JP2012194625A - Document management device, document editing method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document management system and the like which allows respective users to perform respective editing work and also browse simultaneous and parallel editing contents by other users when performing the editing work of one electronic document.SOLUTION: A document management device related to the invention includes: layer file generation means for generating an image file of an electronic document and a work file for each of a plurality of terminals when an editing start request is received from the plurality of terminals; display file generation means for generating a first display file by combining the image file of the electronic document and the work files for all the respective terminals; transmission means for transmitting the first display file; and work file updating means for updating the work file of the terminal of an updating request origin when updating data is received. The display file generation means generates a second display file by combining the image file of the electronic document and the work files for all the respective terminals including the updated work file, and the transmission means transmits the second display file to the plurality of terminals.

Description

  The present invention relates to the field of a document management apparatus, a document editing method, and a program.

  Conventionally, in a meeting place, a whiteboard, a blackboard, etc. are provided in the center of the front of the meeting room, and the presenter writes the agenda and meeting contents on the whiteboard by hand using a pen on the whiteboard. It has progressed. In addition, when there is a remark from a conference participant, the presenter and the speaker further write the content on the whiteboard. Participants sometimes discuss while looking at the whiteboard, and several participants write simultaneously on the whiteboard while giving ideas.

  In recent years, computerization has progressed and computerization has also progressed in conferences. The whiteboard in the front center replaces the electronic monitor, and the presenter projects the electronic document (electronic file) on the PC terminal onto the electronic monitor and proceeds with the meeting while writing the agenda and meeting contents on the electronic document on the PC terminal. . When there is a comment from a participant in the conference, the presenter and the speaker further write the contents in the electronic document on the PC terminal.

  Furthermore, the conference itself has been held by electronic conference. In the conference system, each terminal (PC, portable information terminal, etc.) is connected via a network, and remote participants hold a conference through their own terminals. Since the sharing screen is displayed on the participant's terminal and the speech / speech is transmitted, the participant proceeds with the conference while viewing the electronic document displayed on the sharing screen. Each participant can also write (update, etc.) to the electronic document displayed on the shared screen of his / her terminal, and the written content is reflected in the electronic document on the shared screen of all participants' terminals. The

  Here, when a plurality of participants jointly write to one electronic document displayed on the shared screen, the conventional document management system gives the user the editing authority temporarily or sequentially during editing. Provide exclusive control method that excludes editing by other users, and a method that divides an electronic document by file, page, or specified range, and checks out and edits for each division in charge It has been known.

  As a technique related to this, in Patent Document 1, for the purpose of improving the efficiency and reliability of document collaborative editing, when editing a document registered in the system, the system manages the document entity and update information. A configuration is disclosed in which the latest document is displayed when another user accesses, and simultaneous editing is enabled by directly editing the document by temporarily giving the other user an update authority.

  Patent Document 2 discloses a configuration that allows a user other than the creator to create a document according to authority when the document being created is forcibly disclosed under certain conditions for the purpose of improving the efficiency of document editing. Has been.

  Conventional document management systems share or create electronic documents in order, or create and edit them sequentially with a slight time lag. The work of creating and editing a document with a fixed circulation was made more efficient. However, as with whiteboards and paper documents, it was not efficient to simultaneously edit while concurrently browsing multiple documents while browsing the same document.

  For example, in a teleconferencing situation where participants at remote locations discuss while looking at the electronic document displayed on the shared screen and edit the electronic document in parallel while giving ideas, In the above-described conventional method, the writing range is limited or a time lag occurs due to the waiting order, which is not convenient. Rather, participants can perform their own editing operations on the electronic document without interfering with the editing operations of other participants, and the concurrent editing contents of other participants are also reflected in real time. It is desirable to be able to browse.

  In the present invention, in view of the above points, when a plurality of users edit one electronic document, each user can perform his / her own editing work, and other users can perform editing simultaneously. It is an object of the present invention to provide a document management apparatus, a document editing method, and a program that can also browse contents.

  In order to solve the above problems, a document management apparatus according to the present invention is a document management apparatus that is connected to a plurality of terminals that edit an electronic document and manages the electronic document stored in a document storage unit, Layer that generates an image file of the electronic document and a working file having the same image area as the image file of the electronic document for each of the terminals upon receiving an edit start request for the electronic document from the plurality of terminals A file generation unit; a layer file management unit that stores and manages the image file of the electronic document; and the work file associated with each terminal; and the electronic document stored and managed by the layer file management unit A display file that generates a first display file by superimposing and synthesizing the image file and the work file for every terminal. Means, a transmitting means for transmitting the generated first display file to the plurality of terminals, and the first display file being edited by any of the terminals and receiving update data from the terminal Then, by adding update data to the work file stored and managed in association with the update request source terminal, the work file update means updates the work file, and the display The work file generating means includes an image file of the electronic document stored and managed by the layer file management means, and work files for all terminals including the work file updated by the work file update means. A second display file is generated by superimposing and synthesizing, and the transmission means transmits the second display file to the plurality of terminals. To signal, characterized by.

  In order to solve the above problem, in the document management apparatus, the display file generation unit superimposes an image area of the image file of the electronic document and an image area of the work file for every terminal. By combining, a display file including all images drawn in all the image areas is generated.

  Further, in order to solve the above-mentioned problem, the document management apparatus stores and manages it by the layer file management means upon receiving an editing end notification for one electronic document from the plurality of terminals that have made the editing start request. The edited electronic document is generated by transparently superimposing the image file of the electronic document and the work file for every terminal including the work file updated by the work file update unit, Storage means for replacing the edited electronic document with the first electronic document and storing the electronic document in the document storage unit.

  In order to solve the above problem, in the document management apparatus, the storage unit stores the image file of the electronic document stored and managed by the layer file management unit in the document storage unit, and further, Each of the work files for all terminals including the work file updated by the file update means is stored in the document storage section in association with each terminal, and the display file generation means is stored in the document storage section A third display file is generated by superimposing and synthesizing the image file of the electronic document and the one work file associated with any one terminal, and the transmission means Transmits the third display file to the plurality of terminals.

  In addition, what applied the arbitrary combination of the component of this invention, expression, or a component to a method, an apparatus, a system, a computer program, a recording medium, etc. is also effective as an aspect of this invention.

  According to the present invention, when one electronic document is edited by a plurality of users, each user can perform his / her own editing work, and can also view editing contents of other users simultaneously. A document management apparatus, a document editing method, and a program can be provided.

It is a system configuration figure concerning this embodiment. 2 is a hardware configuration diagram illustrating a main configuration of an embodiment of a document management server 1. FIG. It is a functional block diagram which shows the main functions of one Embodiment of the document management server 1 and the terminal 2. FIG. FIG. 10 is a sequence diagram illustrating acquisition / display of a document file to be edited. The example (the 1) of a display screen of terminal 2a-2d is shown. It is a sequence diagram explaining the edit start preparation of the document file to be edited. An example (part 1) of the generated layer file is shown. An example of layer file synthesis is shown. An example (part 1) of layer file synthesis results is shown. It is a sequence diagram explaining the edit process of the document file to be edited. An example of editing the terminal 2a is shown. An example (part 2) of the generated layer file is shown. An example (part 2) of the synthesis result of the layer file is shown. An example of editing the terminal 2b is shown. An example (part 3) of the generated layer file is shown. An example (part 3) of layer file synthesis results is shown. The example (the 2) of a display screen of terminal 2a-2d is shown. It is a sequence diagram explaining the update (save) process of the document file to be edited. The layer file example (the 4) at the time of an edit completion notification is shown.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings in each embodiment.

[System configuration]
(overall structure)
First, before describing specific contents of the present invention, an overall configuration for carrying out the present invention will be described. FIG. 1 is a system configuration diagram according to the present embodiment. As shown in the figure, in the document management system 100 according to the present embodiment, a document management server 1 and a terminal 2 are connected via a network 3.

  The document management server 1 is a server that manages documents by managing electronic documents and attribute information (document properties) stored in a document DB (Data Base). In accordance with a request from the user's terminal 2, a document file, a document search function, a document editing function, and the like are provided. As will be described later, the terminal 2 according to the present embodiment acquires and displays an electronic document, and edits the electronic document. Therefore, the terminal 2 accesses the document management server 1 to obtain the electronic document in the document DB. It can be displayed on the display device of the terminal 2 by calling the document. In addition, when editing work (writing, etc.) is performed on the electronic document, the terminal 2 writes the edited content to the electronic document in the document DB. The document management server 1 can be installed in, for example, an in-house LAN or an external data center.

  The terminal 2 is a client terminal for document display (viewing) and editing work operated by the user. The user operates the terminal 2 to access the document management server 1 to register (upload), update (edit, delete, move, copy, etc.), search, display, obtain (download), create a folder, etc. It can be performed.

  In the terminal 2 according to the present embodiment, as will be described later, an electronic document is acquired and displayed, and an editing operation is performed on the electronic document. 2a is desirable. In this case, the user can easily edit (write, etc.) the electronic document displayed on the smart device 2a using, for example, a touch pen. Of course, the terminal 2 may be a mobile phone (terminal 2b), a notebook PC (terminal 2c), or a desktop (terminal 2d). Therefore, as the input device of the terminal 2, a touch panel that realizes movement of the cursor on the screen, selection of an icon, etc. using a finger, a stylus, etc. in addition to a keyboard and a mouse for inputting characters and numbers. You can also.

  The network 3 is a network (including wired and wireless) that connects the document management server 1 and the terminal 2. For example, when the document management server 1 is located in the office, it can be realized by a LAN.

  Note that this system configuration may further include a conference system (not shown). In this case, the terminal 2 functions as a conference terminal for conducting an electronic conference. When the terminal 2 logs in to the conference system, the shared screen is displayed on all the terminals 2 and the speech / voice is also transmitted. Therefore, the user proceeds with the conference while viewing the electronic document displayed on the shared screen. Go. Since the document management system 100 is responsible for processing related to the electronic document, the conference system and the document management system 100 operate in cooperation with each other. For example, the document management server 1 displays the electronic data displayed on the shared screen of the terminal 2. It is responsible for providing documents and editing (writing, etc.) for electronic documents. However, in this embodiment, details of cooperation with the conference system are omitted to focus on editing of the electronic document.

(hardware)
Here, the hardware configuration of the document management server 1 according to the present embodiment will be described. FIG. 2 is a hardware configuration diagram showing the main configuration of one embodiment of the document management server 1. The document management server 1 includes, as main components, a CPU 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, an auxiliary storage device 14, a storage medium reading device 15, an input device 16, a display device 17, and a communication. The configuration includes the device 18.

  The CPU 11 is composed of a microprocessor and its peripheral circuits, and is a circuit that controls the entire apparatus. The ROM 12 is a memory that stores a predetermined control program (software component) executed by the CPU 11. The RAM 13 executes various control operations by the CPU 11 executing a predetermined control program (software component) stored in the ROM 12. This is a memory used as a work area (work area) when performing.

  The auxiliary storage device 14 is a device for storing various information including a general-purpose OS (Operating System) and programs, and an HDD (Hard Disk Drive), which is a nonvolatile storage device, is used. Further, the document DB 101 and the user DB 102 can be constructed in the auxiliary storage device 14. Information from the outside can be acquired by setting a portable medium such as a USB memory in the storage medium reader 15.

  In addition to the auxiliary storage device 14, the various types of information are stored in various storage media such as portable media such as CD-ROM (Compact Disk-ROM), DVD (Digital Versatile Disk), and USB memory, and other media. Various information stored in these storage media can be read via a drive device such as the storage medium reader 15.

  The input device 16 is a device for a user to perform various input operations. The input device 16 includes a mouse, a keyboard, a touch panel switch provided so as to be superimposed on the display screen of the display device 17, and the like. The display device 17 is a device that displays various data on a display screen. For example, it is composed of LCD (Liquid Crystal Display), CRT (Cathode Ray Tube) and the like.

  The communication device 18 is a device that communicates with other devices via the network 3. Supports communication according to various network forms including wired and wireless networks.

  Note that the terminal 2 is a client terminal such as a smart device, a mobile phone, and a PC as described above, and can be realized with the same configuration as that shown in FIG.

(function)
Next, functional configurations of the document management server 1 and the terminal 2 will be described. FIG. 3 is a functional block diagram showing the main functions of one embodiment of the document management server 1 and the terminal 2.

  The document management server 1 includes a storage unit 101, a document file providing unit 102, a layer file generation unit 103, a layer file management unit 104, a display file generation unit 105, a transmission unit 106, an update unit 107, and a storage unit as main functions. 108.

  The storage unit 101 stores a document DB. The document DB stores electronic documents and attribute information (document properties) managed by the document management server 1.

  The document file providing unit 102 provides a document file to the terminal 2. Since the terminal 2 is a document browsing terminal, the user can access the document management server 1 by operating the terminal 2 and obtain (download) a document file to be browsed.

  Upon receiving an edit start request for the same electronic document from a plurality of terminals 2, the layer file generation unit 103 generates a plurality of work files having the same image area as the image file of the electronic document and the image file of the electronic document. Generate for each terminal. For example, when an edit start request for the same electronic document is received from four terminals 2a to 2d, one image file of the electronic document to be edited is generated. If the electronic document is already an image file, a new image having an image area size equivalent to the screen size of the terminal 2 is generated. If the electronic document is a document file made up of vector information or the like, the document file is converted into an image file, and a new one in which the image area size of the electronic document is equivalent to the screen size of the terminal 2 is generated. Also, work files for the terminals 2a to 2d are generated for each terminal (four). The image area of the work file has the same image area size as the image file of the previous electronic document, and an empty image in which no image is drawn is generated in the image area. This point will be described later again with a specific example.

  The layer file management unit 104 stores and manages the image file of the electronic document generated by the layer file generation unit 103. In addition, work files for a plurality of terminals are stored and managed in association with each terminal. In the above-described layer file generation unit 103, work files for the terminals 2a to 2d are generated for each terminal. Therefore, associating, which work file belongs to which terminal, such as terminal 2a / work file a, terminal 2b / work file b, terminal 2c / work file c, terminal 2d / work file d It is to manage whether there is. Note that this association only needs to be managed from the start of editing to the end of editing for the electronic document, so it may be stored and managed in a temporary memory (RAM 13 or the like), for example.

  The display file generation unit 105 superimposes the image file of the electronic document stored and managed by the layer file management unit 104 and the working file business files for the production terminals 2a to 2d for all terminals. By combining, a display file is generated. The above-described layer file management unit 104 stores and manages a total of five files, that is, an image file (one) of the electronic document and work files (four) for the terminals 2a to 2d. The files are transparently superimposed and combined into one file. The combined one file is a display file. This point and details will be described later again.

  The transmission unit 106 transmits the display file generated by the display file generation unit 105 to a plurality of terminals. In the case described above, this display file is transmitted to the four terminals 2a to 2d. Since the same display file is transmitted to all terminals, the same display image is displayed on the viewer unit 201 of the terminals 2a to 2d.

  When the display unit edits the display file by one of the terminals and receives the update data from the terminal, the update unit 107 receives the update data for the work file stored and managed in association with the update request source terminal. By adding, the working file is updated. For example, among the terminals 2a to 2d, when the display file is edited at the terminal a and update data is received from the terminal a, the work file for the terminal a is updated. After the update, the display file generation unit 105 generates a display file from the image file of the electronic document and the work file for each terminal (the work file for the terminal a has been updated). It is transmitted to the terminals 2a to 2d. Further, the same display image reflecting the editing content of the terminal 2a is displayed on the viewer unit 201 of all the terminals 2a to 2d.

  When the storage unit 108 receives an editing end notification for one electronic document from a plurality of terminals that have requested editing start, the storage unit 108 stores the image file of the electronic document stored and managed by the layer file management unit 104 at that time, and the terminal By superimposing and synthesizing each work file, an edited electronic document is generated, and the edited electronic document is replaced with one electronic document and stored in the document DB. In short, the editing (update) of the electronic document is completed after the editing from all terminals is reflected.

  Next, the terminal 2 is configured to include a viewer unit (display unit) 201 and an editing unit 202 as main functions.

  The viewer unit 201 displays a document, for example, with the terminal 2 using a dedicated viewer or a general-purpose Web browser as a viewer. Display information (document file, display file, etc.) from the document management server 1 is received and displayed on the viewer.

  The editing unit 202 edits the display image displayed on the viewer unit 201. In the terminal 2 according to the present embodiment, an electronic document is acquired and displayed, and editing work is performed on the electronic document. For example, for an electronic document displayed on the terminal 2a (smart device), an editing operation (writing, etc.) is easily performed using, for example, a touch pen. At this time, the editing unit 202 transmits the written image that has been written to the document management server 1 as update data.

  Note that these functions described above are actually realized by a program executed by the CPU 11.

[Information processing]
Hereinafter, information processing of the document management system 100 according to the present embodiment will be specifically described. Here, it is assumed that the following story is set and then explained along each step for each story.
Terminals 2a to 2d first acquire and display a document file to be edited.
The terminals 2a to 2d make an edit start request for the document, and the document management server 1 prepares to start editing.
Terminals 2a to 2d perform editing operations on the document.
The terminals 2a to 2d notify the end of editing when the editing work is completed. The document management server 1 updates (saves) the document file to reflect the edited contents.

(Step A)
FIG. 4 is a sequence diagram illustrating acquisition / display of a document file to be edited.

  S1: The terminal 2 first makes a document acquisition request to the document management server 1. At this time, the document file name is also specified. Here, the document file name is “XXX.jpeg”.

  S2: Upon receiving a document acquisition request, the document management server 1 (document file providing unit 102) acquires the corresponding document file from the document DB and provides the document file to the request source.

  S3: When the terminal 2 acquires the document file, the viewer unit 201 displays the document file. Each of the terminals 2a to 2d is executed for S1 to S3.

  FIG. 5 shows a display screen example (part 1) of the terminals 2a to 2d. As shown in the figure, “XXX.jpeg” has an image of a T-shirt design, and the same image is displayed on each terminal. For example, the user of each terminal calls “XXX.jpeg” from the document DB of the document management server 1 and confirms the T-shirt design completed as a prototype.

  Each of the terminals 2a to 2d is an authorized user registered in the document management system 100, and each terminal has already logged in to the document management server 1.

(Step B)
FIG. 6 is a sequence diagram illustrating preparation for starting editing of a document file to be edited.

  S11: The terminal 2 operates to start editing the document in order to shift from the normal (display) mode to the edit mode. For example, each terminal 2 can start editing from the “edit” menu (FIG. 5).

S12: Using the document editing start operation as a trigger, the terminal 2 requests the document management server 1 to start editing the document. The document management server 1 recognizes the document file “XXX.jpeg” being displayed as a document file to be edited. About S11-12 above, each of terminal 2a-2d implements. This is because all the terminals 2a to 2d perform editing work simultaneously and in parallel. Note that there are four terminals 2a to 2d that the document management server 1 performs editing this time (the other terminal 2e does not exist). Can be recognized, for example, when logging in, the method of grouping four of the terminals 2a-2d, for example, when the terminal 2a starts editing from the "Edit" menu, the terminal 2b-2d in the option settings There is a method of grouping four terminals 2 including the above. Further, each terminal 2 has been described as shifting from the normal (display) mode to the editing mode. However, since a single electronic file is simultaneously edited by a plurality of members, the terminal 2 is shifted to the group editing mode. It can also be said.

  S13: Upon receiving an editing start request from all the terminals 2a to 2d in the group, the document management server 1 (layer file generation unit 103) acquires the corresponding document file “XXX.jpeg” from the document DB.

  S14: The document management server 1 (layer file generation unit 103) generates an image file of the electronic document and a work file having the same image area as the image file of the electronic document for each of a plurality of terminals. The image file and work file generated here are collectively referred to as a layer file.

  FIG. 7 shows a generated layer file example (part 1). The layer file generation unit 103 first generates an image file of an electronic document. Since the electronic document “XXX.jpeg” is already an image file, one electronic image corresponding to the screen size of the terminal 2 is generated (image file X). In the image file X, the image of “XXX.jpeg” is drawn as it is, and as shown in the figure, the image of the T-shirt design is drawn in the image area (dotted line frame in the figure). .

  Next, the layer file generation unit 103 generates a work file having the same image area as the image file of the electronic document for each of a plurality of terminals. Here, work files for the terminals 2a to 2d are generated for each terminal. The image area of the work file has the same image area size as the image file of the previous electronic document, and an empty image in which no image is drawn is generated in the image area. As a result, “work file for terminal 2a”, “work file for terminal 2b”, “work file for terminal 2c”, and “work file for terminal 2d” are generated.

  S15: The document management server 1 (layer file management unit 104) stores and manages the image file of the electronic document generated by the layer file generation unit 103. In addition, work files for a plurality of terminals are stored and managed in association with each terminal. For example, it may be stored and managed in a temporary memory (RAM 13 or the like). Specifically, here, "image file X", "work file for terminal 2a", "work file for terminal 2b", "work file for terminal 2c", "work file for terminal 2d" Is stored in the temporary memory.

  S16: The document management server 1 (display file generation unit 105) superimposes the image file of the electronic document stored and managed by the layer file management unit 104 and the work files for all terminals. As a result, a display file is generated. Here, the total of “image file X”, “work file for terminal 2a”, “work file for terminal 2b”, “work file for terminal 2c”, and “work file for terminal 2d” Five files are transparently superimposed and combined into one file. The one file synthesized here is a display file transmitted to each terminal 2.

  FIG. 8 shows an example of layer file synthesis. As shown in the figure, an “image file X” is placed at the bottom, and each work file is superimposed on top to be combined into one file.

  FIG. 9 shows an example (part 1) of layer file synthesis results. As shown in the figure, the synthesized one file shows through the image of “image file X” at the bottom when viewed from above. Here, since each work file is an empty image, no particular image can be seen. The one file synthesized here is a display file.

  S17: The document management server 1 (transmission unit 106) transmits one display file generated by the display file generation unit 105 to all the terminals 2a to 2d.

  S18: When the terminal 2 (viewer unit 201) receives the display file, for example, the terminal 2 displays the display file using a dedicated viewer or a general-purpose Web browser as a viewer. Since the same display file is transmitted to all terminals, the same display image is displayed on the viewer unit 201 of the terminals 2a to 2d. However, the display file here is substantially “XXX. “jpeg” (T-shirt design image) is the same as the display screens of the terminals 2a to 2d. That is, even if the user performs an editing start operation, the display screens of the terminals 2a to 2d are not changed at that time.

(Step C)
FIG. 10 is a sequence diagram illustrating editing processing of a document file to be edited. FIG. 10A shows the editing process of the terminal 2a, and FIG. 10B shows the editing process of the terminal 2b, which will be described below in order.

  S21: The terminal 2a (editing unit 202) performs an editing operation on the image on the display screen after shifting to the editing mode. Here, it is assumed that the terminal 2a (smart device) among the terminals 2a to 2d performs an editing operation, and the editing operation (writing or the like) is easily performed on the displayed T-shirt design image using, for example, a touch pen.

  S22: The terminal 2a (editing unit 202) transmits the written image thus written to the document management server 1 as update data. The transmission timing is one by one (every fixed time), but in practice, the transmission timing is very short enough to feel that the user is updated in real time.

  FIG. 11 shows an example of editing the terminal 2a. Here, as shown in the figure, in the terminal 2a, the user writes the displayed T-shirt design image using, for example, a touch pen. The written image is transmitted to the document management server 1 as update data one by one.

  S23: When the document management server 1 (update unit 107) receives the update data from the terminal 2a after the editing work is performed by the terminal 2a among the terminals 2a to 2d, the document management server 1 stores the By adding update data to the managed work file for the terminal 2a, the work file for the terminal 2a (only) is updated.

  S24: The document management server 1 (display file generation unit 105) updates the work file for the terminal 2a, and then updates the image file of the electronic document and work files for all terminals (the work file for the terminal 2a is The display file is generated again.

  FIG. 12 shows a generated layer file example (part 2). Compared with FIG. 7, the update data is reflected in the “work file for terminal 2 a”, and “image file X” is placed at the bottom in the same manner as in FIG. 8, and each work file is placed above. Are combined into one file.

  FIG. 13 shows an example (part 2) of layer file synthesis results. As shown in the figure, the synthesized one file shows through the image of “image file X” at the bottom when viewed from above. Here, since the work file for the terminal 2a includes an image, an image in which the image of the “image file X” and the image of the work file for the terminal 2a are superimposed can be seen. The one file synthesized here becomes a display file to be transmitted to all the terminals 2a to 2d again.

  S25: The document management server 1 (transmission unit 106) transmits the generated one display file again to all the terminals 2a to 2d.

  S26: Upon receiving the display file, the terminal 2 (viewer unit 201) displays the display file. Since the same display file is transmitted to all the terminals, the same display image as FIG. 13 is displayed on the viewer unit 201 of the terminals 2a to 2d.

  S31: Meanwhile, on the other hand, the terminal 2b (editing unit 202) performs an editing operation on the image on the display screen after shifting to the editing mode. Here, it is assumed that the terminal 2b performs the editing operation, and the editing operation (writing or the like) is easily performed on the displayed T-shirt design image using, for example, a touch pen.

  S32: The terminal 2b (editing unit 202) transmits the written image thus written to the document management server 1 as update data.

  FIG. 14 shows a terminal 2b editing example. Here, as shown in the figure, in the terminal 2b, the user writes the displayed T-shirt design image using, for example, a touch pen. The written image is transmitted to the document management server 1 as update data one by one.

  S33: When the document management server 1 (update unit 107) receives the update data from the terminal 2b after the editing work is performed by the terminal 2b among the terminals 2a to 2d, the document management server 1 (update unit 107) stores the update data in association with the update request source terminal 2b By adding update data to the managed work file for the terminal 2b, the work file for the terminal 2b (only) is updated.

  S24: The document management server 1 (display file generation unit 105) updates the work file for the terminal 2b, and then updates the image file of the electronic document and the work file for every terminal (the work file for the terminal 2b is The display file is generated again.

  FIG. 15 shows a generated layer file example (part 3). Update data is reflected in the “work file for the terminal 2b”, and “image file X” is placed at the bottom in the same manner as in FIG. 8, and each work file is overlaid on top. Composite to 1 file.

  FIG. 16 shows an example (part 3) of layer file synthesis results. As shown in the figure, the synthesized one file shows through the image of “image file X” at the bottom when viewed from above. Here, since the work file for the terminal 2b includes an image, an image in which the image of the “image file X” and the image of the work file for the terminal 2b are superimposed can be seen. Note that the one file synthesized here becomes a display file to be transmitted to all the terminals 2a to 2d again.

  In the above, for convenience of explanation, in FIGS. 10A and 10B, the editing processing terminal 2a and the terminal 2b of the terminal 2b each perform editing operations, but these editing operations can be performed simultaneously. It is. When the editing work is performed at each terminal 2, the update data is transmitted to the document management server 1 one by one, and the display file is transmitted to all the terminals 2 again. For this reason, from each terminal 2, the update work (update data) of the other terminals 2 is reflected on the display screen of the terminal 2 one by one. Therefore, even if all users are editing themselves, The editing contents of the terminal can be grasped in real time.

  FIG. 17 shows a display screen example (part 2) of the terminals 2a to 2d. As shown in the figure, editing work is in progress at the terminal 2a, and editing work is also in progress at the terminal 2b. At this time, since the same image is displayed on each terminal, all the users can grasp the editing contents of other terminals in real time even when they are editing.

(Step D)
FIG. 18 is a sequence diagram for explaining an update (save) process of a document file to be edited.

  S41: The terminal 2 operates a document editing end to end the editing mode. For example, in each terminal 2, editing can be ended from the “Edit” menu (FIG. 5).

  S42: Using the document editing end operation as a trigger, the terminal 2 sends a document editing end notification to the document management server 1. About S41-42 above, each of terminal 2a-2d implements. This is because the editing work is ended at all the terminals 2a to 2d.

  S43: When the document management server 1 (save unit 108) receives an editing end notification for the electronic document “XXX.jpeg” from all the terminals 2a to 2d that have requested editing, the layer file management unit 104 stores the notification. -The edited electronic document is generated by superimposing and synthesizing the image file of the managed electronic document and the working file for all terminals.

  FIG. 19 shows a layer file example (No. 4) at the time of notification of the end of editing. If it is in the state shown in FIG. 19 when the editing end notification is received, “image file X”, “work file for terminal 2a”, “work file for terminal 2b”, “for terminal 2c” A total of five files, "work file for" and "work file for terminal 2d", are transparently superimposed and combined into one file. The synthesized one file is the edited electronic document “XXX.jpeg” (FIG. 16).

  S44: The document management server 1 (storage unit 108) replaces the electronic document “XXX.jpeg” after editing with the electronic document “XXX.jpeg” before editing, and stores it in the document DB. In short, the editing (update) of the electronic document “XXX.jpeg” is completed after reflecting all the editing contents from all the terminals 2a to 2d.

  The information processing of the document management system 100 according to the present embodiment has been described above. Conventionally, in a meeting place, a whiteboard, a blackboard, etc. are provided in the center of the front of the meeting room, and the presenter writes the agenda and meeting contents on the whiteboard by hand using a pen on the whiteboard. It has progressed. Also, sometimes multiple participants discussed while looking at the whiteboard's writing, and several participants were able to write on the whiteboard concurrently in parallel. Similarly, in the document management system 100 according to the present embodiment, editing operations can be performed in parallel on a plurality of terminals 2. Since each terminal 2 displays the same image in real time, all users discuss while watching the editing contents of other terminals, and while giving ideas, a plurality of users can simultaneously It is possible to write on the display image of the terminal 2.

[Modification]
Hereinafter, modifications of the above-described embodiment will be described. The document management server 1 generates a layer file (an image file of an electronic document, a work file for each terminal) in the layer file generation unit 103, and then stores and manages the layer file in the layer file management unit 104. did. Thereafter, the display file generation unit 10 generates a display file by superimposing and synthesizing all layer files. However, as a modification, the terminal 2 can be configured to have a function corresponding to the display file generation unit 105.

  In this case, the document management server 1 transmits the layer file to all terminals 2 without synthesizing the layer file. That is, the layer file management unit 104 of the document management server 1 generates and stores and manages a total of five files including an image file (one) of the electronic document and work files (four) for the terminals 2a to 2d. If it is, the document management server 1 transmits these five files to all the terminals 2 as they are. The terminal 2 displays the received five files as a single file by transparently superimposing the files on the viewer (for example, the same as FIG. 5).

  When the editing work is performed on the terminal 2 side, the update data is transmitted to the document management server 1, and the document management server 1 updates only the work file of the corresponding terminal, and only the updated work file is transmitted to all terminals 2. Send. All the terminals 2 replace the received work file with a work file associated with the work file. Specifically, when editing work is performed at the terminal 2a, update data is transmitted to the document management server 1, and the document management server 1 updates only the work file of the terminal 2a, and the updated work file for the terminal 2a. Is transmitted to all terminals 2. All the terminals 2 replace the already held work file for the terminal 2a with the newly received work file for the terminal 2a (for example, the same as FIG. 17).

  As a result, the same results and effects as those of the above-described embodiment can be obtained, the communication amount can be further reduced, and the display processing on each terminal 2 side can be performed at high speed.

[Supplement: How to save]
In step D of the above-described embodiment, when the document management server 1 (save unit 108) receives an edit end notification for the electronic document “XXX.jpeg” from all the terminals 2a to 2d that have requested edit start, In step S43, the edited electronic document is generated by superimposing and synthesizing the image file of the electronic document stored and managed by the layer file management unit 104 and the work file for all terminals (S43). Thereafter, the document management server 1 (storage unit 108) replaces the electronic document “XXX.jpeg” after editing with the electronic document “XXX.jpeg” before editing and stores it in the document DB (S44).

  Further, the document management server 1 (save unit 108) separately stores the work files for all terminals in the document DB in association with each terminal. For example, refer to FIG. 19 again. If the editing end notification is received and it is in the state shown in FIG. 19, first, “image file X” is stored in the document DB. In addition, a total of four work files, “work file for terminal 2a”, “work file for terminal 2b”, “work file for terminal 2c”, and “work file for terminal 2d” are: These are stored separately in the document DB in association with each terminal.

  By saving the work file for each terminal in this way, it becomes possible to confirm the edited contents edited by each terminal for each terminal. That is, for example, when any one of the terminals 2a to 2d wants to confirm the editing contents performed by the terminal 2a, the document management server 1 sets the “image file X” and “work file for the terminal 2a” to 2 The two are superimposed transparently and combined into one file. Then, by transmitting (providing) this combined one file to the terminal, the user can specifically confirm only the editing contents performed by the terminal 2a.

  As described above, the same electronic document can be edited simultaneously in parallel by storing the document image file and the work file for all terminals in the document DB in association with each terminal. In addition, it is possible to individually check the editing contents performed for each terminal.

[Summary]
As described above, in the document management system 100 according to the present embodiment, editing operations can be performed simultaneously on a plurality of terminals 2. Since each terminal 2 displays the same image in real time, all users discuss while watching the editing contents of other terminals, and while giving ideas, a plurality of users can simultaneously It is possible to write on the display image of the terminal 2.

  In other words, according to the present embodiment, when a single electronic document is edited by a plurality of users, each user can perform his / her own editing work, as well as the editing contents performed concurrently by other users. It is possible to provide a document management device that can be browsed. Note that the present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims.

DESCRIPTION OF SYMBOLS 100 Document management system 1 Document management server 2 Terminal 3 Network 11 CPU
12 ROM
13 RAM
DESCRIPTION OF SYMBOLS 14 Auxiliary storage device 15 Storage medium reader 16 Input device 17 Display device 18 Communication device 101 Storage unit 102 Document file providing unit 103 Layer file generation unit 104 Layer file management unit 105 Display file generation unit 106 Transmission unit 107 Update unit 108 Save Section 201 Viewer section 202 Editing section

JP 06-004534 A JP 2005-267021 A

Claims (6)

A document management apparatus that is connected to a plurality of terminals for editing an electronic document and manages the electronic document stored in a document storage unit,
Layer that generates an image file of the electronic document and a working file having the same image area as the image file of the electronic document for each of the terminals upon receiving an edit start request for the electronic document from the plurality of terminals File generation means;
Layer file management means for storing and managing the image file of the electronic document and the working file associated with each terminal;
Display for generating a first display file by superimposing and synthesizing the image file of the electronic document stored and managed by the layer file management means and the work file for every terminal File generation means;
Transmitting means for transmitting the generated first display file to the plurality of terminals;
When any of the terminals edits the first display file and receives update data from the terminal, the update data is added to the work file stored and managed in association with the update request source terminal. A working file update means for updating the working file;
Have
The display file generation means includes work files for all terminals including the image file of the electronic document stored and managed by the layer file management means and the work file updated by the work file update means. Are combined to generate a second display file,
The transmission means transmits the second display file to the plurality of terminals;
Document management device characterized by the above. The display file generation unit is configured to superimpose and synthesize the image area of the image file of the electronic document and the image area of the work file for every terminal, thereby rendering the image area in all the image areas. Generating a display file containing all images,
The document management apparatus according to claim 1. When an editing end notification for one electronic document is received from the plurality of terminals that have made the editing start request, the image file of the electronic document stored and managed by the layer file management means, and the work file update An edited electronic document is generated by transparently superimposing work files for all terminals including the work file updated by the means, and the edited electronic document is replaced with the first electronic document. Storage means for storing in the document storage unit;
The document management apparatus according to claim 1, further comprising: The storage means stores all the electronic document image files stored and managed by the layer file management means in the document storage unit, and further includes all the work files updated by the work file update means. Each working file is stored in the document storage unit in association with each terminal,
The display file generation unit superimposes and synthesizes the image file of the electronic document stored in the document storage unit and the one work file associated with any one terminal. , Generate a third display file,
The transmission means transmits the third display file to the plurality of terminals;
The document management apparatus according to claim 3. A document editing method in a document management apparatus connected to a plurality of terminals for editing an electronic document and managing the electronic document stored in a document storage unit,
Layer that generates an image file of the electronic document and a working file having the same image area as the image file of the electronic document for each of the terminals upon receiving an edit start request for the electronic document from the plurality of terminals File generation procedure,
A layer file management procedure for storing and managing the image file of the electronic document and the working file associated with each terminal;
Display for generating a first display file by superimposing the image file of the electronic document stored and managed by the layer file management procedure and the working file for every terminal. File generation procedure,
A transmission procedure for transmitting the generated first display file to the plurality of terminals;
When any of the terminals edits the first display file and receives update data from the terminal, the update data is added to the work file stored and managed in association with the update request source terminal. A work file update procedure for updating the work file,
Superimposing and combining the image file of the electronic document stored and managed by the layer file management procedure and the work file for every terminal including the work file updated by the work file update procedure. A second display file generation procedure for generating a second display file,
A second transmission procedure for transmitting the second display file to the plurality of terminals;
A document editing method comprising:   A program for causing a computer to execute the document editing method according to claim 5.

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