Trading system

Abstract

To provide a trading system for planning smooth trading.SOLUTION: A trading system 1 connects a seller terminal used by a seller, a buyer terminal used by a buyer, a seller side broker terminal used by a broker of the seller, a buyer side broker terminal used by a broker of the buyer, and a server managed by a manager with one another via a network to allow the seller and the buyer to trade a trading object, and notifies both of the seller terminal and the seller side broker terminal of a fact that there is a provision request of information concerning the trading object of the seller when there is the presentation request of the information concerning the trading object of the seller from the buyer terminal.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a trading system. [Background technology]

[0002] Patent Document 1 discloses a technology relating to a buying and selling system that smoothly matches sellers and buyers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-035444 A Summary of the Invention [Problem to be solved by the invention]

[0004] In this type of trading system, there has been a demand for a system that allows smooth trading.

[0005] The present invention provides a buying and selling system that can facilitate smooth buying and selling. [Means for solving the problem]

[0006] A trading system according to a first aspect of the present invention comprises: A buying and selling system that enables sellers and buyers to buy and sell items by connecting a seller terminal used by a seller, a buyer terminal used by a buyer, a seller-side broker terminal used by the seller's broker, a buyer-side broker terminal used by the buyer's broker, and a server managed by an administrator through a network, The server A means for receiving at least one of information related to the seller and information related to the seller's trading object (hereinafter referred to as information A1) from the seller terminal and storing it in a database; A means for receiving at least one of information related to the seller and information related to the subject of the seller's sale (hereinafter referred to as information A2) from the seller's intermediary terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the buyer's trading object (hereinafter referred to as information B1) from the buyer terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the subject of the buyer's sale (hereinafter referred to as information B2) from the buyer's broker terminal and storing it in a database; A means for providing information B1 stored in a database in response to a request for providing information B1 from a seller terminal; A means for providing information B2 stored in a database in response to a request for providing information B2 from a seller terminal; A means for providing information A1 stored in a database in response to a request for providing information A1 from a buyer terminal; A means for providing information A2 stored in a database in response to a request for providing information A2 from a buyer terminal; a means for notifying both the seller terminal and the seller's intermediary terminal of a request for provision of the information A2 when the request for provision of the information A2 is received from the buyer terminal; The buying and selling system is characterized by comprising:

[0007] A trading system according to a second aspect of the present invention comprises: A sales object support system that enables sellers and buyers to buy and sell sales objects by connecting a seller terminal used by a seller, a buyer terminal used by a buyer, a seller side broker terminal used by a seller's broker, a buyer side broker terminal used by a buyer's broker, an expert terminal used by a sales expert, and a server managed by an administrator through a network, The server A means for receiving at least one of information related to the seller and information related to the seller's trading object (hereinafter referred to as information A1) from the seller terminal and storing it in a database; A means for receiving at least one of information related to the seller and information related to the subject of the seller's sale (hereinafter referred to as information A2) from the seller's intermediary terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the buyer's trading object (hereinafter referred to as information B1) from the buyer terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the subject of the buyer's sale (hereinafter referred to as information B2) from the buyer's broker terminal and storing it in a database; A means for receiving information related to the expert (hereinafter referred to as information C) from the expert terminal and storing it in a database; A means for providing information B1 stored in a database in response to a request for providing information B1 from a seller terminal; A means for providing information B2 stored in a database in response to a request for providing information B2 from a seller terminal; A means for providing information A1 stored in a database in response to a request for providing information A1 from a buyer terminal; A means for providing information A2 stored in a database in response to a request for providing information A2 from a buyer terminal; a means for notifying both the seller terminal and the seller's intermediary terminal of a request for provision of the information A2 when the request for provision of the information A2 is received from the buyer terminal; A means for providing information C stored in a database in response to an introduction request from a seller terminal or a buyer terminal; The buying and selling system is characterized by comprising:

[0008] Preferably, The server A means for assigning a unique identifier to information related to the seller's trading object in the information A2; A means for prohibiting storage of the same identifier in the database; It is equipped with the following. Effect of the Invention

[0009] The buying and selling system of the present invention enables smooth buying and selling. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram showing a buying and selling system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an image diagram for explaining the flow of buying and selling in the buying and selling system according to FIG. 1. [Diagram 3] FIG. 11 is a flow diagram illustrating a process for registering in a server database. [Figure 4] FIG. 13 is a flow diagram illustrating a process for introducing an expert. [Diagram 5] FIG. 13 is a flow diagram illustrating the processing at the time of buying and selling. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] <Embodiment>

[0012] FIG. 1 is a schematic diagram showing a buying and selling system according to an embodiment of the present invention.

[0013] 1 and 2, the buying and selling system 1 has a seller terminal 2, a buyer terminal 3, a seller's intermediary terminal 4, a buyer's intermediary terminal 5, an expert terminal 6, and a server 7. The seller terminal 2, buyer terminal 3, seller's intermediary terminal 4, buyer's intermediary terminal 5, expert terminal 6, and server 7 are connected to each other via the Internet (communications network).

[0014] The buying and selling system 1 enables sellers and buyers of real estate (objects of sale) to buy and sell real estate (properties), and matches sellers and buyers.

[0015] The seller terminal 2 is a terminal used by the seller of the real estate. As the seller terminal 2, for example, a general-purpose computer device or a smartphone can be used.

[0016] The buyer terminal 3 is a terminal used by a buyer of real estate. As the buyer terminal 3, for example, a general-purpose computer device or a smartphone can be used.

[0017] The seller's intermediary terminal 4 is a terminal used by the seller's intermediary. As the seller's intermediary terminal 4, for example, a general-purpose computer device or a smartphone can be used.

[0018] The buyer's broker terminal 5 is a terminal used by the buyer's broker. As the buyer's broker terminal 5, for example, a general-purpose computer device or a smartphone can be used.

[0019] The expert terminal 6 is an expert terminal used by experts involved in real estate buying and selling, such as real estate agents, land and house surveyors, ER (engineering report) companies, land survey companies, and other professionals. As the expert terminal 6, for example, a general-purpose computer device or a smartphone can be used.

[0020] The server 7 functions as a platform required for operating the trading system 1. The server 7 is managed by an administrator (such as a management company) of the trading system 1. The server 7 is, for example, a general-purpose computer device, and has programs installed (stored) for performing various processes related to the trading system 1. The server 7 generally has a CPU, memory, a database 71, etc.

[0021] The server 7 is capable of receiving information on the seller (such as the seller's name and address) and information on the real estate the seller wants to sell (such as the type, address, size, and value of the property) (hereinafter, this information will be collectively referred to as information A1) from the seller terminal 2. The server 7 is capable of storing the received information A1 in the database 71.

[0022] The server 7 is capable of receiving information on the seller, information on the seller's agent, information on the real estate the seller wishes to sell, etc. (hereinafter, this information will be collectively referred to as information A2) from the seller's agent terminal 4. The server 7 is capable of storing the received information A2 in the database 71.

[0023] The server 7 is capable of receiving information related to the buyer (such as the buyer's name and address) and information related to the real estate the buyer wants to purchase (hereinafter, this information will be collectively referred to as information B1) from the buyer terminal 3. The server 7 is capable of storing the received information B1 in the database 71.

[0024] The server 7 is capable of receiving information on the buyer, information on the buyer's broker, information on the real estate the buyer wants to purchase (type of property, address, size, value, etc.) (hereinafter, this information will be collectively referred to as information B2) from the buyer's broker terminal 5. The server 7 is capable of storing the received information B2 in the database 71.

[0025] The server 7 is capable of processing to receive information related to experts (hereinafter, referred to as information C) from the expert terminal 6. The server 7 is capable of processing to store the received information C in a database 71.

[0026] The server 7 is capable of processing to extract any of the information A1, A2, B1, B2, C stored in the database 71 in response to a request from the seller terminal 2 (for example, a request to view the information stored in the database 71). The server 7 is capable of processing to extract any of the information A1, A2, B1, B2, C stored in the database 71 in response to a request from the buyer terminal 3. The server 7 is capable of processing to transmit the extracted information to any of the seller terminal 2, buyer terminal 3, seller's intermediary terminal 4, buyer's intermediary terminal 5, or expert terminal 6, thereby providing the extracted information to any of these terminals.

[0027] The server 7 is capable of processing various notifications to the seller terminal 2, the buyer terminal 3, the seller's intermediary terminal 4, the buyer's intermediary terminal 5, and the specialist terminal 6.

[0028] The server 7 can perform a process of assigning a unique identifier to information related to real estate that the seller wants to sell in the information A2. The server 7 can perform a process of prohibiting (blocking) storage in the database 71 of the same identifier.

[0029] For example, when the server 7 receives information α1 relating to real estate in the information A2 from the seller's broker terminal 4 used by a seller's broker A, the server 7 performs a process of assigning an identifier (code) α1. Thereafter, the server 7 performs a process of determining whether or not information A2 relating to the identifier α1 is stored in the database 71. For example, when the server 7 receives information α2 relating to real estate in the information A2 from the seller terminal 2 of a seller's broker B, the server 7 performs a process of assigning an identifier α2. Thereafter, the server 7 performs a process of determining whether or not information A2 relating to the identifier α2 is stored in the database 71. As a result, if neither is stored, the server 7 performs a process of storing information A2 relating to these identifiers α1 and α2 in the database 71.

[0030] On the other hand, when the information α1 relating to real estate to which the identifier α1 has been assigned is stored in the database 71, and there is information α1 relating to real estate in information A2 from the seller terminal B of another seller's agent B, the server 7 performs a process of assigning the identifier α1. The server 7 then performs a process of determining whether or not information A relating to this identifier α1 is stored in the database 71. In this case, since the information α1 relating to real estate to which the identifier α1 has been assigned is already present in the database 71, the server 7 does not perform a process of storing the information α1 relating to real estate in information A2 from the seller terminal B of another seller's agent B in the database 71.

[0031] In this embodiment, the identifier α1 is assigned to an address or the like that can identify the real estate, such as B1-23-4, A-ku, Tokyo in the case of a detached house, Room XX, 1-23-4, B-city, A-ku, Tokyo in the case of a condominium or apartment, or 1-23-4, M-floor, B-city, A-ku, Tokyo in the case of a building, etc., and in the case of addresses or the like that can identify the real estate, a program can be used that assigns the same identifier to the same addresses or the like.

[0032] This makes it possible to prevent multiple agents (dealers) from storing the same real estate in the database 71. As a result, it is possible to ensure that only one agent is involved in the same real estate.

[0033] FIG. 2 is an image diagram for explaining the flow of buying and selling in the buying and selling system according to FIG.

[0034] Real estate sellers and buyers apply for membership registration to the administrator and are registered as members by being approved by the administrator. Real estate sellers and buyers can only use the sales system 1 free of charge once they have registered as members. Seller's and buyer's agents also apply for membership registration to the administrator and are registered as members by being approved by the administrator. Seller's and buyer's agents can only use the sales system 1 free of charge once they have registered as members. Experts are registered as experts that the administrator can introduce at the request of the administrator or at the application of the experts.

[0035] The seller can store information A1 in database 71 (post information A1 free of charge) by accessing server 7 through seller terminal 2. A seller's agent, such as a real estate agency that has entered into an agency contract (such as a general agency contract) with the seller, can access server 7 through seller's agent terminal 4 and perform services such as storing information A2 in database 71 (post information A2 free of charge) with the seller's consent. If the buyer does not have a buyer's agent, the seller's agent can also enter into an agency contract with the buyer.

[0036] A buyer can store information B1 in the database by accessing server 7 through buyer terminal 3 (in other words, the buyer's real estate acquisition needs can be posted free of charge). A buyer's agent, such as a real estate agency that has entered into an agency contract with the buyer, can access server 7 through buyer's agent terminal 5 and provide services such as storing information B2 in database 71 (posting information B2 free of charge) with the buyer's approval. Information relating to experts is stored in database 71 by the administrator (expert information is posted).

[0037] Buyers can access server 7 using buyer terminal 3 to view and inquire about posted real estate information free of charge. This allows buyers to purchase real estate by negotiating directly with the seller or through a seller's intermediary or buyer's intermediary. When a real estate transaction is concluded through a seller's intermediary or buyer's intermediary, the seller or buyer pays a closing fee to the seller's intermediary or buyer's intermediary. In turn, the seller's intermediary or buyer's intermediary pays a closing fee to the administrator.

[0038] In the case of direct negotiation between the seller and the buyer, there is a risk that the seller and the buyer do not have specialized knowledge on real estate transactions, and the real estate transaction may not be carried out smoothly. In this case, the seller (buyer) accesses the server 7 via the seller terminal 2 (buyer terminal 3) and sends a notice (inquiry request) that an expert is introduced to him / her. The server 7 that receives this notice performs a process of extracting the expert requested by the seller (buyer) from the experts stored in the database 71, and then performs a process of sending the extracted expert's information to the seller terminal 2 (buyer terminal 3) (introducing the customer to the expert). This allows the seller (buyer) to connect with the expert, and to carry out real estate transactions through the expert. The expert who is connected to the seller (buyer) pays an introduction fee to the administrator. On the other hand, the seller (buyer) who receives services such as advice from the expert pays the expert a service fee according to the service.

[0039] FIG. 3 is a flow diagram illustrating the process of registering in the server database.

[0040] 3, the process for registering information in database 71 of server 7 will be described. The processes involved in this process include seller terminal 2, buyer terminal 3, seller's intermediary terminal 4, buyer's intermediary terminal 5, and expert terminal 6, as well as information A1, A2, B1, B2, and C from these terminals, but because all of them perform the same process, the above terminals 2 to 6 will be collectively referred to as "terminals, etc.", and the above information A1 to C will be collectively referred to as "information, etc.".

[0041] A user of the terminal (e.g., a seller) operates the terminal to input information (e.g., information A1), and the terminal transmits the information to the server 7 (steps S10 and S11). The server 7 receives the information and performs a process to determine whether the information can be registered, and if it can be registered, stores the information in the database 71. On the other hand, if it cannot be registered, the server 7 does not store the information in the database 71. Thereafter, the server 7 transmits a result notification to the terminal that the information has been registered (e.g., information A1 has been stored in the database 71) or that the information has not been registered (step S21). When the server 7 has performed a process to store the information in the database 71, the server 7 performs a process to post the information in a predetermined format on a website operated by the server 7 (step S23). On the other hand, the terminal that has received a notification from the server 7 that the information has been registered performs a process to display a result that posting of the information will begin (step S12).

[0042] FIG. 4 is a flow diagram illustrating the process of introducing an expert.

[0043] The process of the server 7 when introducing an expert to a seller or a buyer will be described with reference to FIG.

[0044] When a seller (buyer) who wants to be introduced to an expert operates the seller terminal 2 (buyer terminal 3), the seller terminal 2 (buyer terminal 3) performs a process of sending an introduction request to the server 7 requesting that an expert be introduced (step S30). The server 7 that receives this introduction request performs a process of querying and extracting an expert desired by the seller from among experts registered in the database 71 (step S41). The server 7 performs a process of sending an acceptance request to the expert terminal 6 used by the extracted expert to inquire whether the expert can accept the job as the seller's expert (S42). If the expert that received this acceptance request is able to accept the job, the expert terminal 6 operates the expert terminal 6, and the expert terminal 6 performs a process of sending an acceptance of the job to the server 7 to the effect that the expert accepts the job (step S50). The server 7 that receives this acceptance request performs a process of sending an acceptance notice to the seller terminal 2 (buyer terminal 3) to the effect that the expert has accepted the job (step S43).

[0045] In this way, experts can be introduced to the seller (buyer) efficiently.

[0046] If there is no expert suitable for the seller's (buyer's) needs in the database 71, or if the expert declines to take on the job, a process may be performed to notify the seller terminal 2 (buyer terminal 3) that there is no expert desired by the seller (buyer) in the database 71. Alternatively, the administrator may find an expert himself and introduce the expert he found to the seller terminal 2 (buyer terminal 3) via the server 7.

[0047] FIG. 5 is a flow diagram illustrating the process for buying and selling.

[0048] 5, the process of buying and selling real estate via the server 7 will be described. Here, the case where a buyer (buyer's agent) wishes to purchase real estate from a seller by referring to the seller's information A1 or A2 listed in the database 71 will be described as an example.

[0049] A buyer (buyer's broker) who wishes to purchase real estate operates the buyer terminal 3 (buyer's broker terminal 5) to transmit a request for information A1 (information A2) to the server 7, indicating that he / she wishes to purchase the real estate related to information A1 (information A2) or that he / she has viewed information A1 (information A2) (step S60). When the server 7 receives this request, if there is only a seller, it transmits information A1 related to the buyer to the seller terminal 2 (step S71). Then, the seller terminal 2 receives information A1 (step S90). On the other hand, if the seller has a seller's broker, it transmits information A2 to both the seller terminal 2 and the seller's broker terminal 4 (step S71). Then, the seller terminal 2 and the seller's broker terminal 4 receive information A2 (steps S80 and S90).

[0050] In this way, when a seller has a seller's intermediary, if there is a request from the buyer or the buyer's intermediary, information A2 is notified to both the seller and the seller's intermediary, so the buyer's needs, etc. can be notified directly to the seller and the seller's intermediary without any time lag. As a result, it is possible to prevent the seller's intermediary from concealing or modifying the buyer's information or needs, etc., and the transparency of the transaction can be guaranteed.

[0051] When a seller who has decided to sell real estate based on this information A2 operates the seller terminal 2, the seller terminal 2 performs a process of transmitting a purchase acceptance to the server 7, which indicates that the buyer who requested the offer has agreed to purchase the seller's real estate (to sell the seller's real estate) (step S91). Although not shown in the figure, the seller's broker who has been commissioned by the seller may operate the seller's broker terminal 4, causing the seller terminal 2 to perform a process of transmitting the purchase acceptance to the server 7.

[0052] The server 7 that has received the purchase acceptance stores data indicating that the sales contract has been concluded in the database 71 so that the data can be viewed, and also transmits the data to the buyer terminal 3 (buyer's broker terminal 5) (step S72). The buyer terminal 3 (buyer's broker terminal 5) then receives the data (step S61).

[0053] In this embodiment, although not shown in the figures, by matching a seller and a buyer via the server 7, if the seller's intermediary (buyer's intermediary) does not pay the system usage fee to the administrator of the server 7 even though the seller's intermediary (buyer's intermediary) has received a contract fee from the seller (buyer), the server 7 can perform a process of sending a usage fee reminder to the seller's intermediary terminal 4 (buyer's intermediary terminal 5) to remind the seller to pay the system usage fee. In addition, during the reminder, the server 7 can perform a process of prohibiting the seller's intermediary terminal 4 (buyer's intermediary terminal 5) from using the server 7. If the reminder period exceeds a predetermined period, the server 7 can perform a process of locking the account of the seller's intermediary (buyer's intermediary) and notifying the seller (buyer) of the fact. Furthermore, it is possible to carry out a process to permanently prevent a seller's intermediary (buyer's intermediary) whose account has been locked from using the server 7, and as a relief measure for a seller's intermediary (buyer's intermediary) whose account has been locked, it is also possible to carry out a process to unlock the account of a seller's intermediary (buyer's intermediary) who meets certain conditions for resuming use of the server 7.

[0054] As explained above, in the buying and selling system 1, various pieces of information A21 to C are stored (posted) in the database 71 of the administrator's server 7, so that the seller and the seller's agent can easily and accurately grasp the needs of the buyer and the buyer's agent by browsing the various pieces of information in the database 71. Also, the buyer and the buyer's agent can easily and accurately grasp the desired real estate information by browsing the various pieces of information in the database 71. As a result, real estate buying and selling can be easily carried out smoothly and with high transparency.

[0055] In particular, in this embodiment, a program that assigns the same identifier to the same address, etc. is used to ensure that only one intermediary is involved in the same real estate, thereby preventing a situation in which multiple intermediaries are involved in the same real estate, and real estate transactions can be conducted more smoothly. Moreover, when a request is made by the buyer (buyer's intermediary), information A2 is sent to both the seller and the seller's intermediary, and when a real estate transaction is concluded, data indicating that a sales contract has been concluded is stored in database 71 and can be viewed, which prevents the intermediary from hiding information from the parties involved in the transaction (the intermediary cannot hide information from the parties involved in the transaction), thereby further improving the transparency of real estate transactions.

[0056] The present invention is not limited to the above-described embodiment, and appropriate modifications can be made without departing from the spirit and scope of the present invention.

[0057] For example, in this embodiment, information A1 includes information related to the seller (seller's name, address, etc.) and information related to the real estate the seller wants to sell (property type, address, size, value, etc.), but it may include only information related to the seller or only information related to the real estate the seller wants to sell. Similarly, information A2 may include only information related to the buyer or only information related to the real estate the buyer wants to buy.

[0058] In this embodiment, the identifier is assigned in an manner linked to an address, but it is also possible to assign an identifier linked to the "seller, seller's agent, and real estate (property)." In other words, it is important to prevent multiple agents from being mixed in relation to the same property.

[0059] In this embodiment, experts are introduced to the seller (buyer) via the server 7, but the seller (buyer) may also access the server 7 via the seller terminal 2 (buyer terminal 3) and inquire about experts stored in the database 71, thereby directly connecting with an expert.

[0060] In this embodiment, when a request for provision is made from the buyer terminal 3, a process is performed to notify both the seller terminal 2 and the seller's intermediary terminal 4 of the fact that this request for provision has been made. However, this is not limited to this, and it is also possible to perform a process to notify both the buyer terminal 3 and the buyer's intermediary terminal 5 of the fact that a request for provision is made from the seller terminal 2.

[0061] In this embodiment, real estate buying and selling is used as an example of the buying and selling system 1, but this is not limited to this, and the buying and selling system 1 may also be used to enter into a real estate rental contract, and even in this case, the same effects as those of this embodiment are achieved.

[0062] In this embodiment, real estate is taken as an example of a trading object of the trading system 1, but the trading object may be, for example, an item other than real estate, such as furniture, automobiles, daily necessities, etc. In short, there is no particular limitation as long as it is an item that can be a trading object.

[0063] <Configuration and Effects of the Embodiment> (Configuration 1) A buying and selling system that enables sellers and buyers to buy and sell items by connecting a seller terminal used by a seller, a buyer terminal used by a buyer, a seller-side broker terminal used by the seller's broker, a buyer-side broker terminal used by the buyer's broker, and a server managed by an administrator through a network, The server A means for receiving at least one of information related to the seller and information related to the seller's trading object (hereinafter referred to as information A1) from the seller terminal and storing it in a database; A means for receiving at least one of information related to the seller and information related to the subject of the seller's sale (hereinafter referred to as information A2) from the seller's intermediary terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the buyer's trading object (hereinafter referred to as information B1) from the buyer terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the subject of the buyer's sale (hereinafter referred to as information B2) from the buyer's broker terminal and storing it in a database; A means for providing information B1 stored in a database in response to a request for providing information B1 from a seller terminal; A means for providing information B2 stored in a database in response to a request for providing information B2 from a seller terminal; A means for providing information A1 stored in a database in response to a request for providing information A1 from a buyer terminal; A means for providing information A2 stored in a database in response to a request for providing information A2 from a buyer terminal; a means for notifying both the buyer terminal and the buyer's broker terminal of a request for provision of information B2 when the request for provision of information B2 is received from the seller terminal; a means for notifying both the seller terminal and the seller's intermediary terminal of a request for provision of the information A2 when the request for provision of the information A2 is received from the buyer terminal; A trading system comprising: With this configuration, it is possible to easily carry out smooth and highly transparent real estate transactions.

[0064] (Configuration 2) A sales object support system that enables sellers and buyers to buy and sell sales objects by connecting a seller terminal used by a seller, a buyer terminal used by a buyer, a seller side broker terminal used by a seller's broker, a buyer side broker terminal used by a buyer's broker, an expert terminal used by a sales expert, and a server managed by an administrator through a network, The server A means for receiving at least one of information related to the seller and information related to the seller's trading object (hereinafter referred to as information A1) from the seller terminal and storing it in a database; A means for receiving at least one of information related to the seller and information related to the subject of the seller's sale (hereinafter referred to as information A2) from the seller's intermediary terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the buyer's trading object (hereinafter referred to as information B1) from the buyer terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the subject of the buyer's sale (hereinafter referred to as information B2) from the buyer's broker terminal and storing it in a database; A means for receiving information related to the expert (hereinafter referred to as information C) from the expert terminal and storing it in a database; A means for providing information B1 stored in a database in response to a request for providing information B1 from a seller terminal; A means for providing information B2 stored in a database in response to a request for providing information B2 from a seller terminal; A means for providing information A1 stored in a database in response to a request for providing information A1 from a buyer terminal; A means for providing information A2 stored in a database in response to a request for providing information A2 from a buyer terminal; a means for notifying both the buyer terminal and the buyer's broker terminal of a request for provision of information B2 when the request for provision of information B2 is received from the seller terminal; a means for notifying both the seller terminal and the seller's intermediary terminal of a request for provision of the information A2 when the request for provision of the information A2 is received from the buyer terminal; A means for providing information C stored in a database in response to an introduction request from a seller terminal or a buyer terminal; A trading system comprising: With this configuration, it is possible to easily carry out smooth and highly transparent real estate transactions, and it is also possible to efficiently introduce experts to sellers and buyers.

[0065] (Configuration 3) A trading system according to the first or second configuration, The server A means for assigning a unique identifier to information related to the seller's trading object in the information A2; A means for prohibiting storage of the same identifier in the database; A trading system that has With this configuration, it is possible to ensure that only one intermediary is involved in the same real estate.

[0066] The system, program, and the like of the present invention can be modified in various ways without departing from the spirit and scope of the present invention. Furthermore, the order of control and the like can be changed as appropriate as long as a desired effect is achieved.

[0067] <Definition, etc.> An example of the "terminal" in the present invention is a personal computer. In other words, the "terminal" may be a smartphone, a tablet, etc. In short, any device that can be operated from outside and can connect to the Internet may be used. An example of the "object of sale" in the present invention is real estate. In other words, it may be an item other than real estate. In short, the "object of sale" is not limited to real estate, but may be anything that can be bought and sold. [Explanation of symbols]

[0068] 1. Trading system 2. Seller terminal 3. Buyer terminal 4. Seller's intermediary terminal 5 Buyer's broker terminal 6 Expert terminal 7 Server 71 Database

Claims

1. A buying and selling system that enables sellers and buyers to buy and sell items by connecting a seller terminal used by a seller, a buyer terminal used by a buyer, a seller-side broker terminal used by the seller's broker, a buyer-side broker terminal used by the buyer's broker, and a server managed by an administrator through a network, The server A means for receiving at least one of information related to the seller and information related to the seller's trading object (hereinafter referred to as information A1) from the seller terminal and storing it in a database; A means for receiving at least one of information related to the seller and information related to the object of the seller's sale (hereinafter referred to as information A2) from the seller's intermediary terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the object of the buyer's sale (hereinafter referred to as information B1) from the buyer terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the object of the buyer's sale (hereinafter referred to as information B2) from the buyer's broker terminal and storing it in a database; A means for providing information B1 stored in a database in response to a request for providing information B1 from a seller terminal; A means for providing information B2 stored in a database in response to a request for providing information B2 from a seller terminal; A means for providing information A1 stored in a database in response to a request for providing information A1 from a buyer terminal; A means for providing information A2 stored in a database in response to a request for providing information A2 from a buyer terminal; a means for notifying both the seller terminal and the seller's intermediary terminal of a request for provision of information A2 when the request for provision of information A2 is received from the buyer terminal; A trading system comprising:

2. A sales object support system that enables sellers and buyers to buy and sell sales objects by connecting a seller terminal used by a seller, a buyer terminal used by a buyer, a seller side broker terminal used by a seller's broker, a buyer side broker terminal used by a buyer's broker, an expert terminal used by a sales expert, and a server managed by an administrator through a network, The server A means for receiving at least one of information related to the seller and information related to the seller's trading object (hereinafter referred to as information A1) from the seller terminal and storing it in a database; A means for receiving at least one of information related to the seller and information related to the object of the seller's sale (hereinafter referred to as information A2) from the seller's intermediary terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the object of the buyer's sale (hereinafter referred to as information B1) from the buyer terminal and storing it in a database; A means for receiving at least one of information related to the buyer and information related to the object of the buyer's sale (hereinafter referred to as information B2) from the buyer's broker terminal and storing it in a database; A means for receiving information related to the expert (hereinafter referred to as information C) from the expert terminal and storing it in a database; A means for providing information B1 stored in a database in response to a request for providing information B1 from a seller terminal; A means for providing information B2 stored in a database in response to a request for providing information B2 from a seller terminal; A means for providing information A1 stored in a database in response to a request for providing information A1 from a buyer terminal; A means for providing information A2 stored in a database in response to a request for providing information A2 from a buyer terminal; a means for notifying both the seller terminal and the seller's intermediary terminal of a request for provision of information A2 when the request for provision of information A2 is received from the buyer terminal; A means for providing information C stored in a database in response to an introduction request from a seller terminal or a buyer terminal; A trading system comprising:

3. The server A means for assigning a unique identifier to information related to the seller's trading object in the information A2; A means for prohibiting storage of the same identifier in the database; 3. The buying and selling system according to claim 1, further comprising:

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