JP2004185634A - Information management device and information management program storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information management device automatically splitting a large-sized information file for linking and transferring the large-sized information file, and to provide an information management program storage medium storing its information management program. <P>SOLUTION: The information management device 100 manages a logical structure information file formed by arraying a plurality of header information-attached paragraph information and transmits the logical structure information file in response to transmission request. The information management device 100 comprises: a file splitting means 201 preparing a header management file including the header information and a link by extracting the header information from the logical structure information file and preparing the link to the paragraph information, and also preparing a plurality of paragraph files including each of the paragraph information, respectively; and a transmission control means 202 transmitting the header management file in response to the transmission request of the logical structure information file and transmitting the paragraph files in response the transmission request based on the link included in the header management file. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to an information management device that manages an information file, and an information management program storage medium that stores an information management program that manages an information file.

  In recent years, with the development of computer and communication technology and the progress of document description languages such as HTML (Hyper Text Markup Language), general users have access to a large amount of information stored in a server. It is becoming increasingly common to search for information to obtain and obtain desired information via various networks such as telephone lines and LANs. With the recent development of multimedia, information to be communicated is not only text information, but also so-called hypertext including still images, movies, sounds, etc., and the size of information files is becoming increasingly large There is a tendency. Therefore, the transfer of the information file requires a long time, and the occupation rate of the communication line per user of the communication network tends to increase.

  In order to solve these problems, the information file is divided into small unit information files, and a single file transfer unit can be reduced by embedding a hyperlink indicating the context of the unit information file in each unit information file. Has been done. However, in this method, when the user creates an information file, the information file is created while being aware of the file division, and after the information file is created, the file division work is performed and the divided individual files are recombined at the time of reading. It is necessary to perform the operation of creating the index information, and the load on the information file creator is large.

  Further, even if the size of an information file containing information to be referred to is large, it is not necessary to transfer the entire information file. There is also a problem that there is no other method than transferring the entire information file.

  FIG. 14 is a schematic diagram showing a configuration of a conventional information providing system using WWW.

  As shown in FIG. 14, in a conventional information providing system using WWW (World Wide Web), a WWW server and a client computer are connected by a network such as a LAN or a public telephone line, and an information file is stored on the WWW server side. The WWW server transfers an information file desired by a user via a network in response to a transmission request from a client computer.

  FIG. 15 is a diagram showing the contents of an information file managed by a conventional WWW server and a display example of the information file.

  FIG. 15A shows a part of the contents of an information file “A.HTML” managed by the WWW server. This information file "A.HTML" is described in an HTML format, and starts with a <HTML> tag on the first line in FIG. 15A and ends with a </ HTML> tag on the bottom line. In the second line of the file, header information "Head1-1" of the first hierarchy corresponding to the large heading is described between tags <H1> and </ H1>, and the third line corresponds to the middle heading. Header information “head2-1” of the second hierarchy is described between tags <H2> and </ H2>, and the paragraphs corresponding to the header information, that is, the hypertext body, are described in the fourth line and below. It is described between <P> and tag </ P>.

  In the line following the end tag </ P> of the first paragraph, header information “Head1-2” and “head2-2” corresponding to the second paragraph and the paragraph are described. Third, header information corresponding to the fourth paragraph and those paragraphs are sequentially described.

  As described above, the WWW server stores logically independent unit information, that is, an information file having several types of hierarchical logical structures such as titles, headers, and paragraphs, into logical tags corresponding to the types of the unit information. That is, it is divided and managed by attaching a markup tag based on an HTML grammar such as <TITLE> </ TITLE>, <H> </ H>, <P> </ P>.

  FIG. 15B shows a case where the information file “A.HTML” on the WWW server side shown in FIG. 15A is transferred to the client computer side in response to a user request, and the WWW browser (HTML processing) on the client computer side. 3 is a display example displayed on a screen through the software. As described above, each tag is decoded, and the header information and the corresponding paragraph information are sequentially displayed.

  The contents of the screen display shown in FIG. 15B are substantially the same as the contents of the original text of the information file “A.HTML” managed by the WWW server shown in FIG. The original text is HTML-formatted and managed by the WWW server in the form of “A.HTML”, which is transferred to a client computer and edited into the original text by a WWW browser and displayed. is there.

  The file “A.HTML” shown in FIG. 15A is managed on the WWW server as follows.

  FIG. 16 is a diagram showing a description example of link information indicating the location of an information file in a conventional WWW server.

<HTML> on the first line indicates that the following document is an HTML document, and <TITLE> Home Page </ TITLE> on the second line indicates that the title of this document is “Home Page”. In the third line, <A HREF="http://www. 1.or.jp/pub/information/a.html"> Home1Page </A> defines a link destination and a link source of a so-called hyperlink. An anchor tag, in which a link source address and a link destination address are described in a URL (Uniform Resource Locator) format. That is, in the example of FIG. 16, the link source is “jp”, that is, “a.html” in the directory “pub / information” of the WWW server “www.1” of “or” (general organization) in Japan. And the link destination is Home1Page.

  As described above, by describing the address of the information file linked to the information file in the information file, a hyperlink between the information files is realized. When the user looks at the link information shown in FIG. 16 displayed on the display screen of the client computer and clicks on the “Home1Page” portion with a mouse or the like, the information file a. html is the server www. 1 is transferred to the client computer, and the information content is displayed on the screen of the client computer.

  By the way, when the WWW server transfers a file specified by a user to a client computer, the specified file a. Even if the html is a document of a very large size, the file transfer is performed with the large size, in which case a long transfer time is consumed.

  In order to solve this problem, a file may be divided into a plurality of files in advance and managed by a server. In this case, as described below, first, an index file is created prior to division, and an individual header file and a paragraph file are created based on the index file.

  FIG. 17 is a diagram showing a state of a hyperlink using a conventional index file and an individual header file.

As shown in FIG. 17, this file has a three-layer tree structure including an index file, an individual header file, and a paragraph file. The index file shown at the left end of FIG. 17 corresponds to the table of contents of the entire information file, and is converted from this index file to the paragraph file (text body) shown at the right end of FIG. A link is provided. For example, “1-1.html” is linked to the individual header file of the title “Head1-1” by the anchor tag described in the second line of the index file, and the three lines of the individual header file of the title “Head1-1” are linked. The anchor tag described in the eye indicates that “1-1.html” is linked to the paragraph file with the title “1-1”. In this way, by creating paragraph files divided into a plurality of sections and linking them, it is possible to reduce the size of each file and improve the transfer response.

  However, in order to create a file group having such a complicated structure as described above, the information creator must create divided files from the beginning and combine them to create the entire file, or collectively create the entire file. It is necessary to manually perform work such as splitting it after creating it, and it is also necessary to create index files and individual header files along with this file division work, which places a heavy burden on information creators .

Means for analyzing a logical structure of a document and creating a logical structure file describing the logical structure; assigning information constituting an input document to a plurality of cards according to the logical structure file; Is disclosed (for example, see Patent Literature 1).
JP-A-8-153111 (page 2-3, FIG. 1)

  However, the technique disclosed in Patent Document 1 has a problem that a large information file cannot be efficiently managed.

  In view of the above circumstances, an object of the present invention is to provide an information management apparatus capable of automatically dividing and linking a large-sized information file and an information management program storage medium storing the information management program. And

An information management device of the present invention that achieves the above object is an information management device that manages a logical structure information file in which a plurality of paragraph information to which header information is added is arranged.
By extracting the header information from the logical structure information file and creating a link to the paragraph information to which the header information is attached, a header management file including the header information and the link is created, and each of the paragraph information is created. File division means for creating a plurality of paragraph files including each of them, and further recording the logical structure information file name and the created header file in the management table in association with each other;
In response to the transmission request of the logical structure information file, the management table is searched, the header management file corresponding to the logical structure information file name is transmitted, and the transmission request based on the link included in the header management file is waited for. Transmission control means for transmitting a paragraph file with the link.

Here, in the information management device of the present invention, the management table is searched in response to the transmission request of the logical structure information file, and when the management table does not have a file name of the logical structure information file,
The file dividing means is:
By extracting the header information from the logical structure information file and creating a link to the paragraph information to which the header information is attached, a header management file including the header information and the link is created, and each of the paragraph management files is created. A plurality of paragraph files each containing information may be created, and the file name of the logical structure information file and the created header file may be associated with each other and recorded in the management table.

  Further, the file dividing means includes means for creating a link to the paragraph information arranged immediately before each paragraph information and a link to the paragraph information arranged immediately after each paragraph information, and stores each paragraph information. In addition, a paragraph file may be created in which these links corresponding to the respective paragraph information are stored.

Further, an information management program storage medium of the present invention that achieves the above object is executed in a computer, and stores information for managing a logical structure information file in which a plurality of paragraph information with header information are arranged. In an information management program storage medium storing an information management program to be operated as a management device,
By extracting the header information from the logical structure information file and creating a link to the paragraph information to which the header information is attached, the computer creates a header management file including the header information and the link, File dividing means for creating a plurality of paragraph files each including each paragraph information, and further recording the logical structure information file name and the created header file in a management table in association with each other;
In response to the transmission request of the logical structure information file, the management table is searched, the header management file corresponding to the logical structure information file name is transmitted, and the transmission request based on the link included in the header management file is waited for. An information management program storage medium storing an information management program that operates as an information management apparatus having transmission control means for transmitting a paragraph file linked with the link.

Here, the transmission control means of the information management program stored in the information management program storage medium of the present invention receives the transmission request of the logical structure information file, searches the management table, and stores the logical table in the management table. If there is no file name of the structure information file,
The file dividing means is:
By extracting the header information from the logical structure information file and creating a link to the paragraph information to which the header information is attached, a header management file including the header information and the link is created, and each of the paragraph management files is created. A plurality of paragraph files each containing information may be created, and the file name of the logical structure information file and the created header file may be associated with each other and recorded in the management table.

  As described above, the information management apparatus of the present invention includes a file division unit that extracts header information from an information file and creates a header management file and a plurality of paragraph files based on a logical structure. In response to the transmission request from, first send the header management file, wait for the transmission request based on the link included in the header management file, and send the paragraph file, compared to sending the entire original information file The header information can be provided to the user in a much shorter time. Furthermore, the paragraph file is also divided and the file size is reduced, so that only the portion requested to be transmitted from the client computer can be transmitted, the transmission time of the paragraph itself is reduced, and an efficient information providing system is realized. be able to. Further, since the operation of creating the header management file and the paragraph file from the original information file is all performed automatically, the problem of the burden on the information creator is solved.

  Further, the information management device of the present invention includes a partial compression unit that creates an alternative file by compressing the paragraph information portion except for the header information in the information file. The substitute file created by the partial compression unit can be transmitted, and the information can be provided to the user in a much shorter time than when the entire original information file is transmitted.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 is a schematic diagram of an information management device common to each embodiment of the present invention.

  As shown in FIG. 1, this information management device 100 manages a logical structure information file and manages client computers 102a, 102b,. . . Are transmitted as a server computer having a WWW server function of transmitting a logical structure information file to clients 102a, 102b,... Via a network 101 in response to a transmission request from.

  The information management device 100 is provided with an information management program storage medium 200a in a CD-ROM format storing an information management program for the information management device 100. The information management program storage medium 200a is stored in the information management device 100. The information management program is incorporated in the information management device 100 by reading the information from the CD-ROM drive device into the storage device 1001 in the information management device 100.

  In the following description, an example of an information management apparatus using a distributed database system for mutually communicating multimedia information using WWW, that is, hypertext markup language (HTML) will be described. The present invention is not necessarily limited to an information management device using WWW, but is also applied to an information management device in a centralized system, and the language used is also limited to only the HTML language. Instead, a markup language other than the HTML language may be used.

  The computer connected to the network 101 usually has both a WWW server function and a WWW browser function, and can be operated as a server computer or a client computer in accordance with a user operation. It is configured to enable two-way communication between them.

  The information management apparatus 100 includes a file dividing unit and a transmission control unit described below.

  FIG. 2 is a schematic diagram of an information management program having a file division unit and a transmission control unit provided in the information management device according to the first embodiment of the present invention.

  The information management apparatus 100 incorporates the information management program 200 stored in the information management program storage medium 200a shown in FIG. As shown in FIG. 2, the information management program 200 includes a file division unit 201 and a transmission control unit 202. The functions of the file dividing unit 201 and the transmission control unit 202 will be described below with reference to an actual example of an information file.

  FIG. 3 is a diagram showing a document file managed by the information management apparatus according to the first embodiment of the present invention and a hierarchical tree of the document file.

  FIG. 3A shows a document file “A.HTML”, and FIG. 3B shows a hierarchical tree of the document file “A.HTML”.

  As shown in FIG. 3A, this document file “A.HTML” is described in HTML grammar, and is a logical structure file composed of a plurality of unit information to which header information based on an HTML markup tag is added. It is. This document file “A.HTML” is obtained by dividing a logical structure file having the same display content as that shown in FIG. 15B referred to in the description of the prior art described above into blocks for each unit information, and header information for each unit information. The information management device of the present embodiment manages information files in such a manner.

  The information file having such a logical structure forms a hierarchically structured tree structure. As shown in FIG. 3B, the document file “A.HTML” has a two-layer header and a lower layer. Is configured as a four-level tree structure composed of the paragraphs arranged in the whole. Based on this logical structure, a management table for managing link information between the layers is created, and each file is managed based on the management table.

  FIG. 4 is a schematic diagram of the management table according to the first embodiment of the present invention.

  As shown in FIG. 4, in this management table, the original file names (A.HTML, B.HTML,...) And the header management file names (A * .HTML, B * .HTML,. ) And paragraph file names (P1.html, P2.html,...) Managed by the header management file are described according to the hierarchical structure of each paragraph.

  Each of these paragraph files is created as follows. That is, in the information management apparatus of the present embodiment, the file dividing means 201 shown in FIG. 2 extracts the header information from the information file having the hierarchical structure shown in FIGS. 3A and 3B. At the same time, create a header management file containing the header information and the link by creating a link to the paragraph information with the header information, and create a plurality of paragraph files each containing each paragraph information I do. As described above, the file dividing unit 201 divides one information file to create one header management file and a plurality of paragraph files. The header management file and the plurality of paragraph files are registered and managed in the management table shown in FIG.

  Note that the above management table does not necessarily have to be prepared in the WWW server in advance. For example, in response to a reference request from the user, the management table is stored in the original file (see FIG. 3A) each time. May be created. However, from the point of response, it is preferable to execute the file dividing means 201 and prepare a management table in the WWW server in advance. Alternatively, instead of preparing a management table for all files from the beginning, the management table is created after waiting for a reference request from the user, but the created management table is stored in the storage device 1001 of the WWW server (see FIG. 1). May be stored in advance to prepare for the next and subsequent reference requests.

  Next, the function of the transmission control means according to the first embodiment of the present invention will be described.

  Now, a user sends a file a. When the html reference request is sent, the transmission control means 202 (see FIG. 2) provided in the information management device 100 (see FIG. 1) stores the request in the storage device 1001 with reference to the management table shown in FIG. Header management file A *. Read HTML and transfer to client computer.

  FIG. 5 is a header management file transferred to the client computer by the transmission control means according to the first embodiment of the present invention.

FIG. 5A shows a header management file A *. A portion of the HTML is shown. This header management file does not include a paragraph section of the original file, but is composed of a header section and link information to each independent paragraph file that is divided from the original file for each paragraph. That is, in the second and third lines of FIG. 5A, the large heading "Head1-1" and the middle heading "Head2-1", and in the fourth to sixth lines, the link destinations corresponding to these headers (paragraph file P1 .Html) are described (tags defining a link destination address sandwiched between <A> and </A>). Similarly, the heading “Head1-2”, the middle heading “Head2-2”, and anchor tags corresponding to these headers (indicating the link to the paragraph file P2.html) are shown in the seventh and subsequent lines. It has been described. Such a header management file A *. HTML is transferred from the WWW server to the client computer by the transmission control means 202 (see FIG. 2), and the client computer displays the screen of FIG. 5B described below based on the transferred header management file.

FIG. 5B shows the header management file A *. 7 is a display image of HTML on a screen of a client computer.
As shown in FIG. 5B, a header portion and a link portion to each paragraph are displayed on the screen. The underlined link portion is highlighted on the actual screen by a WWW browser in blue letters and underlines. When the user looks at this screen and clicks, for example, the portion of “link to paragraph” highlighted on the third line with a mouse or the like, a transmission request for the clicked paragraph file is sent from the client computer to the WWW server. Sent. In response to the transmission request, the transmission control means 202 (see FIG. 2) provided in the WWW server reads the designated paragraph file from the storage device 1001 (see FIG. 1) and transmits it to the client computer.

  FIG. 5C shows each paragraph file divided into files based on the management table shown in FIG. For example, the paragraph file 151 contains P1.P1 described in the right column of the first row of the management table shown in FIG. html, and the paragraph file 152 is the P2. html.

The file division from the original file to each paragraph file is performed as follows. That is, the document file A.1 shown in FIG. Taking HTML as an example, this file A. By analyzing the HTML tag, it can be seen that the second to third lines are the header portion and the fourth to fifth lines are the first paragraph. File A. The file is cut out from the HTML, given a paragraph file name “P1.html”, and stored in the storage device 1001 (see FIG. 1). Similarly, it can be seen that the sixth to seventh lines are a header part and the eighth to ninth lines are a second paragraph. The file is cut out from the HTML, stored in the storage device 1001 with a paragraph file name “P2.html”. Hereinafter, similarly, “P3.html
"," P4. html ",... are created and stored in the storage device 1001.

  In the present embodiment, the file division from the original file to each paragraph file is performed simultaneously when the management table is created in response to a reference request from the user. However, similar to the management table, file division may be performed in advance for all information files stored in the server.

  FIG. 6 is a flowchart showing a file transfer procedure according to the first embodiment of the present invention.

As shown in FIG. 6, the process is started by a transmission request on the client computer side, a file name is specified in a URL format (step S11), and when it is sent to the WWW server, the WWW server side searches for the specified file. Perform (Step S21). If the specified file is not stored in the WWW server, the process is terminated. If the specified file is stored, the process proceeds to step S22 to search whether the specified file is registered in the management table (see FIG. 4). (Step S22) Whether the specified file has already been divided, that is, whether the header management file (see FIG. 5A) has already been created and the file division into each paragraph file has been completed. Is determined (step S23). If the specified file has already been divided, the flow advances to step S25 to transfer the header management file to the client computer. If the result of determination in step S23 is that file division has not yet been completed for the specified file, the flow advances to step S24 to create a header management file and divide the file. When the creation and division of the header management file are completed, the header management file is transferred from the WWW server to the client computer (step S25). At this point, the transfer of the paragraph file is not performed.

When the header management file is transferred from the WWW server to the client computer, the WWW browser on the client computer analyzes the header management file and displays the transferred header management file (see FIG. 5B) on the screen. It is displayed (step S12). When the user looks at the screen and clicks a “link to paragraph” part in the screen with a mouse or the like, the paragraph file is specified (step S13), and when it is transmitted to the WWW server in the form of a URL, The WWW server analyzes it, reads the designated paragraph file from the storage device 1001 (see FIG. 1), and transfers it to the client computer (step S26). The client computer receiving the transfer of the paragraph file displays the contents on the screen (step S12). If the user wants to continue reading the file, the processing after the paragraph file designation in step S13 can be continued.

  As described above, according to the present embodiment, even if the original file has a large file size, the file is divided into a header management file and a plurality of paragraph files, and the divided small-sized file is transferred. Can be improved. Further, since this file division is automatically performed by the WWW server, the burden on the information creator is greatly reduced.

  Next, a second embodiment of the information management device of the present invention will be described.

  FIG. 7 is a schematic diagram of an information management program having a file division unit and a transmission control unit provided in the information management device according to the second embodiment of the present invention.

  The information management program 210 also stored in the information management program storage medium 200a shown in FIG. 1 is incorporated in the information management device 100 shown in FIG. As shown in FIG. 7, the information management program 210 includes a file division unit 211 and a transmission control unit 212. The transmission control means 212 has the same function as the transmission control means 202 described in the first embodiment, but the file division means 211 includes a compression means 211a for compressing each paragraph information. The functions are slightly different from those of the file dividing means 201 in the first embodiment.

  As described above, since the compression means 211a is provided in the second embodiment, each separated paragraph file is managed in a compressed state. Therefore, the management efficiency of the paragraph file in the WWW server is reduced in the first embodiment. It is possible to further improve the form, and to improve the efficiency of transferring the paragraph file to the client computer. The paragraph file transferred in a compressed state is decompressed by the WWW browser function of the client computer and then displayed on the screen.

  FIG. 8 is a diagram showing a document file and its hierarchical tree in the second embodiment.

  As shown in FIG. The contents of the HTML are the same as those shown in FIG. 3A. However, when managing the information file in the WWW server, the portion surrounded by the hatched portion in FIG. After being compressed by the compression unit 211a at the time of file division by the file division unit 211 (see FIG. 7), it is stored in the storage device 1001 (see FIG. 1) of the WWW server.

  Next, a third embodiment of the information management device of the present invention will be described.

  FIG. 9 is a schematic diagram of an information management program having a file division unit and a transmission control unit provided in the information management device according to the third embodiment of the present invention.

The information management device 100 shown in FIG. 1 incorporates an information management program 220 also stored in the information management program storage medium 200a shown in FIG. As shown in FIG. 9, the information management program 220 includes a file division unit 221 and a transmission control unit 222. The transmission control means 222 has the same function as the transmission control means 202 described in the first embodiment, but the file division means 221 has the paragraph information arranged immediately before each divided paragraph information. And a link creation unit 221a for creating a link to paragraph information immediately after each paragraph information, and a function slightly different from that of the file division unit 201 in the first embodiment. . That is, the file dividing unit 221 includes a link creating unit 221a that creates a link to the paragraph information arranged immediately before each of the divided paragraph information and a link to the paragraph information arranged immediately after each of the paragraph information. In this case, a paragraph file is stored in which each paragraph information is stored, and in which the links corresponding to each paragraph information are respectively stored, in a number corresponding to the number of paragraph information.

  FIG. 10 shows a paragraph file created by the file dividing means in the third embodiment and a display screen on a client computer.

In this embodiment, as shown in FIG. 10A, the link creating means 221a included in the file dividing means 221 links the link to the paragraph information immediately before and after the paragraph information and the link information immediately after the paragraph information. Links to paragraph information have been created. When the paragraph file shown in FIG. 10A is designated by the user and transferred to the client computer, a screen as shown in FIG. 10B is displayed on the client computer. That is, on the screen 300 of the client computer, the paragraph information of the designated paragraph file is displayed in the paragraph display area 301 at the center of the screen, and the specified paragraph file is displayed immediately below the paragraph display area 301 on the logical structure. The link information 302 to the paragraph file arranged at the position of is highlighted. When the user clicks the link information 302 (highlighted portion) with a mouse or the like, the next paragraph following the paragraph displayed on the screen can be displayed. Similarly, for the immediately preceding paragraph, link information 303 to the paragraph file located immediately before the designated paragraph file in the logical structure with respect to the designated paragraph file is highlighted above the paragraph display area 301. When the user clicks the link information 303 (highlighted portion) with a mouse or the like, the paragraph immediately before the paragraph displayed on the screen can be displayed.

  In order for such link information 302 and 303 to be displayed on the screen together with the designated paragraph file, the link creating means 221a (see FIG. 9) provided in the file dividing means 221 divides the original file into files and outputs When a paragraph file is created, link information to the paragraph files located immediately before and after the logical file is added to each paragraph file, and the paragraph file is stored. It is stored in the device 1001 (see FIG. 1).

  As described above, according to this embodiment, the paragraph immediately before or immediately after the paragraph displayed on the screen can be easily called from the screen, and the operability of the user to refer to the file can be improved.

  Next, a fourth embodiment of the present invention will be described. This embodiment corresponds to the second information management device of the present invention.

  FIG. 11 is a schematic diagram of an information management program having a partial compression unit and a transmission control unit provided in the information management device according to the fourth embodiment of the present invention.

  The information management device 100 shown in FIG. 1 incorporates the information management program 230 which is also stored in the information management program storage medium 200a shown in FIG. As shown in FIG. 11, the information management program 230 includes a partial compression unit 231 and a transmission control unit 232.

  The partial compressing unit 231 has a function of creating an alternative file instead of the logical structure information file by compressing the paragraph information part except the header information in the logical structure information file. When the transmission request of the logical structure information file is received, the function of transmitting the substitute file (see FIG. 12) created by the partial compressing unit 231 is provided in place of the logical structure information file having received the transmission request.

  FIG. 12 is a file configuration diagram of an original file and its substitute file in the fourth embodiment.

FIG. 12A shows the original logical structure information file A.A. HTML is shown, which is a file having the same contents as the document file shown in FIG. FIG. 12B shows the original file A.1 shown in FIG. The alternative file created by compressing the paragraph information portion in HTML is shown. As shown in FIG. 12B, the paragraph part of this substitute file is compressed. The partial compression unit 231 creates such a partially compressed alternative file from the original file, and the transmission control unit 232 transmits it to the client computer. The client computer that has received the substitute file displays the uncompressed header portion first, and during that time can decompress the compressed portion using the WWW browser function. By doing so, file transfer and display of the header portion can be performed at high speed. The substitute file does not consist of a plurality of divided files as in the first to third embodiments, but is created and managed as a single file.

  Next, a fifth embodiment, which is a modification of the fourth embodiment, will be described.

  FIG. 13 is a diagram showing a file structure of a substitute file according to the fifth embodiment.

  In the alternative file according to the fifth embodiment, the paragraph parts are not scattered as in the alternative file of FIG. 12B, but the paragraph parts are arranged in one place as shown in FIG. By doing so, it is possible to quickly display the header information without having to re-edit the header information on the client computer side, and to perform the file transfer at a high speed.

FIG. 2 is a schematic diagram of an information management device common to each embodiment of the present invention. FIG. 2 is a schematic diagram of an information management program having a file division unit and a transmission control unit provided in the information management device according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating a document file managed by the information management apparatus according to the first embodiment of the present invention and a hierarchical tree of the document file. FIG. 4 is a schematic diagram of a management table according to the first embodiment of the present invention. 6 is a header management file transferred to the client computer by the transmission control unit according to the first embodiment of the present invention. 5 is a flowchart illustrating a file transfer procedure according to the first embodiment of the present invention. FIG. 9 is a schematic diagram of an information management program having a file division unit and a transmission control unit provided in the information management device according to the second embodiment of the present invention. FIG. 11 is a diagram illustrating a document file and a hierarchical tree thereof according to the second embodiment. FIG. 14 is a schematic diagram of an information management program having a file division unit and a transmission control unit provided in the information management device according to the third embodiment of the present invention. FIG. 14 shows a paragraph file created by a file dividing unit according to the third embodiment and a display screen on a client computer. FIG. 14 is a schematic diagram of an information management program having a partial compression unit and a transmission control unit provided in an information management device according to a fourth embodiment of the present invention. FIG. 16 is a diagram illustrating a file configuration of an original file and its substitute file in the fourth embodiment. It is a file structure figure of a substitute file in a 5th embodiment. It is a schematic diagram which shows the structure of the information providing system using the conventional WWW. FIG. 11 is a diagram illustrating the content of an information file managed by a conventional WWW server and a display example of the information file. FIG. 11 is a diagram showing a description example of link information indicating the location of an information file in a conventional WWW server. FIG. 11 is a diagram illustrating a state of a hyperlink using a conventional index file and an individual header file.

Explanation of reference numerals

100 information management device 101 network 102a, 102b,. . . Client computer 151, 152 Paragraph file 200, 210, 220, 230 Information management program 200a Information management program storage medium 201, 211, 221 File division means 202, 212, 222 Transmission control means 211a Compression means 221a Link creation means 231 Partial compression means 232 Transmission control means 300 Screen 301 Paragraph display area 302, 303 Link information 1001 Storage device

Claims (5)

In an information management device that manages a logical structure information file in which a plurality of paragraph information with header information are arranged,
By extracting the header information from the logical structure information file and creating a link to the paragraph information to which the header information is added, a header management file including the header information and the link is created, and each of the header information files includes the respective paragraph information. File division means for creating a plurality of paragraph files including each of them, and further recording the logical structure information file name and the created header file in a management table in association with each other;
In response to the transmission request for the logical structure information file, the management table is searched, the header management file corresponding to the logical structure information file name is transmitted, and a transmission request based on the link included in the header management file is waited for. And a transmission control means for transmitting a paragraph file with the link. The transmission control means searches the management table in response to the transmission request of the logical structure information file, and when the management table does not have a file name of the logical structure information file,
The file dividing means,
By extracting header information from the logical structure information file and creating a link to the paragraph information to which the header information is added, a header management file including the header information and the link is created, and each of the header management files is created. 2. The information management system according to claim 1, wherein a plurality of paragraph files including the respective information are created, and the file name of the logical structure information file and the created header file are associated with each other and recorded in a management table. apparatus. The file dividing means includes means for creating a link to paragraph information arranged immediately before each paragraph information and a link to paragraph information arranged immediately after each paragraph information, and each paragraph information is stored. 2. The information management apparatus according to claim 1, further comprising: creating a paragraph file in which these links corresponding to the respective paragraph information are stored. An information management program storage medium that is executed in a computer and stores an information management program that stores the information management program for operating the computer as an information management device that manages a logical structure information file in which a plurality of paragraph information to which header information is added is arranged.
The computer extracts header information from a logical structure information file and creates a link to paragraph information to which the header information is attached, thereby creating a header management file including the header information and the link, File dividing means for creating a plurality of paragraph files each including each paragraph information, and further recording the logical structure information file name and the created header file in a management table in association with each other;
In response to the transmission request for the logical structure information file, the management table is searched, the header management file corresponding to the logical structure information file name is transmitted, and a transmission request based on the link included in the header management file is waited for. An information management program storage medium storing an information management program for operating as an information management apparatus having transmission control means for transmitting a paragraph file with the link. The transmission control means searches the management table in response to the transmission request of the logical structure information file, and when the management table does not have a file name of the logical structure information file,
The file dividing means,
By extracting header information from the logical structure information file and creating a link to the paragraph information to which the header information is added, a header management file including the header information and the link is created, and each of the header management files is created. 5. The method according to claim 4, wherein a plurality of paragraph files including the respective information are created, and the file name of the logical structure information file and the created header file are associated with each other and recorded in a management table. Information management program storage medium.

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