JP2005215797A - Terminal device, server, groupware system, groupware method, and groupware program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a load on a management server by dispersively placing an actual file of group common information, which is used in a group, in each user terminal without storing the file in the management server. <P>SOLUTION: A user terminal 11 transmits an updating access starting request to a management server 40. The management server 40 receives the updating access starting request and transmits access permission for accessing the access information of a file to be updated by a terminal 11 and file information (the IP address information of a user terminal in which an actual file to be updated exists, or the like). When receiving the access permission, the user terminal 11 directly accesses (peer-to-peer access) a user terminal (designated with an IP address) which stores the file to be updated, updates the actual file, and then codes access completion information to transmit to the management server 40. The management server 40 updates the access information of the file to be updated to "No access". <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a terminal device, a server, a groupware system, a groupware method, and a groupware program, and in particular, a terminal device, a server, a groupware system, a groupware method, and a groupware method for efficiently managing real files. And Groupware program.

  The technique disclosed in Patent Document 1 has a configuration in which a plurality of client terminals operated by a client and a center server that holds client information are connected via the Internet. In addition, each client terminal connects a client telephone used for communication performed directly between the client terminals without going through the Internet. In this technique, the client information held by the center server includes at least the IP address of the client terminal and the telephone number of the client telephone.

  Also, the client terminal as the communication source terminal accesses the client information of the center server, acquires the IP address and telephone number of the communication destination terminal, and uses the IP address to establish an Internet communication path for communicating with the communication destination terminal. Establish.

JP 2003-209634 A

  The first problem described in Patent Document 1 is that the user of the client terminal cannot have a group.

  This is because a logical group composed of a plurality of client terminals is not formed.

  The second problem is that it is not convenient for the user of the client terminal.

  This is because a file existing in a certain client terminal cannot be accessed from another client terminal when that client terminal is logging out.

  An object of the present invention is to solve the above problems and to realize a system that is easy to use for a user of a client (user) terminal.

  When the first terminal device of the present invention transmits a connection request to a server via an intranet or the Internet and receives a connection permission, the first terminal device transmits a group share information acquisition request of the group to which the first terminal device belongs to the server. Is received from the server and stored in a built-in storage device, and an access start request including a file name is transmitted to the server, and an access permission including an IP address is received from the server. And a second means for accessing another terminal device peer-to-peer via the intranet or the Internet and reading, updating, or deleting an actual file corresponding to the file name in the same group. And

  When receiving a connection request from a terminal device via an intranet or the Internet, the first server of the present invention performs authentication, transmits a connection permission to the terminal device, and receives an acquisition request for group sharing information from the terminal device. When receiving an access start request including a file name from the first means for reading from the storage device containing the group shared information composed of virtual directories and transmitting it to the terminal device, access in the group shared information A second means for referring to the information, transmitting an access permission including an IP address to the terminal device, and setting the access information to “accessing”.

  The first groupware system of the present invention includes one or more first terminal devices and the first server.

  The second terminal device of the present invention is the first terminal device, and upon logout, transmits a request for copying a real file of group shared information held in the storage device to the server, and the server sends an IP When receiving the copy destination information including the address, a third means for accessing the other terminal device by peer-to-peer via the intranet or the Internet by the IP address, and sending a copy end notification to the server, And receiving a connection termination permission from the server, and a fourth means for logging out.

  The second server of the present invention is the first server, wherein upon receiving a copy request for a real file of group shared information from the terminal device, third means for transmitting copy destination information including an IP address; And a fourth means for transmitting a connection end permission to the terminal device when a copy end notification is sent from the terminal device.

  The second groupware system according to the present invention includes one or more second terminal devices and the second server.

  The third groupware system of the present invention is the first or second groupware system, wherein the group sharing information includes a file name directory corresponding to an actual file, and the file name directory is an actual file name directory. It includes file access information and access authority information.

  A third terminal device of the present invention is the second terminal device, characterized in that it has fifth means for dividing information to be transmitted, embedding key data, encrypting it, and transmitting it to the server. To do.

  The third server of the present invention is the second server, and has a fifth means for removing key data from information from the terminal.

  A fourth groupware system according to the present invention includes one or more third terminal devices and the third server.

  In the first groupware method of the present invention, when a terminal device transmits a connection request to a server via an intranet or the Internet and receives a connection permission, the terminal device transmits an acquisition request for group sharing information of the group to which the terminal device belongs. And receiving the group sharing information from the server and storing it in a built-in storage device, and the terminal device transmits an access start request including a file name to the server and grants an access permission including an IP address to the server. The other terminal device is accessed peer-to-peer via the intranet or the Internet by an IP address, and a procedure for reading, updating, or deleting an actual file corresponding to the file name in the same group is provided. It is characterized by including.

  In the second groupware method of the present invention, when a server receives a connection request from a terminal device via an intranet or the Internet, the server performs authentication, transmits a connection permission to the terminal device, and transmits the group sharing information from the terminal device. Upon receiving the acquisition request, a procedure for reading from the storage device containing the group shared information configured by the virtual directory and transmitting it to the terminal device, and when the server receives an access start request including a file name from the terminal device, A step of referring to access information in the group shared information, transmitting access permission including an IP address to the terminal device, and setting the access information to “accessing”.

  The third groupware method of the present invention includes the procedure of the first groupware method and the procedure of the second groupware method.

  A fourth groupware method of the present invention is the first groupware method, wherein when the terminal device logs out, a request for copying a real file of group shared information held in a storage device is sent to the server. Transmitting, receiving copy destination information including an IP address from the server, accessing the other terminal device by peer-to-peer via the intranet or the Internet by the IP address, copying the actual file, and the terminal device copying Transmitting a termination notice to the server and receiving logout permission from the server, and logging out.

  The fifth groupware method of the present invention is the second groupware method, wherein when the server receives a copy request for an actual file of group shared information from the terminal device, copy destination information including an IP address And a procedure for transmitting a connection end permission to the terminal device when the server notifies the terminal device of the copy end.

  The sixth groupware method of the present invention includes the procedure of the fourth groupware method and the procedure of the fifth groupware method.

  The first groupware program of the present invention transmits a connection request to a terminal device via an intranet or the Internet, and upon receiving a connection permission, transmits a group share information acquisition request of the group to which the terminal device belongs to the server. Receiving the group sharing information from the server and storing it in a built-in storage device, transmitting an access start request including a file name to the terminal device, and granting an access permission including an IP address to the terminal device. When receiving from the server, a procedure for accessing another terminal device by IP address via the intranet or the Internet peer-to-peer and reading, updating, or deleting an actual file corresponding to the file name in the same group It is made to perform.

  When the second groupware program of the present invention receives a connection request from the terminal device via the intranet or the Internet, the second groupware program of the present invention performs authentication, transmits a connection permission to the terminal device, and receives the group sharing information from the terminal device. When the acquisition request is received, the group sharing information configured by the virtual directory is read from the storage device built in, and the procedure of transmitting to the terminal device is executed, and the server receives the access start request including the file name from the terminal device. Then, the access information in the group shared information is referred to, an access permission including an IP address is transmitted to the terminal device, and a procedure for setting the access information to “accessing” is executed.

  A third groupware program according to the present invention is the first groupware program, and sends a request for copying a real file of group shared information held in a storage device to the terminal device when logging out to the terminal device. When sending and receiving copy destination information including an IP address from the server, another terminal device is accessed by the IP address peer-to-peer via the intranet or the Internet, and a procedure for copying an actual file is executed. A copy end notification is transmitted to the server, and when a connection end permission is received from the server, a procedure for executing logout is executed.

  The fourth groupware program of the present invention is the second groupware program, and when the server receives a copy request for an actual file of group shared information from the terminal device, the copy destination information including the IP address When the server notifies the end of copying from the terminal device, the server device is caused to execute a procedure of transmitting connection end permission to the terminal device.

  An effect of the present invention is that a terminal device, a server, or a system that is convenient for a user of a client (user) terminal device can be realized.

  Next, a first best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory diagram showing the configuration of a system to which the first best mode for carrying out the present invention is applied.

  Referring to FIG. 1, the first best mode for carrying out the present invention is as follows: user terminal 11, user terminal 12, user terminal 13 of group 01, user terminal 21, user terminal 22 of group 02, group 03, a user terminal 31, a user terminal 32, a user terminal 33, a management server 40, a local network 100 (for example, an intranet), and the Internet 200.

  The user terminal 11, the user terminal 12, the user terminal 21, the user terminal 22, the user terminal 31, and the user terminal 32 are connected to the local network 100. The user terminal 13 and the user terminal 33 are connected to the Internet 200. The management server 40 connects the local network 100 and the Internet 200. As the communication method, for example, the HTTP protocol which is a protocol on TCP / IP is used.

  The user terminal 11, the user terminal 12, the user terminal 21, the user terminal 22, the user terminal 31, and the user terminal 32 are a groupware client (implemented by software) that can be connected to the local network 100 or the Internet 200 via HTTP communication. ) Is implemented. The user terminals 11 to 32 are information processing apparatuses (personal computers or mobile phone terminals) having display screens. All the user terminals 11 to 33 and the management server 40 each have a built-in storage device (memory, hard disk, etc.), and hold various information (for example, group shared information, etc.) in the storage device.

  FIG. 2 is an explanatory diagram showing an authentication confirmation operation.

  Referring to FIG. 2, authentication confirmation from the user terminals 11 to 32 of the local network 100 is performed by inquiring user authentication information in an SSL (Secure Socket Layer) tunnel of HTTP communication. The user authentication information includes, for example, a group ID (identification information indicating a group) and an account (unique to the user terminals 11 to 33). The user terminals 11 to 32 of the local network 100 transmit user authentication information to the management server 40 via SSL. The management server 40 collates the received user authentication information with the user authentication information managed by itself. If the user authentication information matches, the management server 40 updates the user information of the transmission source and distributes the latest group information to the user terminals 11 to 32 of the transmission source.

  The user information includes, for example, IP addresses of the transmission source user terminals 11 to 32 and status information (information indicating the status of the transmission source user terminals 11 to 32 being online, away from the seat, etc.). The group information is, for example, information on a group to which the user terminal 11 to the user terminal 32 belong, and user information and group shared information (shared shared within the group) of other user terminals 11 to 32 in the same group. Information).

  However, if the transmission source is the user terminal 13 or the user terminal 33 on the Internet 200, the management server 40 distributes the IP address for creating a logical group to the transmission source user terminal 13 or the user terminal 33. To do. The groupware client of the source user terminal 13 and the user terminal 33 receives the IP address from the management server 40 and sets the IP address therein.

  FIG. 3 is an explanatory diagram showing an operation of data transfer between the user terminal 12 and the user terminal 13.

  Referring to FIG. 3, the user terminal 13 refers to the group information from the management server 40 after authentication by the management server 40, and stores the group shared information stored in the terminals in the same group (the user terminal 12 The IP address, the file name of the group shared information file storing the group shared information, etc.) are specified, and the status of the group shared information (such as access information from other user terminals) is inquired to the management server 40. If access is possible, the user terminal 13 makes an access permission request for the group shared information to be accessed on a peer-to-peer basis (using the IP address of the user terminal 12) to the user terminal 12 (the target file to be accessed) (For example, the communication protocol is all HTTP communication).

  Upon receiving the access permission request from the user terminal 13, the user terminal 12 refers to the user access authority information of the target file of the group sharing information of the group information in its own storage device, and the user of the user terminal 13 accesses the information If possible, the access permission is transmitted to the user terminal 13. Next, the user terminal 12 updates the access information of the target file, and transmits an access status update request for updating the access status of the group shared information to the management server 40. Upon receiving the access permission from the user terminal 12, the user terminal 13 accesses the target file.

  The groupware clients of the user terminals 11 to 33 display the group sharing information on the screen. In addition, the groupware client enables the user to update, delete, and refer to the group shared information according to the user authority information for each group shared information stored in the group information distributed from the management server 40. Each shared information of the group shared information (stored in each file) includes, for example, information on project progress information in the group, shared documents, individual or group schedule table, shared program, and the like. The groupware client also has a presence function for displaying status information such as when other group users are away or online. The presence function allows the groupware client user to change the status information.

  FIG. 4 is an explanatory diagram showing operations related to security during data transfer.

  Referring to FIG. 4, the groupware client of the user terminal 11 to the user terminal 33 that is the transmission source divides the data to be transmitted, embeds the key data extracted from the key database between the divided data, and performs SSL in packet units. It has a function to send encrypted data. The groupware client and the management server 40 of the user terminals 11 to 33 on the receiving side have a function of performing SSL decryption from the encrypted packet, deleting the key data, and restoring the data. The key data is deleted based on key pattern information indicating whether or not the data in the packet is the key data. The sender groupware client transmits the key pattern information to the receiver groupware client in advance.

  The management server 40 is an information processing apparatus such as a workstation server that stores user information, group information, and the like. The management server 40 has an authentication function for performing authentication confirmation in response to authentication requests from the user terminals 11 to 33 and a function for updating / deleting access authority information for group shared information within a group. Furthermore, the management server 40 receives the status information from the groupware client of the user terminals 11 to 33, and manages the presence information management function for managing the status of the user being away or online, and the user terminals in the group 11 to 11 have a function of transmitting group information to the user terminal 33, a function of message exchange (messaging function), and a function of notifying an exchange destination address of the VoIP function. On the management server 40, group shared information is managed in the form of a virtual directory.

  The user terminals 11 to 33 distribute the latest group information to the user terminals 11 to 33 when the user logs in. Further, the actual file (group file) of the group shared information is held in the user terminals 11 to 33.

  FIG. 5 is an explanatory diagram showing the configuration of the virtual directory.

  Referring to FIG. 5, the virtual directory constitutes a hierarchical structure such as root (B1), group 01, account 10 (terminal unit), group shared information, file name A, and the like. The password (specific to the terminal), IP address (specific to the terminal), status information, access information, and access authority information each include information. The file name A is a directory, but is also the name of the file corresponding to the actual file.

  FIG. 6 is an explanatory diagram showing the relationship between group shared information and actual files.

  Referring to FIG. 6, the file name A and file name B of the group sharing information of the account 10 (corresponding to the terminal 10) of the group 01 represent the real file C2 and the real file C2 that exist in the terminal 10. The terminal 10 is designated by an IP address.

  FIG. 7 is an explanatory diagram showing the configuration of a logical group.

  Referring to FIG. 7, a group across the local network 100 and the Internet 200 is formed.

  8 and 9 are explanatory diagrams showing the dynamic movement of the group shared information when the user terminal 12 logs out (disconnects) and logs in (connects).

  Referring to FIG. 8, for example, when the user terminal 12 of the group 01 tries to log out (disconnect), the management server 40 is a directory of all file names of the group shared information of the account 20 (corresponding to the user terminal 12). For example, the file name C) is moved to any one user terminal (for example, the user terminal 13) that is not logging out. Next, the management server 40 transmits copy destination information (including an IP address) for copying the actual file E1 corresponding to the file name C to the user terminal 13 to the user terminal 12. Upon receiving the copy destination information, the user terminal 12 copies the real file E1 to the user terminal 13 as the real file E2, and after the copy is completed, transmits a copy completion notification to the management server 40 (dynamic creation of a mirror site).

  Referring to FIG. 9, when the user terminal 12 that has copied the actual file (created the mirror site) after logging out within the group logs in again, the management server 40 moves the file moved from the user terminal 12. The name directory (file name C) is returned to the account 20 of the user terminal 12. Next, the management server 40 transmits to the user terminal 13 a request to move / delete the real file E2 under the management of the mirror site (user terminal 13).

  When the user terminal 13 receives a request to move / delete the real file E2, the user terminal 13 overwrites the real file E1 with the real file E1 of the user terminal 12, deletes its own real file E2, and transmits a deletion end to the management server 40 ( Dynamic file management for virtual directories).

  Next, the operation of the first best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 10, FIG. 11, FIG. 12, and FIG. 13 are flowcharts showing the operation of the first best mode for carrying out the present invention. The following operation of the user terminal 11 is performed by the groupware client.

  First, an operation when the user terminal 11 logs in will be described.

  In response to a user instruction, the user terminal 11 encrypts and transmits a login request (connection request) (groupware client user account and password transmission) to the management server 40 via the SSL tunnel (step A1 in FIG. 10).

  When receiving the login request, the management server 40 decrypts the encryption (step A2), and determines the validity of the connection request as user information (information about the user of the groupware client, which is stored in the storage device in advance). To confirm (step A3). When the validity is confirmed, the management server 40 transmits a connection permission (step A4).

  Upon receiving the transmission permission, the user terminal 11 encrypts the group information acquisition request (for the group to which it belongs) and transmits it to the management server 40 (step A5).

  Upon receiving the group information acquisition request, the management server 40 decrypts the encryption (step A6), reads the group sharing information (the group sharing information directory of each account of the group 01 shown in FIG. 5) from the storage device, and stores the stored user. It transmits to the terminal 11 (step A7), and further transmits the connected information indicating that the user terminal 11 is connected to other user terminals (user terminal 12, user terminal 13) in the same group (step A8). Thereafter, whenever a change notification of state information (change to a state such as being away or in a meeting) is transmitted from the user terminal 11 to the management server 40, the management server 40 requests a change of the state information each time. Are transmitted to other user terminals (user terminal 12, user terminal 13) of the same group. The user terminal 11 stores the group shared information from the management server 40 in its own storage device.

  Next, a case where the user terminal 11 updates the group shared information will be described.

  The user terminal 11 transmits an update access start request (including the update target file name) to the management server 40 (step A9 in FIG. 11).

  The management server 40 receives and decrypts the update access start request (step A10). Next, the management server 40 determines whether or not the update target file is being accessed from another user terminal based on the access information of the update target file, and the user terminal 11 holds the update authority based on the access authority information of the update target file. Check whether you are doing. If the user terminal 11 is not accessing from another user terminal and the user terminal 11 holds the update authority, the management server 40 sets the access information of the update target file as “accessing by the terminal 11” (step A11). ). Next, the management server 40 transmits access permission and file information (such as the IP address information of the user terminal where the actual file that is the update target file exists) to the user terminal 11 (step A12).

  Upon receiving the access permission, the user terminal 11 stores the IP address in the storage device, directly accesses the user terminal (specified by the IP address) holding the update target file (access by peer-to-peer), and stores the actual file. Update (step A13). Next, the user terminal 11 encrypts and transmits the access end information to the management server 40 after the access ends (step A14).

  Upon receiving the access end information, the management server 40 decrypts the encryption (step A15), and updates the access information of the update target file from “accessing by the terminal 11” to “no access” (step A16).

  Further, in the case of message exchange (messaging function) between the user terminals 11 to 13 or communication by the VoIP function, there is no access permission to the management server 40 and the user terminals 11 to 11 whose status is online. Direct access to the terminal 13 by peer-to-peer (similar to step A13). Also in this case, the communication data is encrypted.

  Next, an operation when the user terminal 11 logs out will be described.

  When the user terminal 11 holds a real file of group shared information, the user terminal 11 transmits a real file copy request to the management server 40 to create a mirror site of the real file (FIG. 12). Step A17).

  When receiving the copy request, the management server 40 decrypts the encryption (step A18), encrypts the copy destination information (including the IP address), and transmits it to the user terminal 11 (step A19). The copy destination indicates a user terminal that is in the same group as the user terminal 11 that issued the copy request and is logged in (connected). For example, the management server 40 also randomly selects a copy destination.

  The user terminal 11 decrypts the copy destination information (step A20). Next, the user terminal 11 copies the actual file to the copy destination user terminal 13 by peer-to-peer (step A21). Next, the user terminal 11 encrypts the copy end notification and transmits it to the management server 40 (step A22).

  When the management server 40 receives the copy end notification, it decrypts it (step A23). Next, the management server 40 moves the file name directory of the group share information to the copy destination group share information (step A23).

  Next, the user terminal 11 encrypts the connection end permission and transmits it to the management server 40 (step A24).

  The management server 40 decrypts the connection end permission (step A25), transmits the connection end of the user terminal 11 to the other user terminals (user terminal 12, user terminal 13) in the same group (step A27), and ends the connection. The permission is transmitted to the user terminal 11 (step A28).

  Thereby, the user terminal 11 is connected.

  Next, the operation of deleting group shared information will be described.

  FIG. 13 is a flowchart showing an operation of deleting group shared information.

  The user terminal 11 encrypts the group share information deletion request (including the file name of the deletion target file) and transmits it to the management server 40 (step A29 in FIG. 13).

  When receiving the group share information deletion request, the management server 40 decrypts the encryption (step A30). Next, the management server 40 checks the access information and access authority information of the deletion target file of the group shared information (step A31). If the access information of the deletion target file is not “accessing” and the user terminal 11 holds the deletion authority, the management server 40 permits the deletion of the target file and the actual file information (IP address of the deletion target file). (Including) is transmitted to the user terminal 11 (step A32).

  Upon receiving the target deletion permission, the user terminal 11 accesses the user terminal 12 in which the deletion target file exists by peer-to-peer and deletes the actual file of the deletion target file (step A33). Next, the user terminal 11 encrypts and transmits the deletion end information to the management server 40 (step A34).

  The management server 40 decrypts the deletion end information (step A35), deletes the file name of the deletion target file of the group sharing information, and updates the group sharing information (step A36). Next, the management server 40 transmits the updated group sharing information to the user terminal 12 and the user terminal 13 (step A37).

  Next, an operation in which the user terminal 11 browses an actual file existing in the user terminal 12 will be described.

  The user terminal 11 browses the actual file of the user terminal 12 instead of updating in step A13 of FIG. The other operations are the same as those in FIG. However, the access information is being browsed and is not used for access permission.

  Next, the operation for exchanging messages and voice (VoIP) will be described.

  Since group sharing information is not handled, message exchange is performed peer-to-peer between user terminals (user terminal 11, user terminal 12, user terminal 13) whose status information is online.

  Next, a second best mode for carrying out the present invention will be described in detail with reference to the drawings.

  The second best mode for carrying out the present invention is a method including a step in which the user terminals 11 to 13 and the management server 40 execute the processes of FIGS. 10 to 13.

  Next, a third best mode for carrying out the present invention will be described in detail with reference to the drawings.

  The third best mode for carrying out the present invention is a program for causing a computer (user terminal 11 to user terminal 13, management server 40) to execute the steps of FIGS.

  As described above, the present invention has an effect that the load on the management server 40 is reduced.

  The reason is that the real file of group shared information used in the group is not held in the management server 40 but distributed to each user terminal 11 to user terminal 33, and between the user terminals 11 to 33 is peer-to-peer. It is because it accesses.

  Further, since the data to be transferred is divided and key data is embedded between the divided data (see FIG. 4), there is an effect that security is improved.

  Further, there is an effect that each user terminal 11 to user terminal 33 can easily access the actual file via the Internet 200 and the local network 100.

  This is because the management server 40 holds a virtual directory of group shared information based on a logical group, and manages the existence and authentication of real files.

  Further, by dynamically moving the group sharing information real file, even when a certain user terminal 11 to user terminal 33 is not connected to the local network 100 or the Internet, sharing of group information sharing within the group is possible. This is possible and has the effect of improving work efficiency.

It is explanatory drawing which shows the structure of the system by which the 1st best form for implementing this invention is applied. It is explanatory drawing which shows the operation | movement of authentication confirmation. It is explanatory drawing which shows the operation | movement of the data transfer between user terminals. It is explanatory drawing which shows the operation | movement regarding the security at the time of data transfer. It is explanatory drawing which shows the structure of a virtual directory. It is explanatory drawing which shows the relationship between group shared information and a real file. It is explanatory drawing which shows the structure of a logical group. It is explanatory drawing which shows the dynamic movement of group shared information when the user terminal 12 logs out and logs in. It is explanatory drawing which shows the dynamic movement of group shared information when the user terminal 12 logs out and logs in. It is a flowchart which shows operation | movement of the 1st best form for implementing this invention. It is a flowchart which shows operation | movement of the 1st best form for implementing this invention. It is a flowchart which shows operation | movement of the 1st best form for implementing this invention. It is a flowchart which shows operation | movement of the 1st best form for implementing this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 User terminal 12 User terminal 13 User terminal 21 User terminal 22 User terminal 21 User terminal 31 User terminal 32 User terminal 33 User terminal 40 Management server 100 Local network 200 Internet

Claims (20)

When a connection request is transmitted to the server via the intranet or the Internet and connection permission is received, a group share information acquisition request of the group to which the user belongs is transmitted to the server, and the group share information is received from the server, and a built-in memory First means for storing in the apparatus;
When an access start request including a file name is transmitted to the server and an access permission including an IP address is received from the server, the other terminal apparatus is accessed peer-to-peer via the intranet or the Internet by the IP address, A second means for reading, updating, or deleting an actual file corresponding to the file name;
The terminal device characterized by having. When a connection request is received from a terminal device via an intranet or the Internet, authentication is performed, a connection permission is transmitted to the terminal device, and when a group sharing information acquisition request is received from the terminal device, group sharing configured by a virtual directory First means for reading from a storage device containing information and transmitting the information to the terminal device;
When an access start request including a file name is received from the terminal device, the access information in the group sharing information is referred to, an access permission including an IP address is transmitted to the terminal device, and the access information is set to “accessing”. Two means;
The server characterized by having. A groupware system comprising one or more terminal devices according to claim 1 and the server according to claim 2. Upon logout, a request to copy a real file of group shared information held in the storage device to the server is transmitted to the server. When copy destination information including an IP address is received from the server, the intranet or A third means for peer-to-peer access over the Internet to copy a real file;
A fourth means for performing logout upon sending a copy end notification to the server and receiving a connection end permission from the server;
The terminal device according to claim 1, comprising: A third means for transmitting copy destination information including an IP address upon receiving a copy request for a real file of group shared information from the terminal device;
A fourth means for transmitting a connection end permission to the terminal device when a copy end notification is sent from the terminal device;
The server according to claim 2, further comprising: A groupware system comprising one or more terminal devices according to claim 4 and the server according to claim 5. 7. The groupware system according to claim 3, wherein the group sharing information includes a file name directory corresponding to an actual file, and the file name directory includes access information and access authority information of the actual file. . 5. The terminal device according to claim 4, further comprising fifth means for dividing information to be transmitted, embedding key data, encrypting the information, and transmitting the encrypted data to the server. 6. The server according to claim 5, further comprising fifth means for removing key data from information from the terminal. 9. A groupware system comprising one or more terminal devices according to claim 8 and a server according to claim 5. When the terminal device transmits a connection request to the server via the intranet or the Internet and receives a connection permission, the terminal device transmits a group share information acquisition request of the group to which the terminal device belongs to the server, and receives the group share information from the server. , The procedure to store in the built-in storage device,
When the terminal device transmits an access start request including a file name to the server and receives an access permission including an IP address from the server, the terminal device accesses the other terminal device peer-to-peer via the intranet or the Internet using the IP address. A procedure for reading, updating, or deleting an actual file corresponding to the file name in the same group;
A groupware method comprising: When the server receives a connection request from the terminal device via the intranet or the Internet, it performs authentication, transmits a connection permission to the terminal device, and receives a group sharing information acquisition request from the terminal device, and is configured with a virtual directory. A procedure for reading from the storage device incorporating the group sharing information to be transmitted to the terminal device;
When the server receives an access start request including a file name from the terminal device, the server refers to the access information in the group sharing information, transmits an access permission including the IP address to the terminal device, and sets the access information as “accessing”. "
A groupware method comprising: A groupware method comprising the procedure according to claim 11 and the procedure according to claim 12. When the terminal device logs out, the terminal device transmits a copy request for the real file of the group shared information held in the storage device to the server, and receives the copy destination information including the IP address from the server. Accessing a device peer-to-peer over the intranet or the Internet and copying a real file;
When the terminal device sends a copy end notification to the server and receives a connection end permission from the server, a procedure for performing logout;
The groupware method according to claim 11, comprising: When the server receives a copy request for a real file of group shared information from the terminal device, a procedure for transmitting copy destination information including an IP address;
When the server notifies the end of copying from the terminal device, a procedure for transmitting a connection end permission to the terminal device;
The groupware method according to claim 12, comprising: 15. A groupware method comprising the procedure according to claim 14 and the procedure according to claim 15. When a connection request is transmitted to a terminal device via an intranet or the Internet and connection permission is received, a request for acquiring group sharing information of the group to which the terminal device belongs is transmitted to the server, and group sharing information is received from the server. , Execute the procedure to store in the built-in storage device,
When an access start request including a file name is transmitted to the server and an access permission including an IP address is received from the server, the other terminal device is accessed peer-to-peer via the intranet or the Internet using the IP address. , To execute a procedure for reading, updating, or deleting an actual file corresponding to the file name in the same group,
A groupware program characterized by that. When receiving a connection request from the terminal device to the server via the intranet or the Internet, authentication is performed, connection permission is transmitted to the terminal device, and when an acquisition request for group sharing information is received from the terminal device, a virtual directory is configured. Read from the storage device containing the group shared information to be transmitted to the terminal device,
When the server receives an access start request including a file name from the terminal device, the access information in the group sharing information is referred to, the access permission including the IP address is transmitted to the terminal device, and the access information is “accessing”. ”
A groupware program characterized by that. Upon logout to the terminal device, a request to copy a real file of group shared information held in the storage device to the server is transmitted to the server, and when copy destination information including an IP address is received from the server, another terminal is transmitted by the IP address. Allowing the device to perform peer-to-peer access via the intranet or the Internet and copy the actual file;
When the terminal device transmits a copy end notification to the server and receives a connection end permission from the server, the terminal device executes a procedure for performing logout.
18. The groupware program according to claim 17, wherein When the server receives a request to copy a real file of group shared information from the terminal device, the server is caused to execute a procedure for transmitting copy destination information including an IP address,
When the server notifies the end of copying from the terminal device, it causes the terminal device to execute a procedure for transmitting a connection end permission;
The groupware program according to claim 18, wherein

Images