Information processing systems, programs, and information processing methods

Abstract

The present invention provides an information processing system that can automatically generate documents of enormous volume, particularly important matters explanation documents used in real estate sales contracts, and reduce the burden on those who check these important matters explanation documents. [Solution] According to one aspect of the present invention, an information processing system is provided, comprising a memory and a processor, wherein the processor is configured to perform the following steps by reading a program recorded in the memory: in a first acquisition step, data of multiple documents relating to real estate is acquired; in a first output step, data of an important matters explanation document with entries entered is output to the artificial intelligence unit by inputting the data of the multiple documents into the artificial intelligence unit; in a first display control step, the important matters explanation document is displayed in a first area and the document data is displayed in a second area in a manner visible to the user; and in a second display control step, when a specific entry field of the important matters explanation document is selected by the user, the corresponding part of the document corresponding to the entry field is highlighted.

Description

[Technical Field]

[0001] The present invention relates to an information processing system, a program, and an information processing method. [Background Art]

[0002] In recent years, techniques have been used in which a plurality of documents are input to a specific algorithm, and a document integrating data described in these documents is generated. For example, Patent Document 1 discloses a technique for automatically generating a document of important matters related to real estate business. [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2023-062176 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] Further progress of such research is demanded, but the generated document often has an enormous volume, which imposes an excessive burden on the inspector.

[0005] In view of the above circumstances, the present invention aims to provide an information processing system and the like that can automatically generate an enormous-volume document, particularly a document of important matters used in real estate sales contracts, and reduce the burden on the inspector who checks the document of important matters. [Means for Solving the Problem]

[0006] According to one aspect of the present invention, an information processing system is provided, comprising a memory and a processor, wherein the processor is configured to perform the following steps by reading a program recorded in the memory: in a first acquisition step, data of multiple documents relating to real estate is acquired; in a first output step, the data of the multiple documents is input to an artificial intelligence unit, causing the artificial intelligence unit to output data of an important matters explanation document with the fields to be filled in; in a first display control step, the important matters explanation document is displayed in a first area and the document data is displayed in a second area in a manner visible to the user; and in a second display control step, when a specific field to be filled in the important matters explanation document is selected by the user, the corresponding part of the document corresponding to the field to be filled in is highlighted.

[0007] In this configuration, the sources of information listed in the section of the important matters explanation document are highlighted, eliminating the need for the person checking the important matters explanation document to find the sources themselves, and thus improving work efficiency. [Brief explanation of the drawing]

[0008] [Figure 1] This is a diagram illustrating the overview of Information Processing System 1. [Figure 2] Block diagram showing the hardware configuration of server 10. [Figure 3] Block diagram showing the hardware configuration of the property manager terminal 20. [Figure 4] This is a block diagram showing the functions implemented by the control unit 11 of the server device 10. [Figure 5] This flowchart outlines the information processing (automatic generation and highlighting of important information documents) performed by Information Processing System 1. [Figure 6] This is an activity diagram showing further details of the processes performed by Information Processing System 1. [Figure 7] This flowchart shows the process that information processing system 1 performs in the modified example. [Figure 8] This is the project list screen. [Figure 9] This is an example of a screen that appears when uploading documents necessary for the automatic generation of the Important Matters Explanation Document. [Figure 10] This is an example of a screen that appears when uploading the documents required to generate the important matters explanation document fails. [Figure 11] This is an example of a screen showing the important information document generated by the artificial intelligence unit 117 displayed on the user's real estate manager terminal 20, assuming the document was uploaded correctly. [Figure 12] This is an example of a screen displaying, on the real estate manager terminal 20, the important matters explanation document and the corresponding sections of the required documents for the selected section, when a user selects a section in the important matters explanation document. [Figure 13] This is an example of a screen displayed when a user selects a field in the Important Matters Explanation document, and the corresponding field in the acquisition documents is displayed simultaneously on the real estate manager terminal 20, but the highlighted field is incorrect and the user requests a correction. [Figure 14] This is an example of a screen that appears when a user selects a field in the Important Matters Explanation document, and the fields in the Important Matters Explanation document and the corresponding documents are displayed simultaneously on the real estate manager terminal 20, and the highlighted field is correct, but the information written there is not correctly reflected in the Important Matters Explanation document. [Figure 15] This is an example of urban planning information. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below. The various features shown in the embodiments below can be combined with each other.

[0010] The information processing system according to this embodiment is as follows: An information processing system comprises a memory and a processor, wherein the processor reads a program stored in the memory, thereby causing each of the following units to exert the functions provided respectively therein. A first acquisition unit acquires data of a plurality of documents related to real estate. A first output unit inputs the data of the plurality of documents to an artificial intelligence unit 117, thereby causing the artificial intelligence unit 117 to output data of an important matters explanation sheet with entry fields filled therein. A first display unit displays the important matters explanation sheet in a first area and displays the document data in a second area in a mode visually recognizable to a user. When the user selects a specific entry field of the important matters explanation sheet, a display control unit causes a corresponding position of the document corresponding to the entry field to be highlighted and displayed.

[0011] Incidentally, a program for implementing software appearing in one embodiment may be provided as a non-transitory computer-readable medium readable by a computer, may be provided so as to be downloadable from an external server, or may be provided such that the program is started on an external computer and the function is implemented in a client terminal (so-called cloud computing).

[0012] In addition, in various information processing according to one embodiment, input and output corresponding to the input can be implemented. Here, as long as an output is obtained as a result of the input, the form of information referred to in such information processing (hereinafter referred to as reference information) is not limited. The reference information may be, for example, rule-based information such as a database, a lookup table, a predetermined function (including judgment formulas such as regression formulas constructed by statistical methods), a trained model in which correlation between input and output is learned in advance, or generative AI such as a large language model or a visual language model that can output a desired result by inputting a prompt.

[0013] Furthermore, in one embodiment, the term "unit" may include, for example, a combination of hardware resources implemented by circuits in a broad sense and software information processing that can be specifically realized by these hardware resources. In addition, various types of information are handled in one embodiment, and such information can be represented, for example, by physical values of signal values representing voltage and current, the level of signal values as a binary bit aggregate composed of 0 or 1, or quantum superposition (so-called quantum bits), and communication and calculation can be executed on circuits in a broad sense.

[0014] Furthermore, a circuit in a broad sense is a circuit implemented by appropriately combining at least circuits, circuitry, processors, memories, and the like. The processor may be a general-purpose processor or a dedicated circuit. That is, it includes application specific integrated circuits (ASIC), programmable logic devices (for example, Simple Programmable Logic Device (SPLD), Complex Programmable Logic Device (CPLD), and Field Programmable Gate Array (FPGA)) and the like.

[0015] 0. Scope of Application of the Present Invention As described above, the present invention aims to reduce the burden on checkers of documents that tend to have an enormous volume, and particularly targets important matter explanations used in real estate sales contracts as the subject documents. A checker is a person who has the role of checking whether there are any deficiencies in the content of an important matter explanation that has been prepared once, whether information has been correctly transcribed from various documents described above, and the like. This checker may be the same person or a different person from the person who prepared the important matter explanation at the real estate administrator D1, or may be the buyer of the property himself / herself.

[0016] Here, we will briefly explain the "Important Matters Explanation Document" used in this specification. In real estate transactions, the Real Estate Transaction Business Act obligates real estate agents to explain important matters concerning the contract, such as facilities, conditions, and restrictions, to prospective real estate buyers. Furthermore, this explanation must be conducted face-to-face by a licensed real estate agent presenting their license, and the contents must be provided to the prospective buyer in writing (in recent years, online consultations known as IT-based explanations of important matters have also been permitted). In the following descriptions of the embodiments, the "Important Matters Explanation Document" may be abbreviated as "Important Matters Explanation" especially in diagrams.

[0017] An explanation of important matters refers to the process in real estate transactions where a real estate agent, acting as a licensed real estate agent, explains important contractual matters to the parties involved. The document containing the details of this explanation and provided to the parties is called an explanation of important matters. These matters are stipulated in Article 35 of the Real Estate Transaction Business Act.

[0018] In real estate transactions, an explanation of important matters is required when a real estate agent acts as the seller or when acting as an agent or intermediary. This explanation must be given before the sales contract or lease agreement is concluded. Furthermore, real estate agents must have a licensed real estate agent provide the explanation, and all important matters to be explained must be recorded in writing, with the licensed real estate agent providing this document (the explanation of important matters). In transactions involving multiple real estate agents, such as those involving agency or intermediation, each real estate agent has an obligation to explain the important matters from their respective perspective.

[0019] The important matters explanation document for a real estate transaction is prepared by referring to the building register, the important matters investigation report, and the property's management regulations. The building register is a document issued by the Legal Affairs Bureau that contains registration information about a specific building. More specifically, it contains information that identifies the property, such as its location, house number, type, structure, and floor area, as well as information on rights, such as the owner's name and address, and whether or not there are any security interests such as mortgages. In short, it is used to confirm detailed information about the property and rights, and serves as the basic document for preparing the important matters explanation document.

[0020] The Important Matters Investigation Report is a report compiled by a condominium management company, summarizing the management status and related information of a condominium. More specifically, it includes the management association's operational status, such as general meeting minutes and budget / financial reports, as well as the repair history and plans, and financial status, such as the income and expenditure of management fees and repair reserve funds. In short, it is a document used to understand the management and financial status of a condominium and to provide transparent information to potential buyers.

[0021] The property management regulations are documents that define the rules among residents and the basic policies for management and operation in multi-unit housing such as condominiums and housing complexes. More specifically, they contain information such as rules for using common areas like parking lots, corridors, and elevators, methods of collecting management fees and repair reserve funds, amounts, payment timing, and uses, as well as whether pets are allowed, their conditions, and prohibited items. In short, they are documents that are referenced when preparing the important matters explanation document, with the aim of preventing disputes among residents and ensuring smooth management and operation. Thus, multiple documents related to real estate include the property title, important matters investigation report, and management regulations. This arrangement ensures that the necessary documents for preparing the important matters explanation document are reliably prepared. Note that the documents necessary for preparing the important matters explanation document are not limited to those mentioned above.

[0022] As described above, the Important Matters Explanation Document is a document that is always created when buying or selling real estate, and due to its importance, a very high level of accuracy of the information is required. However, as mentioned above, the Important Matters Explanation Document, especially one related to buying or selling, refers to a wide range of documents, so the burden on the person checking the accuracy of the created Important Matters Explanation Document is very large. Therefore, the inventor has created the embodiment described below to reduce the burden on the checker.

[0023] [First Embodiment] 1. Hardware Configuration This section describes the hardware configuration.

[0024] <Information Processing System 1> Figure 1 is a configuration diagram representing information processing system 1. The example of information processing system 1 shown in Figure 1 comprises a communication line 2, a server device 10, and a real estate manager terminal 20. The server device 10 and the real estate manager terminal 20 are configured to communicate with each other via the communication line 2. The connection between the server device 10 and the real estate manager terminal 20 may be wired or wireless.

[0025] Real estate administrator terminal 20 is an information processing terminal used by real estate administrator D1. Here, real estate administrator D1 refers to the real estate agent described above, and is a general term for companies and organizations that have a real estate agent on staff or have a business outsourcing contract with them.

[0026] Although Figure 1 shows a single real estate manager terminal 20, the server device 10 of the information processing system 1 may provide a platform used by multiple real estate managers and multiple users, for example. Such a platform can be described as a platform for the automatic generation of important matters explanation documents provided by the server device 10. Although not shown in Figure 1, there may be an operator for such a platform.

[0027] In one embodiment, the information processing system 1 consists of one or more devices or components. These components will be described below.

[0028] <Server device 10> Figure 2 is a block diagram showing the hardware configuration of the server device 10. As shown in Figure 2, the server device 10 comprises a control unit 11, a storage unit 12, a communication unit 13, and a communication bus 14. The control unit 11, the storage unit 12, and the communication unit 13 are electrically connected within the server device 10 via the communication bus 14.

[0029] <Control Unit 11> The control unit 11 performs processing and control of the overall operation related to the server device 10. The control unit 11 is, for example, a Central Processing Unit (CPU). The control unit 11 realizes various functions related to the server device 10 by reading predetermined programs stored in the memory unit 12. That is, information processing by software stored in the memory unit 12 is concretely realized by the control unit 11, which is an example of hardware, and can be executed as each functional unit included in the control unit 11. These will be described in more detail in the next section. Note that the control unit 11 is not limited to being a single unit, and the server device 10 may have multiple control units 11 for each function. The server device 10 may also be composed of a combination of these.

[0030] <Storage section 12> The storage unit 12 stores various types of information as defined above. This can be done, for example, as a storage device such as a solid-state drive (SSD) that stores various programs related to the server device 10 executed by the control unit 11, or as memory such as random access memory (RAM) that stores temporarily necessary information (arguments, arrays, etc.) related to program calculations. The storage unit 12 stores various programs, variables, etc. related to the server device 10 executed by the control unit 11.

[0031] <Communications Department 13> The communication unit 13 preferably uses wired communication methods such as USB, IEEE1394, Thunderbolt®, and wired LAN network communication, but may also include wireless LAN network communication, mobile communication such as LTE / 5G, and Bluetooth® communication as needed. In other words, it is more preferable to implement it as a collection of these multiple communication methods. That is, the server device 10 may communicate various information from the outside via the communication unit 13 and the network.

[0032] The server device 10 may be on-premises or in a cloud environment. A cloud-based server device 10 may provide the above-mentioned functions and processing in the form of, for example, SaaS (Software as a Service) or cloud computing.

[0033] <Real Estate Administrator Terminal 20> Figure 3 is a block diagram showing the hardware configuration of the real estate manager terminal 20. As shown in Figure 3, the real estate manager terminal 20 comprises a control unit 21, a storage unit 22, a communication unit 23, an input unit 24, an output unit 25, and a communication bus 26. The control unit 21, storage unit 22, communication unit 23, input unit 24, and output unit 25 are electrically connected within the real estate manager terminal 20 via the communication bus 26. The descriptions of the control unit 21, storage unit 22, and communication unit 23 are the same as the descriptions of each part in the server device 10, so they are omitted.

[0034] <Input section 24> The input unit 24 receives operation inputs made by the terminal user. The operation inputs are transmitted as command signals to the control unit 21 via the communication bus 26. The control unit 21 can perform predetermined controls and calculations based on the transmitted command signals as needed. The input unit 24 may be included in the housing of the real estate manager terminal 20 or it may be an external component. For example, the input unit 24 may be implemented as a touch panel integrated with the output unit 25. When the input unit 24 is implemented as a touch panel, the user can input tap operations, swipe operations, etc. to the input unit 24. Instead of a touch panel, the input unit 24 can be a switch button, mouse, trackpad, QWERTY keyboard, etc. In addition to the tactile input described above, voice input using a microphone is also possible.

[0035] <Output section 25> The output unit 25 displays a graphical user interface (GUI) screen that can be operated by the user. The output unit 25 may be included in the housing of the real estate manager terminal 20 or it may be an external device. Specifically, the output unit 25 can be implemented as a display device such as a CRT display, liquid crystal display, organic EL display, or plasma display. It is preferable that these display devices be used according to the type of real estate manager terminal 20.

[0036] Although Figure 1 shows an example where various terminals are laptop PCs (Personal Computers), the type of terminal for each real estate manager terminal 20 is not particularly limited in this embodiment. That is, each real estate manager terminal 20 may be a desktop PC, laptop PC, smartphone, tablet terminal, or any other type of information processing terminal.

[0037] 2. Functional Configuration This section describes the overview of the functional configuration of this embodiment. Information processing by software stored in the memory unit 12 is specifically realized by the control unit 11, which is an example of hardware, and can be executed as each functional unit included in the control unit 11 (the processor provided by the information processing system 1).

[0038] Figure 4 is a block diagram showing the functions implemented by the control unit 11 of the server device 10.

[0039] As shown in Figure 4, the server device 10 (control unit 11) includes an acquisition unit 111, an output unit 112, a display control unit 113, a document verification unit 114, a request unit 115, a memory management unit 116, and an artificial intelligence unit 117. The functions of each functional unit will be described below.

[0040] <Acquisition part 111> The acquisition unit 111 is configured to execute the acquisition step. In the acquisition step, the acquisition unit 111 receives various information. The acquisition route for this information can be set arbitrarily, but as an example, information may be acquired from various terminals, etc., related to the information processing system 1 of this embodiment. In the example of this embodiment, the acquisition unit 111 acquires data from multiple documents relating to real estate. The data from multiple documents acquired by the acquisition unit 111 refers to the building register, important matters investigation report, property management regulations, etc., as described above.

[0041] <Output section 112> The output unit 112 is configured to execute an output step. In the output step, the output unit 112 outputs various types of information handled by the information processing system 1 in a predetermined manner. For example, the output here may be to output (insert) predetermined information into a predetermined area on a screen displayed by various terminals. In this embodiment, the output unit 112 inputs data from multiple documents into the artificial intelligence unit 117, causing the artificial intelligence unit 117 to output data from an important matters explanation document with the fields to be filled in. The specific manner of such output and the details of the artificial intelligence unit 117 will be explained later.

[0042] <Display Control Unit 113> The display control unit 113 is configured to execute a display control step. In the display control step, the display control unit 113 is configured to control the display mode displayed on various terminals. Control of the display mode includes modifying or deleting displayed text and terms, and modifying highlighted areas and content. In the example of this embodiment, when a user selects a specific entry field in the Important Matters Explanation Document, the display control unit 113 highlights the corresponding area in the document corresponding to that entry field.

[0043] <Document Verification Section 114> The document verification unit 114 is configured to execute the document verification step. In the document verification step, the document verification unit 114 determines and verifies whether the various documents acquired by the acquisition unit 111 are correct. In this embodiment, the document verification unit 114 verifies whether each of the multiple documents relating to real estate acquired by the information processing system 1 via the acquisition unit 111 corresponds to a document requested by the information processing system 1. The specific details of the verification will be described later.

[0044] <Request part 115> The request unit 115 is configured to execute the request step. In the request step, the request unit 115 requests confirmation from the user regarding various types of information handled by the information processing system 1. In this embodiment, the request unit 115 requests confirmation for correction of the information entered in each field of the important matters explanation document, depending on which field has been selected. The details will be described later.

[0045] <Storage management section 116> The memory management unit 116 is configured to execute the memory management step. In the memory management step, the memory management unit 116 manages various types of information to be stored related to the information processing system 1. Typically, the memory management unit 116 is configured to store information handled by the server device 10, various terminals, etc., in a memory area. This memory area is exemplified by the memory area (storage unit 12) of the server device 10 or the memory areas of various devices, but this memory area does not necessarily have to be within the system shown in Figure 1, and the memory management unit 116 can also manage to store various types of information in an external storage device or the like.

[0046] <Artificial Intelligence Department 117> The artificial intelligence unit 117 is configured to receive input from each functional unit and return the instructed output. The artificial intelligence used by each functional unit of the server device 10 may be common to all units, or it may be prepared individually for each functional unit.

[0047] The artificial intelligence unit 117 is an AI (Artificial Intelligence) equipped with a learning model such as a language model including a Transformer (including GPT (Generative Pretrained Transformer, including GPT-1, GPT-2, GPT-3, GPT-4, GPT-4)), a BERT (Bidirectional Encoder Representations from Transformers), a BART (Bidirectional and Auto-regressive Transformer), and a Recurrent Neural Network (RNN)), and may also include a generative AI or an AI agent.

[0048] The language model is an example of a learning model using a machine learning algorithm. Specific machine learning algorithms include nearest neighbors, naive Bayes, decision trees, support vector machines, and deep learning using neural networks. The artificial intelligence unit 117 can apply the above algorithms as appropriate.

[0049] The artificial intelligence unit 117 may have a trained model constructed by a learning method such as supervised learning, unsupervised learning, or self-supervised learning. In supervised learning, machine learning is performed using training data. Training data consists of pairs of input data and output data (correct answer data) for training. Furthermore, the language model may not only be one trained for a specific task, but also a general-purpose model that can be used universally for a wide range of tasks.

[0050] The artificial intelligence unit 117 may be a natural language model, or it may include a general-purpose pre-trained model for natural language processing, such as a Large Language Model (LLM). An LLM is a pre-trained model that has learned a large amount of data in advance, such as text data (e.g., (i) web content on the internet, or (ii) data stored in a predetermined database), and can perform various language processing tasks when given a task. It can perform a wide range of natural language processing tasks, such as understanding sentence patterns and context, responding to questions, and generating sentences, according to given prompts. Such a general-purpose pre-trained model may include language models that can handle various tasks without fine-tuning using One-shot Learning or Few-shot Learning. Furthermore, a general-purpose pre-trained model can also handle various tasks using Zero-shot Learning. The artificial intelligence used in each functional unit of the control unit 11 may be a separate pre-trained model, or it may be a common general-purpose pre-trained model. A large language model is a type of generative AI and includes models provided by services such as OpenAI's GPT, Google's Gemini, and Microsoft's Azure AI Studio. Furthermore, the artificial intelligence unit 117 may include any machine learning model, deep learning model, artificial intelligence model, etc. The artificial intelligence unit 117 may be built on a system outside of the information processing system 1. Also, the artificial intelligence unit 117 may be interactive (which may be rephrased as chat type or conversation type) in which it alternately receives input to produce an instructed output and generates and outputs information.

[0051] The learning model included in the artificial intelligence unit 117 can undergo additional learning through methods such as transfer learning or fine-tuning. For example, the artificial intelligence unit 117 learns whether or not the output content has been modified by a user or the like. In other words, the artificial intelligence unit 117 may perform additional learning and fine-tuning based on the modifications made to the content output by the learning model. Also, for example, whenever new data is registered, the artificial intelligence unit 117 may perform additional learning and fine-tuning using this as new training data. This improves the accuracy of the information output from the learning model.

[0052] The learning model included in the artificial intelligence unit 117 may be a learning model (distilled model) obtained by knowledge distillation using the original trained model. In knowledge distillation, a trained model, such as a large-scale language model, is used as the teacher model, and the student model is trained by adjusting its parameters so that the loss of the student model's output relative to the teacher model's output (Soft Target Loss) is small, and that student model becomes the distilled model. Alternatively, the student model may be trained so that the loss of the student model's output relative to the correct labels (Hard Target) of the teacher data (combinations of input and output data of the learning model) is small. Compared to the original trained model (teacher model), the distilled model has similar performance to the trained model but with fewer parameters and a lower processing load. Therefore, using a distilled model can reduce the cost of the information processing system 1.

[0053] For example, the learning model used in each functional unit may be a distilled model that has been trained using combinations of input and output data from a large-scale language model as training data. Alternatively, when the information processing system 1 is introduced, a large-scale language model may be used as the learning model in each functional unit, and once training data from the large-scale language model has been accumulated, the distilled model obtained by knowledge distillation using that training data may be used as the learning model in each functional unit.

[0054] An AI agent may also be called an autonomous agent. An "AI agent" is a model that, upon input of a goal (objective, purpose, etc.) such as "teach me about XX" or a task such as "output XX," breaks down the processes necessary to reach the goal or accomplish the task into subtasks, actions, etc., and performs necessary data collection and analysis, program generation and execution, etc. The AI ​​agent takes the information and instructions input by the user as its goal, autonomously selects and executes tasks and actions according to the goal, outputs information according to the goal, and does not require user intervention (operation input). Furthermore, the AI ​​agent may autonomously plan and execute, evaluate the execution results itself, and autonomously learn in order to achieve the goal. For example, the AI ​​agent may autonomously update itself based on the execution results of subtasks (e.g., collected information, results of information analysis, etc.).

[0055] 3. Information Processing Methods This section describes the information processing method of the server device 10. This information processing method may be executed by each part of the server device 10 as individual steps. The various features described in this section can be combined with each other as long as they do not create technical inconsistencies.

[0056] As mentioned above, the information processing system 1 comprises at least one processor (for example, a control unit 11), and the processor causes each functional unit to perform its function by reading a program stored in memory. In other words, such a program causes the computer to execute each step of the information processing system 1. From another perspective, such an information processing method comprises each step of the information processing system 1. Figure 5 is a flowchart outlining the information processing (automatic generation and highlighting processing of important information disclosure documents) performed by the information processing system 1. The details of the processing related to each step in Figure 5 will be explained below.

[0057] First, in step S001, the acquisition unit 111 of the control unit 11 acquires data from multiple documents related to real estate that the real estate manager D1 (user) has uploaded to the real estate manager terminal 20. Since these "multiple documents" have already been explained, their explanation will be omitted here. In the following, these acquired real estate documents will be referred to as "acquired documents" to clearly distinguish them from the important matters explanation document.

[0058] In step S002, the output unit 112 inputs the data of the acquired documents into the artificial intelligence unit 117. Various input methods can be used here, such as converting the data into structured data such as JSON format and inputting it, or inputting it as raw text data and performing natural language processing.

[0059] In step S003, the artificial intelligence unit 117 analyzes the data of the acquired documents to generate and output data for the Important Matters Explanation Document with each entry field filled in. Here, we will explain a specific example of the processing performed by the artificial intelligence unit 117. As a prerequisite, it is assumed that the information processing system 1 has a template for the Important Matters Explanation Document with each entry field left blank, stored in text format. First, the artificial intelligence unit 117 checks the format of the acquired documents. If the acquired documents are text-based, there is no problem as the text data can be obtained directly. However, if the acquired documents have image files embedded in them (for example, photographs for building explanations or PDFs of documents that are quite old and cannot be recognized as text), the unit performs OCR (Optical Character Recognition) to convert them into analyzable text data.

[0060] Next, the artificial intelligence unit 117 checks the item names in each field of the Important Matters Explanation document and searches for the corresponding item names in the acquired documents. If it finds the corresponding item name, it outputs the information corresponding to that item name to the corresponding field of the Important Matters Explanation document. The output here can be written (generated) by the artificial intelligence unit 117 itself, or it can be copied and pasted. If it cannot find the corresponding item name in the acquired documents, it leaves the field of the Important Matters Explanation document blank and reports it as an error. By performing these processes for all fields of the Important Matters Explanation document, it generates and outputs an Important Matters Explanation document with each field filled in.

[0061] In step S004, the display control unit 113 displays the data of the important matters explanation document generated in step S003 and the data of the acquired documents on the display screen of the real estate manager terminal 20. This display method will be described in detail later using Figures 12 to 15.

[0062] In step S005, the information processing system 1 receives that the user has selected one of the fields to be filled out in the important matters explanation document. This processing may be handled by the acquisition unit 111.

[0063] In step S006, the display control unit 113 highlights the section of the acquired document corresponding to the section selected by the user. Specifically, if a section of the important matters explanation document (for example, a section containing information about the property owner) is selected by the user, the display control unit 113 displays the section of the building register referenced as the source of information for that section, which contains information about the owner, on the display screen of the real estate manager terminal 20 in a highlighted state. This highlighting may be done by surrounding the section with a border, coloring the text, or coloring the background of the section.

[0064] Figure 6 is an activity diagram showing further details of the processing performed by the information processing system 1 according to this embodiment. In Figure 6, the document explaining important matters is simply referred to as "important matters explanation."

[0065] First, in Activity A201, property manager D1 uploads various documents necessary for creating the important matters explanation document (corresponding to the "acquired documents" mentioned above) from property manager terminal 20.

[0066] In a property sales contract, information about the property owner is extremely important. Therefore, it is preferable that the acquisition unit 111 acquires information about the property owner, and that the output unit 112 outputs data from the important matters explanation document, which includes information about the property owner, to the artificial intelligence unit 117.

[0067] Furthermore, the display control unit 113 may highlight information about the owner regardless of the user's selection. This configuration makes it possible to reliably and quickly grasp so-called owner information specific to properties for sale.

[0068] In Activity A202, the Information Processing System 1 performs a verification process for the uploaded documents. More specifically, the Document Verification Unit 114 verifies whether each of the multiple documents relating to real estate acquired by the Information Processing System 1 via the Acquisition Unit 111 corresponds to a document requested by the Information Processing System 1. This configuration ensures that the documents uploaded to the system are the documents necessary for creating the Important Matters Explanation Document. The specific details of this process will be described later using Figures 9 and 10.

[0069] Activity A203 determines whether the document type is correct. If it is determined to be incorrect, the process returns to Activity A201. If the document type is determined to be correct, the process proceeds to Activity A204.

[0070] In Activity A204, the output unit 112 outputs the documents uploaded in Activity A201 to the artificial intelligence unit 117, causing the artificial intelligence unit 118 to generate an important matters explanation document. In Activity A205, the display control unit 113 displays the generated important matters explanation document on the display screen of the real estate manager terminal 20.

[0071] In Activity A206, the user selects one of the fields in the Important Matters Explanation document on the real estate manager terminal 20. In Activity A207, the display control unit 113 performs highlighting on the corresponding location in the acquired document that corresponds to the field selected by the user in Activity A206. In Activity A208, the display control unit 113 displays the highlighted location in the acquired document on the display screen of the real estate manager terminal 20.

[0072] In Activity A209, the user performs a confirmation process for the highlighted location. This confirmation process is performed by the request unit 115 of the information processing system 1. Specifically, when the highlighted portion of the acquired document is displayed on the display screen on the real estate manager terminal 20, the request unit 115 requests the user to confirm whether the location of the highlighted entry corresponds to the entry field selected by the user in Activity A206, and whether, if the entry field is correct, the content is correctly reflected. If the entry field is incorrect or the content is not correctly reflected, the request unit 115 accepts correction instructions from the user. In other words, depending on which entry field of the important matters explanation document is selected, the request unit 115 requests the user to confirm the information entered in that entry field for correction. More specifically, when the user selects an entry field, a pop-up such as "Is the entered content correct? If not, please correct it" is displayed, requesting the user to confirm and correct it. With this configuration, there is no need to reconfirm an entry field that has already been confirmed, thus avoiding inefficient repetitive work.

[0073] If the user answers "no corrections needed" in Activity A209, the process ends. If the user answers "corrections needed" in Activity A209, the information processing system 1 further checks the content of the answer and makes the necessary corrections. Specifically, in Activity A210, it first checks whether the user's answer includes "the displayed content is correct". This process may be performed by the display control unit 113 or by the acquisition unit 111.

[0074] If the user's response does not include "the displayed information is correct," it means that the information in the section of the acquired document is not correctly reflected in the Important Matters Explanation document. In this case, the process moves to Activity A211, where the output unit 112 inputs the corrections instructed by the user back into the artificial intelligence unit 117, and then regenerates and outputs the Important Matters Explanation document with the correct information reflected.

[0075] If the user's response includes "The displayed content is correct," it means that the displayed content is correct, but the corresponding section on the acquired document is not correctly highlighted. In this case, the process proceeds to activity A212, and the display control unit 113 changes the range of the corresponding section on the acquired document to be highlighted according to the corrections instructed by the user. The process ends with this change.

[0076] As described above, in this embodiment, the Artificial Intelligence Unit 117 is used to automatically generate the Important Matters Explanation Document. With this configuration, the time and effort required to create the Important Matters Explanation Document can be significantly reduced compared to manual methods.

[0077] On the other hand, the generation of the Important Matters Explanation document by the artificial intelligence unit 117 does not guarantee that the information from the acquired documents is 100% accurate. This is because there may be analysis errors or failures in image recognition. Therefore, it is necessary for a human to check whether the generated Important Matters Explanation document is accurate or not. This process was very time-consuming and laborious, just like creating the Important Matters Explanation document manually. To solve this problem, in this embodiment, the section of the acquired document corresponding to the content of the section of the Important Matters Explanation document selected by the user is highlighted, and corrections are made as needed based on correction instructions from the user, ultimately generating an Important Matters Explanation document with guaranteed accuracy. With this configuration, the checker does not need to visually check whether the information written in a section of the Important Matters Explanation document corresponds to the content written in that section of the acquired document, and the time and effort required for checking are greatly reduced.

[0078] [Differentiation] In the above embodiment, when a field in the generated important matters explanation document is selected, the corresponding location on the acquired document is highlighted. In the modified version, when the user selects a field in the important matters explanation document related to urban planning information, the information processing system 1 presents the urban planning information to the user.

[0079] First, let's explain urban planning information. Urban planning information refers to information that shows plans and regulations concerning the development, improvement, and use of cities and regions. Based on the Urban Planning Act and regulations of local governments, this shows how the future of the region will be shaped, including restrictions on land use and buildings, and the development of public facilities.

[0080] Figure 15 shows an example of urban planning information. Note that some of this information is related to the Building Standards Act. Urban planning information may not be fully and accurately described in the acquired documents, and may include information that cannot be found through internet searches.

[0081] For example, the item "Restrictions due to the relationship between the site and the road" shown in Figure 15 further includes items such as the road access (the road adjacent to the property's site). The management jurisdiction for this information varies depending on whether the road is owned by the municipality where the property is located, or if it is a national highway, etc. Such information is usually difficult to find through internet searches, as described above, and it is necessary to go directly to the relevant authority (prefectural government or ward office) to obtain the information. Therefore, as in this modified example, if the information entered in the field selected by the user concerns urban planning information, notifying the user of this fact can encourage the user to go directly to the site to obtain the necessary information.

[0082] Figure 7 shows the process performed by the information processing system 1 in this modified example. First, in step S007, the acquisition unit 111 acquires urban planning information concerning the urban planning of the area where the real estate is located. This acquisition may also be performed by uploading by the real estate manager D1, similar to the acquisition of documents.

[0083] In step S008, the information processing system 1 recognizes that the user has selected the section of the important matters explanation document containing information about urban planning on the real estate manager terminal 20. This recognition process may be handled by any functional unit of the control unit 11.

[0084] In step S009, the display control unit 113 displays on the real estate manager terminal 20 in a manner that allows the user to see that the information written in the important matters explanation document is related to urban planning information. This output method may be, for example, a pop-up, a display that highlights the text, or a display on the entry field as a simple message.

[0085] As described above, according to these modified forms, it is possible to give users insights such as the fact that the information entered in the field is not searchable on the internet and needs to be obtained by going to a public institution.

[0086] Naturally, if a user obtains information related to land planning and inputs correction instructions based on that information, the information corresponding to those correction instructions will be re-reflected. In other words, the output unit 112 corrects the relevant section of the important matters explanation document based on the user's correction instructions. The correction is a modification of the information entered by the user in the section of the important matters explanation document related to urban planning information. With this configuration, information obtained from public institutions, etc., can be appropriately reflected in the important matters explanation document.

[0087] Furthermore, urban planning information specifically includes road access information. Road access information refers to information about the roads adjacent to the property's site. This approach makes it possible to accurately determine the width of the roads adjacent to the property, and to appropriately plan future reconstruction and other related matters.

[0088] [Screen example] The embodiments and modified processes have been described above using flowcharts and activity diagrams as appropriate. Below, an example of a screen displayed on the real estate manager terminal 20 when the information processing system 1 according to one embodiment is actually operated will be described.

[0089] When you log in to and start the information processing system 1 according to one embodiment, the case list screen shown in Figure 8 is displayed. This screen displays all the cases that the real estate manager is currently in charge of. The arbitrary case name is displayed in column C1. The processing status of the case is displayed in column C2. This column displays a status that allows you to see the progress at a glance, such as "Completed," "AI Processing," or "Before Processing." The property name and its location (address) are displayed in column C3. The seller of the property is displayed in column C4. The buyer of the property is displayed in column C5, similar to column C4. The name of the person in charge who updated the information about the case is displayed in column C6. The date and time the case information was updated is displayed in column C7. Column C8 is a details column, and by expanding it, you can use other detailed functions ("Update," "View History," "Schedule," etc.).

[0090] To automatically generate an important matters explanation document for a particular case, click on the case in the case list shown in Figure 8, where the status is "Pending Processing," indicating that the important matters explanation document has not yet been automatically generated. This will take you to Figure 9. Figure 9 is an example of the screen displayed when uploading the documents necessary for the automatic generation of the important matters explanation document.

[0091] This screen requires the upload of three types of documents. These documents are as previously described: in area AR1, the "Building Registered Copy" is required; in area AR2, the "Important Matters Investigation Report" is required; and in area AR3, the "Condominium Management Regulations" is required. By dropping or selecting the files in each area, the files will be temporarily saved to the system. The formal upload process is performed by pressing button BT1 in the lower right corner of the screen to "Start AI Analysis".

[0092] When BT1 is pressed, the document verification unit 114 checks whether the uploaded document corresponds to the document requested by the information processing system 1. This verification can be done, for example, by recognizing the group of terms written on the cover of the uploaded document and determining whether the requested terms "building register," "important matters investigation report," and "condominium management regulations" are included in that group of terms.

[0093] If the upload of each document is successful, the automatic generation of the Important Matters Explanation document will begin. If the document upload fails, i.e., if the wrong document was uploaded, the screen will transition to the screen shown in Figure 10.

[0094] Figure 10 shows an example of a screen displayed when the upload of documents required for generating the Important Matters Explanation document fails. As shown in Figure 10, if the document upload fails, in addition to areas AR1 to AR3 shown in Figure 9, areas AR4 and AR5 will be displayed.

[0095] Area AR4 indicates that the building registration document has been uploaded correctly. If the document upload fails, area AR5 will display a message indicating the failure, along with the file name and size of the unuploaded document. The user can use this information to understand the reason for the upload failure and attempt to upload the document again.

[0096] If the document is uploaded correctly in the case of Figure 9 (or if it is re-uploaded correctly in the case of Figure 10), the screen will transition to the screen shown in Figure 11. Figure 11 is an example of a screen showing the state in which the important matters explanation document generated by the artificial intelligence unit 117 is displayed on the user's real estate manager terminal 20 when the document has been uploaded correctly.

[0097] As shown in Figure 11, when the Artificial Intelligence Unit 117 generates the Important Matters Explanation Document, the cover page of the document is displayed. The user views this screen to check the representative sections and confirm whether the document pertains to the case they intended. Then, by scrolling through this screen and clicking on the section that they deem requires confirmation, the user transitions to the display screen shown in Figure 12.

[0098] Figure 12 is an example of a screen that simultaneously displays the important matters explanation document and the corresponding section of the acquisition documents on the real estate manager terminal 20 when a user selects a section to be filled in within the important matters explanation document.

[0099] As shown in Figure 12, when a user selects a field in the Important Matters Explanation document, the display screen of the real estate manager terminal 20 is divided into two areas (the first area AR7 and the second area AR6). In this example screen, the Important Matters Explanation document is displayed in the first area AR7, and the information of the selected field in the Important Matters Explanation document and the corresponding location in the acquired documents are displayed in the second area AR6 with emphasis. In other words, in this embodiment, the display control unit 113 of the control unit 11 displays the Important Matters Explanation document in the first area AR7 and the data of the acquired documents in the second area AR6 in a manner that is visible to the user.

[0100] In the example shown in Figure 12, it is assumed that the section containing information about the "exclusive use area" in the Important Matters Explanation document is selected (although not shown in area AR7 of Figure 12, this section becomes visible when area AR7 is scrolled). In this case, the corresponding section of the condominium management regulations containing information about the exclusive use area of ​​the property is highlighted in the second area AR6, enclosed in highlighted area HL1. As a result, users can easily verify whether the information in the section concerning the exclusive use area of ​​the Important Matters Explanation document is correct without having to search for the documents themselves.

[0101] Furthermore, each field in the Important Matters Explanation document displayed in the first area AR7 is equipped with a check button CB1. The user can select information for one field in the Important Matters Explanation document, check the corresponding field in the acquired document displayed in the second area AR6, and, if they determine that the information is correctly reflected, press the check button CB1 to fix the content. With this configuration, it becomes possible to see at a glance which fields have been checked. This eliminates the need for subsequent re-checking, thus avoiding inefficient repetitive work.

[0102] Furthermore, for certain items in the Important Matters Explanation document, the information may be spread across multiple documents, or there may be multiple references within a single document. In such cases, by pressing the toggle button BT2 in the second area AR6 to switch the display mode of the acquired documents, all highlighted sections in the acquired documents can be displayed. In other words, if there are multiple sources of information for a section of the Important Matters Explanation document, the display control unit 113 will display these multiple sources in a verifiable manner by switching the display mode of the second area AR6. Specifically, methods such as splitting the screen and displaying the information on those screens, or enabling multiple viewings by turning pages, can be employed. With such methods, even if there are multiple sources of information, the location of each source can be reliably confirmed.

[0103] Figure 13 shows an example of a screen displayed when a user selects a field in the Important Matters Explanation document, and the corresponding fields in the acquisition documents are simultaneously displayed on the Real Estate Manager Terminal 20. However, the highlighted field is incorrect, and the user requests a correction. This corresponds to Activity A212 explained in the Activity Diagram of Figure 6.

[0104] In this example, suppose the user selects a field containing information regarding the "ownership of piping." In that case, the display control unit 113 displays the condominium management regulations in area AR6 as the location of the information source for the acquired document corresponding to that field, and highlights the highlighted portion HL2 as the corresponding location.

[0105] However, as can be seen from the description of the condominium regulations shown in the second area AR6, the highlighted portion HL2, which the display control unit 113 highlighted as a source of information regarding "ownership of piping," only covers up to the middle of items 1 and 2 of paragraph 4, and does not include part of item 2 and item 3.

[0106] The user then selects the highlighted portion HL2 shown in the second area AR6 and instructs the system to extend and modify it to the modification area MA1. In accordance with this instruction, the display control unit 113 highlights the portion including the newly highlighted portion HL2 and the modification area MA1. If necessary, the output unit 112 also outputs the Important Matters Explanation document, including the information described in the modified highlighted portion, to the artificial intelligence unit 117. In other words, if the user changes the location of the highlighted section, the output unit 112 outputs the information described in the changed section to the corresponding section of the Important Matters Explanation document. This configuration makes it possible to appropriately correct errors in the display of information sources.

[0107] Figure 14 shows an example of a screen displayed when a user selects a field in the Important Matters Explanation document, and the corresponding fields in the Important Matters Explanation document and the relevant documents are simultaneously displayed on the real estate manager terminal 20. The highlighted field is correct, but the information written there is not correctly reflected in the Important Matters Explanation document. This corresponds to activity A211 as explained in the activity diagram in Figure 6.

[0108] In this example, suppose the user selects field C9, which contains information about the "Name of the person in charge of this property." Then, the display control unit 113 displays the Important Matters Investigation Report in area AR6 as the location of the information source of the acquired document corresponding to that field, and highlights the highlighted portion HL3 as the corresponding location.

[0109] However, although the highlighted section HL3 of the Important Matters Investigation Report lists the names of the property's personnel as "Sales Representative: Kamada; Accounting Representative: Shimada," section C10 of the Important Matters Investigation Report only lists "Sales Representative: Kamada," omitting the name "Accounting Representative: Shimada."

[0110] The user then refers to the highlighted section HL3 displayed in the second area AR6 and adds the correct information, "Accounting Officer: Shimada," to section C10 of the Important Matters Explanation Document.

[0111] The above visually explains the processing when operating the information processing system 1 using several screen examples. These processes can, of course, be combined and performed simultaneously in multiple ways. Furthermore, after processing, the results may be fed back to the artificial intelligence unit 117 to improve the accuracy of the analysis.

[0112] The product may be provided in any of the following embodiments.

[0113] (1) An information processing system comprising memory and a processor, wherein the processor is configured to perform the following steps by reading a program recorded in the memory, the first acquisition step is to acquire data of a plurality of documents relating to real estate, the first output step is to input the data of the plurality of documents into an artificial intelligence unit so that the artificial intelligence unit can output data of an important matters explanation document with the fields to be filled in, the first display control step is to display the important matters explanation document in a first area in a manner visible to the user and display the data of the documents in a second area, and the second display control step is to highlight the corresponding part of the document corresponding to the field to be filled in when a specific field to be filled in the important matters explanation document is selected by the user.

[0114] With this configuration, the source of the information entered in the section of the important matters explanation document is automatically highlighted, eliminating the need for the checker of the important matters explanation document to visually verify it, and thus a significant improvement in work efficiency can be expected.

[0115] (2) An information processing system as described in (1) above, wherein in the first acquisition step, information relating to the owner of the real estate is further acquired, and in the first output step, data of an important matters explanation document including information relating to the owner of the real estate is output to the artificial intelligence unit.

[0116] This approach makes it possible to reliably and quickly obtain so-called owner information specific to properties being bought and sold.

[0117] (3) An information processing system as described in (2) above, wherein in the second display control step, the information relating to the owner is highlighted regardless of the user's selection.

[0118] This approach makes it possible to reliably and quickly obtain so-called owner information specific to properties being bought and sold.

[0119] (4) An information processing system according to any one of (1) to (3) above, wherein in the second output step, if the user changes the position of the highlighted section, the information written in the changed section is output to the corresponding section of the Important Matters Explanation document.

[0120] This approach makes it possible to appropriately correct any errors in the display of information sources.

[0121] (5) An information processing system described in any one of (1) to (4) above, wherein in the request step, confirmation is requested for correction of the information described in each field of the important matters explanation document, depending on which field has been selected.

[0122] With this configuration, fields that have already been checked do not need to be checked again, thus avoiding inefficient repetitive work.

[0123] (6) An information processing system described in any one of (1) to (5) above, wherein the document verification step verifies whether each of the multiple documents relating to the acquired real estate is a document that corresponds to a document required by the system.

[0124] This configuration ensures that the documents uploaded to the system are indeed the documents necessary for creating the important matters explanation document.

[0125] (7) An information processing system according to any one of (1) to (6) above, wherein in the third display control step, if there are multiple sources of information in one of the fields of the important matters explanation document, the information processing system switches the display mode of the second area to make the multiple sources of information verifiable.

[0126] With this configuration, even if there are multiple sources of information, it is possible to reliably identify where each source is located.

[0127] (8) An information processing system according to any one of (1) to (7) above, wherein in the second acquisition step, urban planning information relating to the urban planning of the area where the real estate is located is acquired, and in the fourth display control step, the information described in the section of the important matters explanation document is displayed in a manner that allows the user to visually confirm that the information described is related to the urban planning information.

[0128] This configuration can give the checker of the important matters explanation document the realization that, for example, the information written in that section is not searchable on the internet and needs to be obtained by going to a public institution.

[0129] (9) Information processing system as described in (8) above, wherein in the third output step, the relevant part of the Important Matters Explanation document is corrected based on the user's correction instructions, wherein the correction is a correction by the user to the information described in the section of the Important Matters Explanation document relating to the urban planning information.

[0130] This approach allows for the appropriate incorporation of information obtained from public institutions, etc., into the important matters explanation document.

[0131] (10) An information processing system described in either (8) or (9) above, wherein the urban planning information includes road access information.

[0132] This configuration makes it possible to accurately determine the width of roads adjacent to the property, and to appropriately plan future reconstruction and other related matters.

[0133] (11) An information processing system described in any one of (1) to (10) above, wherein the multiple documents relating to the real estate include a property register, an important matters investigation report, and management regulations.

[0134] This approach ensures that all necessary documents for creating the important matters explanation document are prepared reliably.

[0135] (12) A program that causes a computer to perform each step of the information processing system described in any one of (1) to (11) above.

[0136] In this manner, it can be implemented as a program.

[0137] (13) An information processing method comprising each step of the information processing system described in any one of (1) to (11) above.

[0138] This embodiment can be implemented as an information processing method. Of course, this is not always the case.

[0139] Finally, while various embodiments relating to this disclosure have been described, these are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be implemented in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents. [Explanation of Symbols]

[0140] 1. Information Processing System 10 Server devices 11 Control Unit 111 Acquisition Department 112 Output section 113 Display Control Unit 114 Document Verification Department 115 Request part 116 Memory Management Department 117 Artificial Intelligence Department 12 Storage section 13 Communications Department 14 Communications Bus 2. Communication lines 20. Terminal for property managers 21 Control Unit 22 Memory section 23 Communications Department 24 Input section 25 Output section 26 Communications Bus AR1 area AR2 area AR3 area AR4 area AR5 area AR6 area AR7 area BT1 button BT2 button C1 column C2 column C3 column C4 column C5 column Column C6 C7 column C8 column C9 column Column C10 CB1 Check button HL1 Highlighted section HL2 highlight section HL3 Highlighted Section MA1 correction area D1 Real Estate Manager

Claims

1. An information processing system, The system comprises memory and a processor, the processor being configured to perform the following steps by reading a program stored in the memory: In the first acquisition step, data from multiple documents related to the real estate is obtained. In the first output step, the data of the multiple documents is input into the artificial intelligence unit, causing the artificial intelligence unit to output the data of the important matters explanation document with the fields to be filled in. In the first display control step, the important information document is displayed in the first area in a manner visible to the user, and the data of the document is displayed in the second area. In the second display control step, when the user selects a specific entry field in the important matters explanation document, the corresponding section of the document corresponding to that entry field is highlighted. Information processing system.

2. In the information processing system described in claim 1, In the first acquisition step, further information regarding the owner of the property is obtained. In the first output step, the artificial intelligence unit is further instructed to output data of the important matters explanation document, which includes information about the owner of the real estate. Information processing system.

3. In the information processing system described in claim 2, In the second display control step, information regarding the owner is highlighted regardless of the user's selection. Information processing system.

4. In the information processing system described in claim 1, In the second output step, if the user changes the location of the highlighted section, the information written in the changed section is output to the corresponding section of the Important Matters Explanation document. Information processing system.

5. In the information processing system described in claim 1, In the request step, depending on which field in the important matters explanation document is selected, confirmation is requested for correction of the information entered in that field. Information processing system.

6. In the information processing system described in claim 1, The document verification step verifies whether each of the acquired documents relating to the aforementioned real estate corresponds to a document required by the system. Information processing system.

7. In the information processing system described in claim 1, In the third display control step, if there are multiple sources of information for the information described in one of the fields in the important matters explanation document, the display mode of the second area is switched to make the multiple sources of information verifiable. Information processing system.

8. In the information processing system described in claim 1, In the second acquisition step, urban planning information concerning the urban planning of the area where the aforementioned real estate is located is obtained. In the fourth display control step, the information described in the section of the important matters explanation document is displayed in a manner that allows the user to visually confirm that it is related to the urban planning information. Information processing system.

9. In the information processing system described in claim 8, In the third output step, the relevant section of the Important Matters Explanation document is corrected based on the user's correction instructions, where the correction is a correction to the information described in the section of the Important Matters Explanation document related to the urban planning information, as requested by the user. Information processing system.

10. In the information processing system described in claim 8, The aforementioned urban planning information includes road access information. Information processing system.

11. In the information processing system described in claim 1, The aforementioned documents relating to the real estate include the property register, the important matters investigation report, and the management regulations. Information processing system.

12. It is a program, To cause a computer to perform each step of the information processing system described in any one of claims 1 to 11, program.

13. Information processing method, A method comprising each step of the information processing system described in any one of claims 1 to 11.

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