Construction Business Intermediary System

Abstract

To provide a construction business intermediary system and method for enabling other persons concerned of a corresponding scheme to acquire a new earnings opportunity by reducing a preparation load of an estimation sheet to be presented to a client by a builder of an architectural structure.SOLUTION: A construction business intermediary system includes: means for allowing a user management device to generate use amount information on each building material to be used in the construction of an architectural structure on the basis of structural skeleton information to be inputted to prepare a structural design book for a construction confirmation application; means for allowing an intermediary management device to notify a constructor management device of acquired building material use amount source information; means for allowing the constructor management device to generate the use amount information on each building material on the basis of the building material use amount source information; means for calculating an estimated amount for a construction cost of an architectural structure on the basis of the use amount information on each building material; means for performing processing for remitting the amount to be a first ratio of construction cost to be acquired from a client of the architectural structure to an intermediary; and means for allowing the intermediary management device to perform processing for remitting the amount to be a second ratio of a constructor remittance amount to a user.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a technique for creating an estimate submitted by a building constructor (e.g., a general contractor, a construction method manufacturer, etc.) to a client.

Background Art

[0002] It is common for a candidate constructor to present an estimate to a client, and when the client approves the contents of the estimate, the client requests (orders) the candidate constructor to perform the construction work of the building.

[0003] After obtaining the design drawings prepared by an architectural and design office, the candidate constructor examines the usage amount of each building material, multiplies the usage amount of each building material obtained from the examination result by the unit price of each building material, and further considers the construction costs other than the building material costs to create an estimate for the client.

[0004] Under such circumstances, technical research and development for smoothly promoting business activities among related parties in the construction industry has been actively carried out. For example, in Patent Document 1, an idea of "providing both the creator of the structural design drawings for building confirmation applications and the building material manufacturer with new opportunities for revenue acquisition by mediating their business" has been proposed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] By the way, when a candidate constructor creates an estimate for a client, the burden of the work of specifying the usage amount of each building material from the design drawings is extremely large, and the above conventional technology has a problem that the work burden of the candidate constructor cannot be reduced.

[0007] Therefore, in the present invention, in view of the above problems, an object is to provide a construction business intermediation system that reduces the burden of preparing an estimate submitted by a building constructor to a client and enables other related parties of the scheme to obtain new profit opportunities.

Means for Solving the Problems

[0008] One form of the disclosed construction business intermediation system is a construction business intermediation system including a constructor management device managed by a building constructor, a user management device managed by a user who creates a structural design drawing for construction confirmation application related to the building using software for creating structural design drawings, and an intermediary management device managed by an intermediary between the constructor and the user. The user management device includes meta-information creation means for creating meta-information for generating usage amount information for each building material used in the construction of the building based on the structural frame information input for creating the structural design drawing for construction confirmation application, meta-information notification means for the intermediary management device to notify the obtained meta-information on the usage amount of building materials to the constructor management device, usage amount information generation means for the constructor management device to generate usage amount information for each building material based on the meta-information on the usage amount of building materials, estimated construction cost calculation means for calculating an estimated amount of the construction cost of the building based on the usage amount information for each building material, constructor remittance means for performing a process of remitting an amount that is a first ratio of the construction price obtained from the client of the building to the intermediary, and intermediary remittance means for the intermediary management device to perform a process of remitting an amount that is a second ratio of the amount that is the first ratio to the user.

Effects of the Invention

[0009] The disclosed construction business intermediation system reduces the burden of preparing an estimate submitted by a building constructor to a client and can provide new profit opportunities to other related parties of the scheme.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0011] Embodiments for carrying out the present invention will be described with reference to the drawings. (Operating Principle of the Construction Business Mediation System According to the Present Embodiment)

[0012] Using FIGS. 1 and 2, an overview of the construction business mediation system 100 according to the present embodiment (hereinafter simply referred to as "this system") will be described. FIG. 1 is a diagram for explaining the connection relationship of this system 100, and FIG. 2 is a diagram for explaining the operations realized by this system 100.

[0013] As shown in FIG. 1, this system 100 includes a constructor management device 250 managed by a constructor 240 of a building 210, a user management device 270 managed by a user 260 who creates a structural design drawing 230 for construction confirmation application related to the building 210 using software 220 for creating structural design drawings, and a mediator management device 290 managed by a mediator 280 for the business between the constructor 240 and the user 260.

[0014] As shown in FIG. 1, the constructor management device 250, the user management device 270, and the intermediary management device 290 are connected via a communication network 390. Each of the constructor management device 250, the user management device 270, and the intermediary management device 290 may be a server device or a desktop or notebook personal computer. The communication network 390 may be in either a wired or wireless form.

[0015] As shown in FIG. 2, a user (for example, an architectural / design office) 260 uses the structural design drawing creation software 220 to create a structural design drawing 230 for building confirmation application related to a building 210. At this time, the user 260 creates basic data 320 for knowing the usage amount of each material required for constructing the building 210.

[0016] Then, the intermediary 280 notifies the basic data 320 to a constructor (for example, a general contractor, a construction method manufacturer, etc.) 240. On the other hand, the constructor 240 reads the basic data 320 obtained from the intermediary 280 into a predetermined software to specify the usage amount 310 of each material required for constructing the building 210. By doing so, the constructor 240 can easily obtain the information necessary for creating an estimate for the building 210.

[0017] The constructor 240 multiplies the specific required amount 310 of each material by the unit price of each material to calculate the estimated amount of material costs, and adds the estimated amount of construction costs other than material costs thereto to calculate the estimated amount 330 of the construction costs of the building 210. The constructor 240 creates an estimate for the building 210 for the client using the calculated estimated amount 330 and submits it to the client.

[0018] When the client accepts the content of the estimate submitted by the constructor 240, the client orders the construction of the building 210 from the constructor 240 and pays the construction cost 340, for example, according to the progress of the construction of the building 210.

[0019] In return for the reduced workload of preparing the estimate, the constructor 240 pays a part of the construction cost 340 received from the client to the intermediary 280, and the intermediary 280 pays a part of the amount received from the constructor 240 to the user 260.

[0020] Through the above operations, the system 100 reduces the burden of preparing the estimate submitted by the constructor 240 of the building 210 to the client, and provides new profit opportunities for the other related parties 260, 280 of this scheme.

[0021] The operating principle of the system 100 will be described with reference to FIG. 3. FIG. 3 is a functional block diagram of the system 100. As described above, the system 100 includes a constructor management device 250, a user management device 270, and an intermediary management device 290.

[0022] As shown in FIG. 3, the user management device 270 has original information creation means 110. The intermediary management device 290 has original information notification means 120 and intermediary remittance means 160. The constructor management device 250 has usage information generation means 130, estimated construction cost calculation means 140, and constructor remittance means 150.

[0023] Based on the structural body information 300 input for creating the structural design drawings 230 for building confirmation application related to the building 210, the original information creation means 110 creates building material usage original information 320 for generating usage information 310 for each building material used in the construction of the building 210.

[0024] The structural design drawings 230 for building confirmation application include floor plans for each floor, elevation views of two or more sides, cross-sectional views of two or more sides, foundation plans, structural detail drawings, list of structural materials used, foundation and ground description documents, floor plans for each floor, roof plans, axis diagrams of two or more sides, construction method plans, etc.

[0025] The metadata creation means 110 saves, for example, the structural frame information 300 input by the user 260 through a GUI (Graphical User Interface) for creating the structural design drawings 230 for building confirmation applications as a text file (construction material usage metadata 320).

[0026] The metadata creation means 110 may be in a form that notifies the mediator management device 290 of the created construction material usage metadata 320, or may be in a form that saves the created construction material usage metadata 320 in a location accessible to the mediator management device 290. The metadata notification means 120 notifies the constructor management device 250 of the acquired (obtained) construction material usage metadata 320 via the communication network 390.

[0027] The usage information generation means 130 generates usage information 310 for each construction material based on the construction material usage metadata 320 notified by the metadata notification means 120. Note that construction materials refer to, for example, cement, reinforcing bars, formwork, steel frames, wood, etc.

[0028] The usage information generation means 130 converts, for example, the construction material usage metadata 320 which is text data into usage information 310 for each construction material by quantity calculation software. The fact that the usage information 310 for each construction material can be obtained mechanically (easily) greatly reduces the burden of the work of calculating the material cost of the building 210 in the preparation of the estimate created by the constructor 240 for the client.

[0029] The estimated construction cost calculation means 140 calculates the estimated amount 330 of the construction cost of the building 210 based on the usage information 310 for each construction material generated by the usage information generation means 130. The estimated construction cost calculation means 140, for example, multiplies the usage information 310 for each construction material by the unit price for each construction material to calculate the estimated amount 330 of the total material cost (total construction material cost) when building the building 210. Also, the estimated construction cost calculation means 140 may be in a form that calculates the estimated amount 330 of the construction cost when building the building 210, for example, by adding the estimated amount of construction costs other than the total material cost to the above-mentioned estimated amount of the total material cost.

[0030] The constructor remittance means 150 performs a process of remitting an amount 360 that is the first ratio 350 of the construction cost 340 obtained from the client of the building 210 to the intermediary 280. The construction cost 340 may be the cost related to the total construction cost, or may be the cost related to the structural construction cost which is a part of the total construction cost. The first ratio 350 is a ratio that can be appropriately determined between the constructor 240 and the intermediary 280, and its magnitude is not particularly limited. When the construction cost 340 is the cost related to the structural construction cost, for example, about 1.5% is assumed.

[0031] In return for the reduction in the work burden of preparing the estimate, the constructor 240 makes a payment of a certain amount 360 to the intermediary 280. On the other hand, the intermediary 280 can obtain a new profit opportunity.

[0032] The intermediary remittance means 160 performs a process of remitting an amount 380 that is the second ratio 370 of the amount 360 that is the first ratio 350 of the construction cost 340 to the user 260. The amount 360 is the amount remitted by the constructor remittance means 150. The second ratio 370 is a ratio that can be appropriately determined between the intermediary 280 and the user 260, and its magnitude is not particularly limited. When the construction cost 340 is the cost related to the structural construction cost and the first ratio 350 is 1.5%, for example, about one-third is assumed. At this time, the amount 380 is an amount of about 0.5% of the cost related to the structural construction cost when the construction cost 340 is the cost related to the structural construction cost and the first ratio 350 is 1.5%.

[0033] Since the user 260 can receive a part of the amount 360 paid by the constructor 240 as a return for the reduction in the work burden of preparing the estimate, the user 260 can obtain a new profit opportunity.

[0034] Based on the operation principle as described above, the system 100 can reduce the burden of preparing the estimate submitted by the constructor 240 of the building to the client, and can also provide new profit opportunities to other related parties 260, 280 of this scheme. (Hardware Configuration of the Construction Business Intermediation System According to this Embodiment) (1) Hardware configuration example of user management device 270

[0035] Using FIG. 4, a hardware configuration example of the user management device 270 will be described. FIG. 4 is a diagram showing an example of the hardware configuration of the user management device 270. As shown in FIG. 4, the user management device 270 includes a CPU (Central Processing Unit) 510, a ROM (Read-Only Memory) 520, a RAM (Random Access Memory) 530, an auxiliary storage device 540, a communication I / F 550, an input device 560, an output device (display device) 570, and a storage medium I / F 580.

[0036] The CPU 510 is a device that executes the programs stored in the ROM 520, performs arithmetic processing on the data developed (loaded) in the RAM 530 according to the program instructions, and controls the entire user management device 270. The ROM 520 stores the programs and data executed by the CPU 510. The RAM 530 is where the programs and data to be executed are developed (loaded) when the CPU 510 executes the programs stored in the ROM 520, and temporarily holds the arithmetic data during the arithmetic operations.

[0037] The auxiliary storage device 540 is a device that stores the OS (Operating System), which is basic software, and application programs according to this embodiment, together with related data, and is, for example, an HDD (Hard Disk Drive) or a flash memory.

[0038] The communication I / F 550 is an interface for connecting to a communication network 390 such as a wired / wireless LAN (Local Area Network) or the Internet, and for exchanging data with other devices 290 that provide a communication function.

[0039] The input device 560 is a device for inputting data to the user management device 270 such as a keyboard or a touch panel. The output device 570 is a device composed of an LCD (Liquid Crystal Display) or the like, and functions as a user interface when the user uses the functions of the user management device 270 or when performing various settings. The storage medium I / F 580 is an interface for transmitting and receiving data with a storage medium 590 such as a CD-ROM, a DVD-ROM, or a USB memory.

[0040] Each means of the user management device 270 may be realized in a form in which the CPU 510 executes a program corresponding to each means stored in the ROM 520 or the auxiliary storage device 540. Further, each means of the user management device 270 may be realized in a form in which the processing related to each means is realized as hardware. Further, a form may be adopted in which the program according to the present invention is read from an external server device via the communication I / F 550 or the program according to the present invention is read from the storage medium 590 via the storage medium I / F 580, and the user management device 270 executes the program. (2) Hardware configuration example of the mediator management device 290

[0041] An example of the hardware configuration of the mediator management device 290 will be described with reference to FIG. 5. FIG. 5 is a diagram showing an example of the hardware configuration of the mediator management device 290. As shown in FIG. 5, the mediator management device 290 includes a CPU 610, a ROM 620, a RAM 630, an auxiliary storage device 640, a communication I / F 650, an input device 660, an output device (display device) 670, and a storage medium I / F 680.

[0042] The CPU 610 is a device that executes programs stored in the ROM 620. It performs arithmetic processing on the data expanded (loaded) into the RAM 630 according to the instructions of the program, and controls the entire mediator management device 290. The ROM 620 stores the programs and data executed by the CPU 610. The RAM 630 has the programs and data to be executed expanded (loaded) when the CPU 610 executes the programs stored in the ROM 620, and temporarily holds the arithmetic data during the arithmetic operations.

[0043] The auxiliary storage device 640 is a device that stores the OS, which is basic software, and application programs according to this embodiment, together with related data. For example, it is an HDD, a flash memory, or the like.

[0044] The communication I / F 650 is an interface for connecting to a communication network 390 such as a wired / wireless LAN or the Internet, and for exchanging data with other devices 250 and 270 that provide a communication function.

[0045] The input device 660 is a device for inputting data to the mediator management device 290, such as a keyboard or a touch panel. The display device 670 is a device composed of an LCD or the like, and functions as a user interface when the user uses the functions of the mediator management device 290 or when performing various settings. The storage medium I / F 680 is an interface for transmitting and receiving data with a storage medium 690 such as a CD-ROM, a DVD-ROM, or a USB memory.

[0046] Each means of the mediator management device 290 may also be implemented in such a form that the CPU 610 executes a program corresponding to each means stored in the ROM 620 or the auxiliary storage device 640. Further, each means of the mediator management device 290 may also be implemented in the form of realizing the processing related to each means as hardware. Further, it is also possible to load the program according to the present invention from an external server device via the communication I / F 650 or to load the program according to the present invention from the storage medium 690 via the storage medium I / F 680, and cause the mediator management device 290 to execute the program. (3) Hardware configuration example of the constructor management device 250

[0047] Using FIG. 6, a hardware configuration example of the constructor management device 250 will be described. FIG. 6 is a diagram showing an example of the hardware configuration of the constructor management device 250. As shown in FIG. 6, the constructor management device 250 includes a CPU 710, a ROM 720, a RAM 730, an auxiliary storage device 740, a communication I / F 750, an input device 760, an output device (display device) 770, and a storage medium I / F 780.

[0048] The CPU 710 is a device that executes a program stored in the ROM 720, performs arithmetic processing on the data developed (loaded) into the RAM 730 according to the instructions of the program, and controls the entire constructor management device 250. The ROM 720 stores the programs and data executed by the CPU 710. The RAM 730 is where the programs and data to be executed are developed (loaded) when the CPU 710 executes the programs stored in the ROM 720, and temporarily holds the arithmetic data during the arithmetic operation.

[0049] The auxiliary storage device 740 is a device that stores the OS, which is basic software, and application programs according to the present embodiment, together with related data, and is, for example, an HDD or a flash memory.

[0050] The communication I / F 750 is an interface for exchanging data with other devices 290 that are connected to a communication network 390 such as a wired / wireless LAN or the Internet and provide a communication function.

[0051] The input device 760 is a device for inputting data to the constructor management device 250 such as a keyboard or a touch panel. The output device 770 is a device composed of an LCD or the like, and functions as a user interface when the user uses the functions of the constructor management device 250 or when performing various settings. The storage medium I / F 780 is an interface for transmitting and receiving data to and from a storage medium 790 such as a CD-ROM, a DVD-ROM, or a USB memory.

[0052] Each means of the constructor management device 250 may be realized in a form in which the CPU 710 executes a program corresponding to each means stored in the ROM 720 or the auxiliary storage device 740. Also, each means of the constructor management device 250 may be realized in a form in which the processing related to each means is realized as hardware. Further, it is also possible to load the program according to the present invention from an external server device via the communication I / F 750 or to load the program according to the present invention from the storage medium 790 via the storage medium I / F 780, and cause the constructor management device 250 to execute the program. (Example of processing by the construction business mediation system according to the present embodiment) (1) Estimated price 330 calculation process by the present system 100

[0053] With reference to FIG. 7, an example of the estimated price 330 calculation process by the present system 100 will be described. FIG. 7 is a flowchart showing the flow of an example of the estimated price 330 calculation process by the present system 100.

[0054] In S10, user 260 uses the software 220 for creating structural design drawings to create the structural design drawings 230 for building confirmation application related to the building 210. At this time, user 260 creates the basic data 320 for knowing the usage amount of each material required for constructing the building 210.

[0055] In S10, the original information creation means 110 of the user management device 270 creates the original information 320 of building material usage amount for generating the usage amount information 310 of each building material used in the construction of the building 210 based on the structural frame information 300 of the building 210.

[0056] The original information creation means 110 saves, for example, the structural frame information 300 input by the GUI (Graphical User Interface) by the user 260 for creating the structural design drawings 230 for building confirmation application as a text file (the original information 320 of building material usage amount).

[0057] The original information creation means 110 may notify the created original information 320 of building material usage amount to the mediator management device 290, or may save the created original information 320 of building material usage amount in a place accessible to the mediator management device 290.

[0058] In S20, the original information notification means 120 of the mediator management device 290 notifies the original information 320 of building material usage amount created in S10 to the constructor management device 250 via the communication network 390.

[0059] In S30, the usage amount information generation means 130 of the constructor management device 250 generates the usage amount information 310 of each building material based on the original information 320 of building material usage amount notified in S20. Here, the building materials refer to, for example, cement, steel bars, formwork, steel structures, wood, etc.

[0060] The usage information generation means 130 converts, for example, the building material usage original information 320 which is text data into the usage information 310 for each building material by means of quantity calculation software. The fact that the usage information 310 for each building material can be obtained mechanically (easily) greatly reduces the burden of the work of calculating the material cost of the building 210 in the preparation of the estimate prepared by the constructor 240 for the client.

[0061] In S40, the estimated construction cost calculation means 140 of the constructor management device 250 calculates the estimated amount 330 of the construction cost of the building 210 based on the usage information 310 for each building material generated in S30. The estimated construction cost calculation means 140, for example, multiplies the usage information 310 for each building material by the unit price for each building material to calculate the estimated amount 330 of the total material cost (total building material cost) when constructing the building 210. Further, the estimated construction cost calculation means 140 may, for example, calculate the estimated amount 330 of the total construction cost when constructing the building 210 by adding the estimated amount of the construction cost other than the total material cost to the above-mentioned estimated amount of the total material cost. By performing the above-described processing, the system 100 can reduce the burden of preparing the estimate submitted by the constructor 240 of the building to the client. (2) Remittance processing of fees by the system 100

[0062] An example of the remittance processing of fees by the system 100 will be described with reference to FIG. 8. FIG. 8 is a flowchart showing the flow of an example of the remittance processing of fees by the system 100.

[0063] In S110, the constructor remittance means 150 of the constructor management device 250 performs a process of remitting the amount 360 which is the first ratio 350 of the construction cost 340 obtained from the client of the building 210 to the mediator 280.

[0064] The construction cost 340 may be the cost related to the total construction cost or the cost related to the structure construction cost which is a part of the total construction cost. The first ratio 350 is a ratio that can be appropriately determined between the constructor 240 and the intermediary 280, and its magnitude is not particularly limited. When the construction cost 340 is the cost related to the structure construction cost, for example, about 1.5% is assumed.

[0065] In return for the reduction in the work burden of preparing the estimate, the constructor 240 makes a payment of a certain amount 360 to the intermediary 280. On the other hand, the intermediary 280 can obtain a new profit opportunity.

[0066] In S120, the intermediary remittance means 160 of the intermediary management device 290 performs a process of remitting the amount 380, which is the second ratio 370 of the amount 360 remitted in S110, to the user 260.

[0067] The second ratio 370 is a ratio that can be appropriately determined between the intermediary 280 and the user 260, and its magnitude is not particularly limited. When the construction cost 340 is the cost related to the structure construction cost and the first ratio 350 is 1.5%, for example, about one-third is assumed. At this time, the amount 380 is about 0.5% of the cost related to the structure construction cost when the construction cost 340 is the cost related to the structure construction cost and the first ratio 350 is 1.5%.

[0068] Since the user 260 can receive a part of the amount 360 paid by the constructor 240 in return for the reduction in the work burden of preparing the estimate, the user 260 can obtain a new profit opportunity. By performing the above-described process, the system 100 can provide a new profit opportunity to the related parties 260 and 280 of this scheme.

[0069] As described above in detail for the embodiments of the present invention, the present invention is not limited to such specific embodiments, and various modifications and changes are possible within the scope of the gist of the present invention described in the claims.

Explanation of Signs

[0070] 100 Construction business intermediary system 110 Original information creation means 120 Original information notification means 130 Usage information generation means 140 Estimated construction cost calculation means 150 Constructor remittance means 160 Intermediary remittance means 210 Building 220 Software for creating structural design drawings 230 Structural design drawings for building confirmation application 240 Constructor 250 Constructor management device 260 User 270 User management device 280 Intermediary 290 Intermediary management device 300 Structural body information 310 Usage information per building material 320 Original building material usage information 330 Estimated amount of construction cost 340 Construction price 350 First ratio 360 Amount corresponding to the first ratio of the construction price 370 Second ratio 380 Amount corresponding to the second ratio of amount 360 390 Communication network 510, 610, 710 CPU 520, 620, 720 ROM 530, 630, 730 RAM 540, 640, 740 Auxiliary storage device 550, 650, 750 Communication interface 560, 660, 760 Input device 570, 670, 770 Output device 580, 680, 780 Memory medium interface 590, 690, 790 Memory medium

Claims

1. A construction business mediation system including a constructor management device managed by a constructor of a building, a user management device managed by a user who creates a structural design drawing for building confirmation application related to the building using software for creating a structural design drawing, and a mediator management device managed by a mediator of the business between the constructor and the user, wherein the user management device, original information creation means for creating original information for generating usage amount information for each building material used in the construction of the building based on the structural body information input for creating the structural design drawing for building confirmation application; wherein the mediator management device, original information notification means for notifying the obtained original information on the building material usage amount to the constructor management device; wherein the constructor management device, usage amount information generation means for generating usage amount information for each building material based on the original information on the building material usage amount; estimated construction cost calculation means for calculating an estimated amount of the construction cost of the building based on the usage amount information for each building material; constructor remittance means for performing a process of remitting an amount that is a first ratio of the construction payment obtained from the client of the building to the mediator; wherein the mediator management device, mediator remittance means for performing a process of remitting an amount that is a second ratio of the amount that is the first ratio to the user, characterized in that the construction business mediation system has the above.

2. A construction business mediation method executed in a construction business mediation system including a constructor management device managed by a constructor of a building, a user management device managed by a user who creates a structural design drawing for building confirmation application related to the building using software for creating a structural design drawing, and a mediator management device managed by a mediator of the business between the constructor and the user, in the user management device, A step of creating material usage meta-information for generating usage amount information for each building material used in the construction of the building based on the structural body information input for creating the structural design drawings for building confirmation applications by the meta-information creation means; In the intermediary management device, A step of the meta-information notification means notifying the obtained material usage meta-information to the constructor management device; In the constructor management device, A step of the usage amount information generation means generating usage amount information for each building material based on the material usage meta-information; A step of the estimated construction cost calculation means calculating an estimated amount of the construction cost of the building based on the usage amount information for each building material; A step of the constructor remittance means performing a process of remitting an amount that is a first ratio of the construction cost obtained from the donor of the building to the intermediary; In the intermediary management device, A step of the intermediary remittance means performing a process of remitting an amount that is a second ratio of the amount that is the first ratio to the user, including a construction business intermediation method.

Images