accesses or uses the system, and includes e-mail or other methods.

In the bidding disclosure step (A12) to disclose the bid application conditions and the bidding price through the web browser of the system. At this time, the central server 50 is published in the bid list in progress at the same time as the bid approval, and posted until the bid deadline.

In the selection of the successful bidder (A13), an optimal seller who satisfies the purchase condition of the buyer among the sellers who participated in the bidding after the bidding is selected as the successful bidder. When the buyer clicks on the best bidder among the bidders provided in the web browser, the bidder is selected and the order is processed at the same time. At this time, the central server 50 converts to the order progress mode and changes the bid application details, the buyer member DB and the selected supplier member DB. Orders are processed immediately by creating an order progress DB and the included order.

7 is a conceptual diagram illustrating a process of transmitting order and order information and a delivery process when a purchaser completes an order or a successful bid.

In the order and order information providing step (A14), the seller selected as a supplier receives the order and order information through the order information database 536 of the central server 50.

At the same time, the delivery management system makes a request for delivery to the courier so that the orderer can receive it, and the operator system sets up a follow-up management system to settle these orders, deliveries and payments, and confirm them upon customer request. Proceed.

It is preferable that the above-mentioned specific steps of the steps of the electronic commerce method of the present invention consisting of such a series of processes are implemented as follows.

In the sales registration step (A3), the sales registration method includes a sales condition registration method in which a seller inputs a selling price and a selling condition for a product that the seller wants to sell among preset products, and the seller adds a new product or a trademark product to the seller. New product registration approval method that is approved by the operator after registration request through input, and product specification, sales price, limited quantity, minimum order quantity, delivery area, and closing for a single product that the seller wants to sell among preset products. How to approve single product sales registration, which is approved by the operator after registration request through input of sales conditions including time limit, and how to change sales conditions that seller revises and deletes sales conditions including sales price from time to time without separate approval process. This can all apply.

In the method of providing quotation information at the request for quotation (A4) (A5), when the buyer selects a single product and executes a quotation view, the database registered for sale is processed to determine the lowest price and the average price of each supplier. Single product quotation providing method displayed on the screen, and when a buyer selects a plurality of products and executes a quotation view, the supplier selects a supplier from among suppliers for supply by processing a registered database and a member information database. The multi-product quotation providing method may be applied to display a list of items, detailed information such as quotations, and sales policy on the screen anonymously according to the priority of the purchase conditions.

The purchase method in the step (A6) of selecting a purchase method is a quotation purchase that selects an instant order method by selecting an optimal seller among general quote sellers or collective discount sellers among sellers in the quote information list provided to the buyer. The selection method and the bid purchase selection method of selecting the bid purchase method may be adopted.

In the online ordering step (A7), the purchaser who executes the quotation view executes the order by executing a one-click on a company to select while looking at the quotation information of the displayed multiple companies, thereby allowing the user to access the Internet. It allows you to purchase in an easy and uncomplicated way.

In the sales registration step (A3), by using the registered sales database to process the price trend for each product in a graph or table, etc., it is possible to easily grasp the order and sales trend of the product at a glance.

As described above, the present invention allows a plurality of suppliers and consumers to optimize sales and purchase decision-making through sales / purchase completion stages in various sales and purchasing methods, so that the suppliers and consumers can appropriate electronic commerce on the web. So,

In addition, it is possible to easily analyze and utilize the sales trend of the product, there is an effect that can be more actively circulating popular products circulating on the Internet.

Claims (9)

A service registration step (A1) in which the operator registers in the central server a product master database including a sales method process of the system, sales by sales method, purchase conditions, and handling product group; A selling method selecting step (A2) of selecting a selling method which is a service provided from the master database by a seller accessing the system through the Internet; A sales registration step (A3) in which a seller registers a sales intention by selecting a product to be sold according to a selected sales method and inputting and providing a sales condition; A quotation requesting step (A4) in which a purchaser accessing the system through the Internet selects an item to be quoted from the items provided in the master database and requests a quotation; A quotation providing step (A5) of selecting a best seller among available sellers by combining the database registered in the sales registration step (A3) in the operator system and showing the list and the quotation to the buyer; A purchase method selection step (A6) in which a buyer selects a purchase method suitable for a purchase condition by using the quotation information acquired in the quote providing step (A5); An online ordering step (A7) in which a buyer selects an optimal seller among the sellers who have provided the quotation information and makes an order online; Internet e-commerce method for the optimization of sales and purchase, characterized in that the selected seller consists of a series of processes including the step (A14) of receiving the order and order information through the order information database of the central server The method of claim 1, In the selling method selection step (A2), the selling method that can be selected by the seller who wants to sell the goods is a quotation sale for permanent sale of the seller's handling products, and a limited discount sale for the focused sale of a specific item ( Ding sales), and bidding sales to sell the buyer's purchase bid application, In the purchase method selection step (A6), the purchase method that the buyer can select includes a quotation purchase and a limited discount sale selection purchase that select an immediate order method by selecting an optimal company among the vendors in the provided quotation information list that meets the purchase conditions. The Internet e-commerce method for optimizing the sale and purchase, characterized in that the bid purchases to choose a bidding purchase method. The method of claim 2, The bid sale A bid application step (A8) of applying for bidding by inputting and providing purchase information and conditions for goods to be purchased when a buyer wants to purchase in a bid purchasing method in addition to the purchase method through the quote information; Bid approval step (A9) for approving the bid application by comparing the purchase conditions, such as the purchase amount, quantity, etc. when the bidder of the buyer with a predetermined criterion; Calculating a bidding criterion that satisfies the purchase condition for which the bid is applied and calculates an optimal condition among the registered bids as a bidding reference price (A10); Notifying a bid participation to a seller who satisfies the bid purchase condition among the companies that have registered the sale condition in the system (A11); Bidding disclosure step (A12) to disclose the bid application conditions and bid standard price through a web browser of the system; An internet e-commerce method, characterized in that the successful bidder selection step (A13) of selecting the best bidder who satisfies the purchase conditions of the buyer among the sellers who participated in the auction after the bidding. The method of claim 1, The method of registering sales in the sales registration step (A3), A selling condition registration method in which a seller inputs a selling price and a selling condition for a product among which a seller wants to sell; A new product registration approval method in which a seller receives approval of an operator after a registration request through input of a new product or a trademark product; The seller approves the operator's approval after registration request by entering the sales conditions including the product specification, selling price, limited quantity, minimum order quantity, delivery date, deadline, etc. Receiving a single product sales registration approval method; How to change the terms of sale for which Seller amends or deletes the terms of sale including the sale price from time to time without a separate operator approval process; Internet e-commerce method for sales and purchase optimization, characterized in that at least one of. The method of claim 1, The method for providing quotation information in the quotation providing step (A5) according to the quotation request in the quotation request step (A4), A single product quotation providing method of processing a database registered for sale when a buyer selects a single product and executes a quotation view, and displays the lowest price and the average price of each supplier on the screen; When a buyer selects a plurality of products and executes a quotation view, the supplier registers a supplier from among suppliers who wish to supply by processing the database registered in the sales and the member information database, and details of the list of the suppliers, the contents of the quotation, and the sales policy. A multi-product quotation providing method for displaying information on the screen anonymously by priority according to purchase conditions; Internet e-commerce method for sales and purchase optimization, characterized in that at least one of. The method of claim 1, The order in the online ordering step A7 is performed by a method of executing an order by one-clicking a seller to select while viewing the quotation information of the displayed multiple companies by the buyer who executed the quotation view. E-commerce method for optimizing sales and purchases. The method of claim 1, In the sales registration step (A3), the Internet e-commerce method for the optimization of sales and purchase, characterized in that the processing of the price trend for each time point according to the product using a database registered sales and utilizes. A service registration step (A1) in which the operator registers in the central server a product master database including a process for a bid sale method of the system, a bid sale method, a bid purchase condition, and a handling product group; A sales registration step (A2 to A3) in which a seller connected to the system via the Internet selects a product to be sold for bidding and inputs a bid selling condition to register a sales intention; A bid application step (A8) of applying for bidding by inputting and providing purchase information and conditions for goods to be purchased by the buyer; Bid approval step (A9) for approving the bid application by comparing the purchase conditions, such as the purchase amount, quantity, etc. when the bidder of the buyer with a predetermined criterion; Calculating a bidding criterion that satisfies the purchase condition for which the bid is applied and calculates an optimal condition among the registered bids as a bidding reference price (A10); Notifying a bid participation to a seller who satisfies the bid purchase condition among the companies that have registered the sale condition in the system (A11); Bidding disclosure step (A12) to disclose the bid application conditions and bid standard price through a web browser of the system; A bidder selection step (A13) to select the best bidder who satisfies the purchase conditions of the buyer among the sellers who participated in the bidding after the bidding to place an order as a successful bidder (A13); Internet e-commerce method for the optimization of sales and purchase, characterized in that the selected seller consists of a series of processes comprising the step (A14) of receiving the order and order information through the order information database of the central server In the Internet e-commerce system for commerce between the buyer and the seller consisting of the user terminal, the Internet network, the seller and buyer interface, the operator host, and the internal network for the seller and the buyer's web access, The operator host includes a database server including a member information database, a quotation sales database, a limited discount sales (sold sale) database, a bidding database, a product master database, an order information database, a settlement information database, and a user history database. The seller provides the information in a form that allows the seller to search the product master database such as the condition of the sale and the product group, including the quotation sale, last sale, bid sale, etc. The sales and purchase optimization, characterized in that provided by the information to select the conditions for a number of purchase methods, such as the procurement purchase, general discount purchase, bid purchases so that the goods in the form required by using the quote information Internet e-commerce system for Tem.