Program

Abstract

To provide a program in which a client of house building comprehends a reference estimated amount of each construction of the house building, and then information transmission related to the house building can be performed among a plurality of housing companies.SOLUTION: A program PG causes a computer 10 to execute: a function S20 which receives client information including a building location, a site area, a desired condition related to each construction by types of business of a housing company and a reference estimated amount of each construction from a plurality of client terminals 20; a function S30 which displays the plurality of pieces of client information on a plurality of vendor terminals 20; a function S40 which displays proposals inputted from the plurality of vendor terminals 30 on a part or all of terminals toward the part or all of terminals of the plurality of client terminals 20 to which the client information is inputted; and a function S50 which displays answers to the proposals inputted from the part or all of terminals, on the plurality of vendor terminals 30 to which the proposals are inputted.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a program, and more particularly to a program for home building. [Background technology]

[0002] Generally speaking, buying a home is a big purchase that one makes maybe once in one's life. There are two types of homes: prefabricated homes and apartment complexes, where most of the specifications are already decided, and homes where the construction site and structure of the building are finished to original specifications (for example, custom-built homes). In the former case, the future homeowner purchases a home with almost all of the specifications already decided, but in the latter case, the future homeowner (client) will decide on various specifications with the support of a housing manufacturer or other contractor, for example.

[0003] The inventor of the present application became aware of "Wooden House Construction Specifications (Published by the Japan Housing Finance Association)" several years ago, and has since conducted research and studies on specifications, construction costs, material procurement, cost management, processes, and methods of providing estimates from housing-related businesses such as housing manufacturers in housing construction that have been carried out from the past to the present. Construction of custom-built homes involves complex relationships between housing-related businesses from various industries. For this reason, it is extremely difficult for an average owner to judge the validity of estimates for various construction works provided by housing-related businesses such as housing manufacturers.

[0004] Incidentally, Patent Document 1 discloses a housing construction support system that allows a user to submit a construction plan and submit a bid, as shown in FIG. 1 and other figures. Specifically, the housing construction support system disclosed in Patent Document 1 is a housing construction support system including a server connected to a network, which holds information about builders and provides content to support the user in housing construction. The server includes: (1) a means for transmitting a plurality of the contents to the user through the network together with a real estate agent identifier; (2) a means for receiving a content selection signal by the user; (3) a means for listing information about the builder related to the content selection signal from the held information about the builder when providing information about the builder related to the received content selection signal; (4) a means for transmitting the listed information about the builder to the user; and (5) a means for displaying an application sheet screen with the real estate agent identifier to the user when making a specific application request related to the content selection signal, to prompt the user to input information.

[0005] Furthermore, as indicated in paragraph "0006" of the specification of Patent Document 1, it is stated that by using the housing construction support system disclosed in Patent Document 1, a person planning to build a house can select a construction company by himself / herself. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2003-36286 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, although the housing construction support system disclosed in Patent Document 1 is capable of matching clients with construction companies (housing-related contractors), it does not do so after the client has learned the standard estimates for each construction project provided by all housing-related contractors.

[0008] One of the objects of the present invention is to provide a program that enables a client of a house construction project to learn the standard estimate for each construction project, and then enables the communication of information regarding the house construction project between the client and multiple housing-related contractors. [Means for solving the problem]

[0009] The program of the first aspect comprises: A program that operates on a computer that is communicably connected to a client terminal used by each of a plurality of clients in a house construction project and a contractor terminal used by each of a plurality of housing-related contractors, and that enables information transmission related to house construction between the plurality of client terminals and the plurality of contractor terminals, The computer includes: A client information receiving function for receiving client information input from each of the plurality of client terminals, the client information including (1) the construction site, (2) the site area, and (3) the desired conditions for each construction project by type of business of the housing-related contractor and the standard estimated price for each construction project; a client information display function for displaying the client information on each of the plurality of business terminals; a proposal display function for displaying proposals input from each of the plurality of provider terminals on some or all of the plurality of client terminals to which the client information has been input; a response display function for displaying responses to the proposal input from some or all of the terminals on each of the plurality of agent terminals to which the proposal has been input; Execute the command.

[0010] The program of the second aspect is In the program of the first aspect, The building site, the site area, and the desired conditions can be inputted through a selectable user interface from the screen of each of the plurality of client terminals; The standard estimate for each of the construction works is calculated based on a unit price preset for each of the construction works.

[0011] The program of the third aspect is In the program of the second aspect, The plurality of housing-related businesses include a design business that designs a house and a construction business that performs each construction work based on the house design, The client information is displayed on each of the multiple contractor terminals after the client's client terminal, which is the basis of the client information, receives a proposal from the architect's contractor terminal using the proposal display function, responds to the proposal using the response display function, and requests a house design.

[0012] The program of the fourth aspect is In the program of the third aspect, The client information is updated and displayed on each of the multiple contractor terminals after the client terminal that is the basis of the client information receives a proposal from the contractor terminal of the contractor who will perform each of the works using the proposal display function, responds to the proposal using the response display function, and requests the contractor to perform the works.

[0013] The program of the fifth aspect is In the program of the fourth aspect, moreover, The computer includes: A contractor schedule display function for displaying a schedule of a contractor who will perform each of the construction works on each of the plurality of client terminals and each of the plurality of contractor terminals; Run the command, The client terminal of the client on which the client information is based, the contractor terminal of the design firm that designed the house for the client, and the contractor terminal of the contractor to whom the client has commissioned work are used to inquire about changing the contractor to a contractor terminal of another contractor among the multiple contractors other than the contractor in question, and after approval is obtained, the schedule for each of the construction works is updated and displayed on each of the multiple contractor terminals.

[0014] The program of the sixth aspect is In the program of the fifth aspect, moreover, The computer includes: An evaluation input function that quantitatively evaluates the housing-related contractors involved in the construction of a house after the construction is completed from the client terminals of multiple clients; a trader evaluation display function for displaying the quantitatively evaluated values ​​by the evaluation input function on the client terminals of a plurality of client terminals; Execute the command. Effect of the Invention

[0015] According to the programs of the first to sixth aspects, it becomes possible for a client of house construction to obtain standard estimates for each construction work for house construction, and then for information regarding house construction to be communicated between the client and a plurality of housing-related contractors. [Brief description of the drawings]

[0016] [Figure 1] 1 is a schematic diagram of a house construction system according to an embodiment of the present invention (hereinafter referred to as this embodiment). [Diagram 2] FIG. 2 is a schematic diagram of a server according to the present embodiment. [Diagram 3] FIG. 2 is a flow diagram of a program according to the present embodiment. [Figure 4] 13 is an example of a user interface displayed on a screen of a client terminal in the present embodiment. [Diagram 5] 4 is an example of a schedule for house construction displayed on the screen of a client terminal and a contractor terminal in this embodiment. [Figure 6] FIG. 1 is a flow diagram of a conventional house construction. [Figure 7] FIG. 11 is a flow diagram of a program according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Overview The present embodiment will be described below, followed by a number of modified examples.

[0018] <<Present embodiment>> Hereinafter, the configuration and functions of the house construction system RBS (see FIG. 1) of this embodiment, as well as the effects of this embodiment, will be described with reference to FIGS.

[0019] <Configuration and Functions of the House Construction System of the Present Embodiment> As shown in Figure 1, the residential construction system RBS comprises a management server 10 (an example of a computer), a number of client terminals 20 (20A, 20B, 20C, ...), and a number of contractor terminals 30 (30A, 30B, 30C, 30D, 30E, ...). The home construction system RBS is hardware that enables the transmission of information regarding home construction between multiple client terminals 20 and multiple contractor terminals 30 via a management server 10 that is communicatively connected to each of (1) multiple client terminals 20A, 20B, 20C, ... used by each of multiple client U1, U2, U3, ... who wishes to build a home, and (2) each contractor terminal 30A, 30B, 30C, 30D, 30E, ... used by each of multiple home-related contractors C1, C2, C3, C4, C5, ... using a communication network NW such as the Internet.

[0020] <Multiple client terminals> The multiple client terminals 20 (20A, 20B, 20C,...) are terminals used by multiple client U1, U2, U3,... who wish to build a house. Each client terminal 20A, 20B, 20C,... is capable of running a program PG (see FIG. 3) of this embodiment described later. Specifically, the program PG is installed in each client terminal 20A, 20B, 20C,... or a web browser in which the program PG can run as a web application is installed. The program PG is available to each user (in this case, multiple client U1, U2, U3,... for building a house) who uses each client terminal 20A, 20B, 20C,... after registering personal information (address, name, age, etc.), for example, from each client terminal 20A, 20B, 20C,... and registering as a member. The client terminals 20A, 20B, 20C, etc. may be of any type as long as they are communicably connected to the management server 10 using a communication network NW such as the Internet. In other words, they may be personal computers, smartphones, mobile phones, tablets, or other information and communication terminals.

[0021] <Multiple vendor terminals> The multiple contractor terminals 30 (30A, 30B, 30C, 30D, 30E, ...) are terminals used by multiple housing-related contractors C1, C2, C3, C4, C5, .... Each of the contractor terminals 30A, 30B, 30C, 30D, 30E, ... is capable of running the program PG (see FIG. 3) of this embodiment. Specifically, each of the contractor terminals 30A, 30B, 30C, 30D, 30E, ... has the program PG installed therein or a web browser in which the program PG can run as a web application installed therein. The program PG can be used by each user (in this case, multiple housing-related contractors C1, C2, C3, C4, C5, ...) of each contractor terminal 30A, 30B, 30C, 30D, 30E, ... to register as a member by registering, for example, personal information (address, name, age, etc.) or contractor information (address, corporate name, etc.) from each contractor terminal 30A, 30B, 30C, 30D, 30E, .... The provider terminals 30A, 30B, 30C, 30D, 30E, etc. may be of any type as long as they are communicably connected to the management server 10 using a communication network NW such as the Internet. In other words, they may be personal computers, smartphones, mobile phones, tablets, or other information and communication terminals.

[0022] Here, examples of the multiple housing-related contractors C1, C2, C3, C4, C5, . . . include the contractors shown in Table 1. Also, examples of various types of construction work required for house construction include the construction work shown in Table 2.

[0023] [Table 1]

[0024] [Table 2]

[0025] <Management server and programs included in the management server> As shown in FIG. 1, the management server 10 is, as an example, a cloud server arranged on a cloud CLD, and is intended to manage a plurality of client terminals 20 (20A, 20B, 20C, ...) and a plurality of vendor terminals 30 (30A, 30B, 30C, 30D, 30E, ...).

[0026] As shown in FIG. 2, the management server 10 includes a processing unit 12 (an example of which is a CPU (Central Processing Unit)) and a storage unit 14 (an example of which is a memory). The processing unit 12 reads out data stored in the storage unit 14 and performs arithmetic processing. As an example, the data includes an application AP. The application AP includes a program PG (see FIG. 3), a data file DF, and various libraries LB.

[0027] 3, the program PG has functions for causing the management server 10 to execute a requester information input function S10, a requester information receiving function S20, a requester information display function S30, a proposal display function S40, a response display function S50, and various judgment functions S60, S70, and S80. These functions are executed in the order listed. Here, executing the program PG, in other words, all steps S100 of the program PG means executing a requester information input step, a requester information receiving step, a requester information display step, a proposal display step, a response display step, and various judgment steps, which correspond to a requester information input function S10, a requester information receiving function S20, a requester information display function S30, a proposal display function S40, a response display function S50, and various judgment functions S60, S70, S80, in the order listed.

[0028] Next, each of the basic functions that the program PG causes the management server 10 to execute will be described with reference to the flow chart of FIG.

[0029] (Requester information input function) The client information input function S10 is a function for inputting information related to house construction from the screen (see FIG. 4) of each client terminal 20A, 20B, 20C, etc. More specifically, the information related to house construction means information including (1) the construction site of the house, (2) the site area, and (3) the desired conditions for each construction work by type of housing-related contractor and the standard estimated price for each construction work (hereinafter referred to as client information). When each of the client U1, U2, U3, etc. uses each of the client terminals 20A, 20B, 20C, etc. to operate the program PG and display a screen for inputting information required for house construction, a selectable user interface (UI) such as that shown in FIG. 4 is displayed. Then, the client U1, U2, U3, etc. can input (1) the construction site of the house, (2) the site area, and (3) the desired conditions for each construction by type of business of the housing-related contractor through the user interface. In addition, when the client U1, U2, U3, etc. inputs (3) the desired conditions for each construction by type of business of the housing-related contractor through this user interface, a standard estimate for each construction is calculated based on a unit price preset for each construction. Here, the preset unit price is set by the administrator of the management server 10 after investigating various documents, material costs, etc. related to house construction.

[0030] (Requester information reception function) The client information receiving function S20 is a function for receiving information (client information) including (1) the construction site of the house, (2) the site area, and (3) desired conditions for each construction project by type of business of the housing-related contractor, which are input by the client U1, U2, U3, ... when the client information input function S10 is executed, and the standard estimate amount for each construction project calculated as a result of these inputs. The client information received by the management server 10 is stored in the memory unit 14 (see FIG. 2). In addition, the client terminals 20A, 20B, 20C, ... which have input the information on which the client information is based can view the client information via the communication network NW.

[0031] (Requester information display function) The requester information display function S30 is a function for displaying a plurality of pieces of requester information input from each of the requester terminals 20A, 20B, 20C, . . . on each of the plurality of agent terminals 30A, 30B, 30C, 30D, 30E, . . .

[0032] (Suggestion display function) The proposal display function S40 is a function that displays proposals input from each of the multiple contractor terminals 30A, 30B, 30C, 30D, 30E, ... on some or all of the multiple client terminals 20A, 20B, 20C, ... where client information has been input. Here, proposals include, for example, (1) to perform house design from a house manufacturer, construction company, etc. and management of multiple construction companies at a certain proposed price, (2) to contract for specific construction work from various construction companies or craftsmen (one-man boss) at a certain proposed price, and a further 20% discount from the desired price is possible if materials of a color different from the desired color are used in the specific construction work. In any case, the contractor for the house design is decided at first.

[0033] (Answer display function) The response display function S50 is a function for displaying responses from the requesters U1, U2, U3, etc. to the proposal (responses input from the requesters U1, U2, U3, etc. to the multiple requester terminals 20A, 20B, 20C, etc.) on each of the multiple contractor terminals 30A, 30B, 30C, 30D, 30E, etc. where the proposals have been input. Here, responses include, for example, (1) in response to a proposal from a house manufacturer, etc., "We would like to request your request, so please arrange a meeting," "We would like to request your request, but we would like the proposed amount reduced by about 5%," and (2) in response to various construction companies or craftsmen (one-man bosses), "We would like you to undertake the construction using materials of a different color than the desired color," etc.

[0034] (Various judgment functions) Next, the various determination functions S60, S70, and S80 will be described. First, the various judgment functions S60, S70, S80 respectively judge whether (1) a house design has been requested, (2) a schedule (see FIG. 5) has been completed, and (3) the house has been completed. Specifically, the client terminals 20A, 20B, 20C, etc. used by the client U1, U2, U3, etc. respectively input (1) that a house design has been requested (for example, by pressing a selection button), (2) that the schedule (see FIG. 5) has been completed (for example, by pressing a selection button), and (3) that the house has been completed (for example, by pressing a selection button). Here, in the case of (1) above, that is, when a positive judgment is made in the judgment function (or judgment step) S60 of FIG. 3, the fact that the client has requested a certain contractor to design a house is actually displayed on the multiple contractor terminals 30A, 30B, 30C, 30D, 30E, .... Then, when the client U1, U2, U3, ... respectively use the client terminals 20A, 20B, 20C, ... to input that fact (as an example, by pressing a selection button) that the house (3) has been completed, the management server 10 makes an affirmative judgment and the program ends.

[0035] The above is a description of the configuration and functions of the house construction system RBS of this embodiment. Note that other functions (functions other than the basic functions) of the program PG of this embodiment will be described later in the description of the effects of this embodiment.

[0036] <Effects of this embodiment> Next, the effects of this embodiment will be described with reference to the drawings.

[0037] <First effect> The first effect will be explained below in comparison with the case of conventional house construction.

[0038] 6 is a diagram showing an example of a conventional house construction flow, in which house construction is carried out in the order of first to fourth stages. ======================================== Phase 1 First, the owner consults with (1) a home builder, (2) a construction company, or (3) a design firm about building a house, enters into a contract with one of them (for example, (1) a home builder), and asks the latter to handle the entire house construction (home design and management of the construction company). Phase 2 Next, the (1) house builder that is the client creates a construction plan based on the client's requests and presents a specific estimate to the client. After that, (1) the house builder arranges for multiple construction companies (construction contractors, one-man contractors, etc.) after reaching an agreement with the client. Phase 3 The client (1) a house builder manages the multiple construction companies (construction contractors, independent contractors, etc.) that it has arranged in accordance with the schedule of the construction plan, and carries out the construction of the house according to the schedule. Phase 4 After the construction of the house is completed (after the construction plan has been executed), the commissioned (1) house builder hands the house over to the client, and the construction is completed. ======================================== In traditional house construction, the client first (stage 1) requests a contractor (e.g. a house builder) to build the entire house, and then (stages 2 to 4) the contractor proceeds with the construction of the house.

[0039] In contrast, in this embodiment, house construction is carried out by the program PG causing the management server 10 to execute a client information receiving function S20, a client information display function S30, a proposal display function S40, and a response display function S50, as shown in Figure 3. Therefore, the client (owner) can obtain the standard estimate for each construction work in advance via the client information receiving function S20, and can receive proposals from the housing-related contractor after having the home-related contractor obtain his / her information (client information) via the client information display function S30 and proposal display function S40. Furthermore, the housing-related contractor can send his / her proposal to the client who is the basis of the client information via the client information display function S30 and proposal display function S40. Therefore, unlike the conventional case of house construction (see FIG. 6), it is effective in that each contractor is not in a subcontracted position to the manager (house manufacturer) but can directly enter into a contract with the client.

[0040] <Second effect> If a positive judgment is made in the judgment function S60 (or judgment step S60) in FIG. 3, as described above, a message is displayed on the multiple contractor terminals 30A, 30B, 30C, 30D, 30E, ... indicating that the client has requested a contractor to design a house. Therefore, according to the program PG of this embodiment, other contractors who were planning to make house design proposals other than the particular contractor can know that a house designer has already been decided.

[0041] 3 (decision step S70) and a negative decision is made in the decision function S80 (decision step S80), that is, after the schedule (see FIG. 5) is completed (until the house is completed), the process returns to the client information display function S30 (client information display step S30). Then, the schedule (see FIG. 5) is added to the client information and displayed on the multiple contractor terminals 30A, 30B, 30C, 30D, 30E, . . . Therefore, a plurality of construction businesses (various construction companies or craftsmen (one-man bosses)) can propose their own specific construction projects by referring to this schedule.

[0042] <Third effect> The schedule shown in Fig. 5 is displayed on multiple contractor terminals 30A, 30B, 30C, 30D, 30E, etc., and each contractor can select and propose a schedule and various construction projects from the rightmost column on the screen. When a contractor is selected, the column indicates that the contractor has been selected, i.e., the schedule is updated and displayed, and the contractor cannot be selected. Thus, a number of construction companies (various construction companies or craftsmen (one-man bosses)) can propose their own specific constructions after consulting the updated schedule.

[0043] The above is a description of the effects of this embodiment. Also, the above is a description of this embodiment.

[0044] <<Multiple Modifications>> As described above, the present invention has been described with reference to the present embodiment, but the present invention is not limited to the present embodiment. The present invention also includes, for example, the various modified examples described below.

[0045] For example, in this embodiment, after executing the client information display function S30, the proposal display function S40 and the response display function S50 are executed (see FIG. 3). The proposal display function S40 is for multiple housing-related contractors C1, C2, C3, C4, C5, ... to make proposals to clients U1, U2, U3, ... of house construction based on their client information, and the response display function S50 is for displaying responses to the proposals from the client U1, U2, U3, ... on each contractor terminal 30A, 30B, 30C, .... However, each contractor terminal 30A, 30B, 30C, etc. may be able to transmit information to each other via the management server 10 when a specific situation arises. For example, if a construction company that has undertaken a certain construction project by referring to a schedule finds it difficult to carry out the work due to certain circumstances, the client, the manager of the house construction, or the contractor in question may be able to ask another contractor's contractor terminal 30A, etc. to change the contractor, and the contractor who has been asked may be able to send an acceptance (response). When this change is confirmed, the contents of the schedule may be changed. According to this modified example, construction can proceed smoothly even if there is a change in some of the construction contractors for the house construction.

[0046] Also, for example, as shown in FIG. 7, an evaluation input function S90 for quantitatively evaluating housing-related contractors 30B, 30C, 30D, 30E, ... involved in the construction of a house after the construction of the house is completed may be executed from the client terminals 20A, 20B, 20C, ... of multiple client, and a contractor evaluation display function S95 for subsequently displaying the values ​​quantitatively evaluated by the evaluation input function (for example, numerical evaluation on a five-point scale) on the client terminals 20A, 20B, 20C, ... of the multiple client. According to this modification, new clients U1, U2, U3, . . . can select evaluators by referring to the evaluations of the providers.

[0047] Furthermore, for example, when construction companies and craftsmen with high evaluation values ​​in the aforementioned evaluation input function S90 are displayed on the screens of multiple client terminals 20A, 20B, 20C, ... and multiple contractor terminals 30A, 30B, 30C, 30D, 30E, ..., they may be displayed as competent contractors (for example, given a title such as master craftsman). Such master craftsmen have extremely valuable skills in the building and construction industries, which are short of human resources. Therefore, by utilizing the fact that the aforementioned contractor terminals 30A, 30B, 30C, etc. can transmit information to each other, a contractor who has been contracted to build a house can contact a master craftsman and request technical guidance on-site or online. [Explanation of symbols]

[0048] 10 Management Server 12 Processing section 14 Storage section 20 Client terminal 20A Client terminal 20B Client terminal 20C Requester terminal 30 Vendor terminal 30A Business Terminal 30B Business terminal 30C Business Terminal 30D Business Terminal 30E Business Terminal AP Application C1 Housing-related businesses C2 Housing-related businesses C3 Housing-related businesses C4 Housing-related businesses C5 Housing-related businesses CLD Cloud DF data file LB Various Libraries NW Communication network Postgraduate Program RBS Residential Building Systems S10 Requester information input function S20 Requester information receiving function S30 Requester information display function S40 suggestion display function S50 Answer display function S60 judgment function S70 Judgment function S80 judgment function S90 Evaluation input function S95 Business evaluation display function U1 Requester U2 Client U3 Requester

Claims

1. A program that operates on a computer that is communicably connected to a client terminal used by each of a plurality of clients in a house construction project and a contractor terminal used by each of a plurality of housing-related contractors, and that enables information transmission related to house construction between the plurality of client terminals and the plurality of contractor terminals, The computer includes: A client information receiving function for receiving client information input from each of the plurality of client terminals, the client information including (1) the construction site, (2) the site area, and (3) the desired conditions for each construction project by type of business of the housing-related contractor and the standard estimated price for each construction project; a client information display function for displaying the client information on each of the plurality of business terminals; a proposal display function for displaying proposals input from each of the plurality of provider terminals on some or all of the plurality of client terminals to which the client information has been input; a response display function for displaying responses to the proposal input from some or all of the terminals on each of the plurality of agent terminals to which the proposal has been input; Execute the program.

2. The building site, the site area, and the desired conditions can be inputted through a selectable user interface from the screen of each of the plurality of client terminals; The standard estimate for each construction project is calculated based on a unit price preset for each construction project. The program according to claim 1.

3. The plurality of housing-related businesses include a design business that designs a house and a construction business that performs each construction work based on the house design, The client information is displayed on each of the multiple contractor terminals after the client terminal on which the client information is based receives a proposal from the contractor terminal of the design firm through the proposal display function, responds to the proposal through the response display function, and requests a house design. The program according to claim 2.

4. The client information is displayed on each of the plurality of contractor terminals after the client terminal on which the client information is based receives a proposal from the contractor terminal of the contractor who will carry out each of the construction works by using the proposal display function and responds to the proposal by using the response display function to request the contractor to carry out the construction work. The program according to claim 3.

5. moreover, The computer includes: A contractor schedule display function for displaying a schedule of a contractor who will perform each of the construction works on each of the plurality of client terminals and each of the plurality of contractor terminals; Run the command, The client terminal of the client on which the client information is based, the contractor terminal of the design contractor who designed the house for the client, and the contractor terminal of the contractor to whom the client has requested construction are used to contact a contractor terminal of a contractor other than the contractor in question among the multiple contractors, and after approval is obtained, the schedule for each of the construction works is updated and displayed on each of the multiple contractor terminals. The program according to claim 4.

6. moreover, The computer includes: An evaluation input function that quantitatively evaluates the housing-related contractors involved in the construction of a house after the construction is completed from the client terminals of multiple clients; a trader evaluation display function for displaying the quantitatively evaluated values ​​by the evaluation input function on the client terminals of a plurality of client terminals; Execute the The program according to claim 5.

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