Transaction support system and transaction support method

The transaction support system facilitates efficient recycling transactions between businesses and recycling companies by matching conditions and ensuring compliance, addressing the challenges of PET bottle recycling through a system that includes a determination device for assessing bottle suitability.

JP2026121178APending Publication Date: 2026-07-23HITACHI SOFTWARE ENG
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
HITACHI SOFTWARE ENG
Filing Date
2025-01-10
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Businesses face difficulties in recycling PET bottles due to the lack of intermediary organizations and systems for processing these materials, leading to challenges in finding suitable recycling companies and potential loss of business opportunities, as well as uncertainties regarding the domestic recycling of PET bottles.

Method used

A transaction support system and method that includes a storage device for client and processor information, a computing device for matching purchase and sales conditions, and a negotiation support unit to facilitate transactions between businesses and recycling companies, utilizing a determination device to assess PET bottle suitability for horizontal recycling.

Benefits of technology

The system supports efficient transactions between businesses and recycling companies, ensuring compliance with recycling conditions and enabling effective recycling of PET bottles while verifying domestic recycling processes.

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Abstract

Supporting transactions between parties involved in the recycling of plastic bottles. [Solution] Transaction support system 1 stores client information, which is information about the client or the client's PET bottles, for each of the multiple clients who request the disposal of PET bottles, and stores processor information, which is information about the processor or the PET bottles to be processed, for each of the multiple processors who process the PET bottles, and when a client is identified from the client information relating to each client that has information that satisfies the conditions indicated by the processor condition information, which is information about the conditions required by the processor, the client information relating to that client is output, and when a processor is identified from the processor information relating to each processor that has information that satisfies the conditions indicated by the client condition information, the processor information relating to that processor is output.
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Description

Technical Field

[0001] The present invention relates to a transaction support system and a transaction support method.

Background Art

[0002] For the purpose of reducing environmental impact and the like, recycling of various resources is widely carried out in society. As a technology for managing recycled resources, for example, in Patent Document 1, for each trading company that is a selling destination of goods related to recycled resources, there is a unit price management unit that manages the unit price of the goods to be traded, an inventory management unit that manages the number of containers storing the goods, and calculates the selling amount of the goods based on the weight of the goods stored in the container and the unit price of the goods, and calculates the trading company of the goods and the selling amount of the goods so that the inventory quantity of the container by the inventory management unit does not exceed a predetermined value. A recycled resource management system having a shipping processing unit is disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, PET bottles are one of the most widely used resources as recyclable resources. For example, a mechanism has been established in which PET bottles generated at home are collected by local governments or the like and provided to recycling companies through a predetermined intermediary organization. As a result, horizontal recycling (recycling that uses the same type of product before and after processing) can be realized.

[0005] On the other hand, the situation is different for PET bottles generated by businesses and other organizations. There are no intermediary organizations like those mentioned above, and no system has been established to allow businesses to provide their generated PET bottles to recycling companies. As a result, businesses often have difficulty finding suitable recycling companies and are forced to process their PET bottles into other products. This also represents a loss of business opportunity for recycling companies. Furthermore, even when local governments collect the bottles, it can be difficult to verify whether horizontal recycling is actually taking place domestically (for example, there is a risk that the bottles may be exported overseas or used for recycling into different plastic products).

[0006] This invention has been made in view of these circumstances, and its purpose is to provide a transaction support system and a transaction support method that can support transactions between parties for the recycling of PET bottles. [Means for solving the problem]

[0007] One of the present inventions for solving the aforementioned problems is a transaction support system comprising: a storage device that stores client information, which is information about the client or the PET bottles that are the subject of the client's request, for each of a plurality of clients that request the processing of PET bottles; a storage device that stores processor information, which is information about the processor or the PET bottles that are the subject of the processing, for each of a plurality of processors that process PET bottles; and a computing device that performs a purchase condition matching process, which outputs the client information related to the identified client information to an output device when it identifies client information that has information that satisfies the conditions indicated by processor condition information, which is information about the conditions required by the processor, from among the client information relating to each of the clients. [Effects of the Invention]

[0008] According to the present invention, it is possible to support transactions between parties for the recycling of PET bottles.

[0009] Other configurations and effects will be clarified by the following description of the embodiments. [Brief explanation of the drawing]

[0010] [Figure 1] This figure shows an example of the configuration of the transaction support system according to this embodiment. [Figure 2] This figure shows an example of the hardware and functional components of a trading support device. [Figure 3] This flowchart illustrates an example of a transaction support process performed within the transaction support system. [Figure 4] This is a flowchart illustrating the details of the seller attribute information registration process. [Figure 5] This figure shows an example of seller attribute information created through the seller attribute information registration process. [Figure 6] This is a flowchart illustrating the details of the buyer attribute information registration process. [Figure 7] This figure shows an example of buyer attribute information created through the buyer attribute information registration process. [Figure 8] This is a flowchart illustrating the details of the seller transaction terms registration process. [Figure 9] This figure shows an example of the seller transaction conditions registration screen displayed during the seller transaction conditions registration process. [Figure 10] This figure shows an example of seller transaction conditions information created through the seller transaction conditions information registration process. [Figure 11] This is a flowchart illustrating the details of the buyer transaction conditions information registration process. [Figure 12] This figure shows an example of the buyer transaction conditions registration screen displayed during the buyer transaction conditions registration process. [Figure 13] This figure shows an example of buyer transaction conditions information created through the buyer transaction conditions information registration process. [Figure 14] This is a diagram showing an example of data for each item registered by the seller attribute information registration process, the buyer attribute information registration process, the seller transaction condition information registration process, and the buyer transaction condition information registration process. [Figure 15] This is a flowchart explaining the details of the seller transaction process. [Figure 16] This is a diagram showing an example of the product list screen displayed in the seller transaction process. [Figure 17] This is a diagram showing an example of the purchaser information screen displayed in the seller transaction process. [Figure 18] This is a diagram showing an example of the seller negotiation screen displayed in the seller transaction process. [Figure 19] This is a diagram showing an example of the seller sales performance information created by the seller transaction process. [Figure 20] This is a diagram showing an example of the buyer purchase performance information created by the seller transaction process. [Figure 21] This is a flowchart explaining the details of the buyer transaction process. [Figure 22] This is a diagram showing an example of the producer information screen displayed in the buyer transaction process. [Figure 23] This is a diagram showing an example of the first product screen displayed in the buyer transaction process. [Figure 24] This is a diagram showing an example of the bidding screen displayed in the buyer transaction process. [Figure 25] This is a diagram showing an example of the second product screen displayed in the buyer transaction process. [Figure 26] This is a diagram showing an example of the buyer negotiation screen displayed in the buyer transaction process. [Figure 27] This is a flowchart explaining the details of the counterparty proposal process. [Figure 28] This is a diagram showing an example of the list screen of potential purchasers displayed in the counterparty proposal process. [Figure 29] This is a diagram showing an example of the specified condition display column on the list screen of potential purchasers. [Figure 30]This figure shows an example of the list of potential buyers displayed during the trading partner proposal process. [Figure 31] This is a flowchart illustrating the details of the evaluation score setting process. [Figure 32] This figure shows an example of the evaluation score input screen displayed during the evaluation score setting process. [Modes for carrying out the invention]

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0012] The transaction support system 1 of this embodiment is an information processing system that supports the matching of recycling between multiple clients (in this embodiment, these are businesses, but this does not preclude the inclusion of individuals) who wish to request the recycling of PET bottles (especially the reprocessing of PET bottles such as horizontal recycling), and multiple processors (in this embodiment, these are businesses, but this does not preclude the inclusion of individuals) who wish to carry out the recycling of PET bottles upon request from the clients, so that each client and processor meets the conditions desired by each party.

[0013] There are various forms of transactions (contracts) that facilitate the request and acceptance of recycling, but in this embodiment, a sale will be conducted in which the requester sells the PET bottles to be recycled to the processor. Hereinafter, the requester will be referred to as the seller, and the processor as the buyer.

[0014] Figure 1 shows an example of the configuration of the transaction support system 1 according to this embodiment. The transaction support system 1 is composed of a seller terminal 10 used by each seller, a buyer terminal 20 used by each buyer, a transaction support device 30 that supports buying and selling, and a determination device 40 that performs various measurements or calculations regarding the condition of PET bottles.

[0015] The determination device 40 calculates or measures the values ​​of the state parameters of the PET bottles that the client requests to be processed.

[0016] The state parameter is a PET bottle state parameter that represents the degree to which the PET bottle is suitable for horizontal recycling. In this embodiment, the state parameter is the purity and weight of the PET bottle. In this embodiment, purity refers to the percentage of PET bottles among the group of PET bottles held by the client that have unnecessary parts (e.g., caps, labels) attached that are unsuitable for recycling. The determination device 40 is, for example, an image analysis device that analyzes an image of the PET bottle to estimate the state of the PET bottle, a weighing scale that measures the weight of the PET bottle, or an optical analysis device that determines the state of the PET bottle by measuring its optical properties.

[0017] The seller terminal 10, the buyer terminal 20, the transaction support device 30, and the determination device 40 are connected by a wired or wireless communication network 5, such as the Internet, LAN (Local Area Network), WAN (Wide Area Network), or a dedicated line.

[0018] Figure 2 shows the hardware and functional components of the trading support device 30. This is a diagram showing an example.

[0019] The trading support device 30 comprises a computing device 31 such as a CPU (Central Processing Unit), a storage device 32 such as RAM (Random Access Memory), ROM (Read Only Memory), HDD (Hard Disk Drive), or SSD (Solid State Drive), an input device 33 consisting of a keyboard, mouse, touch panel, etc., an output device 34 for screen display consisting of a monitor (display), etc., and a communication device 35 consisting of a NIC (Network Interface Card), wireless communication module, USB (Universal Serial Interface) module, or serial communication module, etc.

[0020] Furthermore, the transaction support device 30 has the following functional units: an automatic determination unit 301, a transaction information registration unit 302, a matching unit 303, a negotiation support unit 304, and an evaluation score calculation unit 305.

[0021] The automatic determination unit 301 has the determination device 40 measure the value of the state parameter of the PET bottle that the client requests to be processed, and stores the measured value in the storage device 32.

[0022] The transaction information registration unit 302 stores client information (seller attribute information 321, seller transaction conditions information 322, and seller sales performance information 323) and processor information (buyer attribute information 324, buyer transaction conditions information 325, and buyer purchase performance information 326) in the storage device 32.

[0023] Seller attribute information 321 contains information about the attributes of each prospective seller (for example, the location of the prospective seller, whether or not they have various licenses). Seller transaction conditions information 322 (client conditions information) contains information about the conditions that each prospective seller requires from each prospective buyer when buying or selling PET bottles (conditions regarding prospective buyers or PET bottles to be processed). Seller sales history information 323 contains information about the transaction history of each prospective seller in which they have sold PET bottles.

[0024] Buyer attribute information 324 contains information about the attributes of each prospective buyer (for example, the location of the prospective seller and whether they have various licenses). Buyer transaction conditions information 325 (processor conditions information) contains information about the conditions that each prospective buyer requires from each prospective seller when buying and selling PET bottles (conditions regarding the prospective seller or the PET bottles held by the prospective seller). Buyer purchase history information 326 contains information about the transaction history of each prospective buyer who has purchased PET bottles.

[0025] The matching unit 303 includes a purchase condition matching unit 306 and a sales condition matching unit 307.

[0026] The purchase condition matching unit 306 identifies a seller attribute information 321 from among the requester information (seller attribute information 321) related to each requester (seller), which contains information that satisfies the conditions indicated by the processor condition information (buyer transaction condition information 325), which is information about the conditions requested by the processor (buyer), and outputs the information of the requester (seller) related to the identified seller attribute information 321 to the output device 34.

[0027] On the other hand, when the sales condition matching unit 307 identifies a processor (seller attribute information 321) that has information that satisfies the conditions indicated by the client condition information (seller transaction condition information 322), which is information about the conditions requested by the client (seller), it outputs the information of the processor (seller attribute information 321) related to the identified processor (seller attribute information 321) to the output device 34.

[0028] Next, the Negotiation Support Unit 304 assists in the negotiations necessary for the transaction to be concluded between the client (seller) and the processor (buyer). For example, when the Purchase Condition Matching Unit 306 identifies the client information, the Negotiation Support Unit 304 receives input from the client (seller) confirming the processing request.

[0029] The evaluation score calculation unit 305 calculates an evaluation score, which is the evaluation value of the transaction from the processor (buyer) to the client (seller).

[0030] The functions of each functional unit of the trading support device 30 are realized by the hardware of the trading support device 30, or by the arithmetic unit 31 of the trading support device 30 reading and executing programs stored in the storage device 32. These programs are stored in storage devices such as secondary storage devices, non-volatile semiconductor memory, hard disk drives, SSDs, or recording media readable by each device, such as IC cards, SD cards, and DVDs. Each device may be realized in whole or in part using virtual information processing resources provided using virtualization technology, process space isolation technology, etc., such as virtual servers provided by a cloud system. Furthermore, all or part of the functions provided by these devices may be realized by services provided by the cloud system via APIs (Application Programming Interfaces), etc. Next, we will explain the processes performed in the transaction support system 1.

[0031] Figure 3 is a flowchart illustrating an example of a transaction support process performed in the transaction support system 1.

[0032] Transaction support system 1 executes seller attribute information registration process s1 to register the attribute information of each prospective seller. Transaction support system 1 also executes buyer attribute information registration process s2 to register the attribute information of each prospective buyer. Transaction support system 1 also executes seller transaction condition information registration process s3 to register the information of the conditions that prospective sellers request from prospective buyers. Transaction support system 1 also executes buyer transaction condition information registration process s4 to register the information of the conditions that prospective buyers request from prospective sellers. The execution order of the above processes does not matter, and each of the above processes may be executed multiple times.

[0033] Subsequently, the transaction support system 1 executes the seller transaction process s5, which is the process by which a seller identifies a buyer who meets the conditions and completes the transaction. The transaction support system 1 also executes the buyer transaction process s6, which is the process by which a buyer identifies a seller who meets the conditions and completes the transaction. The order in which these processes are executed does not matter, and each of these processes may be executed multiple times.

[0034] Next, we will explain the details of each of the above processes.

[0035] <Seller attribute information registration process> Figure 4 is a flowchart illustrating the details of the seller attribute information registration process s1.

[0036] The transaction support device 30 displays a predetermined screen on the seller terminal 10 screen for accepting registration of the seller's attributes (s11), and accepts attribute information input from the seller terminal 10 (s12).

[0037] Then, the transaction support device 30 registers the input attribute information into the seller attribute information 321 (s13).

[0038] (Seller attribute information) Figure 5 shows an example of seller attribute information 321 created by the seller attribute information registration process s1. The seller attribute information 321 includes the ID 501 of each prospective seller, the location 502 of the prospective seller, authorization information 503 which is information about the authorizations the prospective seller has received, authorization information 504 which is information indicating whether the prospective seller has received the prescribed authentication, and overseas transaction permission 505 which is information indicating whether the prospective seller allows overseas transactions (transactions with overseas prospective buyers). Note that the attributes of prospective sellers shown here are just examples, and other types of attribute information may be set.

[0039] <Buyer attribute information registration process> Figure 6 is a flowchart illustrating the details of the buyer attribute information registration process s2.

[0040] The transaction support device 30 displays a predetermined screen for accepting registration of the buyer's attributes on the screen of the buyer's terminal 20 (s21), and accepts attribute information input from the buyer's terminal 20 (buyer) (s22).

[0041] Then, the transaction support device 30 registers the input attribute information in the buyer attribute information 324 (s23).

[0042] (Buyer attribute information) Figure 7 shows an example of buyer attribute information 324 created by the buyer attribute information registration process s2. The buyer attribute information 324 includes the ID 701 of each prospective buyer, the location 702 of the prospective buyer, authorization information 703 which is information about the authorizations the prospective buyer has received, authentication information 704 which is information indicating whether the prospective buyer has received the prescribed authentication, and overseas transaction feasibility 705 which is information indicating whether the prospective buyer allows overseas transactions (transactions with overseas prospective sellers). Note that the attributes of prospective buyers shown here are just examples, and other types of attribute information may be set.

[0043] <Seller's Transaction Conditions Information Registration Process> Figure 8 is a flowchart illustrating the details of the seller transaction conditions information registration process s3.

[0044] The transaction support device 30 displays a seller transaction conditions registration screen (described later) on the screen of the seller terminal 10, which accepts registration of various conditions related to the information of PET bottles that the seller wishes to sell, which the seller has accumulated (s31), and accepts registration requests for various conditions from the seller terminal 10 (s32).

[0045] If the registration request entered by the seller is a registration request for the purity and quantity of PET bottles (s33:YES), the transaction support device 30 executes the process in s34. If the entered registration request is neither a registration request for the purity nor a registration request for the quantity of PET bottles (s33:NO), the transaction support device 30 executes the process in s37.

[0046] In step s34, the transaction support device 30 determines whether or not to automatically register the purity and quantity of the PET bottles. For example, the transaction support device 30 queries whether or not the determination device 40 is connected, or whether or not it is possible to register the information of the PET bottles with the determination device 40.

[0047] If the purity and quantity of the PET bottles are to be automatically registered (s34:YES), the transaction support device 30 executes the process in s35. If the purity and quantity of the PET bottles are not to be automatically registered (s34:NO), the transaction support device 30 executes the process in s36.

[0048] In step s35, the transaction support device 30 automatically registers information on the purity and quantity of the PET bottles.

[0049] For example, if the determination device 40 is an image analysis device, the determination device 40 receives a specified image of a PET bottle held by the seller from the seller's terminal 10, and analyzes the specified image to calculate the purity of the PET bottle and the amount of contents (liquid, etc.) present inside the PET bottle. The determination device 40 transmits the calculated purity and amount to the transaction support device 30. After that, the process in s38 is performed.

[0050] Furthermore, for example, if the determination device 40 is an optical analyzer or a measuring device such as a weighing scale, the determination device 40 with the PET bottle installed measures the purity and weight of the PET bottle. The determination device 40 transmits the calculated purity and weight to the transaction support device 30. After that, the process in s38 is performed.

[0051] In s36, the transaction support device 30 receives input from the seller's terminal 10 regarding the purity and quantity of the PET bottles estimated or measured by the seller. Subsequently, the processing in s38 is performed.

[0052] In s37, the transaction support device 30 receives data input for the items indicated by the registration request from the seller terminal 10 (seller). After that, the processing in s38 is performed.

[0053] In s38, the transaction support device 30 registers the information entered in s35, s36, and s37 into the seller transaction conditions information 322.

[0054] (Seller's transaction conditions registration screen) Figure 9 shows an example of the seller transaction conditions registration screen 900 displayed in the seller transaction conditions information registration process s3. The seller transaction conditions registration screen 900 has specification fields 901 that accept input values ​​for each item such as the purity, quantity, and location of the PET bottle, and a registration field 902 for registering the entered values ​​in the seller transaction conditions information 322.

[0055] (Seller's terms and conditions information) Figure 10 shows an example of seller transaction conditions information 322 created by the seller transaction conditions information registration process s3. Seller transaction conditions information 322 includes the following information: seller ID 1001, which is the ID of each prospective seller; purity 1002 of the PET bottles that each prospective seller wishes to sell; quantity 1003 of the PET bottles that each prospective seller wishes to sell; selling price 1004 of the PET bottles that each prospective seller wishes to sell; number of past transactions required of prospective buyers 1005; average past purchase price required of prospective buyers 1006; authorization status 1007, which indicates whether or not the prospective buyer has obtained a prescribed authorization; certification status 1008, which indicates whether or not the prospective buyer has obtained a prescribed certification; and overseas transaction status 1009, which indicates whether or not transactions with overseas prospective buyers are permitted. Hereafter, the conditions of authorization status 1007, certification status 1008, and overseas transaction status 1009 will be referred to as (the prospective seller's) environmental contribution record.

[0056] The conditions shown here are examples, and other arbitrary conditions that the seller may require in the transaction may be included. For example, a condition may be included as to whether or not negotiation (confirmation) with the prospective buyer is required before the transaction is completed (hereinafter referred to as "pre-completion confirmation requirement"). In this embodiment, the seller transaction conditions information 322 includes this pre-completion confirmation requirement. In addition, in this embodiment, the seller transaction conditions information 322 further includes an image of the PET bottle that the seller wishes to sell.

[0057] <Buyer transaction terms information registration process> Next, Figure 11 is a flowchart illustrating the details of the buyer transaction conditions information registration process s4.

[0058] The transaction support device 30 displays a buyer transaction conditions registration screen (described later) on the buyer terminal 20, which accepts registration of various conditions related to the information of the PET bottles that the buyer wishes to purchase (s41).

[0059] Then, the transaction support device 30 receives input of each condition from the prospective buyer terminal 20 (prospective buyer) (s42). The transaction support device 30 registers the information entered in s42 into the buyer transaction conditions information 325 (s43).

[0060] (Buyer transaction conditions registration screen) Figure 12 shows an example of the buyer transaction conditions registration screen 1200 displayed in the buyer transaction conditions information registration process s4. The buyer transaction conditions registration screen 1200 has a designation field 1201 for accepting input of various conditions such as the purity, quantity, and location of PET bottles, and a registration field 1202 for registering each of the entered conditions in the buyer transaction conditions information 325.

[0061] (Buyer's terms and conditions information) Figure 13 shows an example of buyer transaction conditions information 325 created by the buyer transaction conditions information registration process s4. The buyer transaction conditions information 325 includes the following information: buyer ID 1301, which is the ID of each prospective buyer; purity of PET bottles that each prospective buyer wishes to purchase 1302; quantity of PET bottles that each prospective buyer wishes to purchase 1303; purchase price 1304 for PET bottles that each prospective buyer wishes to purchase; location 1305, which is required of the prospective seller; authorization status 1306, which indicates whether or not the prospective seller has the required authorization; certification status 1307, which indicates whether or not the prospective seller has the required certification; and overseas transaction status 1308, which indicates whether or not transactions with overseas prospective sellers are permitted. Hereafter, the conditions of authorization status 1306, certification status 1307, and overseas transaction status 1308 will be referred to as (the prospective buyer's) environmental contribution record.

[0062] The conditions shown herein are examples only, and may include other arbitrary conditions that the prospective buyer may require in the transaction. In this embodiment, the buyer transaction conditions information 325 further includes the minimum evaluation score that the prospective buyer may require from the seller.

[0063] Here, Figure 14 shows an example of the data for each item registered by the seller attribute information registration process s1, buyer attribute information registration process s2, seller transaction conditions information registration process s3, and buyer transaction conditions information registration process s4.

[0064] First, the attribute information of the seller and the buyer includes, for example, the location specified by the prefecture (1401), whether or not they have a license specified by the license number (1402), whether or not they have a certification specified by the certification name (e.g., ISO14001) (1403), and whether or not they are willing to trade with overseas entities (1404).

[0065] Furthermore, the seller's transaction conditions include, for example, purchase history 1405, which is specified by the minimum number of transactions and the minimum average price; whether or not the seller has a license 1406, which is specified by the license number; whether or not the seller has a license 1407, which is specified by the certification name; and whether or not transactions with overseas prospective buyers 1408.

[0066] Furthermore, the buyer's transaction conditions include, for example, the seller's location as specified by the prefecture 1409, the minimum evaluation score required of the seller as described below 1410, whether or not there is a license as specified by the license number 1411, whether or not there is a license as specified by the certification name 1412, and whether or not transactions with overseas buyers are permitted 1413. The buyer's transaction conditions also include, for example, whether or not pre-transaction verification is required 1414.

[0067] <Seller transaction processing> Next, Figure 15 is a flowchart illustrating the details of the seller transaction process s5.

[0068] The transaction support device 30 displays a listing screen 1600 on the seller's terminal 10, which displays information about the PET bottles that the seller wishes to sell (s51).

[0069] The seller's terminal 10 accepts the seller's selection of the plastic bottles to be sold via the listing screen 1600 (s52:NO).

[0070] When the transaction support device 30 receives a selection of PET bottles to be sold (hereinafter referred to as "selected products") (s52:YES), it executes the following process.

[0071] In other words, the transaction support device 30 executes the transaction partner proposal process s8, described later, to request proposals from potential buyers (available buyers) who meet the seller's conditions, and displays a list of available buyers screen 2800, which proposes buyers for the selected product, on the seller's terminal 10.

[0072] The transaction support device 30 then accepts a request from the seller to confirm the attribute information of any of the potential buyers via the list of potential buyers screen 2800 (specifically, the seller accepts a request from the seller to specify one of the attribute information specification fields 2805 on the list of potential buyers screen 2800, which will be described later) (s54).

[0073] If the system accepts a request to verify the attribute information of a potential buyer (s54:YES), the transaction support device 30 displays a buyer information screen (described later) showing the attribute information of the specified potential buyer on the screen of the seller's terminal 10 (s55). After that, the process in s56 is executed.

[0074] On the other hand, if the seller does not specify that the attribute information of the potential buyer be verified (s54: NO), the transaction support device 30 executes the process from s56 onwards.

[0075] In other words, the transaction support device 30 accepts the seller's designation for negotiation with one of the potential buyers via the potential buyer list screen 2800 (specifically, the seller accepts the designation of one of the negotiation designation fields 2806, described later, on the potential buyer list screen 2800) (s56).

[0076] If the system accepts a request to negotiate with a potential buyer (s56:YES), the transaction support device 30 displays a seller negotiation screen 1800 for negotiating or confirming the transaction with the designated potential buyer on the screens of the seller's terminal 10 and the potential buyer's terminal 20, respectively (s57). Subsequently, the process in s58 is carried out.

[0077] On the other hand, if the designation for negotiations with a potential buyer is not accepted (s56:NO), the transaction support device 30 executes the following processes from s58 onwards.

[0078] In other words, the transaction support device 30 accepts the seller's designation for a buy-and-sell transaction of PET bottles with any of the available buyers via the list of available buyers screen 2800 (specifically, the seller accepts the designation of any of the bid designation fields 2807 described later on the list of available buyers screen 2800) (s58).

[0079] If the system does not accept the designation of a buy-and-sell transaction for PET bottles with a potential buyer (s58: NO), the transaction support device 30 repeats the process from s56 onwards. On the other hand, if the system accepts the designation of a buy-and-sell transaction for PET bottles with a potential buyer (s58: YES), the transaction support device 30 registers information related to that transaction in the seller sales performance information 323 and the buyer purchase performance information 326 (s59).

[0080] This concludes seller transaction processing s5.

[0081] (Listing screen) Figure 16 shows an example of the listing screen 1600 displayed in the seller transaction processing s5. The listing screen 1600 displays the image 1601, purity 1602, quantity 1603, and selling price 1604 for each PET bottle registered in the seller transaction condition information 322.

[0082] (Purchaser information screen) Figure 17 shows an example of the buyer information screen 1700 displayed in the seller transaction processing s5. The buyer information screen 1700 displays the location 1701 of the potential buyer designated by the seller, information on environmental contributions 1703 (certification, authorization, presence of overseas transactions, etc.), and purchase history 1704 (total amount of PET bottles purchased to date, total purchase amount, and average purchase price, etc.), which are registered in the buyer attribute information 324. The buyer information screen 1700 also displays the transaction history 1705 of the potential buyer designated by the seller, which are registered in the buyer purchase history information 326.

[0083] (Seller negotiation screen) Figure 18 shows an example of the seller negotiation screen 1800 displayed in the seller transaction processing s5. The seller negotiation screen 1800 includes message display fields 1801, 1802, and 1803 that display messages sent and received between the seller and the potential buyer, a message input field 1804 that accepts messages to be sent by the seller to the potential buyer, and a message sending field 1805 that sends the message entered in the message input field 1804 to the potential buyer's terminal.

[0084] (Seller's sales performance information) Figure 19 shows an example of seller sales performance information 323 created by the seller transaction processing s5. Seller sales performance information 323 has a record for each completed transaction, and specifically contains the following information: seller ID 1901, which is the ID of each prospective seller; purity 1902 of the PET bottles sold by each prospective seller; quantity 1903 of the PET bottles sold by each prospective seller; price 1904 of the PET bottles sold by each prospective seller; and evaluation score 1905 obtained by each prospective seller.

[0085] (Buyer purchase history information) Figure 20 shows an example of buyer purchase history information 326 created by the seller transaction processing s5. The buyer purchase history information 326 has a record for each completed transaction, and specifically contains information such as the buyer ID 2001, which is the ID of each prospective buyer; the purity 2002 of the PET bottles purchased by each prospective buyer; the quantity 2003 of the PET bottles purchased by each prospective buyer; and the price 2004 of the PET bottles purchased by each prospective buyer.

[0086] <Buyer transaction processing> Figure 21 is a flowchart illustrating the details of the buyer transaction process s6.

[0087] The transaction support device 30 executes the transaction partner proposal process s8, described later, to request the buyer terminal 20 to propose sellers (available sellers) that meet the buyer's conditions, and displays the available seller list screen 3000 (product list screen), described later, which displays information on PET bottles from sellers (available sellers) who wish to sell under conditions that meet the buyer's conditions.

[0088] The transaction support device 30 accepts the selection of a seller whose attribute information to be displayed from a prospective buyer via the seller list screen 3000 (s62).

[0089] If the selection of a seller has been accepted (specifically, if the buyer has specified one of the attribute information fields 3007 on the seller list screen 3000) (s62:YES), the seller information screen 2200, which displays the attribute information of the seller, is displayed on the buyer's terminal 20 screen (s63). After that, the process in s64 is performed.

[0090] In s64, the prospective buyer terminal 20 continues to display the list of sellers screen 3000 and accepts the selection of PET bottles that the prospective buyer is considering purchasing (s64:NO).

[0091] When the transaction support device 30 receives a selection of a PET bottle to be considered for purchase (hereinafter referred to as the selected product) (s64:YES), it executes the following processes from s65 onwards.

[0092] In other words, the transaction support device 30 determines whether or not pre-transaction verification is required as a condition for the seller of the selected product (s65). If pre-transaction verification is required (s65:YES), the transaction support device 30 executes the process in s66; if pre-transaction verification is not required (s65:NO), the transaction support device 30 executes the process in s72.

[0093] In step s66, the transaction support device 30 displays a first product screen 2300 (described later) on the prospective buyer terminal 20, which displays information about the selected product and allows the buyer to confirm the seller and finalize the purchase.

[0094] Then, if the transaction support device 30 receives a request from a prospective buyer via the first product screen 2300 to confirm the identity of a seller (specifically, the request is received from the prospective buyer to confirm the identity of the seller in the negotiation designation field 2303 of the first product screen 2300, as described later) (s67:YES), it displays a buyer negotiation screen 2600 for confirming the identity of the seller on the screens of the prospective buyer terminal 20 and the seller's prospective seller terminal 10, respectively (s68). After that, the process in s69 is carried out.

[0095] In s69, the transaction support device 30 continues to display the first product screen 2300 and accepts a designation from the prospective buyer for the sale of PET bottles (specifically, it accepts the designation in the bid designation field 2304 on the first product screen 2300 from the prospective buyer) (s69: NO). If the designation for the sale of PET bottles is accepted (s69: YES), the transaction support device 30 executes the process in s70.

[0096] In step s70, the transaction support device 30 displays a bidding screen 2400 on the screen of the prospective buyer's terminal 20, which accepts the specific purchase price of the selected product from the prospective buyer. The transaction support device 30 then transmits the purchase price entered by the prospective buyer to the seller's terminal 10 of the seller.

[0097] The transaction support device 30 then displays a predetermined screen on the seller's terminal 10 that displays the purchase price and allows the seller to select whether to negotiate with the prospective buyer using the buyer negotiation screen 2600 (described later) or to agree to a transaction at the purchase price (s71). If the seller selects to negotiate, the transaction support device 30 displays the buyer negotiation screen 2600 on both the prospective buyer's terminal 20 and the seller's terminal 10.

[0098] On the other hand, if the buyer chooses to accept a buy / sell transaction at the purchase price, the transaction is considered complete, and the transaction support device 30 registers information about that transaction in the seller's sales performance information 323 and the buyer's purchase performance information 326 (s74). Subsequently, the transaction support device 30 executes an evaluation score setting process s10 to set an evaluation score from the buyer to the seller. This completes the buyer transaction process s6.

[0099] Meanwhile, in s72, the transaction support device 30 displays a second product screen on the prospective buyer terminal 20, which displays information about the selected product and allows the buyer to confirm the purchase of the selected product (unlike the first product screen, no confirmation or negotiation with the seller takes place).

[0100] The transaction support device 30 then waits for a buyer to specify the purchase or sale of PET bottles via the second product screen 2500 (specifically, it waits for a specification in the bid specification field 2503 on the second product screen 2500) (s73: NO). If a buyer specifies the purchase or sale of PET bottles (s73: YES), the transaction support device 30 executes the processes described in s74 and below.

[0101] (Seller information screen) Figure 22 shows an example of the seller information screen 2200 displayed in the buyer transaction processing s6. This seller information screen 2200 displays the attribute information 2201 of the selected seller (location, environmental contribution record, past sales record of PET bottles (total quantity of PET bottles, total value, average selling price)) and information 2202 of PET bottles that the seller has wished to sell (purity, quantity, price, evaluation score obtained from buyers).

[0102] (1st product screen) Figure 23 shows an example of the first product screen 2300 displayed in the buyer transaction processing s6. This first product screen 2300 includes an image 2301 of the selected product, attribute information 2302 of the selected product, a negotiation designation field 2303 that displays the buyer negotiation screen 2600 for confirmation (negotiation) with the seller, and a bid designation field 2304 that specifies the purchase of the selected product.

[0103] (Bidding screen) Figure 24 shows an example of a bidding screen 2400 displayed in buyer transaction processing s6. This bidding screen 2400 includes an image 2401 of the selected product, attribute information 2402 of the selected product, a price input field 2403 for receiving the purchase price of the selected product, and a bid confirmation field 2404 for confirming the purchase price.

[0104] (2nd product screen) Figure 25 shows an example of the second product screen 2500 displayed in the buyer transaction processing s6. This second product screen 2500 includes an image 2501 of the selected product, attribute information 2502 of the selected product, and a bid specification field 2503 for specifying the purchase of the selected product. The second product screen 2500 is equivalent to the first product screen 2300 with the negotiation specification field 2303 removed. Alternatively, the second product screen 2500 may be the first product screen 2300 with the negotiation specification field 2303 disabled.

[0105] (Buyer negotiation screen) Figure 26 shows an example of the buyer negotiation screen 2600 displayed in the buyer transaction processing s6. The buyer negotiation screen 2600 includes message display fields 2601, 2602, and 2603 that display messages sent and received between the seller and the potential buyer, a message input field 2604 that accepts messages to be sent by the potential buyer to the seller, and a message sending field 2605 that sends the message entered in the message input field 2604 to the seller's terminal.

[0106] <Processing proposals from trading partners> Next, Figure 27 is a flowchart illustrating the details of the trading partner proposal process s8.

[0107] The transaction support device 30 checks whether it has received a request for a proposal from a potential buyer or a potential seller (s81, s82).

[0108] If the request is for a proposal from a potential buyer (s82:YES), the transaction support device 30 executes the process in s83; if the request is for a proposal from a potential seller (s82:NO), the transaction support device 30 executes the process in s89.

[0109] In step s83, the transaction support device 30 identifies all prospective buyers who have set the purity, quantity, and price of the PET bottles as requested by the prospective seller who requested the proposal (hereinafter referred to as the target prospective seller).

[0110] For example, the transaction support device 30 obtains records relating to the target seller from the seller transaction conditions information 322. Then, the transaction support device 30 identifies all buyer IDs 1301 from each record in the buyer transaction conditions information 325 whose purity 1302 matches the purity 1002 of the obtained record, whose quantity 1303 matches the quantity 1003 of the obtained record, and whose purchase price 1304 matches the selling price 1004 of the obtained record.

[0111] Furthermore, the transaction support device 30 may determine that the two values ​​match if the difference between the value of the prospective buyer and the value of the target prospective seller is within a predetermined range.

[0112] Furthermore, the transaction support device 30 identifies all prospective buyers who have set up the purchase history of PET bottles (number of transactions, average purchase price, etc.) required by the target seller (s84).

[0113] For example, the transaction support device 30 obtains records related to the target seller from the seller transaction conditions information 322. Meanwhile, the transaction support device 30 identifies the number of purchases for each prospective buyer and calculates the average purchase price by referring to the records of each buyer ID 2001 in the buyer purchase history information 326. The transaction support device 30 identifies all buyer IDs of prospective buyers whose transaction count 1005 and average purchase price match the records obtained above.

[0114] Furthermore, the transaction support device 30 may determine that the two values ​​match if the difference between the value of the prospective buyer and the value of the target prospective seller is within a predetermined range.

[0115] Furthermore, the transaction support device 30 identifies all prospective buyers who have set up the environmental contribution record for PET bottles required by the target seller (s85).

[0116] For example, the transaction support device 30 obtains records relating to the target seller from the seller transaction conditions information 322. The transaction support device 30 then identifies all buyer IDs 701 from each record in the buyer attribute information 324 where the authorization 703 matches the authorization status 1007 of the obtained record, the authentication information 704 matches the authentication status 1008 of the obtained record, and the overseas transaction feasibility 705 matches the overseas transaction status 1009 of the obtained record.

[0117] Furthermore, the transaction support device 30 may obtain the prospective buyer's environmental contribution record using an external information processing system (such as the prospective buyer's website) instead of the buyer attribute information 324. This allows for the acquisition of objective information on the prospective buyer's environmental contribution record. In this case, the transaction support device 30 may prioritize the prospective buyer's environmental contribution record obtained from the external information processing system over the buyer attribute information 324 obtained from the buyer attribute information 324. In addition, the transaction support device 30 may display the environmental contribution record obtained from the external information processing system on each screen in a predetermined output format (for example, different colors).

[0118] The transaction support device 30 determines whether or not to repeatedly execute the processes in s83-s85 (s86). For example, the transaction support device 30 may receive a specification from the seller terminal 10 indicating whether or not to repeat the process, or it may determine whether or not the processes in s83-s85 have been repeated more than a predetermined number of times.

[0119] If the processes s83-s85 are to be executed repeatedly (s86:YES), the trading support device 30 executes the process s87. If the processes s83-s85 are not to be executed repeatedly (s86:NO), the trading support device 30 executes the process s88.

[0120] In s87, the transaction support device 30 temporarily changes at least one of the conditions of the seller. After that, processing from s83 onwards is carried out.

[0121] The method for changing each condition is not particularly limited, but for example, if the condition is the presence or absence of an event (authorization, certification, etc.), the transaction support device 30 will switch the presence or absence of that event. Also, for example, if the condition is a numerical value, the transaction support device 30 will set the numerical value to a predetermined amount increased or decreased. Also, for example, the transaction support device 30 will accept input of the changed value from the seller's terminal 10.

[0122] In step s88, the transaction support device 30 displays a list of potential buyers screen 2800, which shows information on the potential buyers (available buyers) identified in all processes from s83 to s87.

[0123] (List of eligible buyers screen) Figure 28 shows an example of the list of potential buyers screen 2800 displayed in the trading partner proposal process s8. The list of potential buyers screen 2800 includes an image 2801 of the PET bottles that the seller wishes to sell, a specified conditions display field 2802 (described later), and a list of potential buyers display field 2803.

[0124] The potential buyer display field 2803 includes, for each potential buyer, an attribute information specification field 2805 for displaying the attribute information of that potential buyer, a negotiation specification field 2806 for negotiating with that potential buyer, and a bidding specification field 2807 for concluding a transaction with the potential buyer.

[0125] Additionally, the list of eligible buyers screen 2800 may display a graph 2804 (such as a radar chart) comparing the attributes of each eligible buyer.

[0126] Furthermore, the list of potential buyers screen 2800 may include a field for changing conditions 2808, which is used when executing the process in s87 (temporarily changing the conditions of sellers).

[0127] (Specified condition display field) Figure 29 shows an example of the specified conditions display field 2802 on the list of potential buyers screen 2800. The specified conditions display field 2802 displays the number of potential buyers 2902 who would meet each of the seller's conditions 2901 (purity, quantity, location, environmental contribution record, etc.) indicated in the seller's transaction conditions information 322 if those conditions were changed.

[0128] Furthermore, the specified conditions display field 2802 may also display the number of people who would be eligible to purchase if each condition were not present.

[0129] On the other hand, as shown in Figure 27, at s89, the transaction support device 30 identifies all sellers who have set the purity, quantity, and price of the PET bottles required by the buyer who requested the proposal (hereinafter referred to as the target buyer).

[0130] For example, the transaction support device 30 obtains records relating to the target prospective buyer from the buyer transaction conditions information 325. Then, the transaction support device 30 identifies all seller IDs 1001 from each record in the seller transaction conditions information 322 whose purity 1002 matches the purity 1302 of the obtained record, whose quantity 1003 matches the quantity 1303 of the obtained record, and whose selling price 1004 matches the purchase price 1304 of the obtained record.

[0131] Furthermore, the transaction support device 30 may determine that the two values ​​match if the difference between the seller's value and the target buyer's value is within a predetermined range.

[0132] Furthermore, the transaction support device 30 may use an external information processing system to verify the accuracy of information such as the purity of PET bottles registered in the seller transaction conditions information 322. For example, the transaction support device 30 can acquire images of PET bottles from the seller transaction conditions information 322 and check whether the purity obtained by analyzing the acquired images using a trained model (AI: Artificial Intelligence) matches the purity registered in the seller transaction conditions information 322. This allows prospective buyers to more reliably obtain PET bottles of their desired purity. The transaction support device 30 may also estimate purity using methods other than the trained model. Moreover, the transaction support device 30 may prioritize the purity estimated by the external information processing system over the purity registered in the seller transaction conditions information 322.

[0133] Furthermore, the transaction support device 30 identifies all sellers who have set a location as requested by the target buyer (s90).

[0134] For example, the transaction support device 30 retrieves records related to the target prospective buyer from the buyer transaction conditions information 325. Then, the transaction support device 30 identifies all seller IDs 501 from each record in the seller attribute information 321 whose location 502 matches the location 1305 of the record retrieved above.

[0135] Furthermore, the transaction support device 30 may determine that the two values ​​match if the distance between the location of the seller and the location of the target buyer is within a predetermined range.

[0136] Furthermore, the transaction support device 30 identifies all sellers who meet the evaluation score requirements set by the target buyer (s91).

[0137] For example, the transaction support device 30 retrieves records related to the target prospective buyer from the buyer transaction conditions information 325. Then, the transaction support device 30 identifies all seller IDs 1901 from among the records in the seller sales performance information 323 whose evaluation score 1905 is equal to or greater than the minimum evaluation score of the record retrieved above.

[0138] Furthermore, the transaction support device 30 identifies all sellers who have set up the environmental contribution record for PET bottles required by the target buyer (s92).

[0139] For example, the transaction support device 30 retrieves records relating to the target prospective buyer from the buyer transaction conditions information 325. The transaction support device 30 then identifies all seller IDs 501 from each record in the seller attribute information 321 where the authorization information 503 matches the authorization status 1306 of the retrieved record, the authentication information 504 matches the authentication status 1307 of the retrieved record, and the overseas transaction feasibility 505 matches the overseas transaction status 1308 of the retrieved record.

[0140] Furthermore, the transaction support device 30 may obtain the seller's environmental contribution record using an external information processing system (such as the prospective buyer's website) instead of the buyer's transaction conditions information 325. This allows for the acquisition of objective information on the seller's environmental contribution record. In this case, the transaction support device 30 may display the environmental contribution record obtained from the external information processing system on each screen in a predetermined output format (for example, different colors). The transaction support device 30 may also prioritize the information obtained from the external information processing system over the information registered in the buyer's transaction conditions information 325.

[0141] The transaction support device 30 determines whether or not to repeatedly execute the processes in s89-s92 (s93). For example, the transaction support device 30 may receive a specification from the prospective buyer terminal 20 indicating whether or not to repeat the process, or it may determine whether or not the processes in s89-s92 have been repeated more than a predetermined number of times.

[0142] If the processes s89-s92 are to be executed repeatedly (s93:YES), the trading support device 30 executes the process s94. If the processes s89-s92 are not to be executed repeatedly (s93:NO), the trading support device 30 executes the process s95.

[0143] In s94, the transaction support device 30 temporarily changes at least one of the conditions of the prospective buyer. After that, processing from s89 onwards is carried out.

[0144] The method for changing each condition is not particularly limited, but for example, if the condition is the presence or absence of an event (authorization, certification, etc.), the transaction support device 30 will switch the presence or absence of that event. Also, for example, if the condition is a numerical value, the transaction support device 30 will set the numerical value to a predetermined amount increased or decreased. Also, for example, the transaction support device 30 will accept input of the changed value from the prospective buyer terminal 20.

[0145] In s95, the transaction support device 30 displays a list of potential sellers screen 3000, which shows information on the sellers identified in all processes from s89 to s94. This completes the trading partner proposal process s8.

[0146] (List of potential buyers screen) Figure 30 shows an example of the list of potential sellers screen 3000 displayed in the trading partner proposal process s8. The list of potential sellers screen 3000 has a specified conditions display field 3001 and a potential seller display field 3002 that displays a list of potential sellers.

[0147] The specified conditions display field 3001 displays information corresponding to the specified conditions display field 2802 on the list of potential buyers screen 2800. Specifically, for each condition indicated in the seller transaction conditions information 322 (purity, quantity, location, environmental contribution record, etc.), the number of sellers who meet the requirements when the value of the required item is changed is displayed.

[0148] Furthermore, the specified conditions display field 3001 may also display the number of potential buyers assuming that each requested item does not exist.

[0149] The seller display section 3002 includes, for each seller, an image 3003 of the PET bottle that the seller wishes to sell, the purity 3004 of the PET bottle, the quantity 3005 of the PET bottle, the asking price 3006 for the PET bottle, and an attribute information specification section 3007 for displaying the attribute information of the seller.

[0150] Furthermore, the list of potential sellers screen 3000 may include a field for changing conditions 3008, which is used when executing the s94 process (temporarily changing the conditions of prospective buyers).

[0151] <Evaluation score setting process> Figure 31 is a flowchart illustrating the details of the evaluation score setting process s10. The evaluation score setting process s10 is initiated, for example, after a sales transaction between a seller and a buyer (buyer) has been concluded, when a predetermined input is made from the buyer's terminal 20 to the transaction support device 30.

[0152] The transaction support device 30 displays an evaluation score input screen 3200 on the prospective buyer terminal 20 of the PET bottle purchaser, which accepts the input of an evaluation score for the seller of the PET bottle (s101). The evaluation score consists of scores for items such as the quality of the PET bottle, the delivery time of the transaction, and the overall transaction response.

[0153] When the transaction support device 30 obtains the evaluation score entered by the buyer via the evaluation score input screen 3200, it sets the information of the obtained evaluation score to the evaluation score 1905 of the seller's record in the seller's sales performance information 323 (s102). This completes the evaluation score setting process s10.

[0154] (Evaluation score input screen) Figure 32 shows an example of the evaluation score input screen 3200 displayed in the evaluation score setting process s10. The evaluation score input screen 3200 has an input field 3201 for the quality of the PET bottle, an input field 3202 for the delivery date score, an input field 3203 for the transaction response score, and a registration field 3204 for registering each of the entered scores.

[0155] As described above, the transaction support system 1 of this embodiment identifies a client (seller attribute information 321) among the client information (seller attribute information 321) related to each client (seller who wishes to sell PET bottles) that has information that satisfies the conditions indicated by the processor condition information (buyer transaction condition information 325), which is information about the conditions required by the processor (buyer who wishes to buy). In this embodiment, the system outputs the client (seller who wishes to sell) information related to the identified client information to the output device. On the other hand, the transaction support system 1 of this embodiment identifies a processor (buyer attribute information 324) among the processor information (buyer attribute information 324) related to each processor (buyer who wishes to buy PET bottles) that has information that satisfies the conditions indicated by the client condition information (seller transaction condition information), which is information about the conditions required by the client (seller who wishes to sell). In this embodiment, the system outputs the processor (buyer who wishes to buy) information related to the identified processor condition information to the output device.

[0156] In other words, the transaction support system 1 of this embodiment identifies prospective buyers and sellers who meet the conditions for selling and buying PET bottles, and outputs the identified information.

[0157] Thus, the transaction support system 1 of this embodiment can support transactions between parties for the recycling of PET bottles. This can promote the recycling of PET bottles. Furthermore, traceability can be ensured based on the information managed by the transaction support system 1.

[0158] Furthermore, in this embodiment, when the transaction support system 1 identifies a requester (seller transaction condition information 322) among the requester information (seller transaction condition information 322) relating to each requester (seller), that has information that satisfies the conditions regarding the state parameters (purity, etc.) of PET bottles requested by the processor (buyer), it outputs the information of the requester (seller) relating to the identified requester information to the output device 34.

[0159] In this way, regarding PET bottle recycling, by identifying sellers who meet the conditions for the condition of PET bottles required by prospective buyers, PET bottle recyclers can process PET bottles of a quality they can handle.

[0160] Furthermore, in this embodiment, the transaction support system 1 identifies a client (seller transaction condition information 322) among the client information (seller transaction condition information 322) related to each client (seller), and if that client information (seller transaction condition information 322) has information that satisfies the conditions indicated by the information representing the client's (seller's) track record regarding the processing of PET bottles requested by the processor (buyer), such as the seller's environmental contribution record and evaluation score, the system outputs the client (seller) information related to the identified client information to the output device 34.

[0161] In this way, regarding PET bottle recycling, by identifying sellers who have a track record of handling the recycling of PET bottles requested by prospective buyers, PET bottle recycling companies can reliably handle the recycling of PET bottles from trustworthy sellers.

[0162] Furthermore, in this embodiment, the transaction support system 1 identifies a client information (seller transaction condition information 322) that satisfies the conditions indicated by the processor conditions (buyer transaction condition information 325), which are the conditions requested by the processor (buyer). When this client information (seller transaction condition information 322) pertaining to each client (seller) is identified, the system accepts confirmation input from the client (seller) regarding the processing request (buyer negotiation screen 2600). Upon confirmation input, the system outputs the client (seller) information to the output device 34 for the identified client information (seller transaction condition information 322).

[0163] In this way, regarding the recycling of plastic bottles, by requiring prior confirmation of the transaction from those wishing to sell, those wishing to sell plastic bottles can entrust the recycling process to trustworthy potential buyers.

[0164] Furthermore, the transaction support system 1 of this embodiment modifies the processor conditions (buyer transaction conditions information 325) that have been set, and identifies a client information (buyer transaction conditions information 325) that satisfies the conditions indicated by the modified processor conditions (buyer transaction conditions information) among the client information (seller transaction conditions information 322) related to each client (seller), and outputs the client information (seller) related to the identified client information to the output device 34.

[0165] In this way, regarding the recycling of PET bottles, by identifying potential sellers when the conditions for potential buyers are changed, recycling companies can, for example, broadly identify potential sellers of PET bottles that they can accept.

[0166] On the other hand, the transaction support system 1 of this embodiment identifies a processor (buyer attribute information 324) among the processor information (buyer attribute information 324) related to each processor (prospective buyer) that has information that satisfies the conditions indicated by the information representing the processor's (prospective seller's) track record in processing PET bottles (environmental contribution record, etc.) as requested by the requester (prospective seller), and outputs the information of the processor (prospective buyer) related to the identified processor information to the output device 34.

[0167] In this way, regarding the recycling of PET bottles, by identifying potential buyers who have a proven track record in recycling PET bottles, as requested by those wishing to sell PET bottles, those requesting PET bottle recycling can entrust the recycling process to a reliable recycling company.

[0168] Furthermore, the transaction support system 1 of this embodiment modifies the initially set client condition information (seller transaction condition information 322), and when it identifies a processor information (buyer attribute information 324) that satisfies the conditions indicated by the modified client condition information (seller transaction condition information 322) among the processor information (buyer attribute information 324) related to each processor (prospective buyer), it outputs the processor (prospective buyer) information related to the identified processor information to the output device 34.

[0169] In this way, regarding the recycling of PET bottles, by identifying potential buyers when the conditions for sellers are changed, sellers can, for example, broadly identify PET bottle recycling companies that they can accept.

[0170] Furthermore, the transaction support system 1 of this embodiment has the determination device 40 measure the value of the condition parameter of the PET bottle that the requester (seller) is requesting to be processed, and stores the measured value in the storage device 32.

[0171] This allows for the accurate acquisition of the state parameter values ​​of the plastic bottle.

[0172] The above description of embodiments is for the purpose of facilitating understanding of the present invention and does not limit it. The present invention can be modified and improved without departing from its spirit, and equivalents thereof are included.

[0173] For example, some of the hardware components of each device in this embodiment may be provided in other devices.

[0174] Furthermore, each program of each device may be provided in other devices, a program may consist of multiple programs, or multiple programs may be integrated into a single program.

[0175] Furthermore, in this embodiment, the case in which the purity of the PET bottle is the determining factor for determining the appropriateness of recycling PET bottles has been described, but other determining factors for PET bottles (for example, whether or not they are in an uncompressed shape) may also be adopted. [Explanation of symbols]

[0176] 1 Transaction support system, 30 Transaction support device, 301 Automatic judgment unit, 302 Transaction information registration unit, 303 Matching unit, 304 Negotiation support unit, 305 Evaluation score calculation unit

Claims

1. A storage device that stores, for each of the multiple clients requesting the disposal of plastic bottles, client information which is information about the client or the plastic bottles that are the subject of the client's request, and for each of the multiple processors that process the plastic bottles, processor information which is information about the processor or the plastic bottles that are the subject of the processing, and When, among the client information relating to each of the aforementioned clients, client information that satisfies the conditions indicated by the processor condition information, which is information about the conditions required by the processor, is identified, a purchase condition matching process is performed to output the client information relating to the identified client information to the output device. A computing device that, when it identifies processor information from among the processor information relating to each of the aforementioned processors that has information that satisfies the conditions indicated by the client condition information, which is information about the conditions requested by the client, performs a sales condition matching process that outputs the information of the identified processor to the output device. A transaction support system equipped with the following features.

2. The storage device stores, as the client information, the value of the state parameter of the PET bottle, which represents the degree to which the PET bottle is suitable for processing. The aforementioned computing device is In the sales condition matching process, if the processor identifies client information that satisfies the conditions regarding the status parameters requested by the processor from among the client information relating to each client, the processor outputs the client information relating to the identified client information to the output device. The transaction support system according to claim 1.

3. The storage device stores, as client information, information representing the client's track record regarding requests for the disposal of plastic bottles. The aforementioned computing device is In the purchase condition matching process, if the processor identifies client information that satisfies the conditions indicated by the performance data requested by the processor among the client information relating to each client, the processor outputs the client information relating to the identified client information to the output device. The transaction support system according to claim 1.

4. The aforementioned computing device is In the purchase condition matching process, if, among the client information relating to each client, client information that satisfies the conditions indicated by the processor condition information, which is information about the conditions required by the processor, is identified, a negotiation support process is executed to receive confirmation input from the client regarding the request for the process, and if confirmation input is received, the client information relating to the identified client information is output to the output device. The transaction support system according to claim 1.

5. The aforementioned computing device is In the aforementioned purchase condition matching process, if the processor condition information is further modified and, among the client information relating to each client, client information that satisfies the conditions indicated by the modified processor condition information is identified, the client information relating to the identified client information is output to the output device. The transaction support system according to claim 1.

6. The storage device stores information representing the processor's track record in processing PET bottles as the processor information. The aforementioned computing device is In the sales condition matching process, if, among the processor information relating to each processor, information that satisfies the conditions indicated by the performance data requested by the client is identified, the information of the identified processor is output to the output device. The transaction support system according to claim 1.

7. The aforementioned computing device is In the aforementioned sales condition matching process, if the client condition information is further modified and, among the processor information relating to each processor, processor information that satisfies the conditions indicated by the modified client condition information is identified, the processor information relating to the identified client information is output to the output device. The transaction support system according to claim 1.

8. The aforementioned computing device is The system performs an automatic determination process in which the state parameter values ​​of the PET bottles that the client requests to be processed are measured by a predetermined device, and the measured values ​​are stored in the storage device. The transaction support system according to claim 1.

9. A transaction support method comprising a storage device and a computing device, wherein the computing device stores client information, which is information about the client or the PET bottles that are the subject of the client's request, for each of the multiple clients who request the disposal of PET bottles, and processor information, which is information about the processor or the PET bottles that are the subject of the processing, for each of the multiple processors who process the PET bottles, the computing device is When, among the client information relating to each of the aforementioned clients, client information that satisfies the conditions indicated by the processor condition information, which is information about the conditions required by the processor, is identified, a purchase condition matching process is performed to output the client information relating to the identified client information to the output device. If, among the processor information relating to each of the aforementioned processors, processor information that satisfies the conditions indicated by the client condition information, which is information about the conditions requested by the client, is identified, then a sales condition matching process is performed in which the information of the identified processor is output to the output device. Transaction support methods.