Contract change device, contract change method, and contract change program

Abstract

To provide an apparatus for changing contract allowed to level the work load and reduce human errors in changing contract information by making it possible to change the contract information through performing a booking-registration of a content of change at a timing when a change request comes.SOLUTION: An apparatus for changing contract according to the present embodiment comprises: change-booking registering means for registering change-booking data including a contract number and a content of contract change in response to an operation of a person in charge who received a change request; change-booking approving means for approving the change-booking data in response to an operation of an approver; and change-booking reflecting means for changing the contract data based on the change-booking data approved.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a contract modification device, a contract modification method, and a contract modification program. [Background technology]

[0002] For example, when changing contract information, the person in charge had to update the actual data after the change date. This resulted in a high workload during busy periods when changes were concentrated. In addition, since the person in charge changed the contract information directly, it was difficult to confirm whether the changes were correct. For example, Patent Document 1 is an example of a conventional system for changing contract information. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-72975 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 does not state anything about enabling changes to contract information by pre-registering changes when a request for changes is received, thereby leveling out the workload of changing contract information and reducing human error.

[0005] The present invention has been made in consideration of the above, and aims to provide a contract change device, a contract change method, and a contract change program that enable contract information to be changed by pre-registering the changes when a change request is received, thereby leveling out the workload of changing contract information and reducing human error. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, the present invention provides a contract change device which has a control unit and changes contract information, the control unit being configured to be able to access contract data including a contract number and contract contents, and which is characterized in having a change reservation registration means which registers change reservation data including the contract number and contract change contents in response to an operation of a person in charge who has received a change request, a change reservation approval means which approves the change reservation data in response to an operation of an approver, and a change reservation reflection means which changes the contract data based on the approved change reservation data.

[0007] According to one aspect of the present invention, the change reservation data includes a contract number, a registration date, a change date, a status indicating before and after the change of the item to be changed, and whether the change is pending, approved, returned, or reflected, and the change reservation registration means sets the status of the change reservation data to pending, the change reservation approval means sets the status to approved if the change reservation data is approved, and sets the status to returned if the change reservation data is returned, and the change reservation reflection means, if the status of the change reservation data is approved, changes the contract data based on the change reservation data and sets the status of the change reservation data to reflected.

[0008] According to another aspect of the present invention, the changed reservation reflecting means may change the contract data based on the changed reservation data during the night of the day before the date on which the changed reservation data is changed.

[0009] According to another aspect of the present invention, the contract contents of the contract data may include an amount of rent and an amount of additional guarantee fee.

[0010] According to one aspect of the present invention, the change reservation registration means creates the change reservation data in response to operations performed by a person in charge on a change reservation screen, and the change reservation screen may automatically calculate the amount of the additional guarantee fee based on the rent before and after the change.

[0011] In addition, in order to solve the above-mentioned problems and achieve the object, the present invention provides a contract change method executed by an information processing device equipped with a control unit, the control unit being configured to be able to access contract data including a contract number and contract contents, and characterized in that the method includes a change reservation registration process executed by the control unit, which registers change reservation data including the contract number and contract change contents in response to an operation of a person in charge who has received a change request, a change reservation approval process which approves the change reservation data in response to an operation of an approver, and a change reservation reflection process which changes the contract data based on the approved change reservation data.

[0012] In addition, in order to solve the above-mentioned problems and achieve the object, the present invention is a contract change program to be executed by an information processing device equipped with a control unit, the control unit is configured to be able to access contract data including a contract number and contract contents, and the contract change program causes the control unit to execute a change reservation registration process for registering change reservation data including the contract number and contract change contents in response to an operation of a person in charge who has received a change request, a change reservation approval process for approving the change reservation data in response to an operation of an approver, and a change reservation reflection process for changing the contract data based on the approved change reservation data. Effect of the Invention

[0013] According to the present invention, by making it possible to change contract information by pre-registering the changes at the time a change request is received, it is possible to equalize the workload of changing contract information and reduce human error. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a diagram for explaining a conventional change of contract information. [Diagram 2] FIG. 2 is a block diagram showing an example of the configuration of the contract change device according to the present embodiment. [Diagram 3] FIG. 3 is a flow chart showing an example of the overall processing of the contract change device according to this embodiment. [Figure 4] FIG. 4 is a diagram for explaining a specific example of the process of the control unit of the contract change device according to the present embodiment. [Diagram 5] FIG. 5 is a diagram for explaining a specific example of the process of the control unit of the contract change device according to the present embodiment. [Figure 6] FIG. 6 is a diagram for explaining a specific example of the process of the control unit of the contract change device according to the present embodiment. [Figure 7] FIG. 7 is a diagram for explaining a specific example of the process of the control unit of the contract change device according to the present embodiment. [Figure 8] FIG. 8 is a diagram for explaining a specific example of the process of the control unit of the contract change device according to the present embodiment. [Figure 9] FIG. 9 is a diagram for explaining a specific example of the process of the control unit of the contract change device according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiment.

[0016] [1. Overview] For example, when changing contract information, there were issues such as (1) the concentration of workload for changing the contract information and (2) human error when changing the contract information.

[0017] Figure 1 is a diagram for explaining conventional changes to contract information. In the following explanation, all monetary units are in "yen" and may be omitted. The example shown in Figure 1 shows a case where the contract change date is 2022 / 3 / 1. Conventionally, by entering the contract, the person in charge would directly register the changes to the contract information on the contract change date, 2022 / 3 / 1. This required work for each contract on 2022 / 3 / 1.

[0018] (1) Concentration of workload for changing contract information The person in charge had to update the actual data on the change date, which meant that the workload was concentrated during busy periods when changes were made, and the burden of changing contract information was heavy for the person in charge.

[0019] Therefore, in this embodiment, focusing on the fact that requests for changes to contract information are received over a period of several months, the work load can be leveled out by pre-registering the changes at the time the request is received.

[0020] (2) Human error in changing contract information Because the person in charge changed the contract information directly, it was difficult to check whether the changes were correct. As a result, even if there was a human error in the calculation of the guarantee amount, which directly affects revenue, it was not noticed and the customer was billed as it was.

[0021] Therefore, in this embodiment, a system has been developed in which the worker does not directly change the contract information, but temporarily saves it as reservation data, so that the approver can check the changes on the screen for viewing the reservation data.

[0022] The contract modification device of the present invention can be suitably used for modifying contract information for real estate rental, rent guarantee, etc., but is not limited to these, and can be applied to modifying various types of contract information.

[0023] [2. Configuration] An example of the configuration of the contract change device 100 according to this embodiment will be described with reference to Fig. 2. Fig. 2 is a block diagram showing an example of the configuration of the contract change device 100.

[0024] The contract change device 100 is a commercially available desktop personal computer. The contract change device 100 is not limited to a stationary information processing device such as a desktop personal computer, but may be a portable information processing device such as a commercially available notebook personal computer, a PDA (Personal Digital Assistant), a smartphone, or a tablet personal computer.

[0025] The contract change device 100 includes a control unit 102, a communication interface unit 104, a storage unit 106, and an input / output interface unit 108. The units included in the contract change device 100 are connected to each other so as to be able to communicate with each other via any communication path.

[0026] The communication interface unit 104 communicatively connects the contract change device 100 to a network 300 via a communication device such as a router and a wired or wireless communication line such as a dedicated line. The communication interface unit 104 has a function of communicating data with other devices via the communication line. Here, the network 300 has a function of communicatively connecting the contract change device 100 with the person in charge terminal 400, the approver terminal 500, and the server 200, and is, for example, the Internet or a LAN (Local Area Network).

[0027] The person in charge terminal 400 is a terminal used by the person in charge, and is configured to be able to access the contract modification device 100. The approver terminal 500 is a terminal used by the approver, and is configured to be able to access the contract modification device 100.

[0028] An input device 112 and an output device 114 are connected to the input / output interface unit 108. The output device 114 may be a monitor (including a home television), a speaker, or a printer. The input device 112 may be a keyboard, a mouse, a microphone, or a monitor that cooperates with a mouse to realize a pointing device function. In the following, the output device 114 may be referred to as the monitor 114, and the input device 112 may be referred to as the keyboard 112 or the mouse 112. Displaying information on the monitor 114 and the user operating the input device 112 may be referred to as a "user operation via a UI."

[0029] The storage unit 106 stores various databases, tables, files, etc. The storage unit 106 records computer programs for cooperating with an OS (Operating System) to give instructions to a CPU (Central Processing Unit) to perform various processes. For example, memory devices such as RAM (Random Access Memory) and ROM (Read Only Memory), fixed disk devices such as hard disks, flexible disks, and optical disks can be used as the storage unit 106. The storage unit 106 includes a data file 106a, etc.

[0030] The data file 106c is a file for storing contract data, changed reservation data, and the like.

[0031] The contract data may include a contract number and contract details (e.g., contract type code, rent, additional guarantee fee).

[0032] The change reservation data may include a contract number, a registration date, a change date, an item to be changed, before the change, after the change, a status, and a registered user. The status may be an application for approval of the change, The change is approved, the change is rejected, or the contract data has been changed and reflected.

[0033] The control unit 102 is a CPU or the like that comprehensively controls the contract change device 100. The control unit 102 has an internal memory for storing control programs such as an OS, programs that define various processing procedures, and required data, and executes various information processing based on these stored programs.

[0034] The control unit 102 is configured to be able to access the data file 106a and the like stored in the storage unit 106. The data file 106a may be provided in another location (for example, the server 200) as long as the control unit 102 is able to access it.

[0035] The control unit 102 conceptually includes a change reservation registration unit 102a, a change reservation approval unit 102b, a change reservation reflection unit 102c, and a screen display control unit 102d.

[0036] The change reservation registration unit 102a registers change reservation data including the contract number and the change contents of the contract in the data file 106a in response to the operation of the person in charge who received the change request, and notifies the approver terminal 500 of the change.

[0037] The change reservation data includes the contract number, the registration date, the change date, the items to be changed before and after the change, and a status indicating whether the item is pending, approved, returned, or reflected, and the change reservation registration unit 102a may set the status of the change reservation data to pending.

[0038] The contract contents of the contract data may include the amount of rent and the amount of additional guarantee fee. The change reservation registration unit 102a may create change reservation data in response to the operation of the person in charge on the change reservation screen, and the change reservation screen may automatically calculate the amount of additional guarantee fee based on the rent before and after the change.

[0039] The change reservation approval unit 102b approves the change reservation data in response to an operation by the approver. When the change reservation approval unit 102b approves the change reservation data, it may set the status to "approved" or when it rejects the change reservation data, it may set the status to "rejected."

[0040] The change reservation reflecting unit 102c changes the contract data based on the approved change reservation data. If the status of the change reservation data is approved, the change reservation reflecting unit 102c may change the contract data based on the change reservation data and set the status of the change reservation data to "reflected."

[0041] The screen display control unit 102g controls the display of various screens displayed on the monitor 114 and the inputs therefor.

[0042] [3. Specific Examples] A specific example of the process of the control unit 102 of the contract change device 100 in this embodiment will be described with reference to FIGS.

[0043] (3-1. Overall processing) FIG. 3 is a diagram showing a flow for explaining an outline of the overall processing of the control unit 102 of the contract change device 100 in this embodiment.

[0044] With reference to Fig. 3, an outline of the overall processing of the control unit 102 of the contract modification device 100 in this embodiment will be described. In Fig. 3, the change reservation registration unit 102a executes a change reservation registration process (step S1). Specifically, in the change reservation registration process, the change reservation registration unit 102a provides the person in charge terminal 400 with a change reservation screen for creating change reservation data in response to access from the person in charge terminal 400. The person in charge who has received the change request inputs the change contents on the change reservation screen of the person in charge terminal 400. The change reservation registration unit 102a creates change reservation data (contract number, registration date, change date, before and after change of items to be changed, status of application in progress) according to the input contents, registers it in the data file 106a, and transmits it to the change reservation approval unit 102b.

[0045] The change reservation approval unit 102b executes the change reservation approval process (step S2). Specifically, in the change reservation approval process, the change reservation approval unit 102b notifies the approver terminal 500 of a change reservation approval screen for confirming the change reservation data. The approver of the approver terminal 500: The change reservation approval unit 102b checks whether there are any errors in the change contents on the change reservation approval screen and sets whether to approve or reject the change contents. The change reservation approval unit 102b changes the status of the change reservation data to approve or reject according to the approval or rejection that has been set, and if the status of the change reservation data is approved, it sends the change reservation data to the change reservation reflection unit 102c.

[0046] If the status is "returned," a notification of the return of the changed reservation data is sent to the person in charge terminal 400. The person in charge corrects the changes and sends the corrected changed reservation data again to the change reservation approval unit 102b, where the approval person checks it again, and if the corrected changes are OK, the status is changed to "approved," and if the corrected changes are not OK, the data is sent back again.

[0047] The change reservation reflecting unit 102c executes the change reservation reflecting process (step S3). Specifically, in the change reservation reflecting process, if the status of the change reservation data is approved, the change reservation reflecting unit 102c changes the contract data based on the change reservation data during the night of the day before the contract change date, and after the change, sets the status of the change reservation data to "reflected".

[0048] (3-2. Sample data) 4 to 9 are diagrams showing sample data for explaining a specific example of the processing of the control unit 102 of the contract change device 100 in the present embodiment. A specific example of the processing of the control unit 102 of the contract change device 100 in the present embodiment will be explained with reference to Figs. 4 to 9.

[0049] (S1: Change reservation registration process) A specific example of the change reservation registration process will be described with reference to Fig. 4. In response to an operation by a person in charge who has received a change request, the change reservation registration unit 102a registers change reservation data including the contract number, registration date, change date, before and after the change of the item to be changed, and a status indicating that the application is pending in the data file 106a, and notifies the approver terminal 500.

[0050] For example, from 2 / 1 / 2022 to 2 / 3 / 2022, the person in charge will enter the changes to the contract data and register the change reservation data. It is possible to make multiple change reservations simultaneously for multiple contracts or for one contract. The person in charge will be able to register change reservations from the day the change request is received.

[0051] Fig. 4(B) shows an example of contract data. In the example shown in Fig. 4(B), the first line has the contract number "1111111111", the contract type code "10000001", the rent "60000", and the additional guarantee fee "0", and the second line has the contract number "2222222222", the contract type code "20000001", the rent "57000", and the additional guarantee fee "0".

[0052] Figure 4(A) shows an example of change reservation data. In the example shown in Figure 4(A), the first line contains the contract number "1111111111", the registration date "2022 / 2 / 1", the change date "2022 / 3 / 1", the item to be changed "contract type code", the before change "10000001", the after change "10000002", the status "application in progress", and the registered user "F03648". The "contract type code" has been changed from "10000001" to "10000002".

[0053] The second line shows the contract number "2222222222", registration date "2 / 2 / 2022", change date "3 / 1 / 2022", item to be changed "Additional guarantee fee", before change "-", after change "20000", status "Application in progress", and registered user "F03648". "Additional guarantee fee" has been changed from "0" to "20000".

[0054] The third line shows the contract number "2222222222", registration date "2 / 3 / 2022", change date "4 / 1 / 2022", item to be changed "Rent", before change "57000", after change "50000", status "Application in progress", and registered user "F03648". "Rent" has been changed from "57000" to "50000".

[0055] (S2: Change reservation approval process) A specific example of the change reservation approval process will be described with reference to Fig. 5. The change reservation approval unit 102b approves the change reservation data in response to the operation of the approver, and sets the status to Approved when the change reservation data is approved, or to Reject when the change reservation data is rejected.

[0056] For example, on February 10, 2022, the approver will check the contents of the change reservation data and approve it if there are no problems, or send it back if there are any deficiencies.

[0057] Figure 5 (A) is a diagram showing an example of changed reservation data. The status of the first and second lines has been changed to "Approved". The status of the third line has been changed to "Returned". The approver has determined that the change of "Rent" from "57000" to "50000" is an error.

[0058] (S1: Change reservation registration process) A specific example of the change reservation registration process will be described with reference to Fig. 6. The change reservation registration unit 102a corrects the returned contract reservation data in response to an operation by the person in charge. For example, on 2022 / 2 / 20, the person in charge corrects the returned contract reservation data.

[0059] Figure 6(A) shows an example of modified reservation data. The "Rent" in the third line has been changed from "50000" to "60000", and the status has been changed to "Application in progress".

[0060] (S2: Change reservation approval process) A specific example of the change reservation approval process will be described with reference to Fig. 7. The change reservation approval unit 102b approves the modified contract reservation data in response to the operation of the approver. For example, on 2 / 21 / 2022, the approver approves the modified contract reservation data. Fig. 7(A) shows an example of the change reservation data. The status in the third line has been changed to "approved".

[0061] (S3: Change reservation reflection process) A specific example of the change reservation process will be described with reference to Fig. 8. The change reservation reflection unit 102c changes the contract data based on the change reservation data during the night of the day before the change date of the change reservation data, and after the change, sets the status of the change reservation data to "reflected". In this example, the change reservation data for the change date "2022 / 3 / 1" is reflected in the contract data by night processing on 2022 / 2 / 28.

[0062] Figure 8(A) shows an example of changed reservation data. The status of the first and second lines with the change date of "2022 / 3 / 1" is changed to "Reflected".

[0063] Figure 8(B) shows an example of the contract data after the change. The contract type code on the first line has been changed to "10000002," and the additional guarantee fee on the second line has been changed to "20000."

[0064] For reservation data with a change date of "April 1, 2022," the contract data will be changed by night-time processing on March 31, 2022.

[0065] (Change reservation screen) 9 is a diagram showing an example of a change reservation screen. On the change reservation screen, it is possible to change the registration date, change date, contract type code, and amount of the item to be changed for the target contract number. For example, the additional guarantee fee billing amount may be automatically calculated by pressing a button. For example, if the rent is changed from "50,000 yen" to "60,000 yen," when the additional guarantee fee calculation button is pressed, the additional guarantee fee may be automatically calculated and set as the increase in rent of 3,000 yen x 50% (guarantee fee billing rate "50%" for contract type 10000002 registered in the master, not shown) = 1,500. When the application button, not shown, is pressed, change reservation data is automatically created according to the input contents on the change reservation screen.

[0066] As described above, according to this embodiment, there are provided a change reservation registration unit 102a which registers change reservation data including the contract number and change details of the contract in response to the operation of the person in charge who received the change request, a change reservation approval unit 102b which approves the change reservation data in response to the operation of the approver, and a change reservation reflection unit 102c which changes the contract data based on the approved change reservation data. Therefore, by making a reservation registration of the change details at the timing when a change request is received, it is possible to change the contract information, which makes it possible to level out the workload of changing the contract information and reduce human error.

[0067] [4. Contribution to the United Nations-led Sustainable Development Goals (SDGs)] This embodiment can contribute to improving business efficiency and promoting appropriate management decisions by companies, thereby contributing to goals 8 and 9 of the SDGs.

[0068] Furthermore, this embodiment can contribute to reducing waste and promoting paperless and electronic systems, thereby contributing to the achievement of SDGs Goals 12, 13, and 15.

[0069] Furthermore, this embodiment can contribute to strengthening control and governance, making it possible to contribute to Goal 16 of the SDGs.

[0070] 5. Other embodiments The present invention may be embodied in various different embodiments other than those described above within the scope of the technical concept set forth in the claims.

[0071] For example, among the processes described in the embodiments, all or part of the processes described as being performed automatically can be performed manually, or all or part of the processes described as being performed manually can be performed automatically using known methods.

[0072] In addition, the processing procedures, control procedures, specific names, information including parameters such as registered data and search conditions for each process, screen examples, and database configurations shown in this specification and drawings may be changed as desired unless otherwise specified.

[0073] Moreover, with regard to the contract modification device 100, the components shown in the figures are merely functional concepts, and the device does not necessarily have to be physically configured as shown in the figures.

[0074] For example, the processing functions of the contract change device 100, particularly the processing functions performed by the control unit, may be realized in whole or in part by a CPU and a program interpreted and executed by the CPU, or may be realized as hardware using wired logic. The program is recorded in a non-transient computer-readable recording medium that includes programmed instructions for causing an information processing device to execute the processes described in this embodiment, and is mechanically read by the contract change device 100 as necessary. That is, a computer program for giving instructions to the CPU in cooperation with the OS and performing various processes is recorded in a storage unit such as a ROM or HDD (Hard Disk Drive). This computer program is executed by being loaded into a RAM, and constitutes a control unit in cooperation with the CPU.

[0075] In addition, this computer program may be stored in an application program server connected to the contract change device 100 via any network, and it is also possible to download all or a part of it as necessary.

[0076] In addition, the program for executing the process described in this embodiment may be stored in a non-transient computer-readable recording medium, or may be configured as a program product. Here, the "recording medium" includes any "portable physical medium" such as a memory card, a Universal Serial Bus (USB) memory, a Secure Digital (SD) card, a flexible disk, a magneto-optical disk, a ROM, an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable and Programmable Read Only Memory (EEPROM (registered trademark)), a Compact Disk Read Only Memory (CD-ROM), a Magneto-Optical disk (MO), a Digital Versatile Disk (DVD), and a Blu-ray (registered trademark) Disc.

[0077] Moreover, a "program" is a data processing method written in any language or description method, and may be in any form, such as source code or binary code. Note that a "program" is not necessarily limited to a single configuration, but also includes a distributed configuration as multiple modules or libraries, and a program that achieves its function by working with a separate program, such as an OS. Note that the specific configuration and reading procedure for reading a recording medium in each device shown in the embodiments, as well as the installation procedure after reading, may use well-known configurations and procedures.

[0078] The various databases etc. stored in the memory unit are storage means such as memory devices such as RAM and ROM, fixed disk devices such as hard disks, flexible disks, and optical disks, and store various programs, tables, databases, and web page files etc. used for various processes and providing websites.

[0079] The contract change device 100 may be configured as an information processing device such as a known personal computer or a workstation, or may be configured as the information processing device to which any peripheral device is connected. The contract change device 100 may be realized by installing software (including programs or data) that causes the device to realize the processing described in this embodiment.

[0080] Furthermore, the specific form of distribution and integration of the devices is not limited to that shown in the drawings, and all or part of them can be functionally or physically distributed and integrated in any unit according to various additions or functional loads. In other words, the above-mentioned embodiments can be implemented in any combination, or the embodiments can be implemented selectively. [Explanation of symbols]

[0081] 100 Contract modification device 102 Control section 102a Change Reservation Registration Section 102b Change Reservation Approval Department 102c Change reservation reflection section 102d Screen display control unit 104 Communication interface section 106 Storage section 106a Data File 108 Input / Output Interface Section 112 Input Devices 114 Output Device 200 Servers 300 Network 400 Personnel terminal 500 Approver terminal

Claims

1. A contract change device that includes a control unit and changes contract information, The control unit is The contract data including the contract number and the contract contents can be accessed. a change reservation registration means for registering change reservation data including a contract number and change contents of the contract in response to an operation by a person in charge who has received a change request; a change reservation approval means for approving the change reservation data in response to an operation by an approver; a change reservation reflecting means for changing the contract data based on the approved change reservation data; A contract change device comprising:

2. The change reservation data includes a contract number, a registration date, a change date, an item to be changed before and after the change, and a status indicating whether the item is being applied for, approved, returned, or reflected. The change reservation registration means sets the status of the change reservation data to pending, The change reservation approval means sets the status to "approved" when the change reservation data is approved, and sets the status to "rejected" when the change reservation data is rejected; 2. The contract change device according to claim 1, wherein said change reservation reflecting means, when a status of said change reservation data is approved, changes contract data based on said change reservation data and sets the status of said change reservation data to "reflected."

3. 3. The contract modification device according to claim 2, wherein said changed reservation reflecting means modifies the contract data based on the changed reservation data during the night of the day before the date on which the changed reservation data is to be modified.

4. 4. The contract modification device according to claim 1, wherein the contract contents of the contract data include an amount of rent and an amount of additional guarantee fee.

5. The contract modification device according to claim 4, characterized in that the change reservation registration means creates the change reservation data in response to operations by a person in charge on a change reservation screen, and the change reservation screen automatically calculates the amount of the additional guarantee fee based on the rent before and after the change.

6. A contract change method executed by an information processing device having a control unit, The control unit is The contract data including the contract number and the contract contents can be accessed. Executed in the control unit, a change reservation registration process for registering change reservation data including a contract number and the change contents of the contract in response to an operation by a person in charge of the change request; a change reservation approval step of approving the change reservation data in response to an operation by an approver; a change reservation reflecting step of changing the contract data based on the approved change reservation data; A contract change method comprising:

7. A contract change program to be executed by an information processing device having a control unit, The control unit is The contract data including the contract number and the contract contents can be accessed. In the control unit, a change reservation registration process for registering change reservation data including a contract number and the change contents of the contract in response to an operation by a person in charge of the change request; a change reservation approval step of approving the change reservation data in response to an operation by an approver; a change reservation reflecting step of changing the contract data based on the approved change reservation data; A contract modification program to implement the above.

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