JP2000112862A - Cooperative work system and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a cooperative work performable in plural browsers by means of a shared screen, etc., by providing a shared means and a cooperation means on a server to display the shared screen on the screen of the browser which is operating on a client or to perform the coorperative work of an application in the browsers. SOLUTION: The browser, which is operating on a client 7 sends a request on a shared screen to a WWW server 1 displays the shared screen and a control screen which are sent back from the server 1 and gives the requests to a sharing means 3 operating on the server 1 for all client names. All client names sent back from the means 3 are displayed on the control screen, and each browser displays the shared screen and also the names of all clients which are operating for the cooperative work on the control screen respectively. Under such conditions, the means 3 operating on the server 1 sends back the requests to all browsers under connection to display the shared screen against the cooperative page request given from either one of browsers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooperative work system and a recording medium for performing cooperative work by connecting a plurality of browsers and a WWW server to a network.

[0002]

2. Description of the Related Art Conventionally, in the Internet, a browser accesses a WWW server via the Internet, receives a return of a predetermined URL page, displays the URL on a screen, and requests another URL page on the screen. Is returned and displayed on the screen, and the page (information) of the WWW server is referred to.

[0003]

However, in the above-described browser and WWW server system, a plurality of users operate a browser to display a shared screen and display mutual operations on another shared screen in real time. In addition, it is not possible to display / move a pointing pen such as a red pen on a shared screen in real time, and it is not possible to perform cooperative work by mutually using Java programs or the like.

[0004] The present invention solves these problems,
A server such as an awareness server and a collaboration server is provided in addition to the browser and the WWW server. The purpose is to realize shared screens, shared red pens, cooperative control of browsers, and cooperative work using Java programs, etc. with multiple browsers. And

[0005]

Means for solving the problem will be described with reference to FIG. In FIG. 1, a WWW server 1 downloads a requested URL page to a browser (a browser operating on the client 1) and displays the URL page.

[0006] The sharing means 3 is provided on a server and displays a shared screen on a screen of a browser operating on the client 7. The coordination means 5 is provided on the server, and cooperates the application with a browser operating on the client 7.

[0007] The client 7 is a computer system that operates a browser. Next, the operation will be described.
After the browser running on the client 7 sends the shared screen request to the WWW server 1 and displays the returned shared screen and control screen, it makes a request for all client names to the sharing means 3 running on the server and returns it. The displayed names of all clients are displayed on the control screen, and the browsers display the shared screen and the names of all clients performing other cooperative work on the control screen.

At this time, the sharing means 3 operating on the server in response to a request for a linking page from any browser returns all the currently connected browsers to display them on the shared screen. .

Further, in response to one of the browsers displaying the red pen on the shared screen and transmitting the object to the sharing means 3 operating on the server, the sharing means 3 is connected to another browser currently connected. The object is transmitted to and displayed on the shared screen.

Further, in response to the red pen displayed on the shared screen of the browser being moved on any browser, the movement information of the red pen is transmitted to the sharing means 3 operating on the server. Correspondingly, the sharing means 3 transmits the movement information of the red pen to another browser currently connected to move the red pen on the shared screen.

Further, the browser transmits a request for a shared screen for cooperative work to the WWW server 1 and displays the cooperative app on the shared screen for cooperative work returned and operates the cooperative app on the server. The information is transmitted to the cooperative means 5, and the cooperative means 5 transmits the operation information of the cooperative application to another browser currently connected, and performs the operation process according to the operation information of the cooperative application.

Accordingly, in addition to the browser and the WWW server, a server such as an awareness server for operating the sharing means 3 and a collaboration server for operating the coordination means 5 is provided, and a screen shared by a plurality of browsers, a shared red pen, a browser , And cooperative work using a Java program or the like can be realized.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments and operations of the present invention will be sequentially described in detail with reference to FIGS.

FIG. 1 shows a system configuration diagram of the present invention.
In FIG. 1, a WWW server 1 downloads a page of a URL requested from a browser running on a client 7 and displays the page of the URL.

The awareness server 2 is a server for displaying shared information and the like on a shared screen and a control screen of a browser operating on the client 7. Here, the awareness server 2 operates the sharing means 3 and the like. It is.

The sharing means 3 performs various kinds of sharing processing (such as displaying a shared window, displaying a red pen on the shared screen of all browsers, moving display, etc.) on a shared screen or a control screen displayed by a plurality of browsers. ) (Described later with reference to FIGS. 2, 5, and 8).

The collaboration server 4 is a server for cooperatively operating an application on a screen of a browser operating on the client 7, and here operates the coordination means 5 and the like.

The coordinating means 5 is for performing cooperative operations of applications on the shared screen of each browser. The network 6 is a network for transmitting and receiving data between the server and other servers and clients.

The client 7 is a computer system for operating a browser. Here, the client 7 displays a URL page (shared screen, control screen, etc.), and inputs various instructions from the screen. Things.

Next, the display of the shared screen and the control screen in the configuration of FIG. 1 in the order of FIG. 2 will be described in detail. FIG. 2 shows an operation explanatory diagram (display of a shared screen / control screen) of the present invention. Here, the clients H1 and H2 are the clients 7 in FIG. 1, the awareness server is the sharing means 3 of the awareness server 2 in FIG. 1, and the WWW server is the WWW server 1 in FIG.

In FIG. 2, S1, S1 ', S2, S3
Starts the client, the awareness server 2, and the WWW server 1, respectively, and puts them into an operating state. S4 is
The client H1 makes a service request. This allows
The browser of the client H1 in FIG. 1 is the UR of the initial page.
L is transmitted to the WWW server 1 via the network 6.

In S5, the WWW server 1 that has received the URL of the initial page in S4 transmits the initial page. S6
Transmits the control page following the transmission of the initial page in S5.

In S7, the browser of the client H1 is
5 to receive and display the initial page transmitted. S8
Indicates that the browser of the client H1 receives and displays the control page transmitted in S6. These S7, S
8, an HTML document (HTML of the shared window and the control window) as shown in FIG.
Document), and a shared window 12 is displayed at the bottom and a control window 11 is displayed at the top, as shown in FIG.

In step S9, connection is made with a socket. This transmits the packet of FIG. 4A described later (transmits the packet to the awareness server 2 of FIG. 1). In S10, it is determined whether the awareness server 2 has connected to the client. Here, since the packet transmitted in S9 has been received and connected, YES is determined, and the process proceeds to S11. On the other hand, in the case of NO, it stands by.

In S11, since it is determined that the connection to the client (browser) has been made in YES in S10, the host names (H1, H2,...) Are transmitted to all the clients. S12
Indicates that the client H1 receives all the client names transmitted in S11 and displays H1, H2 in the control window.
Is displayed. For example, a unique color is displayed for each host (client) name with an icon (●) on the left side of a control window 11 shown in FIG. 6 described later (a unique color corresponding to H1 and H2 is displayed (● H1 received by the host 1 may be displayed on the own H1))).

At S13, the client H2 receives all the client names transmitted at S11 and displays H1 and H2 on the control window. For example, on the left side of the control window 11 in FIG. 6 described later, a black mark is displayed for each host (client) name with a black mark (a black mark of a unique color corresponding to H1 and H2 (a host name other than the user's own name) May be displayed on the own H2 in response to the transmission of H1))).

As described above, the client (browser)
Transmits the URL of the initial page to the WWW server 1 at the time of startup, the initial page and the control page (FIG. 3)
As shown in FIG. 6, the control window 11 is displayed in the upper part, the shared window 12 is displayed in the lower part, and the awareness server is automatically displayed in response to the display of the control window 11, as shown in FIG. 2, the attention server 2 downloads the host names of all currently connected clients, and displays the shared window on the control window 11 of the client (browser).
H2 or the like is displayed. As a result, as shown in FIG. 6, a control window 11 is displayed in the upper part and a shared window 12 is displayed in the lower part on the browsers of all the clients that have issued the shared window request. Information and shared information common to all the shared windows can be displayed in real time.

FIG. 3 shows a structure and an example of contents of a WWW page of the present invention. This is because WW is performed in S5 and S6 of FIG.
In the example of the HTML document 10 returned from the W server 1 to the client browser, the upper part is an HTML document displaying a control window 11, and the lower part is an HTML document displaying a shared window 12. Also, an HTML document (in “in”) for displaying two frames (control window and shared window) together.
dex. html) is also returned to the browser.

FIG. 4 shows an explanatory diagram (transmission data) of the present invention. FIG. 4A shows an example of transmission data (packet) when connecting with a socket. This is the same as described in FIG.
In S9, from client browser to WWW server 1
Is an example of the transmission data (packet) transmitted to the device, and sets the following data shown in the figure.

Transmission destination: IP of the awareness server
Address-Sender: IP address of client H1-Sender: Mac address of awareness server-Sender: Mac address of client H1-Data: None When the server 2 receives the information, the sharing unit 3 is activated, and the processing after YES in S10 of FIG. 2 described above is started.

FIG. 4B shows an example of transmission data (packet) of the host name transmission from the awareness server. This is an example of transmission data (packet) transmitted from the awareness server 2 to each client in S11 of FIG. 2 described above, and the following data shown in the drawing is set in the client H1.

Transmission destination: IP address of client H1 Transmission source: IP address of awareness server Transmission destination: Mac address of client H1 Transmission source: Mac address of awareness server Data: Host display request: H1: ON H2: ON Similarly, the following data shown is set in the client H2.

Transmission destination: IP address of client H2 Transmission source: IP address of awareness server Transmission destination: Mac address of client H2 Transmission source: Mac address of awareness server Data: Host display request: H1: ON H2: ON When the awareness server 2 creates and transmits the above transmission data and the clients H1 and H2 receive the data, the processes of S12 and S13 in FIG. FIG.
The shared host names (client names) H1 and H2 are all displayed on the control window 11.

FIGS. 4C and 4D show examples of transmission data (packets) of red pen information. This is the "red pen" displayed on the shared window in the order shown in FIG.
Is an example of transmission data when the awareness server 2 transmits the object and the display coordinates to the awareness server 2 ((c) in FIG. 4), and the awareness server 2 broadcasts to all clients (here, H2) (FIG. 4). 4 (d)).

FIG. 4C shows an example of transmission data of “red pen” transmitted from the client H 1 to the awareness server 1. Here, the following data shown in the figure are set. -Sender: IP address of the awareness server-Sender: IP address of client H1-Sender: Mac address of the awareness server-Sender: Mac address of client H1-Data-Red pen request:-Shape: • Coordinates: X coordinate and Y coordinate • Type of ON / OFF: ON or OFF The client H1 creates and transmits transmission data that is greater than or equal to and receives by the awareness server 2.

FIG. 4D shows the awareness server 1.
Shows an example of transmission data of “red pen” which is transmitted to the client H2. Here, the following data shown in the figure are set. -Sender: IP address of client H2-Sender: IP address of awareness server-Sender: Mac address of client H2-Sender: Mac address of awareness server-Data-Red pen request: H1-Shape : Coordinates: X coordinate and Y coordinate • ON / OFF type: ON or OFF The awareness server 2 creates transmission data and transmits it to another client H2, and the client H2 receives the data. It is possible to create a red pen on the shared window of the H1 browser, transmit the information (shape, coordinates) to all other clients, and display the information in real time on the shared window.

FIG. 4C shows an example of transmission of information (scroll bar position information) when scrolling on the shared screen. As a result, the screen displayed on the shared screen can be scrolled.

FIG. 5 is an operation explanatory diagram (shared) of the present invention. This is based on the HTML shown in FIG.
In the state where the control window 11 is displayed in the upper part of the client browser and the shared window 12 is displayed in the lower part of the document and the host names (client names) H1 and H2 to be shared are displayed in the control window 11,
This is a procedure for displaying shared information in a shared window.

In FIG. 5, S21, S22, S23
Is client H1, H2, awareness server 2
Has already been started and is operating. S24 is WWW
In addition to the server 1, the W2 is activated as a WWW server and brought into an operating state.

In step S25, a URL is input on the control window 11 on the browser of the client H1 (the link URL on the control window 11 in FIG. 6).
Enter the URL in the L input field). Then, the URL is transmitted.

At S26, it is determined whether or not the URL transmitted at S25 is received by the awareness server 2 here.
In the case of YES, the process proceeds to S27. If no, it stands by.

In S27, a predetermined URL is determined by YES in S26.
Here, it is determined that the URL has been received. Here, the corresponding URL is transmitted to all the clients (the URL of the specified shared page).
L).

In S28, the client H1 receives the URL transmitted in S27, and makes a display request to the shared window. S29 responds to the request for display in the shared window in S28, and sends the UR to the WWW server 1.
Send a request for page L.

In S30 and S31, similarly to S28 and S29, the client H2 receives the URL transmitted in S27, makes a display request to the shared window, and transmits a request for the page of the URL to the WWW server 1.

In step S32, a WWW page (a page specified by a URL (HTML document)) is returned in response to the page request transmitted in steps S29 and S31. S3
3. In step S34, the clients H1 and H2 display a page in a shared window (display the HTML document of the received page on the shared window 12 of the browser). As a result, the same content to be shared is displayed in the sharing window 12 of the browser of each client, as shown in the lower part of FIG. 6 described later.

As described above, when the client, for example, the client H1 inputs the URL for cooperation, this URL
L is sent to the awareness server 2 and sends it to all clients, and each client
, Upon receiving a reply of the HTML document of the page, the shared contents (cooperation contents) can be displayed on each shared window.

The WWW pages displayed as shared contents include a WWW page in which an initial page and a control page are stored.
WW which is an arbitrary WWW site different from W server 1
An arbitrary WWW page of the W server W2 can be referred to.

FIG. 6 shows a screen example (initial page and control page) of the present invention. Here, the upper part is the control window 11, and the lower part is the shared window 12. The control window 11 and the sharing window 12 are realized by displaying the above-described HTML document 10 of FIG. 3 received by each client from the WWW server 1. Each item / column is as described outside the illustrated column.

FIG. 7 shows a screen example of the WWW cooperation function of the present invention. Here, the left side is the browser of the client H1 (for example, the Internet 95 of Windows95 (trade name)).
The example displayed on etExplorer 4.0 (trade name) is shown on the right side of the browser (Ma) of the client H2.
c OS 8.1 (trade name) Netscape Nav
igator (trademark name), and shows the same URL (JAIST homepage) viewed in real time on different browsers running on different OSs (JAIST is the university name (Hokuriku) Advanced Science and Technology Graduate University)).

FIG. 8 is a diagram for explaining the operation of the present invention (display / movement of red pen). In FIG. 8, in S41, the client H1 displays a menu. In step S42, an object displayed as a red pen is specified.

In step S43, an object is displayed. In these steps S41, S42, and S43, for example, as shown in FIG. 9A, a pop-up menu is displayed, and a figure (object) to be used as a red pen, for example, an arrow is designated (selected) from the pop-up menu. Thus, as an arrow at the lower right, an overlay is displayed on the WWW page displayed in the shared window. Then, the object information (information including the object and the coordinates) of the red pen is transmitted.

In step S44, the awareness server 2, which has received the object information transmitted in step S43, transmits the object information to a client other than the transmission source. S45
Here, a client other than the transmission source, for example, the client H2 receives the object information transmitted in S44 and displays it on the shared window based on the object information as shown in FIG. "Red pen" is displayed in the same shape and at the same position.

In S46, the client H1 moves the object (red pen). The movement information is transmitted to the awareness server 2. S47 is the awareness server 2
Sends movement information to clients other than the sender.

In step S48, the client H2 displays the movement of the object. As described above, when a certain client H1 selects and displays an object that becomes a “red pen”, the object information is automatically transmitted, and the awareness server transfers the object information to all the other clients in a shared state. The client displays the red pen based on the received object information, and when any client moves the red pen, the movement information is received by the other client via the awareness server and the red pen is moved. It becomes possible. As a result, it is possible to display the red pen on the shared window of the client and indicate the same position to perform data communication with each other, and to use it for pointing out a totaling point, asking questions and supporting meetings.

FIG. 9 shows a screen example (red pen) of the present invention. FIG. 9A shows a state in which a pop-up menu appears on a WWW page of a certain client, an arrow, a line drawing, or text is input, and designated (selected) as “red pen”.

FIG. 9B shows an object input over a network (such as the Internet).
And a state in which the movement of the object also follows. Here, the red pen is designated and displayed and moved on the shared window of the client of FIG. 9A, and the red pen is displayed and moved following the shared window of the client of FIG. 9B. As shown in the figure, a pop-up menu is also displayed on the sharing window shown in FIG.
You can enter a red pen object and share and display it with all clients. The input object is identified for each client by a color uniquely assigned by the awareness server 2. Objects input or operated by each client are displayed in real time. The object input by the client H1 is displayed on the shared screen of the client H2 and the movement of the movement and size is transmitted, but the object cannot be operated on the client H2 side.

FIG. 10 shows an example of a screen (a function of displaying a plurality of shared windows) according to the present invention. Here, an example is shown in which three shared windows are provided on the browser of the client. These shared windows are referred to as a shared window shared by all clients, a shared window shared by clients in a group, and a shared window shared by individuals. This means that you can specify all the clients to share, specify a specific group, specify a specific client name, etc. arbitrarily, display multiple specified shared windows and exchange information between clients in the share Can be displayed in a shared manner.

FIG. 11 is a diagram for explaining the operation of the present invention (cooperative work). In this method, a cooperative application is displayed on a browser sharing window of a client to be shared, and cooperative business processing by the cooperative application (for example, cooperative business processing in which business processing described in a Java program running on a browser is performed in cooperation) is performed. This shows the procedure at that time.

In FIG. 11, a step S50 activates the collaboration server 4 to bring it into an operating state. S51 is
The client H1 requests the URL of the cooperative work. This request is transmitted to the awareness server 2.

In step S52, the awareness server 2 receiving the request in step S51 broadcasts a URL. S53 is S
The client H1 receiving the broadcast of 52 issues a display request to the shared window.

In step S54, a page request is made to the WWW server in response to the display request in the shared window in step S53. In steps S55 and S56, as in steps S53 and S54, the client H2 makes a display request to the shared window, and makes a page request to the WWW server in response to the display request to the shared window.

In step S57, the WWW server 1 that has received the page requests in steps S54 and S56 transmits a WWW page for cooperative work. In step S58, the client H1 receives the cooperative work WWW page transmitted in step S57, and displays the WWW page and the cooperative application.

In step S59, as in step S58, the client H2 receives the cooperative work WWW page transmitted in step S57 and displays the WWW page and the cooperative application. S
Reference numeral 60 indicates that the client H2 issues an operation instruction to the cooperative application. The operation information of the operation instruction is transmitted to the collaboration server 4.

In S61, it is determined whether the collaboration server 4 is data of a port addressed to itself. In the case of YES, transmission data addressed to itself is received, and the flow proceeds to S62. NO
If so, wait.

In step S62, the operation information of the cooperative application received in step S61 is transmitted to all clients. Here, the operation information of the cooperative app may be transmitted by any method of all the clients including the user or all the clients other than the user.

In S63, the client H2 of the transmission source receives the operation information of the cooperative application here and starts the operation processing of the cooperative application. In S64, the client H1 other than the transmission source receives the operation information of the cooperative application, and starts the operation process of the cooperative application.

As described above, a client makes a URL request for cooperative work, displays a cooperative work page downloaded from the WWW server 1, and displays a cooperative application (one or any cooperative app selected from any). It is possible to transmit the operation information to all the clients or all the clients except the transmission source via the collaboration server 4 in response to the operation instruction of the cooperative app, and start the cooperative work on the shared window of each client. Become.

FIG. 12 shows an example of a screen (cooperative editor) according to the present invention. Here, the browser H1 on the left side is a browser operating on the client H1, for example, Net
scale 4.03 (ja) (trademark). The browser H2 on the right is a browser running on the client H2, such as Microsoft InternetE.
xproler 4.0 (trade name). As described above, the cooperative application (the applet described in the Java language) can work together on different browsers, the left browser H1 and the right browser H2. In the illustrated example, the editors cooperate to display the text entered on either the left side or the right side for all. The change of the font menu is also linked, and the font size and type are also linked. In addition, it is also possible to perform a cooperative operation by reading a file in the server by specifying a URL and cooperating.

In this embodiment, the WWW server 1, the awareness server 2, and the collaboration server 4 are described separately for convenience of explanation. However, the awareness server 2, the collaboration server 4 and the conventional WWW server 1 are arranged separately. May be provided, or another server may have the functions of the awareness server 2 and the collaboration server 4.

FIG. 13 is a diagram for explaining the operation of the present invention (detection of disconnection state). In FIG. 13, in step S71, the H1 which is one of the clients connected to the system terminates the browser or exits the sharing control page and refers to another WWW page to terminate the cooperative system.

In S72, the socket connected to the awareness server 2 is disconnected by the termination of the system. A step S73 decides whether or not the awareness server 2 has disconnected from the client. Here, since the socket was disconnected in S72, the result is YES, and the process proceeds to S74. On the other hand, in the case of NO, it stands by.

In S74, since it is determined that the client H1 has been disconnected, the host name (H2...) Currently in the standby state is transmitted to all the clients. S75
Receives the name of the host in the current connection state and displays H2 in the control window.

FIG. 14 is a diagram for explaining the operation of the present invention (browser control, scroll). In FIG. 14, S81
Operates the scroll screen of the WWW page of the shared window by pressing the scroll button in FIG. 6 with the controller of the control window.

In step S82, the screen of the shared window is scrolled according to the scroll amount and direction input in step S81. Then, the scroll information (the current position of the scroll of the shared screen) shown in FIG. 4E is transmitted to the awareness server 2.

At step S83, the scroll information received from the client H1 is transmitted to the client H other than the sender.
Broadcast to all connected clients such as 2. In step S84, the screen of the shared window is scrolled according to the scroll information received from the awareness server 2.

In the same manner as described above, information indicating that the size of the browser has been changed, that the icon state has been reached, that the loading of the WWW page has been completed, that the frame has been changed, and that the position information of the browser has been transmitted are transmitted. Browser state is shared.

[0077]

As described above, according to the present invention,
In addition to the browser and the WWW server, a server such as an awareness server that operates the sharing unit 3 and a collaboration server that operates the coordination unit 5 is used. , And cooperative work by a Java program or the like. Thus, conventionally, a browser can only refer to information on a page of a server. However, by providing a sharing unit 3 and a coordinating unit 5 in an arbitrary server, a shared screen (shared window) is displayed on each browser. Sharing, displaying common positions with a red pen, and coordinating the browser to perform conversations, etc. In addition, collaborative applications (such as applets) can be displayed on a collaborative screen (shared collaborative window) in real time. And can perform cooperative work. Further, not only the shared display but also the input can be performed from the shared screen, and the input status can be transmitted and displayed between the respective clients, and the two-way sharing can be realized.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of the present invention.

FIG. 2 is an operation explanatory diagram (display of a shared screen / control screen) of the present invention.

FIG. 3 is a configuration and an example of contents of a WWW page of the present invention.

FIG. 4 is an explanatory diagram (transmission data) of the present invention.

FIG. 5 is an operation explanatory diagram (shared) of the present invention.

FIG. 6 is a screen example (initial page and control page) of the present invention.

FIG. 7 is a screen example of a WWW cooperation function of the present invention.

FIG. 8 is an operation explanatory diagram (red pen display / movement) of the present invention.

FIG. 9 is a screen example (red pen) of the present invention.

FIG. 10 is a screen example (function of displaying a plurality of shared windows) according to the present invention.

FIG. 11 is an explanatory diagram (cooperative work) of the operation of the present invention.

FIG. 12 is a screen example (cooperative editor) of the present invention.

FIG. 13 is an explanatory diagram of the operation of the present invention (detection of disconnection state).

FIG. 14 is an operation explanatory diagram (browser control, scroll) of the present invention.

[Explanation of symbols]

 1: WWW server 2: Awareness server 3: Sharing means 4: Collaboration server 5: Cooperation means 6: Network 7: Client 10: HTML document 11: Control window (control screen) 12: Sharing window (shared screen)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B089 GA11 GB03 GB04 GB09 HA10 JA16 JB00 JB22 KA02 KB06 KC44 KC47 LB14

Claims (7)

[Claims] 1. A cooperative work system for connecting a plurality of browsers and a WWW server to a network to perform cooperative work, comprising: a WWW server for returning a corresponding page in response to a request from the browser; A server that returns all client names in response to the request, a shared screen request is transmitted to the WWW server, and the returned shared screen and control screen are displayed, and in response to displaying the control screen, A browser for requesting names of all clients connected to the server and displaying all returned client names on the control screen. 2. An arbitrary WWW from any of the above browsers
2. The cooperative work system according to claim 1, wherein the server responds to the request for the page by sending back to all the currently connected browsers to display on the shared screen for cooperation. 3. In response to one of the browsers displaying a red pen on the shared screen and transmitting an object to the server, the server transmits the object to another browser currently connected to the server. The cooperative work system according to claim 1 or 2, wherein the cooperative work system is displayed on a shared screen. 4. The server according to claim 3, wherein the information on the red pen displayed on the shared screen is transmitted to the server in response to movement, size change, or increase or decrease in the number of browsers. In response to this, the server transmits red pen information to another browser currently connected to the server, and moves, resizes, or increases or decreases the number of red pens on the shared screen. . 5. A cooperative work shared screen is transmitted to the WWW server, a cooperative app is displayed on the returned cooperative work shared screen, and operation information of the cooperative app is transmitted to the server. 5. The browser according to claim 1, further comprising a browser that causes the server to return operation information of the cooperative application to another browser currently connected, and perform an operation process according to the operation information of the cooperative application. A collaborative work system according to the present invention. 6. A method for scrolling a WWW page displayed on the shared screen, changing a size of a browser, changing a position of a browser, detecting an icon state, or displaying completion of reading of a WWW page. Item 1
The cooperative work system according to any one of claims 1 to 5. 7. A program provided in a WWW server for returning a corresponding page in response to a request from a browser, a program provided in a server for returning all client names in response to a request for all client names from a browser, A request for a shared screen is transmitted to the WWW server, and the shared screen and the control screen returned are displayed, and in response to the display of the control screen, a request for all client names connected to the server is made and returned. And a computer-readable recording medium that records a program provided in a browser that displays all the client names on the control screen.