JP6809768B1 - Questionnaire data management / analysis system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a management / analysis system of questionnaire data in which the responding user owns the answer data. SOLUTION: In a questionnaire data management system, a user terminal 4 for a user to receive a questionnaire through an internet line and transmit the answer contents, and a user who answers the questionnaire to the user via the internet line. A server that stores the answer data sent from the terminal 4 and encrypted with the user's encryption key, a blockchain layer 3 that records the hash value of the answer data, and an application 2 that analyzes and analyzes the answer data. including. The application 2 unlocks the encryption key, temporarily downloads the answer data to the answer database, executes data processing according to the purpose, and then deletes the answer data only when the user permits the use. [Selection diagram] Fig. 1

Description

The present invention relates to a questionnaire data management system, and more particularly to a database-type questionnaire platform in which a user has ownership of the answer contents (answer data) answered using a user terminal.

A mechanism for conducting a questionnaire using a smartphone or PC owned by a monitor (hereinafter referred to as a user) using an internet line has been known for a long time, and a typical mechanism is configured as follows. ing. First, the company or local government (questionnaire requester) who wants to conduct a questionnaire asks the survey company that actually conducts the questionnaire survey, and the requested survey company creates a questionnaire according to the purpose and uses it for the user. Deliver to the terminal via the Internet line.

The user who receives the questionnaire on the terminal answers on the terminal and sends the result to the survey company. The contents answered by the user are accumulated in the database of the survey company, and the survey company gives the user points or the like as a reward for answering the questionnaire and sends it to the terminal. The points given can be exchanged for cash or gift certificates. After that, the research company aggregates the response data of the questionnaire and provides the analysis result to the client. Normally, the personal information of the user is excluded from the data provided by the research company to the client.

In addition, a system that uses blockchain technology to give tokens to questionnaire respondents as rewards for answers and to convert the rewards given in the form of tokens into virtual currency is also envisioned. The system makes it possible to set monetary items as incentives to answer questionnaires, and it is also possible to set rewards in detail.

However, even with the system using the above blockchain technology, the client eventually requests the research company and delivers the questionnaire to the target users (monitors) of the research company that received the request. The flow of answering the questions and providing the results to the client is the same.

In such a conventional system, the personal information (gender, age, family structure, address, etc.) of the respondent user is held by the survey company that conducts the questionnaire, and the cost for the client to request the survey company. Since (brokerage fee) is required, the reward given to the respondents will be reduced. Furthermore, respondents, similar question transmitted from a plurality of other research companies, for example with respect to the personal information, to be the same every time answer Narazu, was very troublesome.

In addition, the client can only grasp the contents of the answer at the time of the answer of the respondent, and cannot acquire the time-series data of how the taste has changed from the past.

In addition, the client will get better results by asking a research company that has many monitors, so we will ask the research company that operates the platform used by many users. As a result, these companies are in a state of oligopolizing the survey market.

Japanese Unexamined Patent Publication No. 2007-279772 JP-A-2019-067119 JP-A-2015-092335

An object of the present invention is to solve various problems related to the above-mentioned conventional questionnaire survey using a user terminal, and to activate the convenience of the user, the convenience of the client, and the questionnaire survey market.

Means to solve problems

In order to solve the problem of the above-mentioned prior art, the present invention is a questionnaire response data management / analysis system in which the responding user owns the response data, and the user receives the questionnaire through the Internet line. However, the user terminal for transmitting the answer content and the content of the answer to the questionnaire are transmitted from the user terminal via the Internet line, and the answer content is encrypted by the public key encryption method as the answer data. The user terminal and the server are included in the blockchain layer, including a server for accumulating, a blockchain layer for recording a hash value of the answer data, and an application for analyzing and analyzing the answer data recorded on the server. When the user is connected and consents to the disclosure of the answer data, the user terminal downloads the encrypted answer data from the server, and the user terminal uses the private key managed by the user terminal to download the answer data. Was decrypted, and the restored response data was encrypted using the public key of the application recorded in the blockchain layer and transmitted to the application, and the application was encrypted transmitted from the user terminal. decodes the reply data by the secret key, when said hash value recorded in the block chain layer matches the hash value calculated in the application temporarily stores the reply data related decrypted, to the answer data It is characterized in that data processing according to the purpose is executed, and after the data processing is completed, the encrypted reply data transmitted from the user and the decrypted reply data are deleted.

According to the present invention having the above configuration, the response data of the user who responded to the questionnaire is owned by the user, stored in the server in a state of being encrypted with the user's public key, and encrypted using the public key cryptosystem. The hash value of the converted answer data is recorded on the blockchain to manage it secretly, and only when the user consents to use it, the application restores the answer data and temporarily saves it, and the client Data processing can be executed according to the purpose of.

Further, according to one embodiment of the present invention, when the hash value of the encrypted response data transmitted from the user terminal matches the hash value calculated by the application, the application sends the user terminal to the user terminal. On the other hand, by giving a reward consisting of a predetermined token or point or virtual currency, the incentive of the user who responds can be increased.

Further, according to another embodiment of the present invention, the application can reduce the labor and cost related to the contract with the user by executing the contract with the user by the smart contract.

Further, according to another embodiment of the present invention, the client obtains a result based on the reliable data by further including an algorithm for analyzing the reliability of the answer data stored in the server. be able to.

Further, according to another embodiment of the present invention, the application cannot illegally use the rights owned by the user by deleting the decrypted response data after executing the data processing according to the purpose. The interests of the user can be guaranteed.

Further, according to another embodiment of the present invention, the application creates a new questionnaire and transmits the new questionnaire to the user terminal via an internet line to obtain new response data that can be analyzed. It is possible to continue to accumulate, obtain changes in the user's taste in chronological order by comparing with past answer contents, and sell the answer contents to the same question to multiple questionnaire companies and clients. it can.

Schematic diagram of the entire system according to the embodiment of the present invention The figure which shows the flow of accumulating the response data by the user which concerns on embodiment of this invention. The figure which shows a series of flow until the client which concerns on embodiment of this invention accesses the answer data of a user. The figure which shows a series of flow until the analysis result by DMP which concerns on embodiment of this invention reaches a client. The figure which shows an example of the flow of the scene which uses the smart contract which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail. It should be noted that the embodiments described below are merely examples for explaining the present invention, and the present invention is not limited to the embodiments, and the present invention is subject to various modifications as long as the gist of the present invention is not deviated. It is possible.

FIG. 1 is a schematic diagram of an overall picture that is the basis of a database-type questionnaire platform that owns the response data consisting of the contents answered by the user (monitor to be the questionnaire).

As shown in the figure, the configuration of the entire system includes a database layer 1 built on a server, an application layer 2 for operating this system, an application layer 3, and a user terminal 4.

In the database layer 1, the response data (information on the response content) of the questionnaire by the user is stored in a state of being encrypted by the public key cryptosystem. Public key cryptography in cryptography always has a private key and a public key. The private key is also called a private key, and there is a pair of public keys (public keys). The data protected by public key cryptography is the content of the user's answer, and the bibliographic data such as question items is not encrypted. Further, the hash value of the encrypted response data is recorded in the blockchain layer 3. The application layer 2 that operates this system is constructed and operated by, for example, a company that operates a distributed personal data marketplace (hereinafter referred to as DMP), and connects the user and the requester of the questionnaire (hereinafter referred to as client 5). It plays a role.

A hash value is a list of alphanumeric characters encrypted using a hash function, and the hash value calculated from certain data is always the same, and if the data content is even slightly different, it will be a completely different hash value. Has the feature that is calculated. As a result, if the data has been tampered with, different hash values are calculated, so that the response data can be made reliable.

As described above, the response data of the questionnaire is encrypted by the public key cryptosystem, and is stored in the database layer 1 in a state of being encrypted by the public key. The private key is stored by the user, and unless the user permits, the information cannot be restored with the private key and the response data of the questionnaire cannot be confirmed. In addition, if some tags are attached when the response data is stored in the database layer 1, the number of respondents to the questionnaire, attributes (gender, age group, etc.), implementation time, etc. can be browsed.

As described above, since the user manages the private key corresponding to the public key on the database layer 1 by himself / herself, it is possible for the user to take ownership of the answer data, and the survey conducting company can take the user's answer data. Compared to the conventional method of holding a database, it is possible to protect high security and privacy.

FIG. 2 shows the flow of accumulating the response data by the user. The encrypted response data is stored in the database layer 1 in the server, and the hashed response data is recorded on the blockchain layer 3 . At that time, the structure of the answer data management can be simplified by associating with the ID information of the user who is also hashed, and the answer data is falsified by recording the answer data on the blockchain layer 3. Can be made more difficult.

FIG. 3 shows a series of flow until the client 5 accesses the user's response data. First, the five client companies that want to know the user's preference and the like search and browse the already registered answer data via the application layer 2 operated by the DMP, and investigate whether or not there is the desired answer data.

At this time, as described above, since the answer contents by the user are protected by public key cryptography, the entire contents of the answer data cannot be viewed, but since the question items can be viewed, the client 5 is required. Determine if there is data.

When the client 5 has a question item that he / she wants as information, he / she requests DMP to collect and analyze the answer data regarding the question item. Upon receiving the request, the DMP applies for the access right to the response data to the user terminal 4 via the application layer 2. When the user confirms the application and is satisfied with the reward incentive such as tokens obtained when the viewing is permitted, the user permits the viewing from the user terminal 4. When the permission is obtained, the DMP gives a reward to the user terminal 4. The source of the reward is a part of the amount requested by the client 5 to the DMP.

FIG. 4 shows a series of steps until the analysis result by DMP reaches the client 5. As described above, the response data by the user is stored on the database layer 1 by using the public key cryptosystem. Then, when the client 5 is satisfied with the reward presented and consents to the disclosure of the answer contents, the encrypted answer data is transmitted from the database layer 1 to the user and restored with the private key managed by the user. To do. After that, the response data is further encrypted using the DMP public key and transmitted to the application layer 2.

The application layer 2 restores the answer data with the managed private key and obtains the original data. The target object required by the client 5 is analyzed from the original data. The original data is not transmitted before the application layer 2, and only the analysis result data is transmitted to the client 5. In addition, in order to protect the confidentiality of the client 5, the public key may be used for encryption and transmission. In this case, the client 5 that receives the encrypted data obtains the data of the analysis result by using the private key that it manages. Further, when the data transmission of the analysis result is completed, the application layer 2 guarantees the protection of the user's answer information by setting up a program to delete the collected answer data.

FIG. 5 shows an example of a flow of a scene in which the smart contract 6 is used in the present invention. When collecting a large number of respondents, it is conceivable to ask influencers and institutions that have followers for the target group to affiliate. Therefore, the client 5 requests the affiliate side to attract customers via the application layer 2, grasps the number of people who have participated in the questionnaire through the information spread there, and determines the payment amount according to the number of customers. Program on smart contract 6.

As a result, it is possible to make an accurate payment according to the effect of the promotion, instead of determining the reward amount by guessing the one whose advertising effect is uncertain. In addition, the smart contract 6 technology automates part of the procedure to obtain the questionnaire data required by the client 5, establishing a user's data ownership and building a more convenient questionnaire platform. It becomes possible to do.

In addition, according to the above configuration, even if the influencer has a small influence, it is possible to obtain a large amount of data as an aggregate of the influencers, so that many platforms do not have many monitors in advance. Monitors can be collected and the survey market can become more competitive and revitalized. In other words, even on a small platform that does not have many monitors, by using this system, it becomes possible to monetize the members that it owns.

The smart contract means that the contract contents are automatically executed by the program. If the manager defines the contract in advance, the confirmation of the contract conditions and the fulfillment when the conditions are met are automatically executed. By executing the smart contract 6 on the blockchain layer 3, the risk of the contract being tampered with is extremely low, and human failure can be prevented without human intervention. In addition, by automating the contract transaction process using this technology, it is possible to eliminate the need for an intermediary and reduce labor costs. On the other hand, it is difficult to define contracts with smart contract 6 that require unclear content or detailed interpretation, and it is difficult to apply conventional contracts to this program as they are, but the contract content to be used. It is possible to deal with this by making the above simple.

Further, if necessary, the consistency of the user's answer can be ranked by another algorithm in order to confirm whether the answer data stored in the database layer 1 is a serious answer. By this ranking, the quality of the answer content (quality of the respondent) can be expressed, and it is possible to evaluate whether or not the answer content is a serious answer.

According to one embodiment of the present invention having the above configuration, unlike the conventional method of implementation by a questionnaire survey company, the user's response data is not held by the questionnaire survey company but by the user himself / herself. By establishing protection and accumulating the answer contents in database layer 1, it is possible to save the trouble of answering the same question twice and collect basic data and taste data that can be analyzed in a personalized time series. It will be possible. Further, by using the smart contract 6, the cost to be paid to the intermediary can be reduced, and the cost can be reduced by automating the execution of the contract.

Further, encrypted answer data is accumulated in the database layer 1, and the private key for restoring the data is malicious because it adopts a decentralized management method owned by the user himself. The risk of theft of response data by an external organization can be reduced.

For example, when a third party attempts to steal the response data, the following two methods can be considered. The first method is to steal the private key data held by the user, search for the encrypted information corresponding to each on the database layer 1, and restore the information one by one. The other is when the DMP is attacked while creating the analysis data and the original data is stolen. However, since personal data is meaningful only when it exists in large quantities, it is meaningless to launch an attack on individual data. In addition, the safety of this system, which stores the original data only for a short time when the analysis data is created, is extremely higher than that of the database layer 1 which possesses all the original data as in the conventional case. As a result, the security of data management and the cost of management can be reduced compared to the conventional client-server model.

According to one embodiment of the present invention, since the public key cryptosystem of the encryption technology is used to create an environment in which the user owns the ownership of his / her own answer data, it is possible to protect privacy at a high level, and the current situation is It is very effective for requests for strengthening personal information protection such as GDPR, and for regulations on retaining personal information more than necessary.

Further, according to one embodiment of the present invention, the data of the questions and answers of the questionnaire conducted in the past is stored in the database layer 1 (the past answer data is also stored, and new answer data is additionally stored. ) By doing so, it is possible to eliminate double answers to the same question, reduce the burden of answering respondents, increase the number of answers per person, and as a result, more questionnaires than before in the entire questionnaire market. Answer information can be obtained.

Further, according to one embodiment of the present invention, it is possible to observe the response data of the respondents in chronological order, which was not possible with the conventional purchase data or cluster analysis in which data at only one point is collected. It is possible to observe how the person's tastes have changed over time and whether or not they have changed. As a practical example, in digital marketing strategy planning, we used to think of consumers as a group to capture behavioral lines, but by being able to follow the tastes of each user, we have a completely personalized marketing strategy. Can be hit.

Further, according to one embodiment of the present invention, the client 5 has paid a large amount of intermediary fees to a questionnaire research company which is an intermediary organization and an institution having a large number of monitors, but using the smart contract 6 By automating contracts, we can effectively utilize the users of small affiliates, and by creating a decentralized mechanism for common questionnaires, we can significantly reduce the scale and workload of intermediaries, and the overall cost. Can be lowered. Secondary use of response data can also contribute to cost reductions, more resources are available to survey respondents, and more incentives for respondents will enable more data to be collected across the industry.

Further, according to one embodiment of the present invention, in the conventional system, only the parameter of the monitor held by the research company is known, and the number of responses actually obtained is unknown until the implementation, but the client 5 , The required questionnaire data can be searched and the quantity can be confirmed in advance, and the effect of conducting the questionnaire can be grasped in advance to some extent.

Further, according to one embodiment of the present invention, the user can register all data (purchase data, GPS data, search history, diagnostic data, etc.) related to himself / herself, and if there is an application from the client 5, all of them can be registered. It is also the best way to manage personal information because you will be able to add value yourself. You can choose not to register the data that you do not want to give out personally. In addition, since the user owns the response data, the user can freely select the destination, such as registering but not providing information to the company.

In the conventional system, since the client 5 and the questionnaire respondent who is the user have a relationship of only one point each time, there is no way to confirm whether the respondent really answered seriously, and an appropriate and meaningless answer was given. However, according to one embodiment of the present invention, it is possible to extract only the response data of a person with a high questionnaire value who answered seriously by comparing with the past response results.

1 Database layer 2 Application layer 3 Blockchain layer 4 User terminal 5 Client 6 Smart contract

Claims (6)

This is a questionnaire response data management / analysis system in which the responding user owns the response data.
A user terminal for the user to receive a questionnaire and send an answer through an internet line,
A server in which the contents of the questionnaire are transmitted from the user terminal via the Internet line, and the contents of the answers are stored as answer data encrypted by public key cryptography.
A blockchain layer that records the hash value of the answer data,
Includes an application that is recorded on the server and analyzes and analyzes the response data.
The user terminal and the server are connected to the blockchain layer.
When the user consents to the disclosure of the answer data, the user terminal downloads the encrypted answer data from the server and obtains the encrypted answer data.
The user terminal decrypts the answer data with a managed private key, encrypts the restored answer data with the public key of the application recorded in the blockchain layer, and transmits the restored answer data to the application.
The application decrypts the encrypted response data transmitted from the user terminal with the private key, and when the hash value recorded in the blockchain layer matches the hash value calculated by the application, the decryption is performed. The answer data is temporarily saved, data processing is executed for the answer data according to the purpose, and the encrypted answer data sent from the user after the data processing is completed and the decrypted answer. Delete data,
Questionnaire data management and analysis system. When the hash value of the encrypted response data transmitted from the user terminal matches the hash value calculated by the application, the application gives a predetermined token or point or virtual currency to the user terminal. Give a reward consisting of
The questionnaire data management / analysis system according to claim 1, characterized in that. The application executes a contract with the user by a smart contract.
The questionnaire data management / analysis system according to claim 1 or 2. Further including an algorithm for analyzing the reliability of the answer data stored in the server.
The questionnaire data management / analysis system according to any one of claims 1 to 3, characterized in that. The application deletes all the downloaded response data after executing data processing according to the purpose.
The questionnaire data management / analysis system according to any one of claims 1 to 4, wherein the questionnaire data is managed and analyzed. The application creates a new questionnaire and sends the new questionnaire to the user terminal via an internet line.
The questionnaire data management / analysis system according to any one of claims 1 to 5, wherein the questionnaire data is managed and analyzed.