JP5529072B2 - Information distribution system and information distribution method - Google Patents

Description

  The present invention relates to an information distribution system and an information distribution method.

  Service information provided by a service provider represented by a local government is accumulated, and the service information is sent to a user who matches the service provision conditions (for example, attributes such as age) of the service information (for example, pension information). A mechanism for automatic distribution has been provided. For example, in Patent Document 1, user information is input by the residents themselves, and corresponding local government service information is notified.

JP 2004-348446 A

  When the service provider is a local government and the user is a resident, if you want to notify the service information to a resident who matches the usage conditions of a public service, you can determine whether the resident matches the service provision conditions. In some cases, there is a lack of information only with the resident information input by the resident itself or the resident information of one local government. For this reason, it is necessary to determine the service provision conditions using information of public users managed by other administrative institutions or public institutions. As a method of obtaining necessary user information, it is possible to collect information from each organization in one place and manage it centrally. However, data linkage between systems is necessary, and many users are concerned about information leakage. .

  In view of the above problems, an object of the present invention is to provide services to users who match service provision conditions using public user information managed by each institution without centrally managing user information. An object is to provide an information distribution system and an information distribution method capable of automatically distributing information.

  The information distribution system according to the present invention has a user terminal used by a service user, service information provided to the user, and a service condition for presenting the service information for each attribute item. A service providing server; a plurality of user information holding servers that hold user information of the user for each attribute item; and obtaining the service information and the service conditions from the service providing server, and using the service conditions An information distribution server that provides the service information to a user, wherein the information distribution server requests a list of users that satisfy the service condition from the plurality of user information holding servers. The plurality of user information holding servers themselves hold the user information among the attribute items included in the service conditions. Search for users who satisfy the service condition, and send the list of searched users to the information distribution server, and the information distribution server obtains the usage acquired from the plurality of user information servers. A user who provides the service information is extracted based on a list of users and the service condition, and the service information is provided to the extracted user.

  Each user information holding server manages use permission information of the user information for each attribute item of each user, and a request for a list of users satisfying the service condition is received from the information distribution server. If there is, among the attribute items included in the service condition, for the attribute item that owns the user information, the service condition is satisfied only for the user who is permitted to use the attribute item. It is preferable to search for the user.

  The user information holding server further includes an ID conversion server, and the user information holding server requests the ID conversion server to perform ID conversion when transmitting the list of users to the information distribution server. An ID conversion reception ID is transmitted to each user information holding server, each user information holding server transmits the ID conversion reception ID to the information distribution server, and the information distribution server includes the ID conversion reception ID. It is preferable that the ID conversion server transmits a list of converted user IDs to the information distribution server based on the ID conversion reception ID.

  The information distribution method according to the present invention has a user terminal used by a service user, service information provided to the user, and a service condition for presenting the service information for each attribute item. A service providing server; a plurality of user information holding servers that hold user information of the user for each attribute item; and obtaining the service information and the service conditions from the service providing server, and using the service conditions An information distribution method comprising: an information distribution server that provides the service information to a user, wherein the information distribution server includes a plurality of user information holding servers that satisfy the service condition. A step of requesting a list, and the plurality of user information holding servers among the attribute items included in the service condition For the attribute item that owns the user information, searching for a user that satisfies the service condition, transmitting a list of the searched users to the information distribution server, and the information distribution server, Based on the list of users acquired from the plurality of user information servers and the service conditions, a step of extracting users who provide the service information, and providing the service information to the extracted users And a step.

  In addition, each user information holding server manages the use permission information of the user information for each attribute item of each user, and a list of users satisfying the service condition from the information distribution server. When there is a request, among the attribute items included in the service condition, with respect to the attribute item that owns the user information, only the user who permits the use of the attribute item is the target service condition. And searching for the user that satisfies

  The information distribution system further includes an ID conversion server, and each user information holding server requests the ID conversion server to perform ID conversion when transmitting the list of users to the information distribution server; The ID conversion server transmits an ID conversion reception ID to each user information holding server; and the user information holding server transmits the ID conversion reception ID to the information distribution server; The information distribution server transmits the ID conversion reception ID to the conversion server, and the ID conversion server transmits a list of converted user IDs to the information distribution server based on the ID conversion reception ID. Preferably comprising the steps of:

  According to the information distribution system and the information distribution method of the present invention, it is possible to use the public user information managed by each institution without unifying management of user information, and to match the service provision conditions to users. On the other hand, service information can be automatically distributed.

It is a figure which shows schematic structure of the information delivery system which concerns on 1st Embodiment. It is a figure which shows an example of the information which a service information table holds. It is a figure which shows an example of the information which a service condition table holds. It is a figure which shows an example of the information which a delivery user information table holds. It is a figure which shows an example of the information which a delivery information table holds. It is a figure which shows an example of the information which A server of a user information holding server holds. It is a figure which shows an example of the information which B server of a user information holding server holds. It is a figure which shows an example of the information which C server of a service provision server holds. It is a figure which shows an example of the information which D server of a service provision server holds. It is a figure which shows the registration sequence of user information. It is a figure which shows an example of a user information registration screen. It is a figure which shows the registration sequence of use permission information. It is a figure which shows an example of a use permission information registration screen. It is a figure which shows the processing sequence of the information delivery system which concerns on 1st Embodiment. It is a figure which shows an example of a user list request | requirement. It is a figure which shows an example of a user list response. It is a figure which shows schematic structure of the information delivery system which concerns on 2nd Embodiment. It is a figure which shows an example of the information which an ID conversion reception table holds. It is a figure which shows an example of the information which an ID conversion table holds. It is a figure which shows an example of the information which a server ID correspondence table holds. It is a figure which shows the process sequence of the information delivery system which concerns on 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram showing a schematic configuration of an information distribution system according to the first embodiment of the present invention. The information distribution system includes an information distribution server 10, a user information holding server 30, a service providing server 40, and a user terminal 50. Each server (10, 30, 40) and the user terminal 50 are connected to the Internet. Or the like. In the drawing, the user information holding server 30, the service providing server 40, and the user terminal 50 are shown as one device, but the information distribution system includes the user information holding server 30, the service providing server 40, A plurality of user terminals 50 can be provided. In particular, in the present embodiment, the user information holding server 30 is the two servers A server (server ID = 0021) and B server (server ID = 0022), and the service providing server 40 is the C server (server ID = 0031). ) And D server (server ID = 0032) will be described as existing in the information distribution system.

  The information distribution server 10 is a server that distributes service information to the user terminal 50, and manages a user's distribution address and service information collected from the service providing server 40. The information distribution server 10 includes a communication unit 11 that transmits and receives various data via the network 60, a control unit 12 that performs processing related to information distribution, a service information table 18, a service condition table 19, and a distribution user information table. 20 and a distribution information table 21. The control unit 12 has a service information requesting unit 13 that requests service information and service conditions from a plurality of service providing servers 40, and a list of users that match the conditions of each attribute item for the collected service conditions. A user list requesting unit 14 for requesting the server 30, a distribution user extracting unit 15 for extracting a user matching the service condition from the collected user list, and a distribution information generating unit for generating distribution information to the user 16 and a distribution information transmitting unit 17 that searches the distribution address of the extracted user and transmits the distribution information to the distribution address.

  FIG. 2 is a diagram illustrating an example of information held in the service information table 18. The service information table 18 holds a server ID of the service providing server 40, a service ID for identifying a service, service information, and service information details.

  FIG. 3 is a diagram illustrating an example of information held in the service condition table 19. The service condition table 19 holds a server ID of the service providing server 40, a service ID, an attribute item, and an attribute condition. As shown in the figure, conditions for providing each service (service ID) are set for each attribute item.

  FIG. 4 is a diagram illustrating an example of information held in the distribution user information table 20. The distribution user information table 20 holds a user ID and a distribution address.

  FIG. 5 is a diagram illustrating an example of information held in the distribution information table 21. The distribution information table 21 holds the user ID, the server ID of the service providing server 40, the service ID, and the date and time.

  The user information holding server 30 is a server that holds user information (held user information). The user information holding server 30 includes a communication unit 31 that transmits and receives various data via the network 60, a control unit 32 that performs processing related to the holding user information, and a holding use that manages the holding user information for each attribute item. User information table 35 and use permission information (use permission information table 36 for whether or not use in the information distribution service is permitted for each attribute item of the user information), and the operator registers the possessed user information. And an administrator terminal 37. The control unit 32 refers to the possessed user information table 35 and the use permission information table 36 in response to a request from the information distribution server 10, and among the users permitted to use the attribute item, the condition of the attribute item The possessed user information acquisition unit 33 that acquires a list of user IDs that match the user ID, and the retained user information transmission unit 34 that transmits the list of user IDs to the information distribution server 10.

  FIG. 6 is a diagram illustrating an example of information held by the A server that is the user information holding server 30. In the possessed user information table 35 of the A server, a user ID, and name, age, gender, address, and income amount are registered as attribute items. In addition, a user ID, an attribute item, and a use permission flag are registered in the use permission information table 36 of the A server.

  FIG. 7 is a diagram illustrating an example of information held by the B server that is the user information holding server 30. In the possessed user information table 35 of the B server, the user ID, name, and disease are registered as attribute items. In addition, a user ID, an attribute item, and a use permission flag are registered in the use permission information table 36 of the B server.

  As shown in FIGS. 6 and 7, in the possessed user information table 35 of the user information possessing server 30, different attribute items are registered for each server. On the other hand, the format of the use permission information table 36 is different for each server. It is common.

  The service providing server 40 is a server that holds information related to services provided to the user terminal 50. The service providing server 40 includes a communication unit 41 that transmits / receives various data via the network 60, a control unit 42 that performs processing related to service provision, a service information table 45 that stores service information, and service conditions (service information And a service condition table 46 for managing user attribute conditions to be provided. The control unit 42 includes a service information acquisition unit 43 that acquires service information and service conditions in response to a request from the information distribution server 10, and a service information transmission unit 44 that transmits service information and service conditions to the information distribution server 10. Have.

  FIG. 8 is a diagram illustrating an example of information held by the C server which is the service providing server 40. In the service information table 45 of the C server, a service ID, service information, and service information details are registered. In the service condition table 46 of the C server, a service ID, an attribute item, and an attribute condition are registered.

  FIG. 9 is a diagram illustrating an example of information held by the D server which is the service providing server 40. In the service information table 45 of the D server, a service ID, service information, and service information details are registered. In the service condition table 46 of the D server, a service ID, an attribute item, and an attribute condition are registered.

  As shown in FIGS. 8 and 9, the formats of the service information table 45 and the service condition table 46 of the service providing server 40 are common to each server, and registered information has different values for each server.

  The user terminal 50 is connected to the network 60 and has a function of receiving distribution of service information from the information distribution server 10 and registering use permission information in the user information holding server 30 by a user operation. It is.

  Hereinafter, the operation of each component will be described together with the processing sequence.

(User information registration process)
For information distribution by the information distribution system, it is necessary to register user information in the retained user information table 35 of the user information retaining server 30. FIG. 10 is a processing sequence when the administrator terminal 37 registers user information in the user information holding server 30. The administrator terminal 37 requests a user information registration screen from the user information holding server 30 by the operation of the system administrator or the like (step S101). The user information holding server 30 transmits a user information registration screen in response to a request from the administrator terminal 37 (step S102). FIG. 11 is a diagram illustrating an example of a user information registration screen. The administrator terminal 37 accepts input of user information for each attribute item by the operation of the system administrator (step S103), and transmits the user information to the user information holding server 30 (step S104). The user information holding server 30 registers the received user information in the held user information table 35 (step S105).

(Usage information registration process)
Further, for information distribution by the information distribution system, it is necessary to register the use permission information in the use permission information table 36 of the user information holding server 30. FIG. 12 is a processing sequence when the user terminal 50 registers the use permission information in the user information holding server 30. The user terminal 50 requests the use permission information registration screen from the user information holding server 30 by a user operation (step S201). The user information holding server 30 transmits a use permission information registration screen in response to a request from the user terminal 50 (step S202). FIG. 13 is a diagram illustrating an example of the usage permission information registration screen. The user terminal 50 receives input of usage permission information by the user's operation (step S203), and transmits the usage permission information to the user information holding server 30 (step S204). The user information holding server 30 registers the received use permission information in the use permission information table 36 (step S205).

  FIG. 14 is a flowchart showing information distribution processing of the information distribution system according to the first embodiment. The service information requesting unit 13 of the information distribution server 10 requests service information and service conditions from each service providing server 40 (C server 40C and D server 40D) (step S301). The service information acquisition unit 43 of each service providing server 40 receives service information (eg, subsidy application for disease) and service conditions (that is, attribute conditions of a user who wants to provide service information) from the service information table 45 and the service condition table 46, respectively. , Example: address = ** city, age = ** under age, disease = asthma, income amount = less than *** yen), and the service information transmission unit 44 obtains service information and service conditions from the information distribution server 10 (Steps S302 and S303). The service information request unit 13 of the information distribution server 10 assigns the server ID of the service providing server 40 to the acquired service information and service conditions, and registers them in the service information table 18 and the service condition table 19 respectively (step S304).

  The user list requesting unit 14 of the information distribution server 10 requests each user information holding server 30 (A server 30A and B server 30B) individually for a list of users that match the attribute conditions (step S305). . FIG. 15 is a diagram illustrating an example of a user list request from the information distribution server 10 to each user information holding server 30. As shown in the figure, the user list request is a service condition represented by structured data such as XML, and an attribute condition corresponding to each attribute item is described. The possessed user information acquisition unit 33 of each user information possessing server 30 matches the attribute condition for the attribute items possessing the user information in the retained user information table 35 in response to a request from the information distribution server 10. The user who performs the search is searched (steps S306 and S307). The possessed user information acquisition unit 33 refers to the use permission information table 36 and excludes users who are not permitted to disclose the attribute items from the search target. As a result, only the user IDs that permit the disclosure of the attribute items and that match the conditions are extracted. Note that the user attribute value itself is not extracted. Further, the information distribution server 10 does not need to manage what attribute items each user information holding server 30 accumulates. The possessed user information transmission unit 34 of each user information possessing server 30 transmits to the information distribution server 10 a list of users who satisfy the attribute condition of each attribute item possessed by itself (steps S308 and S309). FIG. 16 is a diagram illustrating an example of a user list response from each user information holding server 30 to the information distribution server 10. As illustrated, the user list response includes a server ID, an attribute item used for the search, and a list of user IDs. For example, since the A server 30A holds user information of the attribute item of the address and the income amount among the attribute items included in the user list request (service condition) in FIG. The user ID of the user who satisfies the attribute condition of the attribute item is included in the user list response (FIG. 16A). Further, since the B server 30B holds user information of the attribute item “disease” among the attribute items included in the user list request (service condition) in FIG. 15, the attribute condition of the attribute item “disease” is satisfied. The user ID of the user is included in the user list response (FIG. 16B).

  The distribution user extraction unit 15 of the information distribution server 10 searches the distribution user information table 20 for a user ID included in the user list response (step S310). The distribution user extraction unit 15 uses the searched user ID and the list of user IDs for each attribute item acquired from each user information holding server 30 to identify the user who satisfies the service condition of each service providing server 40. The user ID is extracted, and the user ID, the server ID of the service providing server 40, and the service ID are registered in the distribution information table 21 (step S311). The distribution information generation unit 16 acquires the distribution address of the user registered in the distribution information table 21 from the distribution user information table 20. The distribution information transmitting unit 17 searches the service information table 18 by using the server ID and service ID of the service providing server 40 registered in the distribution information table 21, acquires the service information details, and mails the distribution message as a distribution message. Etc. (step S312). The user terminal 50 receives service information such as e-mail and displays a message including each service information on the screen (step S313).

  Thus, according to the present embodiment, the information distribution server 10 requests a list of users who satisfy the service conditions from the plurality of user information holding servers 30, and the plurality of user information holding servers 30 Among the attribute items included in the conditions, for the attribute items for which the user owns the user information, a user who satisfies the service condition is searched, a list of searched users is transmitted to the information distribution server 10, and the information distribution server 10 Extracts a user who provides service information based on a list of users acquired from a plurality of user information servers 30 and service conditions, and provides service information to the extracted user (user terminal 50). To do. As a result, service information can be automatically distributed to users who match the service provision conditions using public user information managed by each organization without centrally managing user information. . That is, according to the present embodiment, each user information holding server 30 that is operated by an administrative organization or public institution and stores user information and the information distribution server 10 that distributes service information to users are individually provided. Manage the database. Here, since the information distribution server 10 manages only the distribution address of the user, there is no possibility that the information of each organization is concentrated in one place of the information distribution server 10.

  In addition, each user information holding server 30 manages use permission information of user information for each attribute item of each user, and when there is a request for a list of users satisfying the service condition from the information distribution server 10, Among the attribute items included in the service condition, for the attribute item for which the user owns the user information, the user who satisfies the service condition is searched for only the user who is permitted to use the attribute item. As a result, users who are not permitted to publish attribute items are excluded from the search target, and only the IDs of users who permit the publishing of attribute items and match the conditions are extracted. .

(Second Embodiment)
In the first embodiment, it is assumed that the information distribution server 10, the user information holding server 30, and the service providing server 40 manage the same user with a common user ID. The second embodiment relates to an information distribution system when the information distribution server 10, the user information holding server 30, and the service providing server 40 manage users individually using independent user IDs. .

  FIG. 17 is a diagram showing a schematic configuration of an information distribution system according to the second embodiment of the present invention. The information distribution system according to the second embodiment is obtained by adding an ID conversion server 70 to the information distribution system according to the first embodiment. In addition, the description which abbreviate | omitted the component to which the same referential mark as 1st Embodiment attached | subjected has the same function as 1st Embodiment.

  The ID conversion server 70 is a server that manages the correspondence between user IDs individually managed by the information distribution server, the user information holding server 30 and the service providing server 40. When the user ID is transmitted and received between the servers, the ID conversion server 70 In addition, the user ID of the transmission source server is converted into the user ID of the reception destination server. The ID conversion server 70 includes a communication unit 71 that transmits and receives various data via the network 60, a control unit 72 that performs processing related to ID conversion, an ID conversion reception table 76, an ID conversion table 77, and a server ID correspondence table. 78. The control unit 72 includes an ID conversion request receiving unit 73, an ID conversion unit 74, and a post-conversion ID transmission unit 75.

  FIG. 18 is a diagram illustrating an example of information held in the ID conversion reception table 76. The ID conversion reception table 76 holds an ID conversion reception ID, a server ID, and a pre-conversion ID.

  FIG. 19 is a diagram illustrating an example of information held in the ID conversion table 77. The ID conversion table 77 holds an integrated user ID that uniquely identifies a user of the information distribution system, and a user ID 1, a user ID 2, and a user ID 3 that are different user IDs for each server.

  FIG. 20 is a diagram illustrating an example of information held in the server ID correspondence table 78. The server ID correspondence table 78 holds a server ID and a corresponding user ID.

  FIG. 21 is a flowchart showing information distribution processing of the information distribution system according to the second embodiment. Here, the processes with the same step numbers as those in the flowchart according to the first embodiment are the same as those in the first embodiment, and the description thereof is omitted. For example, as illustrated, processes similar to those in the first embodiment are performed in steps S301 to S307.

  After acquiring the user list, the A server 30A, which is the user information holding server 30, sends a list of server IDs (for example, 0021) and pre-conversion IDs (for example, 54321, 98765, and 76543) to the ID conversion server 70. Transmitting and requesting ID conversion (step S401). The ID conversion request reception unit 73 of the ID conversion server 70 issues an ID conversion reception ID (for example, 0001), transmits the ID conversion reception ID to the A server 30A that is the user information holding server 30, and stores the ID conversion reception table 76 in the ID conversion reception table 76. The conversion acceptance ID, the server ID of the A server 30A, and the pre-conversion ID are registered (step S402). The A server 30A, which is the user information holding server 30, transmits the server ID, the ID conversion acceptance ID, and the attribute item used for the search to the information distribution server 10 (step S403).

  The B server 30B which is the user information holding server 30 also performs the ID conversion process similar to the A server 30A. That is, after acquiring the user list, the B server 30B transmits a list of server IDs and pre-conversion IDs to the ID conversion server 70, and requests ID conversion (step S404). The ID conversion request reception unit 73 of the ID conversion server 70 issues an ID conversion reception ID and transmits it to the B server 30B. In the ID conversion reception table 76, the ID conversion reception ID, the server ID of the B server 30B, The pre-conversion ID is registered (step S405). The B server 30B transmits the server ID, the ID conversion reception ID, and the attribute item used for the search to the information distribution server 10 (step S406).

  Next, the information distribution server 10 transmits the server ID and ID conversion reception ID received from each user information holding server 30 to the ID conversion server 70, and requests the converted ID (step S407).

  The ID conversion request reception unit 73 of the ID conversion server 70 refers to the ID conversion reception table 76 from the received ID conversion reception ID (for example, 0001) in response to a request from the information distribution server 10, and converts the ID before conversion (for example, , 54321, 98765, 76543) and a user information holding server ID (for example, 0021). Next, the ID conversion unit 74 refers to the ID conversion table 77 and the server ID correspondence table 78, and manages user IDs (for example, 1234567, 1234) managed by the information distribution server 10 (server ID = 0001) corresponding to the pre-conversion ID. 2345678, 3456789) (step S408). The ID conversion server 70 performs similar ID conversion not only on the A server 30A but also on the B server 30B. The post-conversion ID transmission unit 75 transmits the obtained list of post-conversion IDs to the information distribution server 10 (step S409).

  The information distribution server 10 performs distribution user extraction processing based on the converted user ID list and distributes service information to the user terminal 50 (steps S310 to S313).

  Thus, according to the present embodiment, each user information holding server 30 requests ID conversion from the ID conversion server 70 when transmitting a list of users to the information distribution server 10, and the ID conversion server 70 The ID conversion reception ID is transmitted to each user information holding server 30, each user information holding server 30 transmits the ID conversion reception ID to the information distribution server 10, and the information distribution server 10 receives the ID conversion reception ID. The ID conversion server 70 transmits a list of converted user IDs to the information distribution server 10 based on the ID conversion reception ID. Thereby, even when the information distribution server 10, the user information holding server 30, and the service providing server 40 individually manage users using independent user IDs, users that satisfy the service condition are extracted. Service information can be provided.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, functions included in each member, each means, each step, etc. can be rearranged so as not to be logically contradictory, and a plurality of means, steps, etc. can be combined or divided into one. Is possible.

DESCRIPTION OF SYMBOLS 10 Information delivery server 11 Communication part 12 Control part 13 Service information request part 14 User list request part 15 Delivery user extraction part 16 Delivery information generation part 17 Delivery information transmission part 18 Service information table 19 Service condition table 20 Delivery user information Table 21 Distribution information table 30 User information holding server 31 Communication unit 32 Control unit 33 Holding user information acquisition unit 34 Holding user information transmission unit 35 Holding user information table 36 Usage permission information table 37 Administrator terminal 40 Service providing server DESCRIPTION OF SYMBOLS 41 Communication part 42 Control part 43 Service information acquisition part 44 Service information transmission part 45 Service information table 46 Service condition table 50 User terminal 60 Network 70 ID conversion server 71 Communication part 72 Control part 73 ID conversion request reception part 74 ID conversion Unit 75 post-conversion ID transmission unit 76 ID conversion acceptance table 77 ID conversion table 78 server ID correspondence table

Claims (6)

A user terminal used by the user of the service;
A service providing server that holds service information to be provided to the user and holds service conditions for presenting the service information for each attribute item;
A plurality of user information holding servers that hold the user information of the user for each attribute item;
An information distribution system comprising: an information distribution server that acquires the service information and the service conditions from the service providing server and provides the service information to a user that satisfies the service conditions,
The information distribution server requests a list of users that satisfy the service condition from the plurality of user information holding servers,
The plurality of user information holding servers search for a user that satisfies the service condition for an attribute item that owns the user information among the attribute items included in the service condition, and the searched use A list of persons to the information distribution server,
The information distribution server extracts a user who provides the service information based on the list of users acquired from the plurality of user information servers and the service conditions, and provides the service to the extracted users. An information distribution system characterized by providing information. Each user information holding server is
Managing the usage permission information of the user information for each attribute item of each user,
When there is a request for a list of users that satisfy the service condition from the information distribution server, among the attribute items included in the service condition, the attribute item that owns the user information is The information distribution system according to claim 1, wherein the user who satisfies the service condition is searched for only the user who is permitted to use. An ID conversion server;
Each user information holding server requests the ID conversion to the ID conversion server when transmitting the list of users to the information distribution server,
The ID conversion server transmits an ID conversion reception ID to each user information holding server,
Each user information holding server transmits the ID conversion acceptance ID to the information distribution server,
The information distribution server transmits the ID conversion reception ID to the conversion server,
The information distribution system according to claim 1, wherein the ID conversion server transmits a list of converted user IDs to the information distribution server based on the ID conversion reception ID. A user terminal used by the user of the service;
A service providing server that holds service information to be provided to the user and holds service conditions for presenting the service information for each attribute item;
A plurality of user information holding servers that hold the user information of the user for each attribute item;
An information distribution method in an information distribution system comprising: an information distribution server that acquires the service information and the service conditions from the service providing server and provides the service information to a user that satisfies the service conditions,
The information distribution server requesting a list of users who satisfy the service condition from the plurality of user information holding servers;
The plurality of user information holding servers searching for a user satisfying the service condition for an attribute item of which the user information is held among the attribute items included in the service condition; and the search Sending a list of users to the information delivery server;
The information distribution server extracts a user who provides the service information based on the list of users acquired from the plurality of user information servers and the service conditions; Providing the service information. An information distribution method comprising: Each user information holding server is
Managing use permission information of the user information for each attribute item of each user;
When there is a request for a list of users that satisfy the service condition from the information distribution server, among the attribute items included in the service condition, the attribute item that owns the user information is The information distribution method according to claim 4, further comprising: searching for the user who satisfies the service condition only for the user who is permitted to use. The information distribution system further includes an ID conversion server,
When each of the user information holding servers transmits the list of users to the information distribution server, the ID conversion server is requested to perform ID conversion;
The ID conversion server transmitting an ID conversion acceptance ID to each user information holding server;
Each of the user information holding servers transmitting the ID conversion acceptance ID to the information distribution server;
The information delivery server transmitting the ID conversion acceptance ID to the conversion server;
The information distribution method according to claim 4, further comprising a step in which the ID conversion server transmits a list of converted user IDs to the information distribution server based on the ID conversion reception ID.