An information system for closed-loop management of the entire contract business process

Abstract

The present invention belongs to the technical field of contract management, and relates to an information system for closed-loop management of the entire business process of a contract, comprising: a contract signing module, for configuring the responsible role of each node in the contract review process; a contract performance module, for actually performing the obligations agreed upon by the two parties to the signed contract; a contract change module, for updating and storing when the content agreed upon in the contract changes; a contract termination module, for terminating performance and archiving the contract after the contract is executed and accepted, or an abnormal situation occurs in the contract; a contract information distribution module, for associating sales or procurement information by contract number, distributing contract information to business personnel, and supporting the transmission of contract information to other external information systems through an interface; realizing automatic storage, distribution and maintenance of contract information, simplifying the operation process of the contract management system, increasing information and compliance and security, and improving the work efficiency and user experience of contract management personnel.

Description

Technical Field

[0001] The invention relates to an information system for closed-loop management of the entire business process of a contract, and belongs to the technical field of contract management. Background Art

[0002] Closed-loop management of the entire contract business process refers to the online entry, storage and distribution of information such as contract amounts, counterparties, and business performance, so as to call, update and supplement contract data in the business processes of various departments of the company. A complete closed-loop management system for the entire contract business process can carry out and maintain business processes such as contract signing, performance, change and termination in real time, avoiding problems such as the inability to control contract progress and the lack of synchronization of contract information managed by various departments. The automated, standardized and efficient calling of contract information can improve contract management efficiency, reduce contract performance risks, and avoid business delays, which is crucial to corporate management.

[0003] At present, the business implementation of each enterprise is basically carried out around contracts. The management of contract information includes not only the storage of contract documents, but also the comprehensive management of information such as inspection progress, legal compliance and financial accounting at each stage of the project. Existing contract management systems focus on the electronic storage of paper contract documents, basic information retrieval and approval process management. However, these systems usually have problems such as complicated management departments, a wide variety of contracts and non-standard business processes, which leads to the inability of business departments such as sales, procurement, production and finance to call contract data for synchronous collaboration and supervision progress. In order to call, update and maintain various business information in a standardized and real-time manner, reduce contract management costs, and improve the efficient collaboration, business standardization and analytical decision-making capabilities of various departments, it is extremely important for the production work of various enterprises to use information technology to standardize the design, accurately update and safely supervise various contract processes and data. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide an information system for closed-loop management of the entire business process of contracts, which is applicable to enterprise sales, procurement, labor subcontracting and no-income-no-payment businesses.

[0005] To achieve the above-mentioned purpose, the present invention proposes the following technical solutions: an information system for closed-loop management of the entire business process of a contract, comprising: a contract signing module, a contract performance module, a contract change module, a contract termination module, a contract stamp tax ledger module, a contract information distribution module and a contract information import and export module; the contract signing module is used to set the contract review role, configure the responsible role of each node in the contract review process, and associate the actual position and the actual personnel; the contract performance module is used to actually execute the obligations agreed upon by the parties to the signed contract, and when the execution reaches the preset progress, it is necessary to collect or pay the contract; the contract change module is used to When changes occur, the storage is updated; the contract termination module is used to terminate the performance and archive the contract when the contract is executed, accepted, or an abnormal situation occurs in the contract; the contract stamp tax ledger module is used to generate stamp tax items, stamp tax rates and stamp tax amount data according to the mapping relationship between contract type and stamp tax; the contract information distribution module is used to associate sales or purchase information through contract numbers, distribute contract information to business personnel, and support the transmission of contract information to other external information systems through interfaces; the contract information import and export module is used to import the basic contract information, counterparty information and business performance information into the contract ledger of the corresponding category by contract number through a table, and supports information export.

[0006] Furthermore, the contract review roles include: the person in charge, the person in charge of the contracting department, the leader of the legal department, the leader of the financial department, the company leader and the seal administrator.

[0007] Furthermore, the handler initiates the contract review process; the handler needs to fill in all the contract information in the contract approval form, the head of the handling department, the legal department leader, the financial department leader and the company leader need to review the contract content and express their opinions, and the seal administrator needs to review the contract seal information; after each role reviews, fills in and expresses opinions on the contract content, a globally unique contract number is automatically generated and all contract contents are stored in the contract ledger.

[0008] Furthermore, in the contract ledger, contract information is stored online through the contract review form, and each field in the contract review form is stored in the database to describe the key information of the contract, thereby realizing the informatization of the contract. When promoting the contract process, the contract review form is used as a template, and the business personnel fill in the contract subject, contract purpose, contract conditions, contract consideration, contract performance method and contract effectiveness related information according to the content agreed upon by the two parties to the contract. When filling in the form, compliance checks are performed on the required fields and formats. The contract review form initiates review, examination, joint signing, contract stamping, archiving and filling in of the contract details form in the company's process. After further supplementing and reviewing the contract content, the filling in of all business fields of the contract and information archiving are completed.

[0009] Furthermore, the contract fulfillment module allows the contract handler to associate sales orders or purchase orders through contract numbers, and update the invoiced or received amounts of the contract through the orders, thereby completing business collection or payment; for split contracts, the internal contract association number is used to connect the procurement and sales business of both parties, thereby achieving related transaction coordination and full-chain connection of corporate operations.

[0010] Furthermore, the contract change module can select the contract that needs to be changed and initiate the contract change review process, during which operations such as signing, rolling back and terminating can be performed; after each role reviews, fills in and expresses opinions on the contract change content, the original contract is used as the parent node and the contract information adjusted for this change is associated as the child node. The contract content stored in the original contract will be updated according to the child node, so that the changed contract content is stored in the contract ledger; the contract review form can bring out the original contract information stored in the contract ledger for contracts with changed nature, increase or decrease the contract amount, and change the contract name, contract counterparty and business performance information; the contract change form is initiated through the company's process for review, examination, joint signature, contract stamping, archiving and filling in of the contract details form. After further supplementing the contract content, the contract's full business field update and information archiving are completed.

[0011] Furthermore, the contract review form in the contract termination module can bring out the original contract information stored in the contract ledger for contracts whose nature is terminated. The contract termination form is initiated through the company's process for review, examination, joint signing, contract stamping, archiving and filling in of the contract details form. After further supplementation of the contract content, the business termination and information archiving of the contract are completed.

[0012] Furthermore, in the contract stamp tax ledger module, after completing the detailed list filling in the contract review process and entering the contract ledger, the stamp tax items, stamp tax rates and stamp tax amount data are automatically generated according to the contract type and the stamp tax mapping relationship defined in the system, and stored in the contract stamp tax ledger.

[0013] Furthermore, for sales business, the contract information distribution module can query the corresponding sales order information through the sales contract number; for procurement business, the corresponding procurement order information can be queried through the procurement contract number; for engineering business, the WBS work number can be used to associate with the corresponding engineering project information; for financial business, the contract data can be pushed to the external financial system through the external interface to realize data creation, modification and deletion.

[0014] Furthermore, the basic information includes the main table information of the contract name, contract amount, agreed time and signatory, and the counterparty information is stored as a detailed table, including the counterparty name, counterparty code and bank account number; the business performance information is stored as a detailed table, including the project name and WBS work number.

[0015] The technical solution of the present invention has at least the following technical effects or advantages: 1. In view of the problems existing in enterprise contract management, such as complicated contract management departments and non-standard contract business processes, the present invention has designed a complete contract business role authority and contract management process, which can standardize and systematize the management of all businesses including contract signing, contract performance, contract modification and termination, realize the automatic storage, distribution and maintenance of contract information, simplify the operation process of the contract management system, increase information and compliance and security, and improve the work efficiency and user experience of contract management personnel.

[0016] 2. The present invention proposes a contract information storage, distribution and maintenance system to solve the problems of various contract types, irregular contract access and asynchronous contract information when multiple business departments of an enterprise call contract data for work. It can realize cross-business, cross-unit and cross-system information association based on information such as contract number, internal contract association number and WBS work number. It can improve the efficiency of contract management, reduce manpower input, contract management costs and contract performance risks, and avoid business delays, internal management resource consumption and time-delay economic losses.

[0017] 3. The present invention aims to solve the problem that contract information is difficult to import and update when the contract system is upgraded or migrated, and establishes a contract information import and export method. The initial contract data is filled in using a table file. After passing the system verification rules, the table content can be imported into the corresponding contract ledger database, realizing system online data import, update and upgrade, and backup and recovery, saving the cost of manual data entry and subsequent system upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an information system for closed-loop management of the entire business process of a contract in one embodiment of the present invention; Figure 2 It is a schematic diagram of the field and form data flow for connecting the procurement and sales business of the upper and lower units within the group based on the internal contract association number constructed in one embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail through specific embodiments. However, it should be understood that the provision of specific embodiments is only for a better understanding of the present invention, and they should not be understood as limitations of the present invention. In the description of the present invention, it should be understood that the terms used are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0020] In order to solve the problems existing in the prior art, such as the complicated contract management departments, non-standard business processes, and the asynchrony of contract information managed by various departments, the present invention proposes an information system for closed-loop management of the entire contract business process, and constructs a complete contract business role authority, contract management process and contract information distribution system. It can systematically manage all business of contract signing, contract performance, contract change and contract termination. It realizes the standardized, reliable and automated storage, distribution and maintenance of contract information. The scheme of the present invention is described in detail below through embodiments in conjunction with the accompanying drawings.

[0021] Example This embodiment discloses an information system for closed-loop management of the entire business process of a contract. Figure 1 , Figure 2 As shown, it includes: contract signing module, contract performance module, contract change module, contract termination module, contract stamp tax ledger module, contract information distribution module and contract information import and export module.

[0022] The contract signing module is used to set the contract review roles, configure the responsible roles for each node in the contract review process, and associate the actual positions with the actual personnel; Contract signing is the first step in the contract business process. This module includes review roles, processes and forms. The contract review roles include: the person in charge (contract initiator), the person in charge, the person in charge of the department in charge (the leader of the initiator's department), the leader of the legal department, the leader of the financial department, the company leader and the seal administrator. In this embodiment, the contract signing module is developed based on Zhiyuan OA software, which allows each company to configure the responsible role of each review node in the process according to actual conditions, and associate actual positions and actual personnel. Among them, the person in charge needs to accurately fill in all the contract information in the contract approval form, the person in charge of the department in charge, the leader of the legal department, the leader of the financial department and the company leader need to review the contract content and express their opinions, and the seal administrator needs to review the contract seal information; after each role reviews, fills in and expresses opinions on the contract content, a globally unique contract number is automatically generated and all contract contents are stored in the contract ledger.

[0023] like Figure 1As shown in the figure, the person in charge initiates the contract review process. First, the person in charge fills in the contract review form. Then, according to the contract review process configured by the company, the filled-in contract approval form is passed to the role of the next process node; the contract signing module allows each company to configure each node in the approval process according to the actual situation, and can perform additional signatures, rollbacks and termination operations in the process. Subsequently, by configuring the co-signing department and the audit opinion data table, when the process reaches the leaders of the legal department and the financial department, it can be required to select opinions based on the audit points. After each role reviews, fills in and expresses opinions on the contract content, a globally unique contract number is automatically generated and all contract contents are stored in the contract ledger for subsequent calls by business personnel. Subsequently, the process reaches the seal administrator node, and the contract seal and filing status are filled in according to the actual situation. When all processes are completed, the information in the contract review form is stored in the contract ledger.

[0024] In the contract ledger, the contract information is stored online through the contract review form. Each field in the contract review form is stored in the database to describe the key information of the contract, realizing the informatization of the contract. When promoting the contract process, the contract review form is used as a template. The business personnel fill in the contract subject, contract purpose, contract conditions, contract consideration, contract performance method and contract effectiveness information according to the content agreed upon by both parties to the contract. When filling in the form, the required fields and formats are checked for compliance to ensure data integrity. The contract review form goes through the nodes of initiating review, review, countersignature, contract stamping, archiving and filling in the contract details table in the company process. After further supplementing and reviewing all business fields of the contract, the filling in of all business fields of the contract and information archiving are completed to ensure the legality and standardization of the contract content. The information is finally archived in the contract ledger database for multiple departments to call.

[0025] Among them, the content related to the contract subject includes the relevant fields of our side and the relevant fields of the counterparty. Among them, the relevant fields of our side include: our contracting subject, the person in charge, the department in charge, the unit in charge, the implementing unit, internal and external, whether the other party has initiated the review and the internal coordination number, etc. The rules for the internal coordination number are: when "internal and external" selects "internal contract of the communication system", it is required. When "whether the other party has initiated the review" selects "yes", you can select the internal coordination number generated in the other party's contract and fill it in the form. When "whether the other party has initiated the review" selects "no", the system automatically generates an internal coordination number and waits for the other party to associate it. The above fields can be automatically brought out to the form through the basic information table of the person in charge, and support manual modification again. The fields related to the counterparty include: the name of the counterparty, the legal person of the counterparty, the taxpayer identification number, the merchant, the bank account number, the bank opening bank and the bank interbank number, etc. The above fields can be automatically brought out to the form through the basic information table of customers and suppliers, and support manual modification again; Among them, the contents related to the contract purpose include: contract name, contract category, contract type, contract subdivision type, etc. The above fields need to be filled in manually; Among them, the contract terms include: contract currency, contract amount including tax, contract amount excluding tax, contract agreed prepayment ratio, contract agreed prepayment amount, tax rate, contract amount applicable to the tax rate and invoice type, etc. Fill in 1 of the 2 options: contract agreed prepayment ratio and contract agreed payment amount. If you fill in "contract agreed prepayment amount", then "contract agreed prepayment ratio" = contract agreed prepayment amount / changed contract amount (tax included). If you fill in "contract agreed prepayment ratio", then "contract agreed prepayment amount" = changed contract amount (tax included) * contract agreed prepayment ratio. The above fields need to be filled in manually; Among them, the contents related to the contract consideration include: contract type, contract subdivision type, package name, warranty deposit (percentage), contract currency, contract amount including tax, contract amount excluding tax, contract agreed advance payment ratio, contract agreed advance payment amount, tax rate, contract amount applicable to the tax rate and invoice type, etc. The above fields need to be filled in manually; Among them, the contents related to the contract performance method include: defect liability period, warranty period, warranty money (percentage), construction period, contract estimated start date, contract estimated completion date, subcontract type, WBS work number, project name, estimated total cost, cumulative inspection and acceptance tax-inclusive amount and completion percentage, etc. The above fields need to be filled in manually, and the project-related fields can automatically associate and bring out relevant information according to the WBS work number; Among them, the contents related to the effectiveness of the contract include: seal type, our signatory, number of copies, only our seal / both parties have used seals, signing date, contract scan and paper contract number, etc. The above fields need to be filled in manually; After all fields in the contract review form are filled in, fill in the contract details table with information that cannot be confirmed during the review. After the process is completed, store it in the sales, procurement, labor subcontracting and no income and no expenditure (other) contract ledger database according to the contract type. The contract ledger viewing authority can be configured according to the personnel relationship data table of the person in charge, the undertaking department and the undertaking unit's related companies, and different viewing ranges can be opened for business personnel, department leaders and company leaders.

[0026] The contract fulfillment module is used to actually execute the obligations agreed upon by both parties to the signed contract. When the execution reaches the preset progress, it is necessary to collect or pay the contract.

[0027] The contract fulfillment module includes an information maintenance function, which allows the contract handler to associate a sales order or purchase order with the contract number, and update the invoiced or received amount of the contract through the order, thereby completing the business collection or payment; For split contracts, that is, when the purchase contract of the superior unit and the sales contract of the subordinate unit within the group are the same contract, the internal contract association number can be written in during the contract review. The purchase and sales business of both units can be connected in series based on the internal contract association number to achieve the coordination of related transactions and the connection of the entire chain of enterprise operations. Figure 2 As shown. For the procurement business of the superior unit, the procurement plan, procurement application and procurement order can be queried through the procurement contract number, and the invoice pre-production and payment can be completed. For the sales business of the subordinate unit, the demand plan and sales order can be queried through the sales contract number, and the invoice application and payment can be completed. By using the internal contract association number in the sales and procurement contracts, the procurement and sales business information of both parties of the contract can be queried, realizing the coordination of related transactions and the full chain of enterprise operations.

[0028] The contract change module is used to update the stored contract information when the content agreed in the contract changes. The contract change module can select the contract that needs to be changed and initiate the configured contract change review process, during which signature, rollback and termination operations can be performed. After each role reviews, fills in and expresses opinions on the contract change content, the original contract is used as the parent node and the contract information adjusted this time is associated as the child node. The contract content stored in the original contract will be updated according to the child node, so that the changed contract content is stored in the contract ledger for subsequent calls by business personnel.

[0029] The content contract review form can bring out the original contract information stored in the contract ledger for contracts with changed nature, and then fill in the increase / decrease amount to change the contract amount. The contract name, contract counterparty and business performance information (project information) can also be adjusted according to business needs; the contract change form goes through the nodes of initiating review, audit, countersignature, contract stamping, archiving and filling in the contract details table in the company process, and associates the original contract according to the original contract number field, making it the parent node and itself the child node, and uses the information of this change to update the contract data of the parent node. After further supplementing the contract content, complete the update of all business fields and information archiving of the contract to ensure the legality and standardization of the contract content.

[0030] The contract termination module is used to terminate and archive the contract after the contract is executed and accepted, or when an abnormal situation occurs in the contract. In the contract termination module, you can select the contract to be terminated and initiate the contract termination review process. In the process, you can sign, roll back and terminate. After the contract termination process is initiated by the person in charge, each role will review, fill in and express their opinions, and the contract will no longer be performed.

[0031] In the contract termination module, the contract review form can bring out the original contract information stored in the contract ledger for the contract that is terminated at any time. The contract termination form goes through the nodes of review, audit, countersignature, contract stamping, filing and filling in the contract details table in the company process, and associates the original contract according to the original contract number field, making it the parent node and itself the child node, and uses the termination information to update the parent node's contract data. After further supplementing the contract content, the business termination and information archiving of the contract are completed.

[0032] Contract stamp tax is a tax levied on the act of writing and receiving legally binding certificates in economic activities and economic exchanges. In the contract review process, after completing the detailed table and entering the contract ledger, the contract stamp tax ledger module is used to automatically generate stamp tax items based on the contract subdivision type and the stamp tax mapping relationship table defined in the associated system. The stamp tax amount is calculated based on the stamp tax rate data defined by the stamp tax item, and the formula is: stamp tax amount = cumulative contract amount after change × stamp tax rate. The stamp tax item, stamp tax rate and stamp tax amount corresponding to the contract are stored in the contract stamp tax ledger; when the finance department completes the stamp tax payment, you can add the field of whether to pay the stamp tax to "yes". The contract information distribution module is used to associate sales or procurement information through contract numbers, and associate engineering project information through WBS (WorkBreakdown Structure) work numbers, so as to send contract information to business personnel, including but not limited to sales, procurement, engineering, etc. It also supports the transmission of contract information to other external information systems through interfaces; for sales business, the contract information distribution module can query the corresponding sales order information through the sales contract number and call the query interface of systems such as SAP, and store the corresponding sales order data in the system database for subsequent use. For procurement business, the corresponding procurement order information can be queried through the procurement contract number; for engineering business, the corresponding engineering project information can be associated through the WBS work number; for financial business, the standardized REST interface provided by the external system can be called to push the contract data to external SAP, financial and treasury systems. After the other party receives the transmission message, the contract data can be created, modified and deleted in the other party's database.

[0033] The contract information import and export module is used to import the basic information of the contract, the counterparty information and the business performance information into the contract ledger of the corresponding category through the contract number in the table, and supports information export. Among them, the basic information stored in the contract ledger includes the main table information such as the contract name, contract amount, agreed time and signatory, the counterparty information is stored as a detailed table, including the counterparty name, counterparty code and bank account number, and the business performance information is stored as a detailed table, including the project name and WBS work number. When importing a contract, fill in the contract data in the corresponding worksheet, and use the contract number as the unique code to associate the main table and the detailed table information. After passing the system verification rules, the table content can be imported into the corresponding contract ledger database to realize the system online data import and update upgrade. In the contract information import and export module, the basic information of the contract, the counterparty information and the business performance information can be imported into the contract ledger of the corresponding category through the contract number, and the contract information export is supported. The data of the selected contract in the contract ledger can be exported to the worksheet to realize query statistics and backup recovery.

[0034] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0035] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0036] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1A function specified in one or more boxes.

[0037] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not deviate from the spirit and scope of the present invention should be included in the protection scope of the claims of the present invention. The above content is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An information system for closed-loop management of the entire business process of a contract, characterized in that: include: Contract signing module, contract performance module, contract change module, contract termination module, contract stamp tax ledger module, contract information distribution module and contract information import and export module; The contract signing module is used to set the contract review role, configure the responsible role of each node in the contract review process, and associate the actual position with the actual person; The contract fulfillment module is used to actually execute the obligations agreed upon by both parties to the signed contract. When the execution reaches the preset progress, it is necessary to collect or pay the contract; The contract change module is used to update and store the content agreed in the contract when it changes; The contract termination module is used to terminate the contract and archive it after the contract is executed and accepted, or when an abnormal situation occurs in the contract; The contract stamp tax ledger module is used to generate stamp tax items, stamp tax rates and stamp tax amount data according to the mapping relationship between contract type and stamp tax; The contract information distribution module is used to associate sales or purchase information with the contract number, distribute the contract information to business personnel, and support the transmission of the contract information to other external information systems through the interface; The contract information import and export module is used to import the basic contract information, counterparty information and business performance information into the contract ledger of the corresponding category through a table, and supports information export.

2. The information system for closed-loop management of the entire business process of a contract as claimed in claim 1, characterized in that: The contract review roles include: the person in charge, the person in charge, the person in charge of the contract department, the leader of the legal department, the leader of the financial department, the company leader and the seal administrator.

3. The information system for closed-loop management of the entire business process of a contract as claimed in claim 2, characterized in that: The person in charge initiates the contract review process; the person in charge needs to fill in all the contract information in the contract approval form, the person in charge of the department in charge, the legal department leader, the financial department leader and the company leader need to review the contract content and express their opinions, and the seal administrator needs to review the contract seal information; after each role reviews, fills in and expresses their opinions on the contract content, a globally unique contract number is automatically generated and all contract contents are stored in the contract ledger.

4. The information system for closed-loop management of the entire business process of a contract as claimed in claim 3, characterized in that: In the contract ledger, contract information is stored online through the contract review form, and the key information of the contract is described in the database through each field in the contract review form, thereby realizing the informatization of the contract. When promoting the contract process, the contract review form is used as a template, and the business personnel fill in the contract subject, contract purpose, contract conditions, contract consideration, contract performance method and contract effectiveness related information according to the content agreed upon by the two parties to the contract. When filling in the form, compliance verification is performed on the required fields and formats. The contract review form initiates review, examination, joint signing, contract stamping, archiving and filling in the contract details form in the company's process. After further supplementing and reviewing the contract content, the filling in of all business fields of the contract and information archiving are completed.

5. The information system for closed-loop management of the entire business process of a contract as claimed in claim 1, characterized in that: The contract fulfillment module allows the contract handler to associate sales orders or purchase orders through contract numbers, and to update the invoiced or received amounts of the contract through the orders, thereby completing business collection or payment; for split contracts, the internal contract association number is used to connect the procurement and sales business of both parties, thereby achieving coordination of related transactions and full-chain connection of corporate operations.

6. The information system for closed-loop management of the entire business process of a contract as claimed in claim 1, characterized in that: The contract change module can select the contract that needs to be changed and initiate the contract change review process, during which operations such as signing, rolling back and terminating can be performed; after each role reviews, fills in and expresses opinions on the contract change content, the original contract is used as the parent node and the contract information adjusted this time is associated as the child node. The contract content stored in the original contract will be updated according to the child node, so that the changed contract content is stored in the contract ledger; The contract review form can bring out the original contract information stored in the contract ledger for contracts with changed nature, increase or decrease the contract amount, and change the contract name, contract counterparty and business performance information; the contract change form is initiated through the company's process for review, examination, joint signing, contract stamping, archiving and filling in of the contract details form. After further supplementing the contract content, all business fields of the contract are updated and information is archived.

7. The information system for closed-loop management of the entire business process of a contract as claimed in claim 1, characterized in that: The contract review form in the contract termination module can bring out the original contract information stored in the contract ledger for contracts with a terminated nature. The contract termination form is reviewed, audited, co-signed, stamped, archived, and the contract details form is filled in the company's process. After further supplementing the contract content, the business termination and information archiving of the contract are completed.

8. The information system for closed-loop management of the entire business process of a contract as claimed in claim 1, characterized in that: In the contract stamp tax ledger module, after completing the detailed list filling during the contract review process and entering the contract ledger, the stamp tax item, stamp tax rate and stamp tax amount data are automatically generated according to the contract type and the stamp tax mapping relationship defined in the system, and stored in the contract stamp tax ledger.

9. The information system for closed-loop management of the entire business process of a contract as claimed in claim 1, characterized in that: For sales business, the contract information distribution module can query the corresponding sales order information through the sales contract number; For procurement business, the corresponding purchase order information can be queried through the purchase contract number; For engineering business, the WBS work number can be used to link to the corresponding project information; for financial business, the contract data can be pushed to the external financial system through the external interface to realize data creation, modification and deletion.

10. The information system for closed-loop management of the entire business process of a contract according to claim 1, characterized in that: The basic information includes the main table information of the contract name, contract amount, agreed time and signatory; the counterparty information is stored as a detailed table, including the counterparty name, counterparty code and bank account number; the business performance information is stored as a detailed table, including the project name and WBS work number.

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