JP2014044564A - Document management device, document management system, document management method, and document management program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document management device capable of easily and accurately taking over annotation information.SOLUTION: A document management device 10 according to the invention comprises: an electronic document storage unit 1 for storing electronic document; an annotation information storage unit 2 for storing annotation information in which a position in the stored electronic document and an annotation are associated with each other; a position detection unit 3 for, when the stored electronic document is updated, detecting a position corresponding to the annotation information in the updated electronic document; and an annotation information update unit 4 for updating a position of the stored annotation information on the basis of the detected position.

Description

  The present invention relates to a document management apparatus, a document management system, a document management method, and a document management program, and more particularly to a document management apparatus, a document management system, a document management method, and a document management program for managing an electronic document having annotation information.

  With the recent development of mobile terminals, the introduction of mobile terminals in enterprises is increasing. One of the objectives is to digitize business manuals that have been managed based on paper, and to improve the efficiency and reduce costs through paperless operations. The computerized business manual has the following characteristics.

  As a first characteristic, an electronic business manual is read-only. Here, the electronic business manual is mainly in PDF (Portable Document Format) format. The user can browse the PDF-format business manual, write notes, underline, set markers, set sticky notes, and save them, but cannot change the document contents themselves.

  As a second characteristic, the business manual is periodically supplemented and revised according to the business system. The supplementary points are managed as a list of revision history.

  As the third characteristic, the latest business manual is downloaded from the server to the mobile terminal by the user.

  For example, Patent Documents 1 to 3 are known as related techniques. Patent Documents 1 and 2 describe that various documents are described in a plurality of layers of a PDF file and stored in a server.

JP 2007-293655 A JP 2007-280217 A JP 2009-205248 A

  In related technologies such as Patent Documents 1 and 2, many electronic documents such as business manuals are created and stored in a PDF file format. A user downloads a PDF file to his or her PC or mobile terminal, and saves and uses memo writing, underline, marker setting, and tag setting for the file to clarify the important points.

  Usually, when a business manual is supplemented or revised, a user downloads the latest data and replaces it with an old manual.

  However, the related technologies such as Patent Documents 1 and 2 do not consider the case where the contents of the electronic document are changed. Therefore, the memo writing, underline, marker, etc., which are uniquely set in the old business manual, It is not reflected in the manual, and there is a problem that there is no clear moving means for taking over the annotation information.

  Annotation information such as memo writing, underline, and marker is set based on the work and self-learning experienced by the individual user, so lack of annotation information makes learning know-how less efficient and decreases learning efficiency The problem arises. Also, when an electronic business manual is deleted by mistake, the annotation information is similarly lost, and the same problem occurs. Even if it can be restored from the backup, it is an electronic document at the backup point, and the annotation information may be lost.

  Patent Document 3 describes that the current annotation position information is acquired by comparing the current annotation (annotation information) with the previous version of the annotation. The related technology such as Patent Document 3 has a problem in that the processing for taking over the annotation information is complicated because it is necessary to store and compare the information of the previous version.

  Therefore, the related technology has a problem that it is difficult to easily and accurately take over annotation information when an electronic document is changed.

  An object of the present invention is to provide a document management apparatus, a document management system, a document management method, and a document management program for solving such problems.

  A document management apparatus according to the present invention includes an electronic document storage unit that stores an electronic document, an annotation information storage unit that stores annotation information in which a position in the stored electronic document is associated with an annotation, and the stored When the electronic document is updated, a position detection unit that detects a corresponding position of the annotation information in the updated electronic document, and updates the position of the stored annotation information based on the detected position An annotation information updating unit.

  A document management system according to the present invention is a document management system including a document management device and a terminal device, and the document management device includes an electronic document storage unit that stores an electronic document, and an internal content of the stored electronic document. An annotation information storage unit that stores annotation information that associates a position and an annotation with each other, and a position detection that detects a corresponding position of the annotation information in the updated electronic document when the stored electronic document is updated And an annotation information update unit that updates the position of the stored annotation information based on the detected position, and the terminal device includes the updated electronic document and the updated annotation. A display unit that obtains information and displays it in an overlapping manner is provided.

  In the document management method according to the present invention, an electronic document is stored in an electronic document storage unit, annotation information in which a position in the stored electronic document is associated with an annotation is stored in the annotation information storage unit, and the stored When the electronic document is updated, the position of the annotation information corresponding to the updated electronic document is detected, and the position of the stored annotation information is updated based on the detected position. .

  A document management program according to the present invention is a document management program for causing a computer to execute a document management process. The document management procedure stores an electronic document in an electronic document storage unit, and stores the electronic document in the stored electronic document. Is stored in the annotation information storage unit, and when the stored electronic document is updated, the corresponding position of the annotation information is detected in the updated electronic document, Based on the detected position, the position of the stored annotation information is updated.

  According to the present invention, it is possible to provide a document management apparatus, a document management system, a document management method, and a document management program that can easily and accurately inherit annotation information.

It is a block diagram for demonstrating the main characteristics of the document management apparatus which concerns on embodiment. 1 is a configuration diagram illustrating a configuration of a document management system according to Embodiment 1. FIG. FIG. 3 is a configuration diagram illustrating a hardware configuration that implements the document management system according to the first embodiment. 1 is a configuration diagram illustrating a configuration of a document management server according to Embodiment 1. FIG. It is a figure which shows an example of the annotation information set to the electronic document which concerns on Embodiment 1. FIG. 6 is a diagram showing an example of document management information of an electronic document according to Embodiment 1. FIG. 6 is a diagram illustrating an example of document history information of an electronic document according to Embodiment 1. FIG. It is a figure which shows an example of the annotation information of the electronic document which concerns on Embodiment 1. FIG. It is a figure which shows an example of the outline information of the electronic document which concerns on Embodiment 1. FIG. It is a figure which shows an example of the user information of the electronic document which concerns on Embodiment 1. FIG. FIG. 5 is a diagram for explaining an overview of a crawl process according to the first embodiment. 6 is a diagram illustrating an example of an inverted index according to Embodiment 1. FIG. 6 is a diagram illustrating an example of metadata according to Embodiment 1. FIG. FIG. 6 is a diagram for describing an overview of position information update processing according to Embodiment 1; 3 is a flowchart showing an electronic document update process according to the first embodiment. It is a figure which shows an example of the annotation information of the electronic document which concerns on Embodiment 1. FIG. 6 is a diagram for explaining annotation information storage processing according to Embodiment 1. FIG. 6 is a diagram showing a display example of an annotation information download selection screen according to Embodiment 1. FIG. It is a figure which shows the inheritance image of the annotation information which concerns on Embodiment 1. FIG. It is a figure for demonstrating the kind of annotation information which concerns on Embodiment 1. FIG.

(Outline of the embodiment)
Prior to the description of the embodiment, an outline of features of the embodiment will be described. FIG. 1 shows a main configuration of the document management apparatus according to the embodiment.

  As shown in FIG. 1, the document management apparatus 10 includes an electronic document storage unit 1, an annotation information storage unit 2, a position detection unit 3, and an annotation information update unit 4. The electronic document storage unit 1 is a storage unit that stores electronic documents. The annotation information storage unit 2 is a storage unit that stores annotation information that associates a position in a stored electronic document with an annotation. When the stored electronic document is updated, the position detection unit 3 detects the position corresponding to the annotation information in the updated electronic document. The annotation information update unit 4 updates the position of the stored annotation information based on the detected position.

  As described above, the position in the electronic document is associated with the annotation information, and when the electronic document is updated, the position of the annotation information is detected from the updated electronic document, and the annotation information is updated. Thereby, when the electronic document is updated, the annotation information can be reliably inherited with high accuracy. In addition, since it is not necessary to store and compare the information of the previous version, the annotation information can be easily taken over.

(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 2 shows the configuration of the document management system according to the present embodiment.

  As shown in FIG. 2, the document management system 100 includes a document management server 10, a mobile terminal 20, and a personal computer (PC) 30 that are communicably connected via a network 40. The network 40 is, for example, the Internet, and is a network that can transmit information such as an electronic document between the document management server 10, the mobile terminal 20, and the PC 30. The network 40 may be a wired network or a wireless network.

  The document management server (document management apparatus) 10 manages an electronic document (PDF file) and its annotation information in a database on the document management server 10. The document management server 10 performs a process of taking over the annotation information when the electronic document is updated.

  The mobile terminal 20 and the PC 30 are examples of operation terminals that a user operates on an electronic document and annotation information. The user downloads an electronic document from the document management server 10 to his / her PC 30 or mobile terminal 20 and displays it on the display unit. Then, the user operates the PC 30 or the mobile terminal 20 to set annotation information in the electronic document.

  For example, the annotation information includes annotations corresponding to characters in the document such as markers, underlines, highlights, and strikethroughs as shown in FIG. Also, an annotation corresponding to the absolute position in the document, such as freehand drawing as shown in FIG. 20B, is included. When the user sets the annotation information on the PDF file, the annotation information is uploaded to the document management server 10 and stored in the database of the document management server 10.

  Further, when the electronic document stored in the document management server 10 is updated, the annotation information is updated. The mobile terminal 20 and the PC 30 download the updated electronic document and annotation information, thereby displaying the updated electronic document and the inherited annotation information on the display unit.

  The document management server 10 includes a computer device such as a workstation that operates as a server device. The mobile terminal 20 and the PC 30 are configured by a computer device that operates as a client device. FIG. 3 shows an example of a hardware configuration for realizing the document management server 10, the mobile terminal 20, and the PC 30. Note that the document management server 10, the mobile terminal 20, and the PC 30 can be configured by a plurality of computers instead of a single computer.

  As shown in FIG. 3, the document management server 10, the mobile terminal 20, and the PC 30 are configured by a general computer device 200. The computer device 200 includes a central processing unit (CPU) 201 and a memory 204. The CPU 201 and the memory 204 are connected to a hard disk device (HDD) 205 as an auxiliary storage device via a bus.

  The computer device 200 is a user interface hardware, for example, for presenting a user with input devices 202 such as a pointing device (mouse, joystick, etc.) and a keyboard, and visual data such as a GUI. A display device 203 such as a CRT or a liquid crystal display.

  A storage medium such as the HDD 205 can store a program for executing the functions of the document management server 10, the mobile terminal 20, and the PC 30 by giving instructions to the CPU 201 and the like in cooperation with the operating system. For example, a program (document management program) for executing processing to be described later is stored in FIG. This program is executed by being loaded into the memory 204.

  The computer device 200 also has an input / output interface (I / O) 206 and a NIC (Network Interface Card) 207 for connecting to an external device. For example, the computer apparatus 200 includes a USB or the like as the input / output interface 206, and includes an Ethernet (registered trademark) card or the like as the NIC 207 for connecting to the network 40.

  FIG. 4 is a block diagram showing a configuration of the document management server according to the present embodiment. The document management server 10 includes an electronic document database (hereinafter referred to as an electronic document DB) 11, an annotation information store database (hereinafter referred to as an annotation information store DB) 12, and an electronic document system management as a storage unit (storage unit) realized by an HDD or the like. A database (hereinafter, electronic document system management DB) 13 is provided.

  The electronic document DB (electronic document storage unit) 11 stores a business manual (electronic document) actually converted to PDF. Here, the PDF file is a file downloaded by the user to his / her PC or mobile terminal, and notes are written on the terminal, underline, marker, etc. are set on the PDF file as annotation information.

  The annotation information store DB (annotation information storage unit) 12 stores unique annotation information associated with the user. In other words, the annotation information personally set by the user is uploaded and stored in the annotation information store DB 12. FIG. 5 shows an example of annotation information stored in the annotation information store DB 12. The annotation information is associated with the position in the business manual (electronic document) stored in the electronic document DB 11. In the example of FIG. 5, the PDF file has outline information as position information. The annotation information includes an annotation ID for identifying the annotation information, an outline ID for identifying the position, an annotation type for identifying the type of annotation, and the content of the annotation.

  The electronic document system management DB 13 stores information necessary for managing electronic documents. Specifically, in the electronic document system management DB 13, user information, electronic document ID, ID for managing annotation information, related information such as which annotation is set at which position of which electronic document, document change Stores XML-formatted annotation information such as history information.

  6 to 10 show examples of document management information, document history information, annotation information, outline information, and user information stored in the electronic document system management DB 13.

  As shown in FIG. 6, the document management information includes the electronic document ID uniquely assigned (assigned) to the electronic document, the document name that is the title name of the electronic document, the creation date of the electronic document, and the creator of the electronic document. include. The electronic document ID is newly assigned when the electronic document is revised. The document management information is information for managing electronic documents stored in the electronic document DB 11 and is generated for each electronic document.

  As shown in FIG. 7, the document history information includes an electronic document ID and an electronic document ID before supplementation and revision. The document history information is information for managing the update history of the electronic document stored in the electronic document DB 11 and is generated every time the electronic document is updated.

  As shown in FIG. 8, the annotation information is set for each annotation, and is an annotation ID that is position information in the electronic document, an annotation type that is an annotation type such as a marker, a double line, a memo, and a drawing, and a marker. The contents of the body of the document with annotations such as the annotation content that is the content of the comment attached with the memo, the annotation coordinates indicating the X-axis and Y-axis coordinates of the annotation start point and end point, and the electronic document of the electronic document in which the annotation is set The ID, the color set in the annotation, the user ID of the user who set the annotation, and the outline ID of the outline in which the annotation information is set are included. The annotation information (annotation management information) in FIG. 8 is information for managing the annotation information stored in the annotation information store DB 12 in FIG. 5 and is generated for each annotation in the annotation information store DB 12.

  As shown in FIG. 9, the outline information includes an outline ID that is a unique ID set for the outline in the electronic document, outline content that is the body of the outline, and coordinates of the X-axis and Y-axis of the start point of the outline. Outline coordinates are included. The outline ID is set for chapters, sections, and items in the electronic document. The outline information is information for managing the outline of the electronic document stored in the electronic document DB 11, and is generated for each outline in the electronic document.

  As shown in FIG. 10, the user information includes a user ID that is an ID for user management, a user name and a password for logging in by the user. For example, when accessing the document management server 10 from the mobile terminal 20 and the PC 30, if the user inputs a user name and password and the user information matches, the authentication is successful, and the user uses the document management server 10. It becomes possible.

  The document management server 10 includes a document management processing unit 14, a document search processing unit 15, an annotation information processing unit 16, an annotation search processing unit 17, and an annotation generation process as processing units realized by the CPU 201 executing a program. A unit 18 and a user request processing unit 19 are provided.

  The document management processing unit 14 uniquely assigns (assigns) an ID to the electronic document when the electronic document is newly created, supplemented, or revised, and registers the electronic document ID in the electronic document system management DB 13. Also, document history information is registered.

  The document search processing unit 15 includes a crawler 151a (search information generation unit) that crawls an electronic document and generates a transposed index and metadata in order to search for sentences, words, and outlines in the electronic document. Yes. FIG. 11 shows a crawler (crawling process) 151 a executed by the document search processing unit 15. The crawler 151a refers to the electronic document 111 stored in the electronic document DB 11, and generates a transposed index 152 and metadata 153. The transposed index 152 is an index for tracing a document from a word, and associates a word with an electronic document. The metadata 153 is a document title, text, data, and the like, and tag information indicating each item is associated with the contents of each item.

  FIG. 12 shows an example of the transposed index generated by the crawl process. The transposed index 152 includes a text index 152a and an outline index 152b. The body index 152a is an index for searching the electronic document from the body of the electronic document, and the word of the body is associated with the document ID of the electronic document. The outline index 152b is an index for searching an electronic document from the outline of the electronic document, and an outline word is associated with the document ID of the electronic document.

  FIG. 13 shows an example of metadata generated by the crawl process. In this example, the metadata 153 includes document ID, title, and creator information as tag information for identifying an electronic document, and includes outline ID, heading, position information, and text as tag information for identifying an outline. It is. For example, the outline ID is information for identifying the position in the document by the outline of the document, and the position information including the X coordinate and the Y coordinate is information for identifying the position by the absolute position in the document.

  The document search processing unit 15 has a searcher 151b (position detection unit) that returns position information of a location where words and outlines match in an electronic document in response to a search request. More specifically, the searcher 151b of the document search processing unit 15 searches the position information of the annotation information from the sentence of the new electronic document based on the search word passed from the annotation search processing unit 17. The search uses outlines and text search in sentences. If the corresponding content exists in the sentence, the position information of the annotation information is extracted. The document search processing unit 15 passes the extracted information to the annotation information processing unit 16.

  The annotation information processing unit 16 performs processing for storing the annotation information stored in the annotation information store DB 12 as XML (Extensible Markup Language) data in the electronic document system management DB 13 and extracting the XML data. Further, the annotation information processing unit 16 (annotation information update unit) performs an update process of the annotation position information based on the information extracted by the document search processing unit 15.

  The annotation search processing unit 17 passes the search request to the document search processing unit 15 using the document ID, user ID, and annotation information stored in the electronic document system management DB 13 as search keys. In other words, the annotation search processing unit 17 passes data as a search term to the document search processing unit 15 based on the XML data of the annotation information stored in the electronic document system management DB 13.

  As shown in FIG. 14, the main search process is performed by the searcher 151 b of the document search processing unit 15. When a search word such as a word, sentence, or outline information is input, the searcher 151b searches the document ID with reference to the transposed index 152 using the search word as a key (S11). For the text search term, the text index 152a is referred to, and for the outline search word, the outline index 152b is referred to.

  Subsequently, the searcher 151b refers to the electronic document with the retrieved document ID, searches for a position using the search word as a key (S12), and generates outline position information and text position information (S13). Subsequently, the searcher 151b updates the position information included in the outline information based on the generated position information of the outline, and updates the position information included in the annotation information based on the position information of the text (S14). Further, the searcher 151b updates the position information included in the annotation information based on the updated position information of the outline information (S15).

  In the configuration of the document management server 10 in FIG. 4, the annotation generation processing unit 18 generates annotation information and stores it in the annotation information store DB 12. The user request processing unit 19 performs processing for extracting the annotation information requested by the user from the PC 30 or the mobile terminal 20, and processing for passing the extracted annotation information to the user. That is, the user request processing unit 19 extracts annotation information from the annotation information store DB based on a request for downloading annotation information from the PC 30 or the mobile terminal 20, and provides it to the PC 30 or the mobile terminal 20. The user browses the PDF file on the PC 30 or the mobile terminal 20 in a format in which the personally set annotation is reflected.

  With the configuration shown in FIG. 4, when the business manual is supplemented or revised in the document management server 10, it is possible to reflect the existing annotation information in the new business manual.

  Next, the operation of the document management server 10 will be described. It is assumed that the user holds an authentication ID (user name, password) for each user, and the authentication ID is used for remote access authentication. The electronic document composed of the PDF file is stored in the electronic document DB 11 on the document management server 10, and an electronic document ID is assigned by the document management processing unit 14. The electronic document ID is managed by the electronic document system management DB 13. The document search processing unit 15 provides the function of the searcher 151b and the function of the crawler 151a so that the electronic document can be searched for the text. The crawler 151a generates a transposition index and metadata for the electronic document. The PDF file can be downloaded from the PC 30 or the mobile terminal 20, and the PDF file can be downloaded and stored in the PC 30 or the mobile terminal 20 of itself.

  The newly created electronic document (PDF) is stored in the electronic document DB 11. The annotation information processing unit 16 stores the annotation information created by the user based on the electronic document in the annotation information store DB 12, and stores the XML data of the annotation information in the electronic document system management DB 13. Based on the XML data of the annotation information stored in the electronic document system management DB 13, the annotation search processing unit 17 passes the data as a search term to the document search processing unit 15, and the searcher 151b extracts the annotation information from the sentence of the new electronic document. Search for location information. The search uses outlines and text search in sentences. If the corresponding content exists in the sentence, the position information of the annotation information is extracted. The extracted information is transferred to the annotation information processing unit 16, and the annotation information processing unit 16 updates the information in the electronic document system management DB 13. Based on the annotation information whose position information has been updated, a new annotation is generated by the annotation generation processing unit 18 and stored in the annotation information store DB 12. The user request processing unit 19 extracts the annotation information from the annotation information store DB 12 based on a request for downloading the annotation information from the user's PC 30 or the mobile terminal 20, and provides it to the user's PC 30 or the mobile terminal 20.

  Further, the operation (document management method) of the document management system 100 including the document management server 10 will be described with reference to the flowchart of FIG.

  First, an electronic document (PDF file) is created in advance (S101), and the created electronic document is stored in the electronic document DB 11 (S102). For example, the electronic document is a business manual or the like, and is created by another system or the like. The document management server 10 stores this electronic document in the electronic document DB 11.

  Subsequently, the document management processing unit 14 stores the document information in the electronic document system management DB 13 (S103). When the PDF file is created and stored, the document management processing unit 14 assigns (assigns) a unique ID to the electronic document, generates the document management information shown in FIG. 6 and stores it in the electronic document system management DB 13. Manage document information.

  Subsequently, the document search processing unit 15 (crawler 151a) creates a transposed index and metadata for the created electronic document as a crawl target (S104). As shown in FIG. 12, the transposed index includes a word and an index of each outline, and as shown in FIG. 13, the metadata includes outline position information (coordinate information).

  Subsequently, in response to a user operation, the PC 30 or the mobile terminal 20 downloads an electronic document of a PDF file from the document management server 10 (S105), and sets unique annotation information (S106). As shown in FIG. 2, the PC 30 or the mobile terminal 20 downloads an electronic document and stores the electronic document and annotation information in the storage unit of the own device.

  Subsequently, the annotation information set by the PC 30 or the mobile terminal 20 is uploaded to the document management server 10 (S107). The user request processing unit 19 extracts the annotation information as XML, uploads it to the server from the PC 30 or the mobile terminal 20, and stores it in the annotation information store DB 12.

  Here, the data to be uploaded includes information for identifying the annotation information (user name, document ID, ID for each annotation, specific annotation information). FIG. 16 shows an example of the annotation information. The document ID and title for identifying the document, the outline ID for identifying the position, the annotation ID for identifying the annotation, the annotation type, the annotation content, the annotation creator , Position information such as coordinates, and creators of the entire annotation information are included.

  Subsequently, the annotation information processing unit 16 converts the annotation information, and stores the document information from the annotation information store DB 12 to the electronic document system management DB 13 (S108). As shown in FIG. 17, the annotation information processing unit 16 acquires metadata based on the annotation information stored in the annotation information store DB 12, and stores it in the electronic document system management DB 13 as XML data.

  The annotation information stored in the annotation information store DB 12 is information uploaded by the PC 30 or the mobile terminal 20, and the annotation information (annotation management information) stored in the electronic document system management DB 13 is the annotation information in the annotation information store DB 12. This information is converted into a format necessary for the server to manage the information. Although the same annotation information may be stored in the annotation information store DB 12 and the electronic document system management DB 13, it is preferable to convert the annotation information into a format that can be easily searched by the server.

  As shown in FIG. 17, when the annotation information is uploaded, the annotation information in the annotation information store DB 12 is stored in the XML format in the electronic document system management DB 13. When the annotation information in the electronic document system management DB 13 is updated, XML data is extracted and the annotation information in the annotation information store DB 12 is updated.

  Subsequently, the electronic document is updated (S109), and a new electronic document (PDF file) is stored in the electronic document DB 11 on the document management server 10 (S110). Electronic documents such as business manuals are updated (supplemented or revised) by other systems. The document management server 10 stores the updated electronic document in the electronic document DB 11 as a new file (PDF).

  Subsequently, the document management processing unit 14 stores the document information in the electronic document system management DB 13 (S111). The document management processing unit 14 assigns document IDs and stores the document history in the electronic document system management DB 13. The document search processing unit 15 performs crawl processing and stores the metadata and the transposed index in the electronic document system management DB 13. .

  Subsequently, in response to a user operation, the PC 30 or the mobile terminal 20 downloads a new electronic document (PDF file) from the document management server 10 (S112), and selects whether to take over the annotation information (S113). As shown in FIG. 18, when the electronic document is downloaded, the PC 30 or the mobile terminal 20 displays a GUI for selecting whether to download the annotation information from the document management server 10 on the display screen.

  Subsequently, in response to a user operation, the PC 30 or the mobile terminal 20 requests the document management server 10 to download necessary annotation information (S114). At that time, as shown in FIG. 2, the PC 30 or the mobile terminal 20 transmits the document ID and the user ID to the document management server 10 as parameters.

  Subsequently, the document search processing unit 15 (searcher 151b) extracts the annotation position information of the new electronic document from the data in the electronic document system management DB 13 based on the received document ID (S115). The user request processing unit 19 receives the document ID from the PC 30 or the mobile terminal 20, and the annotation search processing unit 17 searches for annotation information and passes the data to the document search processing unit 15. Then, the document search processing unit 15 searches for annotations in the document and extracts position information. For the position search, the searcher 151b performs a search process using an inverted index and metadata.

  Subsequently, the annotation information processing unit 16 updates the data in the electronic document system management DB 13 based on the extracted position information (S116). The annotation information processing unit 16 updates the location information of the annotation information stored in the electronic document system management DB 13 based on the extracted location information.

  Subsequently, in the annotation generation process 18, new annotation information is generated, and the generated annotation information is stored in the annotation information store DB 12 (S 117). The annotation generation processing unit 18 extracts the XML data stored in the electronic document system management DB 13, generates a new annotation, and stores it in the annotation information store DB 12.

  Subsequently, the document management server 10 distributes the annotation information to the requested PC 30 or mobile terminal 20 (S118). After storing the annotation information, the user request processing unit 19 selects the annotation information to be transferred from the electronic document system management DB 13, extracts the requested annotation information from the annotation information store DB 12, and transmits it to the PC 30 or the mobile terminal 20. .

  As a result, as shown in FIG. 19, the user applies the provided annotation information to complete the transfer of the existing annotation to the new electronic document (S119). That is, the annotation information set in the old business manual is updated according to the change of the new business manual, and the PC 30 or the mobile terminal 20 displays the new business manual and the updated annotation information in a superimposed manner.

  Here, a takeover method when the annotation is drawing information will be described. In order to draw a drawing, two-dimensional coordinate information is required. The annotation information is stored in coordinates (X, Y) necessary for drawing. The outline coordinates (X, Y) are also stored. The electronic document to which the annotation information is newly applied acquires the coordinate axes of the new outline from the metadata, and updates the coordinate data of the outline registered in the electronic document system management DB 13. Based on the difference data, the drawing coordinates of the annotation information are also calculated and updated.

  As described above, in this embodiment, the annotation information for the electronic document set for each user is stored on the server, and even when the electronic document is supplemented or revised, the previous annotation information can be taken over. And By storing annotation information on the server, data can be acquired from inside and outside the company, and can be downloaded and stored in a PC or mobile terminal. In this embodiment, the transposition index and metadata corresponding to the electronic document are generated, and the position of the annotation information is detected using the transposition index and metadata. Therefore, the position can be easily detected and inherited. Processing can be performed.

  Furthermore, the following effects are expected. Employees' proficiency with electronic information manuals is improved. An electronic document can retain the same flexibility as a book. It can be used for education and can be used for electronic text. It can be used for education and can be used for electronic text. Flexible restoration at the time of document deletion due to erroneous operation is possible. Even when the PC or mobile terminal is replaced, the electronic document with annotation information can be restored. By using a server, electronic documents can be downloaded from anywhere to any PC or mobile terminal.

(Other embodiments)
When there is no change in the page itself, for example, in the case of a supplement, the annotation information can be inherited as it is, so no internal processing is performed. A flag may be set as the document management information in FIG. 6 in order to make the system not to perform internal processing. For example, the revision flag is set to 2, the supplement is set to 1, and the default value is set to 0. The document management server performs takeover processing according to this flag.

  As an application of the configuration, it is also conceivable to arrange the document management server on the cloud instead of in-house. As a result, electronic documents and annotation information can be downloaded from the inside, outside, and overseas business trip destinations using the same access method, regardless of time and place.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Electronic document storage part 2 Annotation information storage part 3 Position detection part 4 Annotation information update part 10 Document management server (document management apparatus)
11 Electronic Document DB
12 Annotation information store DB
13 Electronic document system management DB
14 Document management processing unit 15 Document search processing unit 16 Annotation information processing unit 17 Annotation search processing unit 18 Annotation generation processing unit 19 User request processing unit 20 Mobile terminal 30 PC
40 Network 100 Document Management System 151a Crawler 151b Searcher 200 Computer Device 201 CPU
202 Input device 203 Display device 204 Memory 205 HDD
206 I / O
207 NIC

Claims (10)

An electronic document storage unit for storing electronic documents;
An annotation information storage unit for storing annotation information in which a position in the stored electronic document is associated with the annotation;
When the stored electronic document is updated, a position detection unit that detects a corresponding position of the annotation information in the updated electronic document;
An annotation information update unit that updates the position of the stored annotation information based on the detected position;
A document management apparatus comprising: A search information generating unit that generates a transposed index that associates a search term with the electronic document based on the stored electronic document;
The position detecting unit extracts the search word included in the annotation information, and specifies the electronic document corresponding to the search word with reference to the transposed index;
The document management apparatus according to claim 1. The search information generation unit generates metadata that associates tag information indicating a position in the stored electronic document and tag information indicating a document content of the position,
The position detection unit refers to the metadata of the identified electronic document and detects a position corresponding to the annotation information;
The document management apparatus according to claim 2. The annotation information includes an annotation corresponding to character information included in the electronic document,
The detected position is outline identification information for identifying an outline in the electronic document.
The document management apparatus according to any one of claims 1 to 3. The annotation information includes an annotation corresponding to an absolute position in the electronic document,
The position to be detected is coordinate information indicating an absolute position in the electronic document.
The document management apparatus according to any one of claims 1 to 4. The annotation information includes drawing information drawn at the absolute position.
The document management apparatus according to claim 5. A document management system comprising a document management device and a terminal device,
The document management apparatus includes:
An electronic document storage unit for storing electronic documents;
An annotation information storage unit for storing annotation information in which a position in the stored electronic document is associated with the annotation;
When the stored electronic document is updated, a position detection unit that detects a corresponding position of the annotation information in the updated electronic document;
An annotation information update unit that updates the position of the stored annotation information based on the detected position;
The terminal device
A display unit that obtains and displays the updated electronic document and the updated annotation information;
Document management system. Store the electronic document in the electronic document storage unit,
Storing the annotation information in which the position in the stored electronic document is associated with the annotation in the annotation information storage unit;
If the stored electronic document is updated, detecting a corresponding position of the annotation information in the updated electronic document;
Updating the position of the stored annotation information based on the detected position;
Document management method. Obtaining the updated electronic document and the updated annotation information and displaying them on a display unit;
The document management method according to claim 8. A document management program for causing a computer to execute document management processing,
The document management procedure is:
Store the electronic document in the electronic document storage unit,
Storing the annotation information in which the position in the stored electronic document is associated with the annotation in the annotation information storage unit;
If the stored electronic document is updated, detecting a corresponding position of the annotation information in the updated electronic document;
Updating the position of the stored annotation information based on the detected position;
Document management program.

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