KR100357798B1 - Computer network open architecture of the buyer-enterprise for business to business electronic commerce and purchase information management method - Google Patents

Abstract

The present invention provides an open structure of a computer network system of a purchasing company for electronic commerce between a company and a company, and a method of managing purchase information using the same. More specifically, individual clients of the purchasing company collect and store information about products from various sellers. In this regard, the present invention relates to an open structure of a computer network of a purchasing company that can purchase information by sending information on a desired product to an approver and purchases the product, and integrates management of information on the purchase. And individual client computers and approver computers, wherein the server and / or individual client computers are connected to an external computer network, and the server or individual client computers are provided with Save Order Information In addition, an application is installed that transmits the order information to the approver's computer to allow the approver to determine the final purchase item. The application is connected with a company information system such as a company-wide resource management system of the purchaser. You can systematically manage your company's product purchasing information.

Description

Computer network open architecture of the buyer-enterprise for business to business electronic commerce and purchase information management method}

The present invention provides an open structure of a computer network system of a purchasing company for electronic commerce between a company and a company, and a method of managing purchase information using the same. More specifically, individual clients of the purchasing company collect and store information about products from various sellers. It is about the open structure of the computer network of the purchasing company, which can transmit the information about the desired product to the approver and purchase the product after receiving approval.

Electronic commerce (hereinafter referred to as EC), which is widely spread with the spread of the Internet in recent years, is largely referred to as Business to Customer EC (B2C EC) and Business to Company (Business to Business). Business EC (hereinafter referred to as B2B EC). The term B2C EC refers to e-commerce where the supplier of the good is a company and the buyer of the good is an individual, and the B2B EC means that both the beneficiary and the buyer of a good are enterprises.

In the early days of e-commerce, B2C was the mainstream, but recently B2B e-commerce has been increasing rapidly. According to the data of Forrester Research, B2B e-commerce was $ 120 billion by 2000, which is 15 times of B2C e-commerce. It is expected to reach. An important factor in business-to-business electronic commerce is as part of BRP, efficient supply chain management (SCM), such as efficient internal and external operations and short delivery times, reduced transaction costs, and secure security. E-payment, efficient linkage with the CIS. In particular, it is important that each member of the purchasing company making a purchase should be able to process the purchase business in real time.

Despite these demands, until now, e-commerce has been focused on the supplier's environment of the goods, that is, the goods, goods or information are displayed on the supplier's server, and the buyer searches for the goods and selects them for purchase. It was stored in the storage space provided (so-called cart), and the supplier traded the goods by performing payment service for the goods stored in the cart.

According to the supplier-oriented e-commerce method, the information on the purchased goods (half) is stored in the web server of each supplier (seller), so that when the buyer buys the goods through multiple shopping malls, the purchase information of the buyer is It is difficult to manage purchase information efficiently from the buyer's point of view because it is scattered among several seller servers.

In addition, in order to rationalize the business processes of each company, as part of the management innovation (BRP) in recent years, the enterprise-wide resource management system (ERP), workflow, groupware, accounting information system, production system, Although the company is trying to rationalize its business by introducing the Corporate Information System (CIS), such as the decision support system, the technology for efficiently integrating the information system of the company with the EC has become necessary in relation to electronic commerce. There is little research on this.

In view of the above, in the supplier-oriented electronic commerce method, the purchase information purchased by each member of the purchasing company is compared with the corporate information system (CIS) or enterprise resource planning system (ERP) of the purchasing company. It is difficult to link. That is, the information on the goods that each member of the purchasing company wants to purchase is stored in the server of each shopping mall (sales company), so that the purchase information could not be collectively managed in the corporate information system of the purchasing company. The time to get a final purchase approval is excessive and the procedure is tricky. Therefore, there is a need for a means of linking various current enterprise information systems suitable for electronic commerce.

The integration technology of enterprise information system and e-commerce that is currently in progress is an inside-out approach that extends the ERP package provided by the ERP solution provider to the EC and the EC solution provider. Although the application-centered EC is an out-of-the-box method of integrating ERP, both of the above technologies are too dependent on each solution provider and are not economical in terms of cost. There was this.

In addition, in modern electronic commerce, a certification system is used to publicly verify the identity of sellers and buyers. An application program called "is inconvenient to be installed in a client (buyer) computer, and when purchasing from several sellers, there is a hassle to input user registration information for each seller server connection.

Accordingly, the present invention is to provide a computer network structure of a purchasing company for electronic commerce between enterprises to overcome the above-mentioned disadvantages, each individual client computer on the purchasing company computer network, one of the server of the purchasing company purchases An application program is installed that is responsible for storing the information, authenticating the seller, registering a member on the seller site, and delivering the information to the approver (or ERP system).

SUMMARY OF THE INVENTION An object of the present invention is to provide a computer network open architecture for a purchasing enterprise for providing an electronic commerce method between a company and a company that can interoperate with an enterprise information system and / or an enterprise resource management system.

It is another object of the present invention to provide a computer network system open structure of a purchasing company for electronic commerce between companies, in which purchasing information provided by various selling companies can be collectively stored and managed on the purchasing company's computer network. .

Still another object of the present invention is to provide a certification of a selling company on a purchasing company side in an electronic commerce between a company and a company, and the buying company can automatically register a user with various selling companies. It is to provide a computer network system open structure.

Another object of the present invention is to integrate and manage the product information provided by the various selling companies using the computer network of the purchasing company described above, and in real time to allow the approval process for the product purchase in conjunction with the corporate information system (CIS) It also provides a purchasing information management method that collectively stores and manages information about a company's purchasing activities.

1 illustrates an entire system including an open network architecture of a purchasing enterprise in accordance with the present invention provided for performing B2B e-commerce.

Figure 2 illustrates the flow of B2B e-commerce related information on the purchasing enterprise computer network according to the present invention.

3 is a flowchart of a procedure for performing B2B e-commerce using a computer network system of a purchasing company according to the present invention.

Figure 4 shows, by module, an application program installed in a server or an individual client of a purchasing enterprise computer network according to the present invention.

5A to 5C illustrate an example of a user interface of an application program used in the present invention.

6A and 6B illustrate information included in order information OI and purchase approval information AI by item, and FIG. 6C illustrates order information and purchase approval information created in an XML document.

A computer network system open structure of a purchasing company for achieving the object of the present invention as described above has the following configuration.

Server, an individual client computer and an Approver Computer connected to the server, wherein the server and / or the individual client computer are connected to an external computer network, and the server or individual client computer has one or more vendors. There is installed an application program for storing the order information of the desired product purchased from the store, and transmitting the order information to the approver computer to determine the final purchase item.

In addition, if an intra-company information system (CIS) such as an enterprise resource management system (ERP) or a corporate work / payment management system (Workflow system) is installed on the server, the application program is the enterprise management system, enterprise. In conjunction with the work and payment system, the approver makes the final purchase decision, and the result is stored and managed in the enterprise information system.

At least one of the approver, the in-house information system, and the application is a purchase request for the goods finally decided by the approver as the selling company, for example, electronically through an external payment agent service company. The final purchase is completed by performing the payment.

The server includes a series of application programs that run on the server, in addition to a server that is typically implemented in software, and connects and brokers each individual client of the purchasing company and the approver computer. It should be understood as a broad concept involving the system of. Such a server can be implemented using server programs provided in various ways according to operating systems such as DOS, windows ^TM , Linux ^TM , Unix and Macintosh. Examples include websites used in Windows, CERN, NCSA, and APPACH in TTPS and Unix.

The computer network inside the purchasing company may be a closed network such as a local area network (LAN) or a wide area network (WAN) for connecting specific clients, and the external computer network may be used by an unspecified public. It is preferred that it is an open computer network such as intranet. The server of a selling company is connected to an open external network such as the Internet.

The application program may receive the certification information of the seller in addition to the information about the product to be purchased, and perform authentication of the seller, for example, by receiving certification of a certification authority. In addition, the application program may store the user information of the purchasing company, and may have a function of automatically registering the user when a user registration request is made by the selling company.

The above-mentioned authentication information may be a certificate issued to a selling company and / or a purchasing company by a certification authority such as Verisign Inc., and this certificate is made of a unique authentication code. When an individual client requests the seller for information on a particular goods, the seller server adds and transmits its own certificate in addition to the information of the goods. In this case, proper encryption should be made in order to prevent leakage of the certificate and maintain security of the purchase information. In the present invention, the selling company encrypts the product information and its authentication information with, for example, a PKI (Public Key Infrastructure). This method encrypts the data using the Extensible Markup Language (XML) language, creates data in the Multipurpose Internet Mail Extension (MIME) format, and then transfers it using HyperText Transfer Protocol (HTTP). The transfer of purchase information within the purchasing company is also made through HTTP, and interworking with the enterprise information system for final purchase approval is directly or to the approver to the ERP by sending XML-based standard file via FTP (File Transfer Protocol) or HTTP. Is sent to. As such, between the purchasing company and the selling company, since the data is transmitted in HTTP to MIME format, no separate program module is required, and information can be exchanged with any of several selling companies. However, the encryption method, the file formation method and the file transmission method are not limited to the above-described forms, and any method may be used as long as it can transmit the purchase information and the authentication information of the selling company while maintaining appropriate security.

The application program installed in the form of client software (Client S / W) on the server or individual client computer of the purchasing company includes a parsing module that receives and analyzes order information (OI) sent by the selling company, and analyzes it. A security / authentication module for determining security of order information and authentication of a selling company based on the order information, a storage module for classifying and storing product information included in the order information, and the analyzed order information It consists of a delivery module for transmitting to the approving company or ERP and the purchase request for the approved product to the selling company, it may be further provided with a user profile management module. Such a "module" means a part of a program that exists for each function in the entire application program, and is also called a procedure (pricedure). Such an application program may be written in any programming language, and may be operated as an external helper program, or may be operated in a browser in the form of a plug-in.

When the application is installed on the purchasing company's server, an account is set up for each member of the purchasing company, and each member is executed in a form in which order information of the product to be purchased can be stored and managed in an account assigned to him. will be.

In addition, if necessary, the application program may be installed in a third web server connected to an external computer network, but the function of the application program is the same. That is, collect and store order information (OI) from various selling companies, deliver the information to the approver, or make a bid notice on the purchasing company's web server, and deliver the final purchase approval information (AI) to the selling company, Store and manage information on purchased goods in company information system such as ERP.

The function of each module will be described in detail as follows. First, the selling company (supplier mall, general shopping mall, mall of mall) hashes the order information (OI) according to the purchasing company's product order and electronically signs with the selling company's private key, In addition, MIME data written in XML language is transmitted to the purchasing company's server.

The parsing module of the application receives encrypted encrypted purchase information data (for example, PKI encrypted purchase information data of MIME type of XML language) and decrypts them by public key method. The security / authentication module checks whether the contents have not changed based on the decrypted information, and determines whether or not the selling company can be authenticated, for example, through a certification authority (CA) based on the attached selling company's certificate. After authentication of the selling company, the data of the analyzed data is classified and stored in the purchasing company server or individual client computer by the storage module. The individual clients compare the sorted and stored order information and finally select the desired product (goods) and transfer the information to the approver or ERP. Interworking with ERP for authorization consists of sending XML-based standard files via FTP, for example.

The order information sent by the selling company may include the invoice code, detail information including the Uniform Resource Locator (URL) where the goods are disclosed, the date and time of the order and the quotation. It contains information such as valid time and available payment methods.

The order information parsed by the application is sent to the approver via the enterprise information system, and the approver finally decides the product to purchase. After that, purchase approval information is formed on the basis of the final purchase decision and transmitted to the selling company. Such purchase approval information (AI) may include information such as an invoice code, an agreement such as yes / no about the quotation, a modified list in the quotation, and a payment method. Can be. In addition, the generation and delivery of such purchase approval information (AI) may be made by an approver or an ERP, or may be performed on a computer of an individual client (individual employee) who made a purchase request for the corresponding product. Payment for the goods to be purchased may be paid by the approver, the ERP, the purchasing company server, and the individual client in connection with the payment service provider, and the payment of the goods may be paid to the transaction bank of the selling company by credit card or electronic money transfer. Alternatively, as in the current seller-centered payment method, the financial information of the purchasing company may be encrypted and sent together with the purchase approval information (AI) to the selling company, and the selling company may pay through the payment agent service company.

Such order information (OI) and purchase approval information (AI) information must maintain security between the two parties. The solution to this problem is the certificate-based PKI method. In addition, attempts are being made to adopt XML as an interface for electronic commerce between companies and to perform digital signature in XML. However, this XML method has not been formalized yet, and it has to have a DTD (Document Type Definition) and a complicated syntax must be used. Therefore, the present invention intends to use a method that can easily maintain the security of information without requiring a DTD while using the basic code method of XML. That is, all document elements use tags in the same way as XML. At the beginning of the document, the list of tags to be authenticated in the document is defined using the <Contract_List> tag. Then, the data are combined in the order mentioned in this Contract_List, hashed, and then digitally signed. This digital signature is added using the tag <Digital_Signature>, and the certificate is enclosed using the tag <Certification>. Sending an XML-based document created in this format can be simpler than the existing method, and can freely change the items of the document and maintain security. This will be described in detail below with reference to the accompanying drawings.

Corporate Information Systems (CIS) include corporate business / payment systems or enterprise resource planning systems (ERPs). Enterprise resource management system (ERP) is a proposed material requirements planning (MRP), manufacturing resource planning (MRP-II), distribution management system (DRP) distribution distribution system, and supply chain management, which are proposed for smooth material / purchasing / manufacturing activities. SCM (Supply Chain Management) is the general form of the system. It is a large-scale package software for business management that integrates and manages the company's underlying business processes: production, sales, sales, inventory, human resources, and accounting. R / 3 in Germany is the representative ERP product.

The product information storage (management) module of the application includes a temporary storage cart for temporarily storing product information, a pending storage cart for storing goods information withholding purchases, and a purchase history cart showing the purchase history up to now. It may be made, but is not limited thereto.

The user profile management module receives and stores a profile including various personal information and credit information of a purchasing company and / or an individual client in advance. When a user (member) registration is required as a prerequisite for purchase, the stored user profile is transmitted to the selling company server for automatic user registration. At this time, the user's information is also delivered in XML. This is convenient because the buyer does not have to enter his or her profile on multiple distributor sites.

If the approver's approval to purchase a product is communicated to an individual client or a purchasing enterprise server, the server or the individual client can obtain the product approved for purchase in two ways. In order to make a purchase, the application's delivery module requests a purchase of a corresponding product to a selling company server having a purchase approved product, and the message transmitted to the selling company is the purchase approval information as described above. )to be. The product can also be obtained through a bid (Bid), in this case, when the individual client selects a bid request, the application delivers the bidding request information to the purchasing company web server. Upon receipt of the bid request information, the purchasing company server announces the corresponding bid request information, and if necessary, transmits a message to all the selling company servers holding the corresponding product to bid in order to purchase the corresponding product.

In the above, the configuration of an open structure of a computer network system of a purchasing company for electronic commerce between companies according to the present invention has been described. The following describes how to manage the purchase information generated in electronic commerce between companies using such a purchasing company network system.

As described above, the open enterprise computer network system open structure according to the present invention comprises a server, an individual client computer and an approver computer connected to the server, and at least one of the server and the individual client. Is connected to an external computer network, a server is provided with an intra-company information system (CIS) of a purchasing company, and a predetermined application program is installed on the individual client computer or server. The purchase information management method in the enterprise-to-company electronic commerce using such a purchasing company computer network system, the application information order information consisting of information about the goods that you want to purchase from one or more other selling companies and authentication information of each selling company Receiving and storing (Order Information) through an external computer network, and the application program determines whether or not authentication is possible based on the authentication information of the selling company, and stores the stored order information in the in-house information system and approver computer. Transmitting to one or more of the at least one of the on-premises information system and the approver computer, sending a purchase request to the selling company and paying for the goods in accordance with a final purchase decision made by the approver, And store the purchase information for the purchased goods in the system. And it comprises a step of managing.

In addition, the user may store the user information of the purchasing company using the application, and when the user registration request from the selling company, the user may be further provided with the step of registering the user automatically with the selling company.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, exemplary embodiments of a purchasing enterprise computer network system for electronic commerce between companies and a purchasing information management method using the same according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing an entire system for performing an electronic commerce using a computer network of a purchasing company according to the present invention. The server 17 of the selling company, the computer network system open structure 10 of the buying company, and the connection thereof It consists of an open computer network 18 such as the Internet. The computer network system open structure (10) of a purchasing company is composed of a purchasing company server (11), an individual client computer (13) for individual members, and an approver computer (16) responsible for purchasing a company's products. An intra-company information system (CIS), such as a resource management system (ERP) and an enterprise business / payment system, may be installed and has a necessary database 12. In addition, application programs 14 and 15 for enabling B2B e-commerce according to the present invention are installed in individual client computers or enterprise servers. These servers, clients, and approver computers are connected by an intra-company network connection channel, such as a closed network such as a LAN or WAN, or an open network such as an intranet.

FIG. 2 illustrates a flow of B2B e-commerce related information on a computer network of a purchasing company. First, order information (OI) including product information and seller information provided by a selling company is connected to an external network (Internet and Internet). Through the same network connection channel. The individual client receives the order information (OI1, OI2) from several sales companies, stores the entire order information list by using an application program on his computer or server, and based on the list, the product to be finally purchased (This is called "the final desired product"). At this time, the certification information of the selling company is also received, and the credit of the selling company is authenticated through a predetermined certification authority. Certification of these vendors may be by any existing method.

Subsequently, the individual client or server sends the order information (OI1, OI2) of the final desired product to the approver computer to request the purchase approval. The approver reviews the purchase approval request of the individual client, determines whether to approve it, and sends it to the individual client and server. The final purchase approval information (AI1) transmitted in this way is stored and managed by the application in the enterprise information system such as ERP (installed on the server), and the application on the server or individual client receives the final purchase request from the selling company. To send. This final purchase request is in addition to the order information sent by the seller, as described below, as Purchase Information (AI1), including the buyer's amendment requirements, payment method / method, etc. Is done. Payment for the goods may be made by the selling company sending its financial information (bank account number, etc.) together with the ordering information, and using this at the purchasing company side using a payment agent service company (buyer-oriented payment method; Dotted line), as in the usual payment method, the purchasing company sends its financial information (credit card information, account number, etc.) to the selling company along with the final purchase request and the selling company uses this to pay the price (seller). Or a solid line in the drawing).

3 is a flowchart of a procedure for performing B2B e-commerce using a computer network system of a purchasing company according to the present invention. First, an individual client uses servers of various selling companies using an application program installed on his or her computer or server. While visiting to collect and store the order information (OI; product information + information about the seller) of the goods he wants to purchase (S30). Based on the authentication information of each selling company included in the order information, it is determined whether the reliability of the selling company is certifiable and whether the order information has not been damaged during transmission (S31). When the authentication of the selling company and the integrity of information is completed, the individual client looks at the list of stored desired products and finally decides the product (final desired product) to purchase (S32), and then makes a bid request or purchases directly. Determine whether to apply (S33). In the case of requesting a bid, after registering a bid notice for the selected product on the purchasing company's web server (S39), when a bid is received by the selling company and an appropriate selling company is selected, the purchase is made according to a normal procedure.

If you want to apply for a purchase immediately without requesting a bid, it is first determined whether the individual client can directly approve the situation as if the individual client is the final approver of the purchase or there is no separate approver (S34). If there is a separate approver, the order information (OI) selected by the approver is transmitted to the approver (S35), and if the approver's final purchase approval (S36) is received, the final purchase approval information (AI) is transmitted to the corresponding selling company ( After S37), the purchase information is stored and managed in the enterprise information system such as ERP and CIS of the purchasing company (S38). Thereafter, payment and delivery of goods are carried out according to a usual procedure.

4 is a module diagram illustrating application programs installed in a server or an individual client of a purchasing enterprise computer network according to the present invention. First, since the order information of the selling company is encrypted in a proper manner, a parsing module 41 is provided for decrypting and parsing the order information. After parsing the order information, it confirms the security of the order information by checking whether the selling company's digital signature is matched, and checks whether the attached selling company's certificate is a valid certificate issued by an authorized certification authority. A security / authentication module 42 is provided. In addition, the storage module 43 for sorting and storing the order information temporarily stores a list of goods and displays them to the user (Tentative record cart 46), and hold for storing the product information that is not selected Trash record cart (47), Order confirmation record cart (48), which stores information about products approved for purchase by the approver, and records of products purchased by the individual client so far. Order history redord cart (49). However, the classification of the storage module is not limited to the above-described form, and may be classified into any form as long as the information of orders from various vendors can be summarized and displayed to the user.

The user profile management module 44 stores all information generally required for user registration, such as the names and contacts of individual clients and / or purchasers, and stores the stored user when the sales company server requires user registration. The registration information is transmitted to the selling company's server. The purchasing company's user information is generated directly by the buyer in the application of the buyer's computer. The purchaser's user information may include name, affiliation, age, gender, occupation, job title, address, e-mail address, and telephone number. When a user accesses a site of a specific sales company, and the user wants to register a user at the site, the user operates a user registration information transmission function provided in the application program. Then, the application program forms the stored user information in the form of a predefined XML file and sends it to the server using, for example, a file sending function of HTTP. The distributor site parses the received user profile information and uses it for user registration. To this end, each vendor's site is equipped with a module written in CGI that can parse and register user profile information in advance. The following is an example of the data format of user profile information: <BPI> <ID> jklee </ ID> <NAME> Lee, Jaekyu </ NAME> <AGE> 49 </ AGE> <JOB> Engineer </ JOB> <PHONE> 955-1234 </ PHONE> </ BPI> It is possible to solve the inconvenience of having to register the user by entering their own personal information to the sales company that wants to receive.

The delivery module 45 transmits the purchase desired product information finally selected by the individual client to the approver or the enterprise information system of the server through the connection channel of the purchaser's computer network, and receives the approver's purchase approval information (AI). Transfer it to the selling company for final product purchase.

The application program described above may be written by any programming language such as C, java, visual-basic, and each module may be implemented in a form included in the application program for each function.

5A to 5C illustrate an example of a user interface of the above-described application program, and FIG. 5A is a user interface for displaying product information of a temporary storage cart. The temporary storage cart stores information about products collected through one web shopping, and each product information consists of product name, unit price, quantity, amount, supplier (seller) and address of seller. The products stored in the temporary storage cart are compared to determine whether to send each product to the pending storage cart or to send a request for approval to the approver. Of course, by providing a product detail item, when the user selects it, it shows the product detail information that has already been transmitted and stored, or provides detailed information by reconnecting to the selling company website where the product is located through a web browser. You may. In addition, a purchase (approval) request and / or a bid (approval) request item are provided, and if the user selects it, the purchase request for the product is sent to the approver if there is an approver separately, and the individual client himself or the approver If no approval is required, such as when there is no approver for the product, the purchase approval information (AI) for the product is sent directly to the selling company. If you choose to request a bid (approval), after the approval of the approver (immediately if no separate approval is required), it is stored on the Buying Company's server that the product was placed in the bid and the sale holds that product. Is sent to the corporate server. The selling company receiving the bidding information is connected to the purchasing company server, responds to the bidding, and the purchase transaction is awarded to the selling company who has offered an appropriate price.

FIG. 5B illustrates a user interface for managing a user profile, in which an individual client inputs and stores various pieces of information of himself or a purchasing company in the "Registration / Modification" column. In the "Summary" item, the user information currently registered is displayed, and when "Registration Request" is selected, the user information is transmitted to the currently connected sales company server and automatically registered. At this time, for confidential matters such as credit card information, bank account number, certificate number, etc., it is stored in the "Register / modify secret information" item after confirming whether the authorized person is authorized.

5C is for security / authentication management, and displays the authentication information of the selling company that is received and stored together with the order information as well as the certificate of the individual client and the purchasing company. If the purchasing company selects "Certification request" for a particular certificate, the application will contact the Certification Authority that issued the certificate and verify that the certificate is valid.

6A and 6B classify information included in order information (OI) and purchase approval information (AI). As described above, the order information and the approval information are encrypted by a public key-based encryption method (PKI) to be kept secret, and transmitted in a MIME type using an XML language. The information contained in the order information (OI) of the XML document format includes an order number, a product code, a product name, a product model name, a directory code, and a quantity. (Quantity), Unit price, Delivery type, Delivery date, Detail Info., Seller name, Seller code, Seller URL URL), Seller Address, Seller E-mail, Proposal date / time, Valid time, Available Payment method / type, Installable This may be an avail installment, and shall additionally include the seller's digital signature and certification.

The purchase approval information (AI) sent from the purchasing company to the selling company is added to the order information as described above, and the purchaser's invoice code, approval, modification list, and payment method , Installment, etc.

Order information (OI) and approval information (AI) including the above-described information is written in an XML document, an example of which is illustrated in FIG. 6C. In particular, in the present invention, the XML document of the OI and AI is provided with a <Contract_List> consisting of a list of tags of information included in the front of the document, information on each cag is attached, and finally a <Digital_Signature> tag. Enclose the seller's digital signature with the <Certification> tag. Since the method of enclosing the digital signature and certificate follows the conventional PKI encryption method, the detailed description thereof is omitted. In addition, the format of such order information and approval information is not limited to the above, and may conform to international standards for transmission documents such as EDIFACT as long as proper information security and integrity can be maintained.

When using the application program according to the present invention, by storing information on the goods collected by the various sellers in the buyer side collectively, and comparing them to determine the final purchase, the purchase information to the various sellers side Compared to the conventional electronic commerce method distributed, it is possible to efficiently manage the purchase information, and the electronic commerce more suitable to the purchaser's intention can be achieved.

Using the purchaser's computer network as described above, the B2B e-commerce not only simplifies the purchase approval process within the purchaser, but also works well with enterprise information systems such as ERP, enabling fast purchase processing and purchase history management. Can be processed correctly.

In addition, when using the application according to the present invention, the user does not need to enter the user information on the seller's website automatically and performs a registration process with only one selection, convenient, and separately manages the electronic wallet program for managing certificates Unlike the prior art to be provided, the application of the present invention has the advantage of enabling the authentication of the seller's reliability simply based on the certificate transmitted by the seller by having the seller's authentication management function.

Claims (10)

A computer network open structure of a purchasing company for electronic commerce between a company and a server comprising a server, an individual client computer and an approver computer connected to the server by a connection channel, At least one of said servers and individual clients is connected to an external computer network, At least one of the server and the individual client computer collects and stores order information (OI) of goods to be purchased from one or more vendors, and transmits the order information to the approver computer to determine the final purchase item. Have an application installed that allows The application receives the seller's certification information from the seller in addition to the information on the goods to be purchased, authenticates the seller, stores user information of the buyer, and registers the user of the seller. A computer network open structure of a purchasing company for electronic commerce between enterprises, which can automatically perform user registration with the selling company upon request. The method of claim 1, The server is equipped with an intra-company information system (CIS), and the application program is linked with the intra-company information system (CIS) to transmit the purchase information to the approver computer, the approver makes a final purchase decision, and finally A computer network open structure of a purchasing company for electronic commerce between a company and a company, characterized in that the system stores and manages the purchase results. The method according to claim 1 or 2, When the product purchase does not require a separate approval, the application transmits the final purchase approval information (AI) to the selling company according to the purchase information selected by the individual client, and stores and manages the system in the buying company. A computer network open architecture of a purchasing company for electronic commerce between enterprises. The method according to claim 1 or 2, The application may further include a function of announcing the purchase bid intention to the purchasing company server according to the selection of the individual client instead of transmitting the purchase information to the approver. Computer Network Open Architecture. The method according to claim 1 or 2, The application program is installed on a third web server connected to the external computer network instead of being installed on the server or an individual client. The computer network open structure of the purchasing company for electronic commerce between the enterprise and the enterprise. . In claim 2, At least one of an application, an approver, and an intra-company information system (CIS) stored in the server or an individual client performs one or more of a purchase request and a payment to the selling company for the finally determined product. A computer network open structure of a purchasing company for electronic commerce between enterprises. The method of claim 1 or 2, wherein the application program A parsing module for decrypting and parsing encrypted order information of a selling company; A security / authentication module for authenticating the integrity of the parsed order information and the reliability of the selling company; A storage module for classifying and storing the order information of the received sales company; A user profile management module which stores user identification information of individual clients and purchasing companies, and transmits the stored user registration information to the selling company server when the selling company server requests user registration; The individual desired client's finally selected purchase information is transmitted to the approver, the purchaser's server, and the company's information system through the connection channel of the purchaser's computer network. A computer network open structure of a purchasing company for electronic commerce between the enterprise, characterized in that consisting of a delivery module. Server, a client computer connected to the server by the connection channel and the Approver Computer (Approver Computer), one or more of the server, the individual client and the approver is a purchasing company computer connected to the external computer network As a method of managing purchase information in a business-to-business e-commerce using a network system, The server is provided with an intra-company information system (CIS) of the purchasing company, and at least one of the third server connected to the server, an individual client computer, and an external computer network is provided with a predetermined application program. The application program receives and stores the order information (OI) consisting of information about the desired product to be purchased from one or more other selling companies and information about each selling company through an external computer network; The application program may determine whether the authentication of the integrity of the selling company and order information based on the information on the selling company; Transmitting information about the product selected by the individual client to purchase from the stored order information to at least one of the intra-company information system (CIS) and the approver; One of the application program, the in-house information system, and the approver computer includes: transmitting purchase approval information (AI) to the selling company and paying for the goods according to a final purchase approval decision made by the approver; And storing and managing the purchase information of the purchased goods in the information system of the company. The method of claim 8, The application program stores user information of the purchasing company, and when the user registration request from the selling company, the step of automatically performing the user registration to the selling company, characterized in that it further comprises How to manage purchase information on e-commerce. Server, a client computer connected to the server by the connection channel and the Approver Computer (Approver Computer), one or more of the server, the individual client and the approver is a purchasing company computer connected to the external computer network As a method of managing purchase information in a business-to-business e-commerce using a network system, The server is provided with an information system of an enterprise of a purchasing company, and at least one of the servers, an individual client computer, and a third server connected to an external computer network is provided with a predetermined application program. The application program receives and stores the order information (OI) consisting of information about the desired product to be purchased from one or more other selling companies and information about each selling company through an external computer network; The application program may determine whether the authentication of the integrity of the selling company and order information based on the information on the selling company; Notifying the purchasing company server that the individual client bids a product selected for purchase from the stored order information; And storing and managing the purchase information of the goods announced in the bidding in the in-house information system.