JP7449886B2 - Information sharing support method and information sharing support device - Google Patents

Description

The present invention relates to an information sharing support method and an information sharing support device.

In recent years, services such as information banks that provide personal information to companies have been launched. However, such personal information may contain sensitive information and must be handled with care from various perspectives, such as ensuring its authenticity and preventing leakage to third parties.

Conventional technology related to the handling of personal information as described above, for example, supports the disclosure of information related to the user's behavior history stored on user terminals such as mobile terminals and personal computers, or database servers, and does not impose any burden on the user. A personal information disclosure support device (see Patent Document 1) has been proposed, which reduces the burden on users and allows them to always set appropriate disclosure conditions for each service provider.

The present invention provides means for storing access history information including information indicating the access destination and access time when a user terminal accesses a website via a communication network, and calculating an access index representing the amount of access based on means for acquiring company information representing business conditions and information representing access time included in the stored access history information for each accessed website; means for calculating a reliability index representing the management reliability of the accessed website based on the acquired corporate information; means for calculating an index representing the distance of intimacy between the user and the website; and defining a range of disclosure of the user's personal information to the website based on the index representing the calculated intimacy. The present invention relates to a device including means for setting disclosure level information.

Japanese Patent Application Publication No. 2012-3323

It is expected that many companies will participate in the above-mentioned personal information provision service. On the other hand, when an individual provides personal information to such companies, the individual must decide whether or not to provide personal information to each of a vast number of companies.

However, it is difficult to accurately and efficiently make the above-mentioned judgments regarding each company using the resources such as information and judgment that individuals possess. In addition, among such many participating companies, in situations where there are multiple companies that have personal information about the same individual, when using that personal information or changing or updating that personal information, which company has the information? It is difficult for individuals and companies to individually decide whether they should obtain the information for use and roll out changes etc. between companies.

SUMMARY OF THE INVENTION An object of the present invention is to provide a technology for efficiently selecting companies to which personal information is to be provided or used in a personal information provision infrastructure in which many companies participate.

In the information sharing support method of the present invention that solves the above problems, an information processing device collects information for credit determination from the system of the business operator or a predetermined external device with respect to each business operator participating in the personal information provision infrastructure. It is obtained and stored in a storage device, and among the information for credit evaluation, it is related to the event desired by the provider of personal information, and the credibility value obtained from the evaluation organization for each item related to the event is totaled. a process of specifying the total value of the credit score for each business operator; a process of selecting a business operator to be a candidate for providing personal information based on the identified total value of the credit score ; The present invention is characterized by executing the following steps: notifying the personal information provider's terminal of the information.

Further, the information sharing support device of the present invention includes a storage device that holds information for credit judgment regarding each business entity participating in the personal information provision infrastructure, and a storage device that holds information for credit judgment, and a provider of the personal information among the information for credit judgment. is related to an event desired by the company, and the process of summing up the credit score values obtained from corporate rating agencies for each item related to the event and specifying the total value of the credit score for each business operator; A computing device that executes the process of selecting a business operator as a candidate for providing personal information based on the total value of trustworthiness , and the process of notifying the information of the selected business operator to the terminal of the personal information provider. It is characterized by containing.

According to the present invention, in a personal information provision infrastructure in which many companies participate, it is possible to efficiently select companies to which personal information is to be provided or used.
becomes possible.

FIG. 1 is a network configuration diagram including an information sharing support device according to the present embodiment. 1 is a diagram illustrating an example of a hardware configuration of an information sharing support device in this embodiment. It is a diagram showing an example of the configuration of personal basic information in the member information DB of the present embodiment. It is a diagram showing an example of the configuration of preference information in the member information DB of the present embodiment. It is a figure showing an example of composition of subscription service information in member information DB of this embodiment. It is a figure showing an example of composition of comprehensive evaluation information in member information DB of this embodiment. It is a diagram showing an example of the structure of service information in a service information DB according to the present embodiment. It is a figure showing an example of composition of participating group information in service information DB of this embodiment. It is a diagram showing an example of the structure of business status information in the service information DB of the present embodiment. It is a figure showing an example of composition of attractiveness information in service information DB of this embodiment. FIG. 2 is a diagram illustrating a configuration example of information reliability information in a service information DB according to the present embodiment. It is a figure showing the example of composition of comprehensive evaluation information in service information DB of this embodiment. It is a figure showing an example of a flow of an information sharing support method in this embodiment. It is a figure showing an example of a flow of an information sharing support method in this embodiment. It is a figure which shows the example of a screen in this embodiment. It is a figure which shows the example of a screen in this embodiment. It is a figure which shows the example of a screen in this embodiment.

<About network configuration>
Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a network configuration diagram including an information sharing support device 100 of this embodiment. The information sharing support device 100 shown in FIG. 1 is a computer that efficiently selects companies to which personal information will be provided or used in a personal information provision infrastructure in which many companies participate.

The information sharing support device 100 of this embodiment is communicably connected to a user terminal 200 and a business operator system 300 via a network 1, as shown in FIG. Therefore, these may be collectively referred to as the information sharing support system 10.

The information sharing support device 100 of this embodiment implements a personal information provision infrastructure between an individual who provides personal information and a business that receives and retains such personal information and uses it for its own business etc. It can be said that it is a device that does

On the other hand, the user terminal 200 is a terminal used by each individual who is a provider of personal information when using a service made public by the above-mentioned provision infrastructure. Specifically, smartphones, tablet terminals, personal computers, etc. can be assumed.

Further, the business system 300 is a system of a business that receives personal information from the above-mentioned individuals and holds and manages it. This business operator utilizes the personal information held and managed in this manner as necessary to conduct appropriate business. Specifically, the business operator system 300 is a server device operated by a business operator. A personal computer, etc. can be assumed.

<Hardware configuration>
Further, the hardware configuration of the information sharing support device 100 of this embodiment is shown in FIG. 2 as follows.

That is, the information sharing support device 100 includes a storage device 101, a memory 103, a calculation device 104, and a communication device 105.

Among these, the storage device 101 is configured with an appropriate nonvolatile storage element such as an SSD (Solid State Drive) or a hard disk drive.

Furthermore, the memory 103 is composed of a volatile storage element such as a RAM.

Further, the arithmetic device 104 is a CPU that reads the program 102 held in the storage device 101 into the memory 103 and executes it, performs overall control of the device itself, and performs various judgments, calculations, and control processing.

Furthermore, the communication device 105 is assumed to be a network interface card or the like that connects to the network 1 and handles communication processing with the user terminal 200 and the operator system 300.

Note that if the information sharing support device 100 has a configuration that can function as a standalone machine, an input device that accepts key inputs and voice inputs from users such as individuals and company personnel, and an output such as a display that displays processed data. It is preferable to further include a device.

Furthermore, in the storage device 101, at least a member information DB 125 and a service information DB 126 are stored, in addition to the program 102 for implementing the functions necessary for the information sharing support device of this embodiment. However, details regarding these databases will be described later.

<Data structure example>
Next, various types of information used by the information sharing support device 100 of this embodiment will be explained. FIG. 3A shows an example of personal basic information in the member DB 125 of this embodiment.

The member information DB 125 of this embodiment is a database that stores various information on individual users of the services that the above-mentioned information providing infrastructure makes public on the network 1, that is, the personal information providing services. This member information DB 125 stores tables such as personal basic information 1251, preference information 1252, subscription service information 1253, and comprehensive evaluation information 1254.

Among these, the personal basic information 1251 shown in FIG. 3A is a collection of records that link the contents of items such as each individual's age, gender, address, family composition, and identification information of the individual. There is.

Further, the preference information 1252 shown in FIG. 3B is a collection of records that link the contents of items such as applications used by each individual, action history, personality, security awareness, etc., for example.

Further, the subscribed service information 1253 shown in FIG. 3C is a collection of records that link the contents of items such as each individual's subscribed service, registration date for the service, renewal date of membership contract, etc. .

Moreover, the comprehensive evaluation information 1254 shown in FIG. 3D is, for example, a collection of records that link the values of the comprehensive evaluation determined for each individual. Comprehensive evaluation information serves as an index for determining the priority of businesses to which personal information can be provided. As specific values, for example, A: trust the business situation of the business, B: trust the attractiveness of the business, C: trust the freshness of data held by the business, and so on.

In addition, the method for specifying this comprehensive evaluation information is, for example, inputting the basic information 1251, preference information 1252, and subscription service information 1253 of the individual into a predetermined learning model, and using the output as the value of the comprehensive evaluation. Can imagine things, etc.

In this case, the learning model is generated by proceeding with machine learning using the attribute information of individuals who have provided personal information to the business operator in the past as an explanatory variable and the attribute information of the business operator as an objective variable. Further, the personal attribute information includes the above-mentioned personal basic information 1251, preference information 1252, subscribed service information 1253, and the like. Business status information 1263, attractiveness information 1264, information reliability information 1265, comprehensive evaluation information 1266, etc., which will be described later, correspond to the attributes of the business entity.

Next, FIG. 4A shows a configuration example of the service information 1261 in the service information DB 126 of this embodiment. The service information DB 126 is a database that stores information on each business operator participating in the above-mentioned provision infrastructure. Further, the service information 1261 is one of the pieces of information stored in the service information DB 126, and is information for each personal information providing service in the above-mentioned providing infrastructure.

Such service information 1261 is a collection of records in which a service name is used as a key, and values such as contents of personal information registered and provided in the service and its index are associated with each other.

Note that the above-mentioned index is linked to personal information held in the operator system 300 of each operator. In other words, it becomes an index for searching the personal information.

When a person who wishes to use personal information operates the user terminal 200 or the business operator system 300 (client terminal) and sends a search request for the type of personal information, the information sharing support device 100 The type is checked against the service information 1261, and a record having a matching value in the "registration content" column is identified.

In addition, the information sharing support device 100 extracts the value in the "index" column of the record identified as described above, adds the above-mentioned personal identification information to it, uses it as a search keyword, and uses it as a search keyword for the participating businesses of the corresponding service. A search request for personal information will be made to the business system 300. Note that the information sharing support device 100 specifies the business operator system 300 to be searched for and its address using the participating organization information 1262.

Further, FIG. 4B shows a configuration example of the participating organization information 1262 in the service information DB 126 of this embodiment. Participating organization information 1262 stores information on participating businesses of each of the above-mentioned services. Its structure is a collection of records that link businesses that are participating organizations, their comprehensive evaluations, addresses, and identification information of information providers.

Among these, the comprehensive evaluation is calculated based on business status information 1263, attractiveness information 1264, and information reliability information 1265, which will be described later. Further, the address is an address of the operator system 300 on the network 1, such as a URL (Uniform Resource Locator).

Further, FIG. 4C shows a configuration example of the business status information 1263 in the service information DB 126 of this embodiment. The business status information 1263 includes information regarding the business status of the business. In the example of FIG. 4C, the data structure is such that each item, such as business content, business history, manager, capital, performance, number of employees, future potential, and security, is associated with its credibility.

In addition, the above-mentioned creditworthiness can be determined by using a value determined by a company evaluation organization (e.g., a company rating agency, newspaper company, publisher, etc.), or by inputting various information about the company into the calculation algorithm used for such determination. shall be obtained. Such a credibility calculation method is the same for attractiveness information 1264 and information reliability information 1265, which will be described later.

Further, FIG. 4D shows a configuration example of the attractiveness information 1264 in the service information DB 126 of this embodiment. Attractiveness information 1264 is information regarding market evaluation regarding the business operator. Specifically, judgments are made regarding items such as the number of reviews posted on online review sites, etc., the number of accesses to the business's website, and the size and number of the business's main business partners. becomes.

Further, FIG. 4E shows a configuration example of the information reliability information 1265 in the service information DB 126 of this embodiment. The information reliability information 1265 is information regarding the freshness of personal information held by the business operator system 300, and is, for example, information indicating the update date of each item of personal information such as name and address.

Further, FIG. 4F shows a configuration example of the comprehensive evaluation information 1266 in the service information DB 126 of this embodiment. Comprehensive evaluation information 1266 serves as an index for determining the credibility of a business entity that can provide personal information. A specific value is, for example, a value between 0 and 100, which indicates the level of credibility of the business operator.

Further, the method for specifying this comprehensive evaluation information 1266 is, for example, the comprehensive evaluation information 1 of the business operator.
266 can be assumed to input the above-mentioned business status information 1263, attractiveness information 1264, and information reliability information 1265 into a predetermined calculation formula, and use the output as the comprehensive evaluation value.

Note that the calculation formula in this case is a formula that outputs the overall evaluation value of the business operator using each item of business status information 1263, attractiveness information 1264, and information reliability information 1265 as variables.

<Flow example: Evaluation>
Hereinafter, the actual procedure of the information sharing support method in this embodiment will be explained based on the drawings. Various operations corresponding to the information sharing support method described below are realized by a program that the information sharing support device 100 reads into a memory or the like and executes. This program is composed of codes for performing various operations described below.

FIG. 5 is a diagram illustrating a flow example of the information sharing support method in this embodiment. Here, we assume a situation in which comprehensive evaluation information 1254 and comprehensive evaluation information 1266 are obtained by performing a comprehensive evaluation of each business operator that is a participating company of the shared platform and each individual who has provided personal information to such business operators.

In this case, the information sharing support device 100 accesses the member information DB 125 at regular intervals or in response to a request from the user terminal 200, and provides personal basic information 1251 of each individual who has provided personal information to the business operator. Preference information 1252 and subscription service information 1253 are extracted (s1).

In addition, the information sharing support device 100 inputs each piece of information obtained in step s1 to a learning model that is previously held in the program 102 or can be used via the network 1, and uses the output as the value of the comprehensive evaluation information 1254. Acquire (s2).

In this case, the learning model is generated by proceeding with machine learning using the attribute information of individuals who have provided personal information to the business operator in the past as an explanatory variable and the attribute information of the business operator as an objective variable. Further, the personal attribute information includes the above-mentioned personal basic information 1251, preference information 1252, subscribed service information 1253, and the like. Business status information 1263, attractiveness information 1264, information reliability information 1265, comprehensive evaluation information 1266, etc., which will be described later, correspond to the attributes of the business entity.

The value of the comprehensive evaluation information 1254 serves as an index for determining the priority for the individual to be evaluated when selecting a business entity to which personal information can be provided. As specific values, for example, A: trust the business situation of the business, B: trust the attractiveness of the business, C: trust the freshness of data held by the business, and so on.

The information sharing support device 100 stores the value obtained in s2 in the storage device 101 as the value of the comprehensive evaluation information 1254 of the individual in the member information DB 125 (s3).

Furthermore, the information sharing support device 100 extracts business status information 1263, attractiveness information 1264, and information reliability information 1265 of each business operator from the service information DB 126 (s4).

Furthermore, the information sharing support device 100 inputs each piece of information obtained in s4 to variables in a predetermined calculation formula, and obtains the output as the value of comprehensive evaluation information 1266 (s5). The value of the comprehensive evaluation information 1266 obtained in this way serves as an index for determining the credibility of a business entity to which personal information can be provided. A specific value is, for example, a value between 0 and 100, which indicates the level of credibility of the business operator.

Further, the information sharing support device 100 stores the value obtained in s5 in the storage device 101 as the value of the comprehensive evaluation information 1266 of the corresponding business operator in the service information DB 126 (s6), and ends the process.

<Flow example: Search, change>
FIG. 6 is a diagram showing a flow example of the information sharing support method in this embodiment. Next, assume here that a certain individual operates the user terminal 200 and accesses the information sharing support device 100 in order to provide his/her personal information to participating companies of the above-mentioned sharing platform.

Specifically, the above-mentioned individual intends to change his or her own personal information (e.g. address) that was previously provided to a participating company of the shared platform, and transfers the personal information from the operator's system 300 of the participating company. Suppose you request to obtain it.

In this case, upon receiving the above-mentioned request, the information sharing support device 100 checks the type of personal information included in the request (e.g. address) against the service information 1261, and adds a record containing the same value in the "registration content" column. The index value is obtained (s10).

Next, the information sharing support device 100 uses the participating organization information 1262 to identify a company that participates in the service that is linked with the above-mentioned index in the service information 1261 and for which the above-mentioned individual is the information provider. (s11). In this case, the information sharing support device 100 will identify the participating organization whose "information provider" column includes the identification information of the individual included in the above-mentioned request.

Subsequently, the information sharing support device 100 similarly specifies an address using the participating organization information 1262 regarding the business operator system 300 of the company, that is, the business operator specified in s11 (s12).

Further, the information sharing support device 100 transmits a search request using the index obtained in s10 as a search key to the address specified in s12, and acquires the personal information of the above-mentioned individual from the business operator system 300 (s13 ).

At this time, if there are multiple business systems 300 from which personal information has been obtained, that is, there are multiple businesses, the information sharing support device 100 uses the value of the comprehensive evaluation information 1266 as the credibility of the business in the service information. For example, the operator with the highest value is identified by referring to the DB 126, and the personal information obtained from the operator system 300 of that operator is targeted for subsequent processing.

When specifying such a business operator, as illustrated in screen 1000 in FIG. 7, the information acquisition policy for the individual may be accepted (eg, selected using radio button 1001), and information may be acquired based on it. Alternatively, instead of a policy, the specification of a specific business operator may be accepted in the entry field 1002. Alternatively, an addition button 1003 may be used to accept the addition of a business operator to the entry column 1002.

Alternatively, if there is a plurality of businesses from which the personal information was obtained in s13, the value of the comprehensive evaluation information 1266 serving as credibility is above a certain standard, the information sharing support device 100 may The identity of each piece of personal information obtained from business operators is determined, and the majority of personal information is determined to be correct and is subject to subsequent processing.

Alternatively, the information sharing support device 100 determines whether the update date of the personal information in the information reliability information 1265 is fresher than a certain standard (for example, the difference from the current date and time) among the businesses from which the personal information was obtained in s13. (within the standard number of days), the personal information obtained from the most fresh business among them will be determined to be correct and will be subject to subsequent processing. This viewpoint regarding freshness is further taken into consideration for businesses whose comprehensive evaluation information 1266 value is above a certain standard, and information obtained from businesses whose comprehensive evaluation information 1266 value is above a certain standard and whose freshness is above a certain standard. It is also possible to determine that the personal information provided is correct. The same applies to other selections.

Furthermore, as illustrated in the screen 1100 of FIG. 8, by confirming the business operator from which the information is to be obtained as described above by the above-mentioned individual in response to the user terminal 200, the subsequent processing (s14) is performed. It is also possible to make a transition.

Subsequently, the information sharing support device 100 transmits the personal information obtained in s13 to the above-mentioned individual's user terminal 200, accepts the change operation, and temporarily stores the new personal information after the change in the storage device 101. Hold (s14). In the case of the above example, the change operation is for the individual to modify the written content of the address, which is personal information.

In addition, the information sharing support device 100 refers to the service information 1261 of the service information DB 126, and selects businesses for which the above-mentioned individual is not an information provider among the participating companies of the service linked with the index obtained in s10. is specified using the participating organization information 1262 (s15).

In this case, the information sharing support device 100 will identify a participating organization whose identification information of the individual included in the above-mentioned request is not included in the "information provider" column. This participating organization is a business entity that is a candidate for a new provider of the above-mentioned individual's personal information.

Next, the information sharing support device 100 acquires the comprehensive evaluation of the business operator identified in s15 from the participating organization information 1262 or the comprehensive evaluation information 1266, and, for example, selects a business operator that has obtained a comprehensive evaluation above a certain standard. Specify (s16).

However, instead of identifying businesses whose overall evaluation is higher than the standard, businesses may be identified by placing emphasis on the above-mentioned individual's desired event. The phenomenon is at least one of business conditions, attractiveness, and information reliability (freshness).

For example, for an individual who has given an instruction or made a pre-setting on the user terminal 200 that he or she wants to place emphasis on the credibility of the business situation, businesses whose total value of credibility in the business situation information 1263 is higher than the standard are identified. Furthermore, for individuals who have given an instruction or made a pre-setting to place more emphasis on credibility in the attractiveness level credibility, businesses whose total value of credibility in the attractiveness level information 1264 is higher than the standard are identified. In addition, for individuals who have instructed or made a pre-setting to place emphasis on information reliability (freshness), we will identify businesses whose updated date of the relevant personal information in the information reliability information 1265 is later than the reference date. .

Note that in order to reflect individual preferences regarding important events as described above, it is preferable to use the value of the comprehensive evaluation information 1254 in the member information DB 125. In other words, in that case, the information sharing support device 100 refers to the value of the comprehensive evaluation information 1254 of the individual in the member information DB 125, and the total value of the credibility of the important event indicated by the value is equal to or higher than a certain standard ( or the highest value).

Subsequently, the information sharing support device 100 transmits the information on the business operator identified in s16 to the above-mentioned user terminal 200 as information on the candidate recipient of personal information (see screen 1200 in FIG. 9) (s17). The user terminal 200 outputs this information on the provider candidate and presents it to the above-mentioned individual who is the user. This individual confirms the information of the provider candidate and responds to the information sharing support device 100 by operating the user terminal 200 to determine whether or not to approve the provider candidate as the provider of personal information.

The information sharing support device 100 receives, from the user terminal 200, approval/disapproval information regarding the provider candidate provider, and identifies the provider system 300 of the provider indicated by this information as the new provider in steps s11 and s12. The personal information after the change operation held in s14 is distributed to the operator system 300 of a business operator (a business operator for which the above-mentioned individual is already an information provider) (s18), Finish the process.

Although the best mode for carrying out the present invention has been specifically described above, the present invention is not limited thereto and can be modified in various ways without departing from the gist thereof.

According to this embodiment, in a personal information provision infrastructure in which many companies participate, it is possible to efficiently select companies to which personal information is to be provided or used.

The description of this specification clarifies at least the following. That is, in the information sharing support method of the present embodiment, the information processing device stores the rating, finances, information security management system, access scale of the website, and retained personal information of the business operator as the information for credit determination. It is also possible to acquire at least one of the following information: update timing.

According to this, it is possible to accurately select a company to which personal information is to be provided after considering the factors that the personal information provider places importance on regarding the company to which personal information is to be provided. Furthermore, in a personal information provision infrastructure in which many companies participate, it is possible to more efficiently select companies to which personal information will be provided or used.

Further, in the information sharing support method of the present embodiment, the information processing device maintains a search index for personal information held by each business operator, and receives an information request from a terminal of a person who desires to use the personal information. In this case, based on the attributes of the requested information indicated by the information request, each business that holds the corresponding information is identified using the above search index, and the search index is used as a key for the system of the business concerned. a process of executing a search request regarding the requested information, a process of obtaining a search result according to the search request from the system of the business operator, and determining the certainty of the search result using a predetermined algorithm. However, a process of responding to the terminal with likely search results may be further executed.

According to this, the search and use of personal information can be made secure and efficient in an environment where personal information is not held in the information sharing support device but in each business operator's system. Furthermore, in a personal information provision infrastructure in which many companies participate, it is possible to more efficiently select companies to which personal information will be provided or used.

In the information sharing support device of the present embodiment, the computing device may update the rating, finances, information security management system, website access scale, and retained personal information of the business as the information for credit determination. It is also possible to obtain information on at least one of the following.

Further, in the information sharing support device of the present embodiment, the storage device holds a search index for personal information held by each business operator, and the calculation device retrieves information from a terminal of a person who wishes to use the personal information. When a request is received, based on the attributes of the requested information indicated by the information request, each business entity that possesses the corresponding information is identified using the above search index, and the above search index is sent to the system of that business entity. A process of executing a search request regarding the requested information using an index as a key, a process of obtaining a search result according to the search request from the system of the business operator, and a process of determining the certainty of the search result by a predetermined value. It is also possible to further perform a process of making a determination using an algorithm and sending a likely search result to the terminal.

1 Network 10 Information sharing support system 100 Information sharing support device 101 Storage section 102 Program 103 Memory 104 Arithmetic section 105 Communication section 125 Member information DB
1251 Personal basic information 1252 Preference information 1253 Subscription service information 1254 Comprehensive evaluation information 126 Service information DB
1261 Service information 1262 Participating organization information 1263 Management status information 1264 Attractiveness information 1265 Information reliability information 1266 Comprehensive evaluation information 200 User terminal 300 Business system

Claims (6)

The information processing device
With respect to each business entity participating in the personal information provision platform, information for credit determination is acquired from the system of the business entity or from a prescribed external device and retained in a storage device,
Among the information for credit evaluation, the credit score is related to the event desired by the personal information provider, and the credit score obtained from the rating agency for each item related to the event is totaled, and the credit score for each business entity is determined by A process for determining the total value ;
A process of selecting a business operator to be a candidate for providing personal information based on the specified total value of credit score ;
a process of notifying the information of the selected business operator to the terminal of the personal information provider;
An information sharing support method characterized by carrying out. The information processing device
Obtaining at least one of the following information: the business's rating, finances, information security management system , and website access scale as the information for the credit judgment;
The information sharing support method according to claim 1, characterized in that: The information processing device
Maintains a search index of personal information held by each business operator,
If we receive an information request from the terminal of a person who wishes to use personal information,
Based on the attributes of the requested information indicated by the information request, each business entity that possesses the corresponding information is identified using the above search index,
A process of executing a search request regarding the requested information using the search index as a key to the system of the business operator;
a process of acquiring search results in response to the search request from the system of the business operator;
A process of determining the probability of the search result using a predetermined algorithm and responding to the terminal with the probability of the search result;
2. The information sharing support method according to claim 1, further comprising performing: A storage device that holds information for credit judgment regarding each business entity participating in the personal information provision infrastructure;
Among the information for credit evaluation, the information is related to the event desired by the provider of personal information, and the credit score obtained from the corporate rating agency for each item related to the event is totaled, and the above-mentioned information is calculated for each business entity. A process of specifying the total value of creditworthiness , a process of selecting a business operator to be a candidate for providing personal information based on the specified total value of creditworthiness , and a process of selecting a business operator to be a candidate for providing personal information, a computing device that executes a process of notifying the provider's terminal;
An information sharing support device comprising: The arithmetic device is
As the information for the credit judgment, at least any of the following information is obtained: the business's rating, financial status , information security management system , and access scale of the website;
5. The information sharing support device according to claim 4. The storage device is
Maintains a search index of personal information held by each business operator,
The arithmetic device is
If we receive an information request from the terminal of a person who wishes to use personal information,
Based on the attributes of the requested information indicated by the information request, each business entity that possesses the corresponding information is identified using the above search index,
A process of executing a search request regarding the requested information using the search index as a key to the system of the business operator;
a process of acquiring search results in response to the search request from the system of the business operator;
A process of determining the probability of the search result using a predetermined algorithm and responding to the terminal with the probability of the search result;
5. The information sharing support device according to claim 4, wherein the information sharing support device further executes the following.

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