KR20050097673A - Contract management system and method of the same - Google Patents

Abstract

A contract management system and method are disclosed. The storage unit stores query words hierarchically written by contract type, a first contract clause commonly used regardless of the contract type, and a second contract clause uniquely used by the contract type. The query output unit outputs the first query corresponding to the contract type selected by the user to the user terminal, and selects and outputs the second query from the query words hierarchically written according to the answer received from the user terminal to the user terminal. The contract writing unit prepares a contract by completing the first contract clause and the second contract clause on the basis of each query word output on the user terminal and the answers. According to the present invention, a contract management solution that removes the limitation of the field of use of the electronic contract system by linking with a contract generation solution that supports the generation of various contract forms in various fields, and provides various management functions according to the terms of the contract; Through the linkage, the utilization of the electronic contract system can be improved.

Description

Contract management system and method of the same

The present invention relates to a contract management system and method, and more particularly, to a contract management system and method for systematically performing contract related work by unifying contract generation and management.

Contracts are very important for most organizational activities and for the purpose of the organization. In addition, with the development of information and communication technology, contracts have been increased through the exchange of documents through communication networks.In response to this trend, standardized contracts are provided online and contract management (CM) services are provided. There is a need for a system to do this. Nevertheless, there is no standardized systematic contract management system in Korea. The reason for this is the absence of a systematic contract creation procedure and the lack of standardization of the generated contract.

If you look at the current site that provides contract services online, the site operated by Inbee.com (http://www.contractsample.co.kr) provides only the contract form but does not provide the contract creation and management service. . In addition, the site operated by KT (http://www.bizmeka.com) is a site that promotes integrated information communication related outsourcing business. It does not provide services related to contract management.

On the other hand, contract management has been provided incidentally to groupware or other business support systems as part of the company's own system integration business. Basic functions of contract management, which have been provided in the past, are main schedule notification functions and contract customer information inquiry functions. Contracts made in such systems are generally managed in the form of a file on each contractor's personal computer, and contract managers had to input necessary items into the system separately in order to provide various functions. In addition, the functions provided are dependent on the items entered by the contract manager, so the functions provided are limited. Due to this inconvenience, the number of contracts missing from the system increased, and the reliability of the accuracy of the statistics was low.

In the conventional electronic contract system, a large construction company or distributor is built / utilized on its own infrastructure through its own project. In this case, the contractors (suppliers) of the large builders / distributors (buyers) join the buyer's electronic contract system and carry out contract work according to the electronic contract process established by the buyer. In addition, it does not provide a separate function for contract management of the buyer / partner, but merely provides a contract inquiry function.

On the other hand, contracts previously digitally signed online are stored as files in the computer and can be validated online. However, when the digitally signed contract is printed online, the printed contract does not include the digital signature value and thus the validity is not recognized. Therefore, in order for a contract written online to be validated even offline, there is a problem that a separate signing process is required after outputting the contract.

The technical problem to be achieved by the present invention is to provide a contract management system and method that can efficiently manage contracts through the standard creation / listing of contracts scattered in various ways and forms and the uniform application of the main items.

Another technical problem to be achieved by the present invention is a program for executing a contract management method on a computer that can efficiently manage contracts through the standard creation and listing of contracts scattered in various ways and forms, and uniform application of main items. To provide a computer-readable recording medium for recording the data.

In order to achieve the above technical problem, a preferred embodiment of the contract management system according to the present invention includes a first storage unit for storing query words written hierarchically for each contract type; A second storage unit for storing a first contract clause commonly used regardless of the contract type and a second contract clause uniquely used for each contract type; A query word output unit which outputs a first query corresponding to a contract type selected by a user to a user terminal, and selects a second query from the hierarchically written query words according to the response received from the user terminal and outputs the second query to the user terminal. ; And a contract preparation unit for completing the first contract clause and the second contract clause and creating a contract based on the respective query words outputted to the user terminal and the answers thereto.

In order to achieve the above technical problem, another preferred embodiment of the contract management system according to the present invention is a user's answer to a series of questions belonging to a category selected by a user received from a user terminal connected through a communication network. Contract generation unit for generating a contract by sequentially creating a contract clause on the basis; A contract registration unit for registering the generated contract or the contract received from the user terminal in a database in association with the identification information of the user; A contract management unit that approves an access request for the registered contract from a user who has been granted access rights including at least one of inquiry authority, revision authority, and output authority, and manages revision history of the registered contract; And an electronic contract processing unit that receives the electronic signature from the contracting party of the registered contract and performs the contract.

In order to achieve the above technical problem, a preferred embodiment of the contract management method according to the present invention is (a) a query word written hierarchically for each contract type, a first contract commonly used regardless of the contract type. Storing a clause and a second contract clause uniquely used for each contract type in a database; (b) outputting a first query corresponding to the contract type selected by the user to the user terminal; (c) selecting a second query among the hierarchically written query words according to the answer received from the user terminal and outputting the second query word to the user terminal; And (d) creating a contract by completing the first contract clause and the second contract clause based on each query word outputted to the user terminal and an answer thereto.

Another preferred embodiment of the contract management method according to the present invention for achieving the above technical problem is the user's answer to a series of questions belonging to a category selected by the user received from a user terminal connected through a communication network. Generating a contract by sequentially writing a contract clause based on the contract; Registering the generated contract or the contract received from the user terminal in a database in association with the identification information of the user; Approving a request for access to the registered contract from a user who has been granted access rights including at least one of inquiry authority, revision authority, and output authority, and preparing a revision history for the registered contract; And receiving an electronic signature from a contracting party of the registered contract and performing a contract conclusion.

Thereby, by linking with the contract generation solution that supports the creation of various contract forms in various fields, it removes the limitation of the application field of the electronic contract system and links with the contract management solution that provides various management functions according to the terms of the contract. Through this, the utilization of the electronic contract system can be increased.

1 is a block diagram showing the configuration of a preferred embodiment of a contract management system according to the present invention.

Referring to Figure 1, the contract management system 100 according to the present invention, the user management unit 110, contract generation unit 120, contract registration unit 130, contract management unit 140, electronic contract processing unit 150, statistics The data generating unit 160, the additional service providing unit 170, the authentication code insertion unit 180, and the database unit 190 is provided.

The user manager 110 processes member registration, access authentication, access right confirmation, payment information management, and the like, for a user connected through a communication network including the Internet. A user registered as a member can use free / free services such as contract generation service, contract management service, statistical data providing service, and contract inquiry service provided by the contract management system 100. On the other hand, the user management unit 110 provides a limited service (such as the provision of some of the standard contracts registered in the database) to non-member users. In addition, the user manager 110 manages contracts created or registered by a user registered as a member for each user, and manages access right information set by the user for each contract. At this time, the access right information is information on whether each user is allowed to access the contract created, registered, or concluded by each user, and the information is applied to other users who are allowed to inquire, edit, and print the contract. Information. In addition, the user manager 110 manages the payment means registered from the user registered as a member, and provides the payment information registered by the user to the charging means (not shown) when the user uses the paid service. Data generated by the user manager 110 (ie, member information, payment information, access right information, etc.) is stored in the database 190.

The contract generation unit 120 creates a contract by sequentially writing a contract clause based on a user's answer to a series of questions belonging to a category selected by the user. 2 is a block diagram showing the detailed configuration of the contract generation unit 120. Referring to FIG. 2, the contract generation unit 120 includes a storage unit 210, a query word output unit 220, a contract creation unit 230, a response verification unit 240, and a screen generation unit 250. .

The storage unit 210 includes a query written hierarchically by contract type, at least one candidate answer for each query type, a first contract clause commonly used regardless of the contract type, and a second used uniquely by contract type. The contract clause is saved. Contract types include real estate, money lending / bond debt, intellectual property, services / consulting / agent, partnership / partnership / merger / employment, purchasing / sales / delivery, factory / machinery / production, construction work, construction others, etc. Like the contract, it can be decided according to the nature of the contract. The query word is classified by each contract type and has a question unique number, a question / unit unique number, a question / unit city order, a question / unit city condition, a unit last number, and the like. At this time, the unit means each article or a set of articles constituting the contract, and the question / unit unique number is identification information given for the article corresponding to each question. The question / unit city order is the output order of query words prepared in each hierarchy and the output order for each clause. In addition, the question / unit city condition is a criterion for determining whether the clause is output when the output of the query and the input of the response proceed sequentially. For example, when the contract type and contract party are determined, the title of the contract and the purpose of the contract are printed. In addition, a unique identification number corresponding to the query is given to the answer received from the user. On the other hand, the storage unit 210 may be provided separately according to the nature of the stored information, the storage unit 210 may be provided integrally with the database unit 190.

The query output unit 220 outputs a query corresponding to the contract type selected by the user to the user terminal. Next, the query output unit 220 reads a query corresponding to an answer received from the user or a query written hierarchically from the storage unit 210 and sequentially outputs the query to the user terminal. The contract creation unit 230 creates a contract by completing each contract clause based on the respective query words and answers outputted to the user terminal. At this time, the contract creation unit 230 outputs the query and the created contract clauses to the user based on the question / unit city order and the question / unit city conditions. The contract writing unit 230 reads the contract clauses commonly used from the storage unit 210 regardless of the contract type and the contract clauses uniquely used for each contract type, and inserts the response input from the user into the corresponding contract clause. . The answer verification unit 240 determines whether the answer is appropriate or not, and determines whether to request re-entry to the user. To this end, the storage unit 210 stores candidate answers or constraints corresponding to each query. The answer verification unit 240 does not include the answer entered by the user in the candidate answer or does not meet the constraint (for example, if the number is set as a constraint on the contract amount, the contract amount from the user If a character is inputted), a message instructing the user to re-enter an appropriate answer is output.

The screen generation unit 250 generates an output screen including a first output window in which a query is displayed, an input window in which an answer is input from a user, and a second output window in which a contract clause based on an answer to the query is displayed. do. 3A and 3B are diagrams showing examples of output screens generated by the screen generator 250, respectively. In the first output window of the output screen illustrated in FIG. 3A, a query word corresponding to a contract type selected by a user described in one form and a response field for a query word are output. In contrast, each hierarchical query is sequentially output to the first output window of the output screen illustrated in FIG. 3B. On the other hand, an additional description of each query (eg, a description of the legal meaning of the query, an interpretation of the clause), a description of the answer (eg, a description of the constraints set for the answer, an entry in the answer field) May be additionally provided.

The contract registration unit 130 registers the contract generated by the contract generation unit 120 or the contract received from the user terminal in the database unit 190 in association with the identification information of the user. The contract management unit 140 approves a request for access to a registered contract from a user who is granted access rights including at least one of inquiry authority, revision authority, and output authority, and manages revision history of the registered contract. . A user who registers a contract generated by the contract generation unit 120 or a contract created by himself / herself in the contract management system 100 may set access rights for contracts registered by the user for other users. For example, a purchaser of a company prepares a purchase contract with a company, and in the conclusion of the contract, the purchaser of a company and a purchaser of a company are amended. The right of inquiry may be granted to employees of the company. At this time, it is preferable that the employees of the company and the company be registered in advance as a member of the contract management system 100, and furthermore, the members belonging to a specific company are preferably joined as a group member. Do.

The electronic contract processing unit 150 receives an electronic signature from the contracting party of the registered contract and performs the contract. At this time, the electronic contract processing unit 150 notifies the members who are set as approvers in the contract conclusion of the registered contract to perform the electronic signature by using an e-mail or a text message. In addition, the electronic contract processing unit 150 stores the contract signed in the database unit 190 and notifies the contracting parties of the contract conclusion facts when the electronic signature is input from all of the contracting parties. On the other hand, the electronic contract processing unit 150 receives the documents attached to the contract such as seal certificate, power of attorney, etc. from both parties of the contract is stored in the database unit 190 by linking with the contract.

The statistical data generation unit 160 generates statistical data such as annual / monthly / day increase / decrease in sales / purchase status according to contract terms, contract conclusion rate based on contract terms, and contract terms. A user who is a member of the contract management system 100 based on the statistical data generated by the statistical data generation unit 160 may grasp the contract conclusion rate, profit rate, etc. according to each contract condition when the contract of the same type is concluded. .

The additional service providing unit 170 provides an additional service such as an alarm service and an insurance service to a user who is a member of the contract management system 100 as a member. The alarm service is a service that notifies the contracting party of the date and the performance of the date by a notification means including at least one of a text message and an e-mail before the date set in the contract condition is reached. In addition, the value-added service provider 170 notifies each of the users existing in the settlement line of the contract conclusion through the alarm service that the set payment deadline has arrived, and when the contract of one party of the contract is completed and the electronic signature is received, the contract Notify the other party of the completion of one party's signature; The insurance service provides insurance related to the conclusion of the contract, guarantees for the performance of the contract, guarantees for penalties for breach of contract, and guarantees as a precondition for the contract. When each contracting party reads the insurance conditions provided by the supplementary service provider 170 and performs an electronic signature, the supplementary service provider 170 notifies the insurance subscription fact to the insurance company system (not shown) and provides insurance. The insurance certificate received from the company system is stored in the database unit 190 in association with the contract.

When the authentication code insertion unit 180 receives an output request from a user who has been granted the output right, the authentication code inserting unit 180 outputs an encrypted authentication code including the contents of the signed contract to the signed contract. At this time, the authentication code is generated by encrypting the contents of the contract, the two-dimensional bar code can be applied as the authentication code. Two-dimensional barcode is a barcode that can recognize the information without being connected to the database, unlike the one-dimensional barcode, which converts simple numbers or characters into barcodes and receives the information from the database already established. . Two-dimensional barcodes can be used to encode not only letters and numbers, but also images, fingerprints, signatures, etc., so that the digital signature of the contract and the digital signature of the contracting party can be used.

4 is a flowchart illustrating a process of performing a preferred embodiment of the contract management method according to the present invention.

Referring to FIG. 4, the operator of the contract management system 100 may include a query word written hierarchically by contract type, constraints on candidate answers or answers to the query word, first contract clauses commonly used regardless of the contract type, and The second contract clause uniquely used for each contract type is stored in the database unit 190 (S400). The contract management system 100 presents a selectable contract type to a user connected through a communication network, and outputs a query word corresponding to the contract type selected by the user to a user terminal (not shown) (S410). Next, the contract management system 100 selects additional query words from among the query words hierarchically written according to the answers received from the user terminal and outputs them to the user terminal (S420).

Next, the contract management system 100 completes the contract clauses constituting the contract based on the respective query words and the answers to the user terminal (S430). At this time, the contract management system 100 instructs the user to re-enter the appropriate answer if the answer received from the user terminal is not included in the candidate answer stored in the database 190 or meets certain constraints. Outputs (S440). The contract management system 100 generates an output screen including a first output window in which a query is posted, an input window in which an answer is input from a user, and a second output window in which a contract clause based on an answer to the query is displayed. It transmits to the user terminal (S450).

5 is a flowchart illustrating a process of performing another preferred embodiment of the contract management method according to the present invention.

Referring to FIG. 5, the contract generation unit 120 sequentially creates a contract clause based on a user's answer to a series of questions belonging to a category selected by a user received from a user terminal connected through a communication network. It generates (S500). Since the process of generating the contract by the contract generator 120 is substantially the same as described with reference to FIG. 4, detailed description thereof will be omitted. The contract registration unit 130 registers the contract generated by the contract generation unit 120 or the contract received from the user terminal in a database in association with the identification information of the user (S510). 6 illustrates a data structure stored in the database unit 190. Referring to FIG. 6, data stored in the database unit 190 is inquiry authority information, payment information, insurance information, attachment file information, electronic contract information, notification setting information, notification item information, and the like.

The user management unit 110 receives the information stored in the database unit 190 when an access request for a registered contract is received from a user who is granted access rights including at least one of inquiry authority, modification authority, and output authority. Approve the user requesting access on the basis (S520). The contract management unit 140 creates history information including corrections, inquiry history, and the like, for the registered contract by the user who has been granted access (S530). The electronic contract processing unit 150 receives an electronic signature from the contracting party of the registered contract, performs the contracting, and stores the contract completed by the contracting party in association with the identification information of the contracting party in the database unit 190 ( S540). 7 is a diagram showing an example of the contractual result determination by the electronic signature of the contracting party from the registration of the contract. Referring to FIG. 7, when the electronic signature by each contracting party is completed after registering the contract generated by the contract generation unit 120 or the contract created by the user in the database unit 190, the electronically signed contract document is stored in the database unit. Stored at 190.

The authentication code inserting unit 180 is an encrypted authentication code (for example, including the contents of the contract requesting the output of the contract that the user has access to the output request is received from the user who has been given the output permission 2D barcode) is added to the contract and output to the user terminal of the corresponding user (S550). In addition, the statistical data generating unit 160 generates statistical data such as annual contract / contract rate of increase / decrease in sales / purchase status according to contract terms, contract conclusion rate by contract party, contract condition (S560). . The additional service providing unit 170 notifies the user of the arrival of the date included in the contract at the time of registration of the contract or after the registration of the contract, or provides insurance services accompanying the contract (S570). ). 8 is a diagram illustrating an example of a process of performing a contract registration service, a statistical information service, and a notification service. Referring to FIG. 8, both parties of a registered contract may perform tasks such as modifying the contents of the contract, registering documents attached to the contract, setting up a notification service, and requesting preparation of statistical information.

The invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific preferred embodiments described above, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such changes are within the scope of the claims.

According to the contract management system and method according to the present invention, it is possible to improve business contract related work efficiency through standardization of contracts used online and establishment of a management system. In addition, through accurate and prompt modification of the contract clause and confirmation of the contract clause, the contract can be concluded at low cost by negotiating in an equal relationship between the buyer and the supplier. Furthermore, by linking with the contract generation solution that supports the creation of various contract forms in various fields, it is possible to remove the limitation of the application field of the electronic contract system and to link with the contract management solution that provides various management functions according to the terms of the contract. Through this, the utilization of the electronic contract system can be improved.

1 is a block diagram showing the configuration of a preferred embodiment of a contract management system according to the present invention;

2 is a block diagram showing the detailed configuration of the contract generation unit 120,

3A and 3B illustrate examples of output screens generated by the screen generator 250, respectively.

4 is a flowchart showing a process of performing a preferred embodiment of the contract management method according to the present invention;

5 is a flowchart illustrating a process of performing another preferred embodiment of the contract management method according to the present invention;

6 is a view showing a data structure stored in the database unit 190;

7 is a diagram showing an example of a contractual result determination by electronic signature of a contracting party from registration of a contract; and

8 is a diagram illustrating an example of a process of performing a contract registration service, a statistical information service, and a notification service.

Claims (23)

A first storage unit for storing the query words hierarchically written for each contract type; A second storage unit for storing a first contract clause commonly used regardless of the contract type and a second contract clause uniquely used for each contract type; A query word output unit which outputs a first query corresponding to a contract type selected by a user to a user terminal, and selects a second query from the hierarchically written query words according to the response received from the user terminal and outputs the second query to the user terminal. ; And And a contract creation unit for completing the first contract clause and the second contract clause based on each query word outputted to the user terminal and an answer thereof, to create a contract. The method of claim 1, A third storage unit for storing at least one candidate answer or a constraint for each query; And And a response verification unit for outputting a message instructing to re-enter a proper answer to the user terminal when the answer received from the user terminal is not included in the candidate answer or the constraint is met. Contract management system. The method of claim 1, A screen generation unit configured to generate an output screen including a first output window in which a query is displayed, an input window in which an answer is input from a user, and a second output window in which a contract clause written based on an answer to the query is displayed; Contract management system, characterized in that it further comprises. A contract generation unit for generating a contract by sequentially writing a contract clause based on a user's answer to a series of questions belonging to a category selected by a user received from a user terminal connected through a communication network; A contract registration unit for registering the generated contract or the contract received from the user terminal in a database in association with the identification information of the user; A contract management unit that approves an access request for the registered contract from a user who has been granted access rights including at least one of inquiry authority, revision authority, and output authority, and manages revision history of the registered contract; And And an electronic contract processing unit for receiving an electronic signature from a contracting party of the registered contract and performing contract conclusion. The method of claim 4, wherein And an authentication code inserting unit for outputting an encrypted authentication code including contents of the concluded contract to the concluded contract upon receiving an output request from the user who has been granted the output right. Management system. The method of claim 5, The authentication code is a contract management system, characterized in that the two-dimensional bar code. The method of claim 4, wherein And a statistical data generation unit for generating statistical data including at least one of the contract conclusion rate for each contract party and the contract conclusion rate according to the contract condition. The method of claim 4, wherein It further comprises an additional service providing unit for providing an alarm service for notifying the contracting party of the date and the implementation of the date by a notification means including at least one of a text message and an e-mail before the date set forth in the contract terms. Contract management system. The method according to any one of claims 4, 5, 7, and 8, The contract generation unit, A first storage unit for storing the query words hierarchically written for each contract type; A second storage unit for storing a first contract clause commonly used regardless of the contract type and a second contract clause uniquely used for each contract type; A query word output unit which outputs a first query corresponding to a contract type selected by a user to a user terminal, and selects a second query from the hierarchically written query words according to the response received from the user terminal and outputs the second query to the user terminal. ; And And a contract creation unit for completing the first contract clause and the second contract clause based on each query word outputted to the user terminal and an answer thereof, to create a contract. The method of claim 9, A third storage unit for storing at least one candidate answer or a constraint for each query; And And a response verification unit for outputting a message instructing to re-enter a proper answer to the user terminal when the answer received from the user terminal is not included in the candidate answer or the constraint is met. Contract management system. The method of claim 9, A screen generation unit configured to generate an output screen including a first output window in which a query is displayed, an input window in which an answer is input from a user, and a second output window in which a contract clause written based on an answer to the query is displayed; Contract management system, characterized in that it further comprises. (a) storing, in a database, a query word written hierarchically by contract type, a first contract clause commonly used regardless of the contract type, and a second contract clause uniquely used by the contract type; (b) outputting a first query corresponding to the contract type selected by the user to the user terminal; (c) selecting a second query among the hierarchically written query words according to the answer received from the user terminal and outputting the second query word to the user terminal; And and (d) completing the first contract clause and the second contract clause based on each query word outputted to the user terminal and answering the same, and creating a contract. The method of claim 12, The database further stores constraints on candidate answers or answers to the queryers. If the answer inputted from the user terminal in step (d) is not included in the candidate answer or satisfies the constraint, the contract outputting a message instructing the user to re-enter an appropriate answer. How to manage. The method of claim 12, (f) generating an output screen including a first output window in which the query word is displayed, an input window in which an answer is input from the user, and a second output window in which a contract clause written based on the answer to the query word is displayed; Contract management method comprising a further. Generating a contract by sequentially writing a contract clause based on a user's answer to a series of questions belonging to a category selected by a user received from a user terminal connected through a communication network; Registering the generated contract or the contract received from the user terminal in a database in association with the identification information of the user; Approving a request for access to the registered contract from a user who has been granted access rights including at least one of inquiry authority, revision authority, and output authority, and preparing a revision history for the registered contract; And And receiving a digital signature from a contracting party of the registered contract and performing a contract conclusion. The method of claim 15, And receiving an output request from a user who has been granted the output right, adding an encrypted authentication code including the contents of the concluded contract to the concluded contract, and outputting the encrypted authentication code. The method of claim 16, The authentication code is a contract management method, characterized in that the two-dimensional barcode. The method of claim 15, And generating statistical data including at least one of a contract conclusion rate for each contract party and a contract conclusion rate according to the contract condition. The method of claim 15, And providing a notification service for notifying the contracting party of the performance of the date and the due date by a notification means including at least one of a text message and an e-mail before the date set forth in the contract condition is reached. How to manage contracts. The method according to any one of claims 15, 16, 18, and 19, The contract generation step, (a) storing, in a database, a query word written hierarchically by contract type, a first contract clause commonly used regardless of the contract type, and a second contract clause uniquely used by the contract type; (b) outputting a first query corresponding to the contract type selected by the user to the user terminal; (c) selecting a second query among the hierarchically written query words according to the answer received from the user terminal and outputting the second query word to the user terminal; And and (d) completing the first contract clause and the second contract clause based on each query word outputted to the user terminal and answering the same, and creating a contract. The method of claim 20, The database further stores constraints on candidate answers or answers to the queryers. If the answer inputted from the user terminal in step (d) is not included in the candidate answer or satisfies the constraint, the contract outputting a message instructing the user to re-enter an appropriate answer. How to manage. The method of claim 20, (f) generating an output screen including a first output window in which the query word is displayed, an input window in which an answer is input from the user, and a second output window in which a contract clause written based on the answer to the query word is displayed; Contract management method comprising a further. A computer-readable recording medium having recorded thereon a program for executing the contract management method according to claim 12 or 15 on a computer.