JP2003067314A - Information distribution system, server and control method for server - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide information to a client in the Internet or the like with high responsiveness. SOLUTION: In this system, user IDs identifying respective users and items of acquisition information required by the respective users are correspondingly stored in an information DB 17A and an Intranet DB 19B. An information server 16A decides the item of the acquisition information that is a target transferred to an Intranet server 18B from the information server 16A on the basis of storage contents of the information DB 17A. The acquisition information stored in the information DB 17A is transferred to the intranet server 18B from the information server 16A on the basis of the decided item of the acquisition information. The Intranet server 18B stores the transferred acquisition information in the Intranet DB 19B. The acquisition information of the items required by the respective users of the clients 22 is transmitted on the basis of the storage contents of the Intranet DB 19B.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an information distribution system,
The present invention relates to a server and a server control method, for example, an information delivery system capable of delivering information to a client with good response in an intranet or the like, and a server and a server control method therefor.

[0002]

2. Description of the Related Art Groupware is software intended to improve the work efficiency of a group by promoting communication and information sharing within the group, and in recent years, many organizations have become standard software in LAN environments. It has been introduced by the (Intranet) and has become an indispensable software for daily work.

[0003]

Since the groupware is software frequently used by users, if it becomes possible to provide the information required by each user, it is expected that the overlooking of the information will be reduced. To be done.

The present invention has been made in view of the above problems, and an object of the present invention is to store information required by each client user in a server such as groupware in advance so that the client user can store the information. The present invention provides an information distribution information system capable of providing information with good response, a server used therefor, and a control method thereof.

[0005]

In order to solve the above problems, an information distribution system according to the present invention comprises a first server,
A second server communicable with the first server, and one or more clients communicable with the second server, for receiving at the client acquisition information obtained at the first server. is there. In this information distribution system, first acquisition information storage means for storing acquisition information is provided in the first server.

[0006] Further, a necessary item storage means for storing user identification information for identifying each user of the client and an item of acquisition information required by each user of the client in association with each other, and the necessary item storage means. Transfer target item determining means for determining an item of acquisition information to be transferred from the first server to the second server, and an item of acquisition information determined by the transfer target item determining means based on the stored content of Based on the above, the acquisition information transfer means for transferring all or part of the acquisition information stored in the first acquisition information storage means from the first server to the second server is, for example, the first or second. Provided on the server.

Furthermore, second acquisition information storage means for storing the acquisition information transferred from the first server to the second server by the acquisition information transfer means, the necessary item storage means and the second acquisition information storage means. Distribution information generating means for generating, to each user of the client, distribution information including all or part of acquisition information of items required by the user based on the stored contents of Distribution information transmitting means for transmitting the distribution information to the client to the user corresponding to the distribution information is provided in the second server.

According to the present invention, the user identification information and the item of the acquisition information are stored in the necessary item storage means in association with each other, and the information to be transferred from the first server to the second server is acquired based on the stored contents. Information items are determined. Then, based on the determined item of acquisition information, all or a part of the acquisition information stored in the first acquisition information storage means provided in the first server is transferred to the second server, and the second information is transferred to the second server.
It is stored in the second acquisition information storage means provided in the server. In the second server, based on the stored contents of the necessary item storage means and the second acquisition information storage means, distribution information including all or part of the acquisition information of the items required by the user is generated for each user of the client. To do. Then, the distribution information is sent to the client addressed to the corresponding user.

According to the present invention, the information required by each user of the client can be stored in advance in the second server, and the information can be provided to the user of the client with good response. Further, of the acquisition information stored in the first acquisition information storage means, only the information required by each user of the client is
By transferring from the server to the second server, it becomes possible to reduce communication traffic between the first server and the second server.

It is desirable that the client can communicate with the second server via the local area network. This allows the second server to immediately send the delivery information to the client. It is also preferable that the second server is an intranet server and the intranet is composed of the second server and the client.

Further, according to one aspect of the present invention, the transfer target item determining means transfers a union of items of acquisition information required by each user of the client from the first server to the second server. Decide on the item of information to be acquired. By so doing, it is possible to eliminate duplication in the items of acquisition information transferred from the first server to the second server, so that it is possible to further reduce communication traffic between the first server and the second server. Become.

[0012] Further, in one aspect of the present invention, the acquisition information transfer means stores the latest acquisition information among the items of the acquisition information determined by the transfer target item determination means in the second acquisition information storage means. Those that are not yet stored are determined every predetermined time, and the determined acquisition information is transferred from the first server to the second server. This way, the first
It is possible to eliminate unnecessary information transfer between the server and the second server. Further, when new acquisition information is stored in the first acquisition information storage means, the first server acquires the second acquisition information within a predetermined time.
Since it will be transferred to the server, the freshness of the distribution information can be maintained.

In this aspect, the system further comprises necessary item updating means for updating the stored content of the necessary item storage means, and the transfer target item determining means updates the stored content of the necessary item storage means. From the first server to the second server, based on the stored content of the necessary item storage unit later.
The item of acquisition information to be transferred to the server is re-determined, and the acquisition information transfer means, when the item of acquisition information to be transferred is re-determined, among the items of acquisition information to be re-determined, The latest acquisition information may be determined as not yet stored in the second acquisition information storage means, and the determined acquisition information may be transferred from the first server to the second server. In this way, when there is a change in the item of acquisition information required by a user or when the number of client users increases or decreases, the item of acquisition information to be transferred from the first server to the second server is immediately selected. You will be able to decide again. Further, among the acquisition information of the re-determined items, the latest acquisition information that is not yet stored in the second acquisition information storage means can be immediately transferred from the first server to the second server. Like As a result, the freshness of the distribution information can be maintained.

Further, the server according to the present invention is a server for transferring the acquisition information to another server capable of communicating with one or more clients, and an information storage means for storing the acquisition information and each user of the client. Based on the necessary item acquisition means for acquiring the necessary acquisition information item and the acquisition information item acquired by the necessary item acquisition means,
Based on a transfer target item determining unit that determines an item of acquisition information to be transferred to the other server, and an item of acquisition information determined by the transfer target item determining unit,
Acquisition information transfer means for transferring all or part of the acquisition information stored in the acquisition information storage means to the other server.

The server control method according to the present invention is
A method of controlling a server for transferring obtainment information to another server capable of communicating with one or more clients, comprising: storing the obtainment information in a storage means; and obtaining information items required by each user of the client. Based on the required item acquisition step to be acquired and the items of acquisition information to be acquired,
Based on the step of determining the item of the obtained information to be transferred to the other server, and based on the determined item of the obtained information, all or a part of the obtained information stored in the storage unit is changed to the other item. Transferring to a server.

According to the server of the present invention, the acquisition information is transferred to another server that can communicate with one or more clients. At this time, the item of acquisition information required by each user of the client is acquired, and the item of acquisition information to be transferred is determined based on the item. Then, based on the determined item of acquisition information, all or part of the acquisition information storage means acquisition information is transferred to the other server. By doing so, it becomes possible to reduce communication traffic by transferring only the acquisition information stored in the storage means that each user of the client needs.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the overall configuration of an information distribution system according to an embodiment of the present invention. The information delivery system 10 shown in the figure is a LAN (Local Area Network) 20.
And Internet 14. The LAN 20 includes a plurality of clients 22 and an intranet server 1.
8B is connected. The client 22 is configured by a known personal computer system including a display, a CPU, an input device, etc.
eb browser is installed. This allows
You can freely access the internet site and intranet site.

The intranet server 18B is composed of a known server computer system including a display, a CPU, an input device, etc., and particularly provides the user of the client 22 with the Web version groupware. There is. This groupware provides various services such as schedule management, bulletin board, address book, and ToDo list to the client 22 in the WWW (World Wide Web) format in accordance with HTTP (Hyper Text Transfer Protocol). , A web browser is started to activate a predetermined URL (Uniform Resource Loc) of the intranet server 18B.
You can use these services by entering ator).

The intranet server 18B is provided with an intranet database 19B constituted by a hard disk storage device, for example, and the client 22 instructs various information relating to each function of groupware such as schedule management, bulletin board, address book, and ToDo list. It can be registered and read according to.

Further, the intranet server 18B prevents the computer on the Internet 14 from freely accessing the computer on the LAN 20,
Each client 22 has a function for allowing various sites on the Internet 14 to be freely accessed, that is, a so-called proxy function.

In the information delivery system 10, the LAN 20, the client 22, the intranet server 18B and the intranet database 19B form an intranet.

The groupware usable on the intranet is specifically realized by a CGI (Common Gateway Interface) program stored in the intranet server 18B, and this program is, for example, a CD-ROM, It is installed in the intranet server 18B via an information storage medium such as a DVD-ROM or installed in the intranet server 18B via a communication line such as the Internet 14. The intranet server 18B has http
d (HTTP Daemon) is installed, a Web browser is started on the client 22, and by accessing the CGI program from there, W for various services provided by the groupware.
The eb page is displayed on the client 22.

An intranet server 18B, a plurality of information providing terminals 12, and an information server 16A are connected to the Internet 14. The information server 16A includes an information database 17A composed of, for example, a hard disk storage device. The information providing terminal 12 is a known personal computer system managed by, for example, a news provider such as a newspaper company, a weather information provider, a stock market information provider, or the like, and transmits information from each information providing terminal 12 to the information server 16A. You can do it.

The information server 16A is composed of a known server computer system, and is adapted to receive (obtain) various information from the information providing terminal 12. Then, these pieces of information are processed and stored in the information database 17A. This information (obtained information) is transferred to the intranet server 18B according to the transfer request from the intranet server 18B. At this time, the information server 16A stores items of acquisition information required by each user of the intranet, and
Based on this, items of acquisition information to be transferred to the intranet server 18B are determined. Thus, from the information server 16A to the intranet server 18B
In order to reduce the communication traffic of the Internet 14, only the acquisition information of necessary and sufficient items is transferred. Although not shown in the figure, the Internet 14 is also connected to other intranets, and the information server 16A is configured to transfer only necessary information of necessary and sufficient items to these intranets. .

FIG. 2 is a diagram showing an example of a personal page displayed on the client 22. The personal page 28 shown in the figure is displayed when the client 22 accesses the intranet server 18B to complete the user authentication and the menu selection for displaying the personal page. When the client 22 first accesses the intranet server 18B, a page requesting a user ID and password appears. If a correct user ID and password are entered here, a cookie indicating that the client 22 has been authenticated by the client 22. Is stored. This cookie
After that, from the client 22 to the intranet server 18
Automatically sent each time B is accessed. Thereby, the user authentication can be omitted.

The personal page 28 is generated for each user in the information server 16A and is transmitted from the information server 16A to the client 22. At the top of the page, a personal page like "△△ 's top page" is displayed. The name of the user is displayed, and the schedule of the user and the weather forecast information 24 of the area designated (necessary) by the user are displayed below the name. Further, below that, a news headline (summary) 26 of news items designated (necessary) by the user is displayed. In the information distribution system 10, the client 22 only accesses the intranet server 18 and does not need to access the Internet 14 to access the weather forecast information 2
4 and the headline 26 and other information on the Internet 14 can be browsed.

The contents stored in the information database 17A and the intranet database 19B will be described below.

First, FIG. 3 is a diagram showing the structure of the acquisition information database included in the information database 17A. The obtained information database 30A shown in the figure stores "information code", "summary", "text", and "last updated date" in association with each other. here,
The “information code” stores information for identifying the item of acquisition information acquired from the information providing terminal 12. In this information distribution system 10, one type of acquisition information is associated with one information code. For example, different information codes are assigned to the weather information of Tokyo, the weather information of Osaka, economic news, sports news, and the like. Further, in “summary”, a summary sentence for the acquisition information of the item identified by the corresponding information code is stored. Further, the “text” stores the text of the acquisition information of the item identified by the corresponding information code. Further, the “last updated date and time” is a summary of the obtained information of the item identified by the corresponding information code and the last updated date and time of the text, that is, information is obtained from the information providing terminal 12 and processed to obtain an obtained information database. The date and time registered in 30A is stored. When processing the information obtained from the information providing terminal 12, the style database 38AB (FIG. 7) described later is referred to. In this way, the information server 16A can acquire the summary sentence, the text, and the last update date and time from the acquisition information database 30A by designating the information code.

Next, FIG. 4 is a diagram showing the structure of the necessary item database included in the information database 17A. The necessary item database 32A shown in the figure stores an "intranet ID", a "user ID", and an "information code" in association with each other. here,
The "intranet ID" stores information for identifying the intranet, that is, information for identifying the intranet server 18B. The "user ID" stores information for identifying each user in the intranet identified by the corresponding intranet ID. The "information code" is the corresponding intranet ID.
In the intranet identified by
One or more information codes are stored that identify the items of acquisition information currently needed by the user identified by D. In this way, the information server 16A can acquire the item of acquisition information required by each user of each intranet from the necessary item database 32A by designating the intranet ID and the user ID.

Next, FIG. 5 is a diagram showing the structure of the transfer target item database included in the information database 17A. Transfer target item database 34A shown in FIG.
Stores the “intranet ID” and the “information code” in association with each other. Here, the "intranet ID" stores information for identifying the intranet. The "information code" stores information that identifies the item of acquisition information to be transferred to the intranet (intranet server) identified by the corresponding intranet ID. Specifically, the information server 16A
Derives the union of the information codes stored in the necessary item database 32A in association with the same intranet ID, and stores those information codes (information code group) in the "information code" column of the transfer target item database 34A. I remember. Thus, the information server 16A can acquire the item of acquisition information to be transferred to the intranet identified by the intranet ID by specifying the intranet ID from the transfer target item database 34A.

FIG. 6 is a diagram showing the structure of the final transfer date / time database included in the information database 17A. Last transfer date database 36A shown in FIG.
Is the "Intranet ID", "Information code",
The "last transfer date and time" is stored in association with each other. Here, the "intranet ID" stores information for identifying the intranet. The “information code” stores the items of the acquisition information transmitted up to the present for the intranet identified by the corresponding intranet ID. In the "Last transfer date and time", the acquisition information of the item identified by the corresponding information code,
The date and time of transmission to the intranet (intranet server) identified by the corresponding intranet ID is stored. Thus, in the information server 16A, by specifying the intranet ID and the information code, the date and time when the acquisition information of the information code is last transmitted to the intranet identified by the intranet ID is specified from the final transfer date and time database 36A. Can be obtained.

FIG. 7 is a diagram showing the structure of a style database included in both the information database 17A and the intranet database 19B. The style database 38AB shown in the figure stores "information code" and "style data" in association with each other. Here, all information codes handled by the information distribution system 10 are stored in the “information code”.
The "style data" stores data necessary for processing (extracting the abstract and the text) and displaying the obtained information of the item identified by the corresponding information code. That is, the information to be distributed in the information distribution system 10 includes various types such as weather forecast information, news, stock price information, and various data formats. Therefore, the information server 1
The 6A and the intranet server 18A refer to the style database 38AB to determine how to process or display the obtained information.

FIG. 8 is a diagram showing the structure of the necessary item database included in the intranet database 19B. Required item database 40B shown in FIG.
Stores the “user ID”, the “user name”, and the “information code” in association with each other. here,
The "user ID" stores information for identifying each user on the intranet. In "Username",
The name of the user identified by the user ID is stored. The “information code” stores an information code that specifies an item of acquisition information currently required by the user identified by the user ID. Thus, in the intranet server 18B, by designating the user ID,
From the necessary item database 40B, it is possible to acquire the name of the user identified by the user ID and the item of acquisition information required by the user. The database 40B corresponds to the necessary item database 32A, and the record corresponding to the intranet ID assigned to the intranet server 18B among the records of the necessary item database 32A is stored in the database 40B. It has become.

Further, FIG. 9 is a diagram showing the configuration of the acquisition information database included in the intranet database 19B. Acquisition information database 42 shown in FIG.
B is "information code", "intranet path",
The “summary” is associated and stored. Here, the "information code" stores information for identifying the item of the acquisition information required by any user of the intranet. The “intranet path” stores the path in the intranet server 18B of the obtained information text of the item identified by the information code. The “summary” stores a summary sentence of acquisition information of the item identified by the information code. That is, when the intranet server 18B receives the acquisition information from the information server 16A, the intranet server 18B generates a summary sentence and a text based on the style database 38AB, and stores the summary sentence in the "summary" column of the acquisition information database 42B. . On the other hand, the text is converted into a file and stored in the intranet database 19B, and its path (directory name and file name) is stored in the “intranet path” column of the acquisition information database 42B. In this way, the intranet server 18B can acquire the storage path of the acquisition information of the item identified by the information code and the abstract by specifying the information code from the acquisition information database 42B. . The acquisition information database 42B corresponds to the acquisition information database 30A.

Next, information processing in the information server 16A and the intranet server 18B will be described.

FIG. 10 is a diagram showing a program group installed in the information server 16A. As shown in the figure, an acquisition information transfer program 52A, a necessary item registration program 54A, and an information acquisition program 56A are installed in the information server 16A.

The acquisition information transfer program 52A is a CGI program, and when the intranet server 18B activates the program (when the URL of the program is sent from the intranet server 18B to the Internet 14), it is transferred to the intranet server 18B. The acquisition information of the item to be read is read from the acquisition information database 30A and is returned (when there is no acquisition information to be returned, a null (empty) file is returned). That is, the acquisition information transfer program 52A requests the intranet ID as an argument at the time of startup, and the intranet server identified by this intranet ID acquires necessary items for items that are not yet stored in the intranet server. I try to transfer information. The processing of the acquisition information transfer program 52A will be described later in detail (FIG. 1).
2).

The required item registration program 54A is also C
It is a GI program, and users of each intranet
This is for newly registering or updating the items of acquisition information that one needs. That is, the necessary item registration program 54A has an intranet ID as an argument at the time of activation.
A user ID, an information code related to addition or deletion, and a flag indicating whether addition or deletion is required are requested, and the necessary item database 32 is updated based on those arguments. This required item registration program 54
The process A will also be described in detail later (FIG. 13).

Further, the information acquisition program 56A is also CG
It is an I program and requests new information and an information code as arguments at the time of startup. In this way, when the new information and the information code are transmitted from the information providing terminal 12, the information acquisition program 56A registers the new information and the information code in the acquired information database 30A.

On the other hand, FIG. 11 shows the intranet server 1.
It is a figure which shows the program group installed in 8B. As shown in the figure, the intranet server 18B
The acquisition information transfer request program 62B, the acquisition information database update program 64B, the acquisition information temporary transfer request program 66B, and the distribution information generation program 6
8B and required item database update program 70B
And are installed.

The acquisition information transfer request program 62B is a resident program (Daemon), and activates the acquisition information transfer program 52A installed in the information server 16A every predetermined time, for example, every 15 minutes. In this way, the acquisition information is updated every predetermined time.

The acquisition information database update program 64B is also a resident program, and the acquisition information transmitted from the acquisition information transfer program 52A activated by the acquisition information transfer request program 62B is newly added to a predetermined directory of the intranet server 18B. It monitors whether or not it is stored. Then, if newly acquired information is stored, the style database 38AB
Based on the above, a summary sentence and a body text are generated from the same information, the body text is made into a file, and the intranet database 19
In addition to storing it in a predetermined directory of B, the path of the text and the abstract are stored in the acquisition information database 42B.

Also, the acquisition information temporary transfer request program 6
6B is a CGI program that is started by the necessary item registration program 54A in the information server 16A when it is started, and temporarily starts the obtained information transfer program 52A installed in the information server 16A. As a result, when the required item database 32A is updated, it becomes possible to immediately receive from the information database 17A the acquisition information newly required by the intranet server 18B due to the update.

The distribution information generation program 68B is also C
It is a GI program and the user of the client 22
When the program is started from the eb browser, distribution information (personal page) including access path to part of the obtained information (summary) and the text of the item required by the user is generated and returned. is there. That is,
The distribution information generation program 68B has a user ID when started.
Requesting the user name and information code corresponding to this user ID
While reading from B, the intranet path and the summary sentence corresponding to the read information code are further read from the acquisition information database 42B. Then, while referring to the style database 38AB, the read information is used to generate a personal page for the user.

Further, the required item database update program 70B is a CG started by the required item registration program 54A installed in the information server 16A.
It is an I program and reflects the update contents in the necessary item database 32A in the necessary item database 40B. That is, as will be described later, when updating the necessary item database 32A, the necessary item registration program 54A generates a difference from the old contents as synchronization data, and uses the synchronization data as an argument to execute the necessary item database update program 70B. It is supposed to start.
The item database update program 70B, when activated by the necessary item registration program 54A in this way, updates the necessary item database 40B based on the synchronization data as an argument. In this way, the required item database 32A and the required item database 40B are kept in synchronization.

Now, the processes of the acquisition information transfer program 62B and the necessary item registration program 54A will be described in more detail.

FIG. 12 shows the acquisition information transfer program 62B.
It is a flowchart which shows the process of. As shown in the figure, this program first acquires an intranet ID that is an argument (S101). Then, the information code corresponding to the intranet ID is read from the transfer target item database 34A (S102). Further, the last update date and time T1 corresponding to those information codes is read from the acquisition information database 30A (S103). Next, the final transfer date / time T2 corresponding to the intranet ID acquired in S101 and the information code read in S102 is read from the final transfer date / time database 36A (S104). Then, the last update date and time T1 is checked for an information code newer than the last transfer date and time T2, and the summary sentence and the text corresponding to the information code are read from the acquisition information database 30A (S105). Next, it is checked whether, among the information codes read from the transfer target item database 34A in S102, there is any information code that is not stored in the final transfer date / time database 36A in association with the intranet ID acquired in S101 ( S106). Then, if there is something that is not stored in the last transfer date / time database 36A, the information code will be newly registered by the user, as described later, that was not registered by the user of the same intranet in the necessary item database 32A. Therefore, the summary and the text corresponding to the information code are read from the acquisition information database 30A (S10).
7). Then, the summary sentence and the body text read in S105 and S107 are sequentially output together with the information code (S1).
08). On the other hand, if there is nothing stored in the final transfer date / time database 36A in S106, S1
The processing of 07 is skipped, and the summary sentence and the body read in S105 are sequentially output together with the information code (S10).
8). The information code, the summary sentence, and the body text thus output are transmitted to the intranet server 18B.

Next, FIG. 13 is a flow chart showing the processing of the necessary item registration program 54A. As shown in the figure, this program first acquires an intranet ID, a user ID, an information code, and a flag indicating whether addition or deletion is made, which are arguments (S201). Next, the acquired contents are reflected in the necessary item database 32A (S20).
2). That is, if the flag indicates addition, the information code acquired in S201 is added to the information code stored in the necessary item database 32A in association with the intranet ID and the user ID acquired in S201. to add. On the other hand, if the above flag indicates the deletion, the intranet I acquired in S201 is acquired.
Required item database 3 in association with D and user ID
The information code acquired in S201 is deleted from the information codes stored in 2A.

Further, an HTML file (synchronization data) containing the argument acquired in S201 is created (S203). Then, the necessary item database update program 70B installed in the intranet server 18B is activated using this synchronization data as an argument (S204). Thus, the required item database 32
A is requested to be synchronized with the required item database 40B.
In the intranet server 18B, the necessary item database update program 70B is activated, and the necessary item database 40B is updated based on the synchronization data that is an argument.

Next, the necessary item registration program 54A
The transfer target item database 34A is updated based on the necessary item database 32A updated in S202 (S
205). Specifically, the information code included in each record corresponding to the intranet ID acquired in S201 is read from the necessary item database 32A, and the union thereof is derived. Then, the information code, which is an element of the union, is stored in the transfer target item database 34A in association with the intranet ID acquired in S201. For example, by reading all the information codes corresponding to the intranet ID acquired in S201 from the necessary item database 32A and deleting the duplicate information codes from the information codes, the information codes that are the elements of the union are acquired and It is stored in the transfer target item database 34A.

After that, the necessary item registration program 54A
Requests the acquisition information temporary transfer request program 66B installed in the intranet server 18B to temporarily update the acquisition information database 42B (S206).

According to the information distribution system 10 described above, the information required by each user of the client 22 is stored in advance in the intranet database 19B, and when these users request a personal page, they are immediately stored. You will be able to create and reply to a personal page containing some of the information. Further, of the acquisition information stored in the acquisition information database 30A, only the acquisition information of the items required by the user of the intranet is acquired from the information server 16A to the intranet 18.
Since it is transferred to B, the Internet 14
Communication traffic can be reduced.

It is possible that each client 22 manages the information required by the user and each client 22 independently accesses the information server 16A or the like to receive the information. , So that each client 22 receives the same information.
May overlap and access the information server 16A. On the other hand, according to the information distribution system 10, such a situation can be prevented.

The present invention is not limited to the above embodiment.

For example, although the transfer target item database 34A is provided in the information server 16A in the above embodiment, it may be provided in another computer system, for example, the intranet server 18B. In this case, the information server 16A does not have to manage the transfer target item database 34A.

[0057]

As described above, according to the present invention,
In the second server, the information required by each user of the client can be stored in advance, and information can be provided to the user of the client with good response. Further, among the acquisition information stored in the first acquisition information storage means, only the information required by each user of the client is transferred from the first server to the second server, whereby the first server and the second server are connected. Will be able to reduce the communication traffic between.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of an information distribution system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of an individual page of groupware displayed on a client.

FIG. 3 is a diagram showing a configuration of an acquisition information database (for information server).

FIG. 4 is a diagram showing a configuration of a necessary item database (for information server).

FIG. 5 is a diagram showing a configuration of a transfer target item database.

FIG. 6 is a diagram showing a configuration of a final transfer date / time database.

FIG. 7 is a diagram showing a structure of a style database.

FIG. 8 is a diagram showing a configuration of a necessary item database (for intranet server).

FIG. 9 is a diagram showing a configuration of an acquisition information database (for intranet server).

FIG. 10 is a diagram showing a group of programs executed by an information server.

FIG. 11 is a diagram showing a group of programs executed by the intranet server.

FIG. 12 is a diagram showing processing of an acquisition information transfer program.

FIG. 13 is a diagram showing processing of a necessary item registration program.

[Explanation of symbols]

10 information distribution system, 12 information providing terminal, 14
Internet, 16A information server, 17A information database, 18B intranet server, 19B
Intranet database, 20 local area network, 22 clients, 24 weather forecast information, 26 headlines, 28 personal pages, 30A
Acquisition information database (for information server), 32A required item database (for information server), 34A transfer target item database, 36A final transfer date database, 38AB style database, 40B required item database (for intranet server), 42B
Acquisition information database (for intranet server), 5
2A acquisition information transfer program, 54A required item registration program, 56A information acquisition program, 62B acquisition information transfer request program, 64B acquisition information database update program, 66B acquisition information temporary transfer request program, 68B distribution information generation program, 70B
Required database update program.

Claims (8)

[Claims] 1. Acquisition information obtained by the first server, comprising a first server, a second server communicable with the first server, and one or more clients communicable with the second server. An information distribution system for receiving at the client, the first acquisition information storage unit provided in the first server for storing acquisition information; user identification information for identifying each user of the client; The necessary item storage unit that stores the items of the acquisition information required by each user of the client in association with each other, and the first item based on the stored contents of the necessary item storage unit.
A transfer target item determining means for determining an item of acquisition information to be transferred from the server to the second server, and the first acquisition information storage based on the item of acquisition information determined by the transfer target item determining means. Acquisition information transfer means for transferring all or part of the acquisition information stored in the means from the first server to the second server, and the first server provided in the second server by the acquisition information transfer means. Second acquisition information storage means for storing acquisition information transferred from the second server to the second server, and based on the storage contents of the necessary item storage means and the second acquisition information storage means provided in the second server, Distribution information generating means for generating, for each user of the client, distribution information including all or part of acquisition information of items required by the user; and the second server. An information distribution system, comprising: distribution information transmission means that is provided and that transmits the distribution information generated by the distribution information generation means to the client addressed to the user corresponding to the distribution information. 2. The information distribution system according to claim 1, wherein the client is capable of communicating with a second server via a local area network. 3. The information distribution system according to claim 2, wherein the second server is an intranet server, and the second server and the client compose an intranet. 4. The information distribution system according to any one of claims 1 to 3, wherein the transfer target item determination means sets the union of items of acquisition information required by each user of the client as the first set.
An information distribution system, characterized in that items of acquisition information to be transferred from a server to the second server are determined. 5. The information distribution system according to claim 1, wherein the acquisition information transfer unit has the latest acquisition information among the items of the acquisition information determined by the transfer target item determination unit. An information distribution system characterized by determining, for each predetermined time, information not yet stored in the second acquisition information storage means, and transferring the determined acquisition information from the first server to the second server. 6. The information distribution system according to claim 5, further comprising a necessary item updating unit that updates the storage content of the necessary item storage unit, and the transfer target item determination unit stores the necessary item storage unit. When the contents are updated, the items of the acquisition information to be transferred from the first server to the second server are redetermined based on the updated contents stored in the necessary item storage means, and the acquisition information is obtained. When the item of the acquisition information to be transferred is re-determined, the transfer means has the latest acquisition information among the items of the acquisition information re-determined, which is not yet stored in the second acquisition information storage means. And transferring the determined acquisition information from the first server to the second server. 7. A server for transferring acquisition information to another server capable of communicating with one or more clients, the information storage means storing the acquisition information, and an item of the acquisition information required by each user of the client. A necessary item acquisition unit for acquiring, and a transfer target item determination unit for determining an item of acquisition information to be transferred to the other server, based on an item of acquisition information acquired by the necessary item acquisition unit, Acquisition information transfer means for transferring all or part of the acquisition information stored in the acquisition information storage means to the other server based on the item of acquisition information determined by the transfer target item determination means, A server characterized by including. 8. A method of controlling a server, which transfers acquisition information to another server capable of communicating with one or more clients, the method comprising: storing the acquisition information in a storage means; A necessary item acquisition step of acquiring the item of acquisition information; a step of determining an item of acquisition information to be transferred to the other server based on the acquired item of acquisition information; Transferring all or part of the obtained information stored in the storage means to the other server based on the item, and controlling the server.