KR20020006171A - Electronic commerce system and method for providing purchase decision making function - Google Patents

Abstract

PURPOSE: An electronic commerce system and a method for providing purchase decision making function are provided so that the electronic commerce can be activated by providing the purchasing deciding function, professional information, option information, attached article information and guaranty information to purchasers. CONSTITUTION: A member database(110), a supply company database(120), an article group database(130), an article information expert database(140), an article supply database(150), a transaction database(160), an electronic commerce server(200), an Internet(400), an authentication server(500), a supply company terminal(600), a purchaser terminal(700) and a general user terminal(800) compose the electronic commerce system. The electronic commerce server(200) is a server computer for providing an Internet web service. Here, the electronic commerce server(200) is connected to the Internet(400) for performing the TCP/IP communication. In addition, the electronic commerce server(200) communicates with a payment server(500) through the Internet(400). The supply company terminal(600), the purchaser terminal(700) and the general user terminal(800) also access the electronic commerce server(200) through the Internet(400).

Description

Electronic Commerce System and Method for Providing Purchase Decision Making Function

The present invention relates to an electronic commerce, more specifically, to provide a customer decision to purchase a product that meets the purpose by providing professional information according to the purpose to purchase to customers who want to purchase the product It relates to a commerce system and method.

An example of a consumer's product purchase step according to a conventional embodiment will be described with reference to FIG. 1. First, the customer recognizes the need to purchase a product (S10). Then, the customer searches for information on the product to be purchased in various ways (S20). In this case, the customer evaluates alternatives associated with the product to be purchased (S30). In this way, the customer who has been searching for information and evaluating alternatives has a willingness to purchase a product and makes a purchase (S40). Finally, the customer shows an action according to satisfaction with the purchased product, for example (S50).

Recently, thanks to the development of the Internet, electronic commerce through online is being activated. In this way, a so-called shopping mall for electronic commerce through the Internet has product information in a web server, and when a customer orders a product, a predetermined payment process is performed to deliver the product.

At this time, the customer who wants to purchase the product selects the product according to the product information provided from the web server and places an order.

However, the provision and selection of such product information has the following problems.

First, it is difficult to know general professional information necessary for purchasing a product in a conventional shopping mall. For example, if you want to purchase an office color copy machine, you will not be provided with information on what to consider, what to consider, and what to refer to. Therefore, in this case, the purchase is made according to the subjective judgment of the buyer.

Second, the conventional shopping malls provide the specifications of products to be purchased in a uniform manner. That is, since the information on the specification of the product provided to the customer from the conventional shopping mall is provided after the product is selected, the product search based on the product specification cannot be performed.

Thirdly, it is not easy to select an option for the product to be purchased. That is, in the case of a copying machine, for example, a sorter (Sorter) and an automatic sheet feeder for sorting copies are provided as options, but such an option cannot be easily selected.

Fourth, there is a problem that it is difficult to identify the goods carried in the goods to be purchased. For example, when a copier is purchased, a consignment product such as toner or a copy paper is generally provided free of charge, and a conventional shopping mall does not provide information about the consignment product or a consignment product at all. have.

Fifth, if the goods to be purchased are provided with the goods, the buyer needs to be able to select them. For example, when a car is purchased, it is provided with a commodity (so-called service item) such as a duster, a room mirror, and a rug, which needs to be freely selected by the buyer within a predetermined amount.

Sixth, the conventional shopping mall does not provide a guarantee for the product to be purchased. In other words, the shopping mall operator needs to ensure the guarantee for the product that the buyer purchases.

Accordingly, an object of the present invention is to provide an electronic commerce system that provides a purchasing decision function capable of providing general technical information necessary for purchasing a product as proposed to solve the above problems.

In addition, an object of the present invention is to provide an electronic commerce system that provides a purchasing decision function that enables the inquiry of the product information in a variety of ways subject to the specifications of the product.

Furthermore, an object of the present invention is to provide an electronic commerce system that provides a purchasing decision function for easily selecting an option for a product to be purchased.

In addition, an object of the present invention is to provide an electronic commerce system that provides a purchasing decision function that can provide information of the goods carried in the goods to be purchased.

In addition, an object of the present invention is to provide an electronic commerce system that provides a purchasing decision function that can select the commodity to be purchased.

Lastly, an object of the present invention is to provide an electronic commerce system that provides a purchase decision function for providing warranty information on a product.

1 is a view showing an example of a product purchase step of a consumer according to a conventional embodiment,

2 is a flowchart illustrating an example of a processing step from a product database registration to a transaction in an electronic commerce system providing a purchase decision function according to an embodiment of the present invention;

3 is a block diagram schematically showing the configuration of an electronic commerce system that provides a purchase decision function according to an embodiment of the present invention;

4 is a block diagram showing in detail the configuration of the e-commerce server shown in FIG.

5 is a view showing in detail the structure of the database shown in FIG.

6 is a flowchart showing in detail the product information registration step shown in FIG.

7 is a view showing an example of a product group registered in the product group database shown in FIG.

8 is a flowchart showing in detail a service step provided by a purchase decision control unit shown in FIG. 4;

9 is a view showing an example of data provided in the option list display step shown in FIG.

FIG. 10 is a flowchart showing in detail the option list display step shown in FIG. 7;

FIG. 11 is a diagram illustrating an example of a list provided in a recommendation list display step shown in FIG. 8;

12 is a view showing an example of the information provided in the purchase report, packaged goods, delivery, warranty history display step shown in FIG.

FIG. 13 is a diagram illustrating another example of the sent item list display in FIG. 12.

<Description of Symbols for Main Parts of Drawings>

110: member database 120: supplier database

130: product group database 140: product information expert database

150: commodity supply database 160: transaction database

200: e-commerce server 400: the Internet

500: Certificate Server 600: Supplier Terminal

700: Buyer Terminal 800: Nonmember Terminal

According to a feature of the present invention proposed to achieve the above object, the electronic commerce method for providing a purchasing decision function comprises the steps of registering the expert information for the product information, receiving a company to sell the product, Receiving information of a product to be sold from a registered company, providing the registered product information expert data to a customer who wants to purchase the product, and receiving product information ordered by the customer from the provided product information expert data And receiving payment for the ordered product, registering transaction information such as ordered product information and payment information, and notifying delivery of the ordered company based on the registered transaction information.

According to a feature of the present invention proposed to achieve the above object, an electronic commerce system that provides a purchasing decision function is a product information expert database for registering expert information on product information, information of companies to sell products A supplier database to register, a product supply database to register information of a product to be sold from a company registered in the supplier database, a member database to register information of a member to purchase a product, traded product information and company information, and Transaction database to register the member information, the information of the company to sell the product is received and stored in the supplier database, the information of the product to be sold from the company is received and registered in the product supply database, and the product is purchased To Receiving the information of members and transactions registered in the database, to accept members who wish to purchase the product the product information specialist after ordering provides goods information which is registered in a database and database products supplier registers the transaction database.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 to 10.

2 is a flowchart showing an example of a processing step from a product database registration to a transaction in an electronic commerce system providing a purchase decision function according to an embodiment of the present invention.

In order to provide such a service, product information for providing expert services is first registered in a product information expert database (S200). Such product information is composed of information of each product specification provided by the manufacturer classified by item, technical information provided by the expert group, meaning of performance, comparison information, and the like.

Subsequently, information on the commodities that can be traded is registered (S300). That is, in this step, the registered product information is information provided from a supplier, and information such as price and quantity of the product is registered.

As such, when both the product information expert database and the product supply database are registered, the information is provided to the buyer (eg, a member). Therefore, the buyer may receive the product purchase decision service and select the desired product and order it (S400). That is, the information provided to the buyer is composed of decision items provided according to various conditions for determining the purchase.

Subsequently, payment is made for the selected product (S500).

When all payments are made in the above, it registers the transaction information, such as order, delivery, payment (S600). When the transaction information is registered as described above, the order information and delivery information of the goods ordered by the buyer are notified to the supplier (S700).

The supplier then delivers the goods to the buyer in accordance with the order and delivery information.

3 is a block diagram schematically illustrating a configuration of an electronic commerce system that provides a purchase decision function according to an embodiment of the present invention. In the drawings, reference numeral 110 is a member database, 120 is a supplier database, 130 is a product group database, 140 is a product information expert database, 150 is a product supply database, 160 is a transaction database, 200 is an e-commerce server, 400 is the Internet, 500 Silver server, 600 supplier terminal, 700 buyer terminal and 800 non-member terminal.

As shown in the figure, the e-commerce server 200 is connected to a database. In the drawing, the configuration of the database is illustrated separately from the e-commerce server so that the configuration is well represented, but may be integrated into the e-commerce server 200. The electronic commerce server 200 is a server computer configured to provide an Internet web service. The server is connected to the Internet to perform TCP / IP communication.

The e-commerce server 200 communicates with the payment server 500 through the Internet.

The supplier terminal 600, the purchaser terminal 700, and the non-member terminal 800 are connected to the electronic commerce server 200 through the Internet.

4 is a block diagram showing in detail the configuration of the e-commerce server shown in FIG. In the drawing, reference numeral 210 is a database management system, 220 is a product supply information registration control unit, 230 is a product order information registration control unit, 240 is a supplier registration control unit, 250 is a purchase decision control unit, 260 is a payment control unit, 270 is a transaction control unit, Reference numeral 280 denotes a member register, 290 denotes a network, 300 denotes a logon controller, 310 denotes a supplier service controller, 320 denotes a main service controller, and 330 denotes a member service controller.

As shown in the figure, the main service control unit 320 controls the supplier service control unit 310 and the member service control unit 330. The supplier service control unit 310 controls a service provided to a supplier, and the member service control unit 330 controls a service provided to a member (buyer).

Here, the supplier service control unit 310 is configured to be linked to the product supply information registration control unit 220, the product order information registration control unit 230, and the supplier registration control unit 240. The product supply information registration control unit 220 to register the product information that can be provided by the supplier. At this time, the registered product information is registered in the product supply database 150. In addition, the product order information registration control unit 230 controls the buyer to look up the product order information ordered by the supplier. At this time, the product order information is retrieved from the transaction database 160 is retrieved. In addition, the supplier registration control unit 240 controls the non-subscribed supplier to register as a product supplier. At this time, the information of the supplier to be input is registered in the supplier database (120).

Meanwhile, the member service controller 330 is configured to be linked to the purchase decision controller 250, the payment controller 260, the transaction controller 270, and the member register 280. The purchase decision control unit 250 controls the member to provide product information so as to determine the purchase intention of the product to be purchased. The product information provided at this time is provided from the product information expert database 140. And the payment control unit 260 controls the member to pay the price of the selected product. At this time, the payment of the member is made through the payment server 500. The transaction control unit 270 controls the member to register the ordered product information, delivery information, and payment information. At this time, the member's transaction history is registered in the transaction database 160. Member registration unit 280 controls the non-members to register as a member. At this time, the member's registration information is registered in the member database 110.

As shown in the figure, each control unit 220 to 280 accesses the database 110 to 160 by the database management system 210.

5 is a view showing in detail the structure of the database shown in FIG. 5 (A) is a member database, FIG. 5 (B) is a supplier database, FIG. 5 (C) is a product group database, FIG. 5 (D) is a product information expert database, and FIG. 5 (E) is a product supply. 5 (F) shows the structure of the transaction database.

The member database 110 is composed of, for example, a member code, member ID, member password, name, telephone number, address, and email field.

In addition, the supplier database 120 is composed of fields such as company code, company ID, company password, company name, representative, telephone number, address, email.

The product group database 130 is composed of fields such as a product group code and a product group name.

The product information expert database 140 may include, for example, a product code, a product group code, a model number, a product name, a manufacturer (brand), a country of origin, a decision item (1 ~ n), general expert information, a product option, a bundled product, a warranty, and the like. It consists of fields.

The product supply database 150 is composed of fields, such as a supply product code, a product code, a company code, a supply unit price, a supply quantity, and a sales quantity.

The transaction database 160 includes, for example, fields such as a transaction code, a supply product code, a company code, a member code, a quantity, an amount, a payment date, a payment method, a delivery destination, a transaction date, a transaction authentication number, and the like.

6 is a flowchart showing in detail the product information registration step shown in FIG.

First, the electronic commerce server 200 displays the product group so that the administrator can select the product group (S210). In this case, the provided product group is extracted from the product group database 130 and displayed. Then, the manager selects the product group of the product to input the information in the displayed product group (S220).

Subsequently, the electronic commerce server 200 displays a decision item list to select a decision item of the selected product group (S230). For example, as shown in FIG. 5 (D), the decision items are composed of a plurality of items (1 to n).

Then, the manager selects a decision item to input data from a plurality of decision items (S240). That is, the manager selects an item to input data from decision item 1 to decision item n.

The manager inputs data to the selected decision item (S250). Data input of the decision items as described above is made until all the necessary information is input (S270).

When the data of the decision item for one product is input as described above, the input data is registered in the product information expert database 140 (S280).

Such a product information expert is made until all the registration for a predetermined product is made (S290).

FIG. 7 is a diagram illustrating an example of a product group registered in the product group database shown in FIG. 3.

As shown in the figure, all products belong to a product group, and each product group is assigned a product group code. For example, an office copier belongs to a copier group, a facsimile to a fax group, a TV to a TV group, a refrigerator to a refrigerator group, a washing machine to a washing machine group, and a laser printer to a laser printer group.

The product code of the copier group is PG001, the product code of the fax group is PG002, the product code of the TV group is PG003, the product code of the refrigerator group is PG004, the product code of the washing machine group is PG005, the product code of the laser printer group is PG006. It is registered.

As such, each product belongs to a product group, and each product group has a unique product code.

Each product group may be divided into categories such as office equipment and home appliances.

FIG. 8 is a flowchart showing in detail a service step provided by a purchasing decision control unit shown in FIG. 4.

First, the electronic commerce server 200 displays a product group so that a member (buyer) can select a product group (S412). Such product group data is extracted from the product group database 130. Such a product group is as described with reference to FIG.

Then, the member selects a random product group from the displayed product group (S414). Information on the selected product group is transmitted from the buyer terminal 700 to the e-commerce server 200 side.

Subsequently, the electronic commerce server 200 provides the general general information about the product group selected by the member to the member (S415). The general professional information includes information on important matters determined by experts in purchasing a product belonging to a product group. That is, the member will be assisted in selecting the product by referring to the general professional information on the product group provided as described above. The general expert information is extracted from the product information expert database 140 and provided.

Subsequently, the electronic commerce server 200 displays a list of decision items for the product group selected by the member (S416). The list of decision items consists of, for example, the title or field name of the decision item. The decision items are configured differently according to the product group. For example, in the case of office equipment, the decision items are composed of items such as price, after-sales service, operating cost, compatibility, and scalability.

Then, the member designates the priority according to the items that are important when purchasing the product from the listed decision items (S418). If the member recognizes the price as the most important item in the product purchase, the priority of the item corresponding to the price among the decision items is set highest.

After specifying the priority as described above, the member selects a decision item to input a value of a condition to be queried from the displayed decision item list (S420). For example, if a member wants to enter a desired price range, the member selects a price item from the decision items. The selected decision item is transmitted from the buyer terminal to the electronic commerce server 200 side.

Then, the e-commerce server 200 displays a list of options that the member can select within the selected decision item (S422). The method of providing the option list is as shown in FIG. 9. In order to provide such an option list, the electronic commerce server 200 filters only records of the same product group code from the product information expert database 140 for the selected product group, and then extracts the option values and provides them as a list. . For example, if a member selects a copy machine (PG001) in a product group, only the record of which the value of the product group code field of the product information expert database 140 is PG001 is filtered.

When the option list is displayed in this way, the member selects or inputs an option value of a desired condition from the displayed option (S424).

A member can designate values for all items for which he / she wants to enter (select) the decision items displayed in the above manner.

As described above, when the member inputs all the conditions for the decision item (S426), the e-commerce server 200 filters only the records satisfying the input (selected) condition among the records of the filtered product group code. (S428). At this time, the product information expert database 140 is processed as in the above.

Subsequently, the electronic commerce server 200 provides the purchaser (member) with respect to the filtered product data (query) in the form of a recommendation product list (S430). Such a recommendation list is as shown in FIG. The buyer selects a product to purchase from the list of recommended products provided as described above. This selection of goods is made by, for example, selecting the model number of the goods. The model number of the selected product is transmitted from the buyer terminal to the electronic commerce server 200.

Then, the electronic commerce server 200 displays the purchase report, the shipping item list, the delivery, and the warranty for the selected model number on the purchaser terminal. The displayed information is as shown in FIG. The purchase report allows the purchaser (member) to select the quantity of the product and the option of the product, and displays the total amount according to the input quantity and the unit price. The enclosed article list displays items provided by enclosing the selected article.

If the member wants to purchase the selected product as described above, the member clicks the Add to cart button. In this way, the information on the product selected for purchase is all stored in the so-called shopping cart of the e-commerce server 200 (S434). As described above, the buyer (member) selects all the products to be purchased and puts them in the shopping cart.

Finally, the e-commerce server 200 processes the transaction so that the buyer can purchase for the goods put in the shopping cart (S438). The transaction processed information is stored in the transaction database 160.

FIG. 9 is a diagram illustrating an example of data provided in the option list display step shown in FIG. 7. For example, when the copier (product group code PG001) is selected in the product group illustrated in FIG. 7, only the products of the corresponding product group are filtered by the product information expert database 140.

Decision item n in the figure represents a price item, for example. The price of the decision item represents, for example, ten thousand won. Therefore, it can be seen that the price of the copier in the copier group ranges from 1 million won to 4 million won.

For this predetermined decision item n, the option list is composed of a selection button, an option, and a count as shown in the figure. The selection button is a button for selecting an option, the option is a value representatively representing the decision item n value, and the count represents the number of products included in the option. That is, it can be seen that four copiers priced at 1 million won, 4 copiers at 2 million won, 2 copiers at 3 million won, and 1 copier at 4 million won are registered.

From the list of options indicated above, the purchaser can select the copier of the desired price range. In this case, for example, the case of selecting a copier of 1 million won is shown as an example.

FIG. 10 is a flowchart showing the option list display step shown in FIG. 7 in detail.

First, the electronic commerce server 200 filters only records of selected decision items of the selected product group (S420a).

Subsequently, the electronic commerce server 200 counts the data in the decision item for each group (S420b). For example, as shown in Figure 9, how many models of copiers priced at 1 million won, how many models of copiers 2 million won, how many models of copiers 3 million won, 4 million copiers Each model counts how many.

When the group count is performed on the data in the decision item as described above, the data in the decision item is indexed for each group (S420c).

Subsequently, the electronic commerce server 200 displays the group-specific data and the count value in the form of a question screen that the buyer can select (S420d).

FIG. 11 is a diagram illustrating an example of a list provided in the recommended product list display step illustrated in FIG. 8.

As shown in the figure, the recommendation product list displays specifications for each model by manufacturer (brand). Here, the case where the recommended product is a copy machine will be described as an example. Here, an example is shown in the case where the purchaser selects the use of the copying machine for office work and the monthly copying amount is 3000 sheets.

The recommended product list is provided with information in the order of X company, S company, and L company. For example, the X company's product models include 330, 320 and 310, and the S company's product models are NT-4010, NT-4020, NT-4040, and the L company's product models are LP-2020, LP-2030 and LP-. There is 2040.

The information provided by the copier for each manufacturer's model consists of speed, tray, toner, drum, fusing, operating costs, noise, ozone emissions, price and options.

When the list of recommended products meeting the conditions is displayed as described above, the buyer clicks the desired model number. Then, as shown in FIG. 12, the purchase report, the packaged goods, the delivery, and the warranty information are provided to the purchaser.

FIG. 12 is a diagram illustrating an example of information provided in the purchase report, the packaged goods, the delivery, and the warranty history display shown in FIG. 8.

As shown in the figure, the purchase report is composed of a selected model number display item, a quantity input field, a desired delivery date, a selection option, a main body price, an option price, a sum, and a remarks column. Here, the buyer inputs the quantity of the product to purchase in the input box, inputs the desired delivery date, and selects the option displayed in the option box. Then, the e-commerce server 200 extracts the supply unit price (2.6 million won) information registered in the product supply database 150, multiplies by the quantity and outputs the sum value (for example, 3 million won) by adding up with the option price (400,000 won) .

In addition, the list of consignments displays the articles provided in the selected model. Here, for example, one toner of 300 g, one copy paper (A4, B4, B3), and one cabinet are provided.

Then, delivery delivery date, delivery location, delivery cost, warranty period, warranty contact number and transaction authentication number for the selected model are provided. In the above, the warranty information includes information such as a period during which a warranty can be obtained for a product to be purchased and a place (contact information). The transaction authentication number is composed of a number that will authenticate the transaction.

If the purchaser agrees to the terms of the purchase of the desired item as described above, the buyer clicks the add to cart button. Then, the information such as the product information and the transaction conditions are stored in the so-called shopping cart of the electronic commerce server 200.

FIG. 13 is a diagram illustrating another example of the sent item list display in FIG. 12. In FIG. 12, the enclosed article is unilaterally provided, but here, the user selects it.

As shown in the figure, the enclosed item includes one 300g toner, copy paper A4, copy paper B4, copy paper A3, a cabinet, a document transport device, a holder, and the like.

Then, the buyer selects the desired item, and the electronic commerce server 200 may be configured to make the item selection only within a predetermined price. Accordingly, the purchaser can select and order the consignment items provided within a predetermined price limit.

According to the present invention, it is difficult to know general professional information necessary for purchasing a product in a conventional shopping mall, provides a specification of a product to be purchased in a uniform manner, and it is not easy to select an option for a product to be purchased. It is difficult to identify the goods shipped to the product to be purchased, and if the goods to be purchased are provided with the goods, the buyer needs to be able to select the goods to be shipped, and they cannot solve the problem of providing a guarantee for the goods to be purchased. As a purchase decision function, specialized information, option information, bundled goods information, and warranty information can be provided.

Claims (18)

In the way of e-commerce over the network, Registering expert information on product information; Receiving a company which intends to sell the product; Receiving information of a product to be sold from the subscribed company; Providing the registered product information expert data to a customer who wants to purchase a product; Receiving product information ordered by a customer from the provided product information expert data; Receiving payment for the ordered goods; Registering transaction information such as ordered product information and payment information; And providing notification of delivery to the ordered company based on the registered transaction information. The method of claim 1, The registering of the product information expert data may include displaying a product group; Receiving a product group; Listing decision items of the selected product group; Receiving a decision item; Receiving data; And a step of registering the input data in the product information expert database. The method of claim 1, Registering data of a product to be sold includes providing product information to select a product to be sold; Receiving information on the selected product; And a step of registering the input information of the commodity in a commodity supply database. The method of claim 1, The providing of the product purchase decision service may include providing a list of product groups; Receiving a selected product group from the provided product group list; Providing general specialized information useful for purchasing a product of the selected product group; Listing decision items of the selected product group; Receiving a priority among decision items; Selecting a decision item to input a condition from the listed decision items; Grouping the data stored in the selected decision item and providing it as an option list; Receiving an option selected from the provided option list or receiving an optional value as an option; Retrieving product information meeting the conditions; Providing the retrieved product information as a recommendation product list; Allowing a user to select a product to be purchased from the provided recommendation product list; An electronic commerce method providing a purchasing decision function, characterized in that it comprises a transaction processing to order the selected product. The method of claim 4, wherein The step of allowing the user to select the desired product to purchase comprises the step of receiving a detailed purchase history when the product is selected, the electronic commerce method providing a decision making function. The method of claim 4, wherein The step of enabling the user to select the desired product to purchase comprises the step of providing information of the goods carried in the selected product electronic commerce method for providing a purchase decision function. The method of claim 4, wherein The step of enabling the selection of the goods to be purchased is an electronic commerce method for providing a purchasing decision function, characterized in that it comprises the step of selecting the goods to be sent within a predetermined limit amount. The method of claim 4, wherein The step of enabling the selection of the product to be purchased is an electronic commerce method for providing a purchasing decision function, characterized in that it comprises a step of providing the delivery information of the selected product. The method of claim 4, wherein The step of enabling the selection of the desired product to purchase comprises the step of providing a guarantee history of the selected product electronic commerce method for providing a purchasing decision function, characterized in that configured. The method of claim 4, wherein The serving as the option list may include filtering only selected decision items; Counting data in the filtered decision item by group; Indexing the grouped data; And providing the grouped data and an option to select a count. In the way of e-commerce over the network, A product information expert database for registering expert information about product information; A supplier database for registering information of a company intending to sell a product; A product supply database for registering information of goods to be sold from a company registered in the supplier database; A member database for registering information of a member who wants to purchase a product; A transaction database for registering the traded product information, the company information, and the member information; Receive the information of the company to sell the product to store in the supplier database, receive the information of the product to sell from the company to register in the product supply database, receive the information of the member to purchase the product And an electronic commerce server that registers in a transaction database, receives product information registered in the product information expert database and a product supply database to a member who wants to purchase a product, and registers the order in a transaction database. Electronic commerce system that provides purchasing decision making. The method of claim 11, The product information expert database provides a purchasing decision function, characterized in that configured with category information according to a predetermined classification. The method of claim 11, The product information expert database provides a purchasing decision function, characterized in that configured with the product group information according to a predetermined product group. The method of claim 11, The product information expert database provides a purchasing decision function, characterized in that it comprises a plurality of decision items for storing the professional information about the product. The method of claim 11, The product information expert database provides a purchasing decision function characterized in that it comprises a plurality of decision items for storing the specification information for the product. The method of claim 11, The product information expert database provides a purchasing decision function, characterized in that for storing the option information of the product. The method of claim 11, The product information expert database provides an electronic commerce system providing a purchase decision function, characterized in that to store the information of the goods sent. The method of claim 11, The product information expert database provides a purchasing decision function, characterized in that for storing the warranty information for the product warranty.