Abstract:
A document data handling apparatus for coupling a plurality of document data, wherein each of the plurality of document data includes a plurality of types of files, the apparaurs including: a document data coupling control part configured to control a document data coupling process in which the plurality of document data managed by the document managing part are coupled together to form second document data; and a document name generating part configured to determine a name of one of the plurality of document data used to create the first document data, to assign the determined name of one of the plurality of document data used to create the first document data to the first document data, and to rename the plurality of document data used to create the first document data so as to include the name assigned to the first document data.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention generally relates to a document management system, an information processing apparatus, a document management method, and a computer-readable recording medium, and, in particular, to a document management system and an information processing apparatus which integrally manage a plurality of document management databases which belong to a plurality of computers, respectively, connected by a network such as a LAN (Local Area Network), and a computer-readable recording medium in which programs for achieving such functions are record. 
   The present invention further relates to a document management system, a documents management method and a computer-readable recording medium, in particular, to a document management system by which operations of decomposing a document consisting of a plurality of sections into the respective sections, which is treated as individual documents, and, then, coupling the thus-produced plurality of documents together into the original document can be performed. 
   2. Description of the Related Art 
   Recently, document data stored in a document management database is managed and manipulated as a result of the document management database belonging to a server computer connected to a network such as a LAN is accessed through a client computer also connected to the network. 
     FIG. 1  shows contents of display on a display monitor (CRT or the like) obtained as a result of an access being made to a document management database belonging to a server computer connected to a network from a client computer also connected to the network. 
   This page shown in  FIG. 1  includes three regions (M 1 , V 1  and V 2 ), the region M 1  displays a menu through which a user inputs instructions to the computer, the region V 1  displays a data management tree (a tree-like structure of cabinets/folders) of the accessed document management database (document management 1), the region V 2  displays documents (document 1 through document 8) stored in the cabinet or folder F 1  selected from the region V 1  by the user. The user uses a mouse or the like against the page to select a document/folder, perform dragging and dropping, and input instructions for various operations to the document management database by selecting (through a mouse click) menu buttons of the menu. 
   Specifically, as a result of a document manipulating client software installed in the client computer is started up, instructions are sent to a server software existing in the server computer from the client software in accordance with instructions by the user, and, accordingly, the server software processes data of the document management database. 
   However, in the above-described system, when a user accesses a plurality of different document management databases existing in a plurality of server computers, respectively, it is necessary to start up a plurality of document manipulating client software corresponding to the respective ones of the plurality of different document management databases. That is, a corresponding document manipulating client software  1  should be started up in order to access a document management database  1  existing in a server computer  1 , and a corresponding document manipulating client software  2  should be started up in order to access a document management database  2  existing in a server computer  2 . 
   Because respective document management databases are different in style of data storage (a tree-like storage style, a time-series storage style, and so forth), in interface (system/measure through which information is sent between the document manipulating client software and server software), in type of data handled (image data, numerical data, and so forth), it is not possible to access a document management database unless a document manipulating client software specifically designed for the document management database is used. 
   Such a phenomenon is the same as a phenomenon that, for example, where there are a database produced using the database software Access™ of Microsoft and a database produced using the database software Approach™ of Lotus, the Access cannot be used for accessing the database produced using the Approach, and, similarly, the Approach cannot be used for accessing the database produced using the Access. 
   Further, transferring data between different document management databases may not be achieved due to difference in software specifications. 
     FIG. 2  shows a state in which documents are managed by one example of document management software in the related art. 
   This document management software manages the documents by a tree hierarchical structure as shown in the figure. Information regarding the structure shown in the figure is stored in a predetermined recording medium orderly. 
   In this structure, first, roots for document management are provided, are branched into folders, subfolders, and, documents exists in each subfolder. One document consists of minimum units for document management, called sections, coupled to each other. Each section is a draft produced using a word processor, an image input using a scanner, and, thus, ones having different forms are allowed. These sections have the attribute of order or sequence in each document. 
   In general cases, each section comprises a unit of file (for example, a WORD™ (Microsoft) file, an EXCEL™ (Microsoft) file, or the like), and, is a minimum unit on an OS (operating system), and exists individually on the OS. These files cannot be coupled to each other so as to have a relationship therebetween on the OS unless they are collected in a unit of folder, or the like. However, there are cases where these are needed to be related to each other so as to be gathered, in view points of actual working by an operator and/or performing file management. For this purpose, a document management software is used for coupling a plurality of sections (files) into a form of ‘document’. 
   Here, it is possible to name the above-mentioned folders, subfolders, documents and sections with names desired by an operator. However, it is standard that, in order to reduce a load borne by an operator, when sections are registered as a document, the name of each section is produced from the original file name of the section, and, a name of the document is produced from the name of the first section of the sections constituting the document. 
   One example of such document management software is ‘Ridoc Desk Ver. 2.0’, a product of the applicant. 
   However, in accordance with such a standard management system, a section name is produced from an original file name, and will not be changed. Thereby, when performing document coupling (gathering sections) and document decomposition (separation into particular sections), an operator has difficulty in recognizing which sections (documents) were coupled as the same document, and, thus, have a relationship previously. 
   In order to relating sections together, it can be considered to newly produce some section attribute so as to solve this problem. However, this method is not easy for an operator to recognize the relation, and, also, produces troublesome in management. 
   SUMMARY OF THE INVENTION 
   The present invention has been devised in consideration of the above-mentioned problems, and, an object of the present invention is to provide a system for connecting an application (user interface) to a plurality of different types of document management databases. 
   Another object of the present invention is to provide a system for making possible document manipulation without awareness of a type of a connected document management database when a document is manipulated using the application. 
   In order to achieve these objects, an integrating document management system according to the present invention comprises: 
   a plurality of databases; 
   a plurality of data processing parts provided for respective ones of the plurality of databases and processing data of the databases; 
   a user interface part providing an interface for a user; and 
   a connecting part for connection between the user interface part and plurality of data processing parts. 
   Thereby, it is possible to connect the user interface part (application, integrating document management software) to the plurality of (document management) databases through the connecting part, and to integrally manage and manipulate documents stored in the plurality of databases through the user interface part. Further, it is possible to move documents between different document management databases, and so forth. 
   The user interface part may comprise a display part displaying data concerning the plurality of databases; and an instructing part for the user to give instructions for processing data of the plurality of databases. Thereby, it is possible to manages and manipulate documents stored in the plurality of databases through the user interface part easily. Further, it is possible to move documents between different document management databases, and so forth easily. 
   The connecting parts corresponding to respective ones of the plurality of databases may have a standardized interface against the user interface part. Thereby, when documents stored in the plurality of document management databases are manipulated, it is possible to manipulate the documents without awareness of the types of the connected document management databases. Further, it is possible to design the user interface part without awareness of the types of the connected document management databases. 
   The user interface part may perform connection and disconnection of the connecting parts corresponding to respective ones of the plurality of databases. Thereby, it is possible to dynamically connect the user interface part to the document management databases and disconnects the user interface part from the document management databases through the connecting parts. Accordingly, it is possible that only document management databases used are connected to the user interface part, and only data concerning the connected document management databases is displayed. 
   The user interface part may obtain information indicating whether or not instructions for manipulating data of the databases are supported or allowed by the databases from the corresponding connecting parts, respectively. Thereby, it is possible to know whether or not instructions for manipulating data of the databases are supported or allowed by the databases, respectively, through the user interface part. Thus, it is possible to obtain information concerning data processing functions (capability) of respective ones of connected document management databases through the user interface part. 
   The user interface part may use graphic items representing data of the databases. Further, the user interface part may obtain graphic data used for displaying the graphic items representing data of the databases from the corresponding connecting parts, respectively. Thereby, when the plurality of document management databases are handled, it is possible to use graphic items (icons representing folders, thumbnails representing documents, and so forth) unique to the document management databases, and to achieve displays easily understandable by a user. 
   An information processing apparatus according to the present invention comprises: 
   a user interface part providing an interface for a user; and 
   a connecting part enabling connection between the user interface part and a plurality of data processing parts provided for respective ones of a plurality of databases and processing data of the databases. 
   Thereby, it is possible to connect the user interface part (application, integrating document management software) to the plurality of (document management) databases through the connecting part, and to integrally manage and manipulate documents stored in the plurality of databases through the user interface part. Further, it is possible to move documents between different document management databases, and so forth. 
   A computer-readable recording medium according to the present invention has programs recorded therein, the programs causing a computer to function as: 
   user interface means for providing an interface for a user; and 
   connecting means for enabling connection between the user interface means and a plurality of data processing means provided for respective ones of a plurality of databases and processing data of the databases. 
   Thereby, as a result of those programs being executed by the computer, it is possible to connect the user interface part (application, integrating document management software) to the plurality of (document management) databases through the connecting part, and to integrally manage and manipulate documents stored in the plurality of databases through the user interface part. Further, it is possible to move documents between different document management databases, and so forth. 
   The user interface means may comprise display means displaying data concerning the plurality of databases; and instructing means for the user to give instructions for processing data of the plurality of databases. Thereby, it is possible to manage and manipulate documents stored in the plurality of databases through the user interface means easily. Further, it is possible to move documents between different document management databases, and so forth easily. 
   The connecting means corresponding to respective ones of the plurality of databases may have a standardized interface against the user interface means. Thereby, when documents stored in the plurality of document management databases are manipulated, it is possible to manipulate the document without awareness of the types of the connected document management databases. Further, it is possible to design the user interface means without awareness of the types of the connected document management databases. 
   The user interface means may perform connection and disconnection of the connecting means corresponding to respective ones of the plurality of databases. Thereby, it is possible to dynamically connect the user interface part to the document management databases and disconnects the user interface part from the document management databases through the connecting parts. Accordingly, it is possible that only document management databases used are connected to the user interface part, and only data concerning the connected document management databases is displayed. 
   The user interface means may obtain information indicating whether or not instructions for manipulating data of the databases are supported or allowed by the databases from the corresponding connecting means, respectively. Thus, it is possible to obtain information concerning data processing functions (capability) of respective ones of connected document management databases, respectively, through the user interface part. 
   The user interface means may use graphic items representing data of the databases. Further, the user interface means may obtain graphic data used for displaying the graphic items representing data of the databases from the corresponding connecting means. Thereby, when the plurality of document management databases are handled, it is possible to use graphic items (icons representing folders, thumbnails representing documents, and so forth) unique to the document management databases, and to achieve displays easily understandable for a user. 
   Thus, by using the computer-readable recording medium according to the present invention, it is possible to cause a general-purpose computer (personal computer) to read and execute the programs therefrom and thereby, cause the computer to execute the various functions of the integrating document management system described above. As a result, the above-mentioned advantages can be obtained. 
   Another object of the present invention is to provide a document management system which makes possible easy recognition of relationship between a plurality of sections (documents) in a case where a document consisting of the plurality of sections is decomposed into respective individual sections (documents). 
   In order to achieve the object, an document management system according to the present invention comprises: 
   a managing part managing a plurality of documents each comprising one or a plurality of sections; and 
   a part creating a name of each section of plurality of sections of a document, said name comprising a name of the document. 
   A document management method according to the present invention comprises the steps of: 
   managing a plurality of documents each comprising one or a plurality of sections; and 
   creating a name of each section of plurality of sections of a document, said name comprising a name of the document. 
   A computer-readable recording medium according to the present invention has programs recorded therein, the programs causing a computer to function as: 
   means for managing a plurality of documents each comprising one or a plurality of sections; and 
   means for creating a name of each section of plurality of sections of a document, said name comprising a name of the document. 
   In this configuration, names of sections included in a document are changed into ones each including a name of the document. Thereby, when the document (source document) is decomposed into ones each including a respective one of the sections, it is easy to understand the source document of the resulting documents from the names of their sections, and, thereby, convenientity of document management can be improved. 
   This system may further comprise: 
   a specifying part for an operator to specify an index type,
         wherein the name creating part creates a name of each section, said name comprising the name of the document and an index having an attribute of order and of a type specified through the specifying part.       

   The method may further comprises the step of: 
   specifying an index type, 
   wherein the name changing step changing a name of each section, said name comprising the name of the document and an index having an attribute of order and of a type specified by the specifying step. 
   The recording medium as claimed may further have a program recorded therein, the program causing the computer to further function as: 
   means for specifying an index type, 
   wherein the name creating means creates a name of each section, said name comprising the name of the document and an index having an attribute of order and of a type specified by the specifying means. 
   In this configuration, operations performed by an operator trigger creation of section names each comprising the name of the source document and an index having an attribute of order and of a type specified by the operator is used. 
   In this configuration, in comparison to a case where an index of system default is used, it is possible to improve work efficiency because an index of a type intended by an operator. 
   The system may further comprise: 
   a selecting part for an operator to select an index type from a list of index types, 
   wherein the name creating part creates a name of each section, said name comprising the name of the document and an index having an attribute of order and of a type selected through the selecting part. 
   The method may further comprises the step of: 
   selecting an index type from a list of index types, 
   wherein the name creating step creates a name of each section, said name comprising the name of the document and an index having an attribute of order and of a type selected by the selecting step. 
   The recording medium may further have a program recorded therein, the program causing the computer to further function as: 
   means for selecting an index type from a list of index types, 
   wherein the name creating means creates a name of each section, said name comprising the name of the document and an index having an attribute of order and of a type selected by the selecting means. 
   In this configuration, an operator previously registers types of index, then, selects one therefrom, and section names are created in accordance with the selected type of index. Thereby, in comparison to a case where an operator should input a type of index each time the naming function is executed, it is possible to improve work efficiency. 
   The system may further comprises: 
   a setting part setting instructions for changing names of sections when documents are coupled 
   wherein the name changing part changes a name of each section of plurality of sections of a document into a name comprising a name of the document obtained from coupling of documents when the instructions for changing names of sections when documents are coupled are set by the setting part. 
   The method may further comprises the step of: 
   setting instructions for changing names of sections when documents are coupled, 
   wherein the name changing step changes a name of each section of plurality of sections of a document into a name comprising a name of the document obtained from coupling of documents when the instructions for changing names of sections when documents are coupled are set through the setting step. 
   The recording medium may further have a program recorded therein, the program causing the computer to further function as: 
   means for setting instructions for changing names of sections when documents are coupled, 
   wherein the name changing means changes a name of each section of plurality of sections of a document into a name comprising a name of the document obtained from coupling of documents when the instructions for changing names of sections when documents are coupled are set through the setting means. 
   In this case, in comparison to a case where a special operation for creating/changing section names should be performed by an operator after documents are coupled, the section names are automatically created/changed into ones each comprising the document name and an index. Thereby, it is not necessary for the operator to perform the special operation each time the naming function is executed, and to improve work efficiency. 
   A document management system according to another aspect of the present invention comprises: 
   a managing part managing a plurality of documents each comprising one or a plurality of sections; and 
   a naming part naming each document obtained from decomposing a source document using a name of a section of the document obtained from decomposing the source document, 
   where the name of the section comprises a name of the source document and an index having an attribute of order. 
   A document management method according to another aspect of the present invention comprises the steps of: 
   managing a plurality of documents each comprising one or a plurality of sections; and 
   naming each document obtained from decomposing a source document using a name of a section of the document obtained from decomposing the source document, 
   where the name of the section comprises a name of the source document and an index having an attribute of order. 
   A compute-readable recording medium according to another aspect of the present invention have programs recorded therein, the programs causing a computer to function as: 
   means for managing a plurality of documents each comprising one or a plurality of sections; and 
   means for naming each document obtained from decomposing a source document using a name of a section of the document obtained from decomposing the source document, 
   where the name of the section comprises a name of the source document and an index having an attribute of order. 
   In this configuration, documents resulting from decomposing a source document are named with names of sections of the respective resulting documents. There, it is assumed that the names of the sections of the source document are those each comprising the name of this document and an index, as mentioned above. Thereby, after the source document is decomposed into division documents each comprising a section, it is possible to know the source document of each division document from the name of the division document. Thereby, it is possible to improve work efficiency. 
   A document management system according to another aspect of the present invention comprises: 
   a managing part managing a plurality of documents each comprising one or a plurality of sections; and 
   a searching part searching for documents using a type of index, 
   where each document has a name comprising an index having an attribute of order. 
   A document management method according to another aspect of the present invention comprises the steps of: 
   managing a plurality of documents each comprising one or a plurality of sections; and 
   searching for documents using a type of index, 
   where each document has a name comprising an index having an attribute of order. 
   A compute-readable recording medium according to another aspect of the present invention have programs recorded therein, the programs causing a computer to function as: 
   means for managing a plurality of documents each comprising one or a plurality of sections; and 
   means for searching for documents using a type of index, 
   where each document has a name comprising an index having an attribute of order. 
   In this configuration, documents are searched for using the type of index indicating an attribute of order. Thereby, it is possible to search for documents having different types of index separately. Thereby, it is possible to improve convenientity of document management. 
   The system may further comprise: 
   a specifying part for an operator to specify a name indicating an attribute of document and a type of index, 
   wherein the searching part perform search in accordance with an item specified through the specifying part. 
   The method may further comprises the step of: 
   specifying a name indicating an attribute of document and a type of index, 
   wherein the searching step performs search in accordance with an item specified through the specifying step. 
   The recording medium may further have a program recorded therein, the program causing a computer to function as: 
   means for specifying a name indicating an attribute of document and a type of index, 
   wherein the searching means performs search in accordance with an item specified through the specifying means. 
   In this configuration, an operator specify a name indicating an attribute of document and a type of index. Thereby, it is possible for the operator to search for documents having an arbitrary name indicating an attribute of document and an arbitrary type of index even when the documents obtained from decomposition are dispersed into complexity with other non-relevant documents. 
   The system may further comprise: 
   a dividing part dividing a document name into an index and the remainder, 
   wherein the searching part performs search in accordance with an item obtained from the dividing part. 
   The method may further comprises the step of: 
   dividing a document name into an index and the remainder, 
   wherein the searching step performs search in accordance with an item obtained from the dividing part. 
   The recording medium may further have a program recorded therein, the program causing a computer to further function as: 
   means for dividing a document name into an index and the remainder, 
   wherein the searching means performs search in accordance with an item obtained from the dividing means. 
   In this configuration, as a result of an input document name is automatically divided into an index and the remainder, and the type of the index and the remainder (as a name indicating the contents of the document) are used for the document search, an operator should not input such data for document search. Thus, it is possible to improve work efficiency. 
   The system may further comprise: 
   a sorting part sorting names of the documents obtained from the searching part in order of index; and 
   a coupling part coupling the documents in order of the result obtained from the sorting part. 
   The method may further comprises the steps of: 
   sorting names of the documents obtained from the searching part in order of index; and 
   coupling the documents in order of the result obtained from the sorting step. 
   The recording medium may further have programs recorded therein, the programs causing the computer to further function as: 
   means for sorting names of the documents obtained from the searching means in order of index; and 
   means for coupling the documents in order of the result obtained from the sorting means. 
   Thereby, the documents obtained from the search are sorted in order of index, and are coupled in the order of the sort results. As a result, the resulting document has the sections arranged in the correct order therein. Thereby, it is possible to improve work efficiency. 
   The system may further comprise: 
   a naming part naming the document obtained from the coupling part using the remainder of deletion of the index from a name of a section included in the document. 
   The method may further comprise the step of: 
   naming the document obtained from the coupling step using the remainder of deletion of the index from a name of a section included in the document. 
   The recording medium may further have a program recorded therein, the program causing the computer to further function as: 
   means for naming the document obtained from the coupling means using the remainder of deletion of the index from a name of a section included in the document. 
   Thereby, when a resulting document includes sections ‘PATENT-1’, ‘PATENT-2’ and ‘PATENT-3’, and, thereby, has the document name ‘PATENT-1’ as a result of the name of the first section being used, this name is automatically changed into ‘PATENT’ (the remainder of deletion of the index ‘-1’). Thus, the proper naming is made, and convenientity of document management is improved. 
   An integrating document management system according to another aspect of the present invention comprises: 
   a managing part managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   a part changing a name of each section of plurality of sections of a document into a name comprising a name of the document. 
   An integrating document management system according to another aspect of the present invention comprises: 
   a managing part managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   a naming part naming each document obtained from decomposing a source document using a name of a section of the document obtained from decomposing the source document, 
   where the name of the section comprises a name of the source document and an index having an attribute of order. 
   An integrating document management system according to another aspect of the present invention comprises: 
   a managing part managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   a searching part searching for documents using a type of index, 
   where each document has a name comprising an index having an attribute of order. 
   An integrating document management method according to another aspect of the present invention comprises the steps of: 
   managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   changing a name of each section of plurality of sections of a document into a name comprising a name of the document. 
   An integrating document management method according to another aspect of the present invention comprises the steps of: 
   managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   naming each document obtained from decomposing a source document using a name of a section of the document obtained from decomposing the source document, 
   where the name of the section comprises a name of the source document and an index having an attribute of order. 
   An integrating document management method according to another aspect of the present invention comprises the steps of: 
   managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   searching for documents using a type of index, 
   where each document has a name comprising an index having an attribute of order. 
   A computer-readable recording medium according to another aspect of the present invention has programs recorded therein, the programs causing a computer to function as: 
   means for managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   means for changing a name of each section of plurality of sections of a document into a name comprising a name of the document. 
   A compute-readable recording medium according to another aspect of the present invention has programs recorded therein, the programs causing a computer to function as: 
   means for managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   means for naming each document obtained from decomposing a source document using a name of a section of the document obtained from decomposing the source document, 
   where the name of the section comprises a name of the source document and an index having an attribute of order. 
   A compute-readable recording medium according to another aspect of the present invention has programs recorded therein, the programs causing a computer to function as: 
   means for managing a plurality of documents managed by a plurality of databases, respectively, each document comprising one or a plurality of sections; and 
   means for searching for documents using a type of index, 
   where each document has a name comprising an index having an attribute of order. 
   Thereby, the above-described respective functions can be achieved even in a case where documents managed by a plurality of databases are integrally managed, and, as a result, even in a distributed database environment, efficiency in document management can be improved, and it is possible to efficiently manage documents through a plurality of distributed databases. 
   Other objects and further features of the present invention will become more apparent from the following detailed description when read in conjunction with the accompanying drawings. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  shows an example of display contents of a screen of a client computer in the related art; 
       FIG. 2  shows an example of a state of document management in the related art; 
       FIG. 3  shows an example of a system configuration of a first embodiment of the present invention; 
       FIG. 4  shows an example of display contents of a screen of a client computer in the first embodiment of the present invention; 
       FIG. 5  is a block diagram showing a configuration of each document management connecting program in the first embodiment of the present invention; 
       FIG. 6  is a block diagram showing a configuration of an integrating document management software in the first embodiment of the present invention; 
       FIGS. 7A and 7B  show data managed by a display data managing part of the integrating document management software; 
       FIG. 8  shows data managed by a connected document management database managing part of the integrating document management software; 
       FIG. 9  shows a flow chart illustrating operations of displaying data in a region V 1  of the screen of the client computer; 
       FIG. 10  shows a flow chart illustrating operations of displaying data in a region V 2  of the screen of the client computer; 
       FIG. 11  shows a flow chart illustrating operations of updating data in a region V 2  of the screen of the client computer; 
       FIG. 12  shows a list of instructions implemented in each document management control program; 
       FIG. 13  shows a connection order dialog box; 
       FIG. 14  shows a flow chart illustrating operations performed when an operator inputs instructions through the connection order dialog box; 
       FIG. 15  shows display contents on the screen of the client computer in a case where the document management connoting program for the document management database  2  is disconnected; 
       FIG. 16  shows a flow chart illustrating operations at a time of disconnection of document management programs; 
       FIG. 17  shows a flow chart illustrating operations at a time of connection of document management programs; 
       FIGS. 18A ,  18 B and  18 C show data indicating whether or not instructions are executable, which is previously set in each document management connecting program; 
       FIG. 19  shows a flow chart illustrating operations performed when documents are deleted; 
       FIGS. 20 and 21  show a flow chart illustrating operations performed when documents are moved between different document management databases; 
       FIG. 22  shows icons and thumbnails which each document management connecting program or document management database has; 
       FIG. 23  shows an example of display contents of the screen of the client computer using icons unique to respective document management databases and thumbnails unique to respective documents; 
       FIG. 24  shows an example of a configuration of each of the computers shown in  FIG. 3 ; 
       FIG. 25  shows a hardware configuration of a document management system in each of second through tenth embodiment of the present invention; 
       FIG. 26  shows a functional block diagram of the document management system in each of second through tenth embodiment of the present invention; 
       FIG. 27  shows a page normally displayed on a display monitor of the document management system in each of second through tenth embodiment of the present invention; 
       FIG. 28  illustrates a document-information management file and a section-information management file; 
       FIG. 29  shows a flow chart of operations of a second embodiment of the present invention; 
       FIGS. 30 and 31  show a dialog box displayed on the display monitor in the operations shown in  FIG. 29 ; 
       FIG. 32  shows a flow chart of operations of a third embodiment of the present invention; 
       FIGS. 33 and 34  show a dialog box displayed on the display monitor in the operations shown in  FIG. 32 ; 
       FIG. 35  shows a flow chart of operations of a fourth embodiment of the present invention; 
       FIGS. 36 and 37  show a dialog box displayed on the display monitor in the operations shown in  FIG. 35 ; 
       FIG. 38  shows a flow chart of operations of a fifth embodiment of the present invention; 
       FIG. 39  shows a flow chart of operations of a sixth embodiment of the present invention; 
       FIG. 40  shows a flow chart of operations of a seventh embodiment of the present invention; 
       FIGS. 41 and 42  show a dialog box displayed on the display monitor in the operations shown in  FIG. 40 ; 
       FIG. 43  shows a flow chart of operations of a search process shown in  FIG. 40 ; 
       FIG. 44  shows a flow chart of operations of an eighth embodiment of the present invention; 
       FIGS. 45 and 46  show a dialog box displayed on the display monitor in the operations shown in  FIG. 44 ; 
       FIG. 47  shows a flow chart of operations of a ninth embodiment of the present invention; 
       FIG. 48  show a dialog box displayed on the display monitor in the operations shown in  FIG. 47 ; 
       FIG. 49  shows a flow chart of operations of a tenth embodiment of the present invention; and 
       FIG. 50  show a dialog box displayed on the display monitor in the operations shown in  FIG. 49 . 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   An integrating document management system in a first embodiment of the present invention will now be described. 
     FIG. 3  shows an example of a system configuration of the integrating document management system in the first embodiment of the present invention. 
   In this system, a plurality of computers C 1  (server computer), C 2  (server computer) and C 3  (client computer) are connected to a network N 1  (for example, a LAN). A document management database  1  exists in the computer C 1 , a document management database  2  exists in the computer C 2  and a document management database  3  exists in the computer C 3 . Each of the document management databases  1 ,  2  and  3  has server software which is used for processing data of its own database. The computers C 1 , C 2  and C 3  are connected with each other through the network N 1 . 
   The computer C 3  has an integrating document management software (user interface) T 1  and document management connecting programs P 1 , P 2  and P 3  installed therein. It is possible to access the document management database  1  of the computer C 1  through the document management connecting program P 1  using the integrating document management software T 1 . Similarly, it is possible to access the document management database  2  of the computer C 2  through the document management connecting program P 2  using the integrating document management software T 1 . Similarly, it is possible to access the document management database  3  of the computer C 3  through the document management connecting program P 3  using the integrating document management software T 1 . 
   The integrating document management software T 1  and respective document management connecting programs P 1 , P 2  and P 3  are stored in a storage device such as a hard disk drive (see  FIG. 24 ) and so forth of the client computer C 3 . As a result of respective instructions thereof being executed by the CPU (see  FIG. 24 ) of the client computer C 3 , the integrating document management software T 1  and respective document management connecting programs P 1 , P 2  and P 3  perform processing using a memory (see  FIG. 24 ) such as a ROM, a RAM and so forth of the client computer C 3 , under control and management by the OS (operating system) installed in the client computer C 3 . The server software and database of each of the document management databases  1 ,  2  and  3  are stored in a storage device such as a hard disk drive and so forth of a respective one of the computers (server computers C 1 , C 2  and client computer C 3 ). As a result of respective instructions thereof being executed by the CPU of a respective one of the computers C 1 , C 2  and C 3 , each server software performs processing using the memory such as a ROM, a RAM and so forth of the respective one of the computers C 1 , C 2  and C 3 , under control and management by the OS installed in the respective one of the computers C 1 , C 2  and C 3 . 
   It is necessary to be limited to the above-mentioned example of configuration. The present invention may also be applied to another example of system configuration in which further many client computers, server computers are connected to the network, the document management database, integrating document management software, document management connecting programs exist in each client computer, and the document management database exists in each server computer, another example of system configuration in which only the integrating document management software and document management connecting programs exist but no document management databases exist in each client computer, and so forth. 
     FIG. 4  shows an example of contents of display on the display monitor (CRT or the like) of the client computer C 3 . 
   This page shown in  FIG. 4  includes three regions (M 1 , V 1  and V 2 ), the regions M 1  displays a menu through which a user inputs instructions to the computer, the region V 1  displays a data management tree (a tree-like structure of cabinets/folders) D 1  of the accessed document management database  1 , a data management tree D 2  of the accessed document management database  2  and a data management tree D 3  of the accessed document management database  3 . The region V 2  displays documents (document 1 through document 8) stored in the cabinet or folder F 1  selected from the region V 1  by the user. The user uses a mouse or the like against the page to select a document/folder, perform dragging and dropping, and input instructions for various operations to the document management databases by selecting (through a mouse click) menu buttons of the menu. By using the integrating document management software T 1 , it is possible to manipulate data of the document management databases  1 ,  2  and  3  through the document management connecting programs P 1 , P 2  and P 3  in accordance with instructions given by the user. 
   Each of the document management programs P 1 , P 2  and P 3  has a common interface against the integrating document management software T 1 . That is, common instructions such as a “CopyDocuments” instruction used for copying a document, a “MoveDocuments” instruction used for moving a document and so forth are implemented in each of the document management programs P 1 , P 2  and P 3 . Further, documents and folders (cabinets) handled by the integrating document management software T 1  have ID numbers attached thereto by the document management connecting programs P 1 , P 2  and P 3 , and, when instructions are given from the integrating document management software T 1  to the document management connecting programs P 1 , P 2  and P 3 , the ID numbers are specified to identify documents/folders (see  FIG. 12 ). 
   Each document management connecting program (for example, P2) converts (translates) instructions such as “CopyDocuments” given by the integrating document management software T 1  into a set of instructions so as to adapt the instructions from the integrating document management software T 1  to the interface specifications of the document management database (in this example, 2) to which the document management connecting program is connected, and, then, manipulates the document management database (in this example, 2) with the thus-obtained set of instructions. 
     FIG. 5  shows a general functional block diagram of each of the document management connecting programs P 1 , P 2  and P 3 . 
   Each document management connecting program includes an instruction interpreting part  11 , an instruction translating part  12  and an instruction giving part  13 . 
   The instruction interpreting part  11  has a function of interpreting instructions given by the integrating document management software T 1 , and giving the interpreted results to the instruction translating part  12 . The instruction translating part  12  has a function of using the interpreted results given by the instruction interpreting part, and translating the given instructions into a set of instructions for the document management database ( 1 ,  2  or  3 ) to which the document management connecting program is connected so as to adapt them for the specifications of the interface of that document management database. The instruction giving part  13  has a function of using the set of instructions so as to give instructions to the server software of the document management database. Thus, what each document management connecting program is directly connected to is the server software of the respective one of the document management databases. 
   The instruction giving part  13  further has a function of a data interpreting part for interpreting received data, and gives the interpreted results to the instruction translating part  12 , when each document management connecting program receives the data from the corresponding document management database to which the document management connecting program is connected. The instruction translating part  12  has a function of a data translating part, and, thereby, in this case, transforms (translates) the received data into data for the integrating document management software T 1  so as to adapt the data for the specifications of the interface of the integrating document management software T 1 , and providing the transformed results to the instruction interpreting part  11 . The instruction interpreting part  11  has, in this case, a function of a data outputting part, and, thereby, in this case, provides the data of the transformed results to the integrating document management software T 1 . For example, when the data received from the document management database is data having a data storage style in accordance with that database, the data storage style being such that folders are arranged in time series, the document management connecting program transforms, thus rearranges the data of this data storage style into data of a tree-structure storage style based on year/month/day of the data, and provides the resulting data to the integrating document management software T 1 . 
     FIG. 6  shows a general functional block diagram of the integrating document management software T 1 . 
   The integrating document management software T 1  includes a display and operation part  21 , a display data managing part  22 , a connected document management database managing part  23 , and an interface part  24 . 
   The display and operation part  21  displays data managed by the display data managing part  22  on the display monitor of the client computer C 3 , and receives instructions from a user through input devices such as a mouse, a keyboard and so forth. The display data managing part  22  manages data to be displayed on the display monitor of the client computer C 3 . The connected document management database managing part  23  manages the document management connecting programs which are connected to the integrating document management software T 1 , that is, are loaded in the memory and used by the integrating document management software T 1 . The interface part  24  manages communication between the integrating document management software T 1  and the connected document management connecting programs. 
     FIGS. 7A and 7B  show data managed by the display data managing part  22 . 
     FIG. 7A  shows data to be displayed in the region V 1  of the page displayed on the display monitor of the client computer C 3 . Thus, data concerning folders (IDs of the folders, names of the folders, and icons of the folders) of the document management databases  1 ,  2  and  3  connected to the integrating document management software T 1  through the document management connecting programs P 1 , P 2  and P 3  is managed for each folder, and is managed for each document management database.  FIG. 7B  shows data to be displayed on the region V 2  of the page displayed on the display monitor of the client computer C 3 . Thus, data concerning documents (IDs of the documents, names of the documents, the number of pages of each document and thumbnails of the documents) stored in the folders selected by a user from the folders displayed in the region V 1  of the page is managed for each document. 
     FIG. 8  shows data managed by the connected document management database managing part  23 . 
   There, data concerning the document management data bases  1 ,  2  and  3  (names of the databases and IDs of the databases) connected to the integrating document management software T 1  through the document management connecting programs P 1 , P 2  and P 3  is managed for each of the document management databases  1 ,  2  and  3 . 
     FIG. 9  shows a flow chart of operations for displaying data in the region V 1  of the page displayed on the display monitor of the client computer C 3 . 
   First, when the client computer C 3  is started up in a step S 1  (the term ‘step’ being omitted hereinafter), the display data managing part  22  of the integrating document management software T 1  requests the respective document management connecting programs P 1 , P 2  and P 3  data indicating the lists of folders in S 2 . Then, in S 3 , the document management connecting programs P 1 , P 2  and P 3  transform the thus-given folder list data requesting instructions into corresponding sets of instructions so as to adapt the given instructions for the specifications of the respective interfaces of the document management databases  1 ,  2  and  3 , and give the sets of instructions to the respective document management databases  1 ,  2  and  3 . For example, the document management connecting program P 2  transforms the thus-given folder list data requesting instructions into corresponding set of instructions so as to adapt the given instructions for the specifications of the respective interface of the connected corresponding document management database  2 , and give the set of instructions to the document management databases  2 . 
   Then, in S 4 , in accordance with the given set of instructions, the server software of each of the document management databases  1 ,  2  and  3  provides data of the list of folders stored in the respective one of the document management databases  1 ,  2  and  3  to the respective one of the corresponding connected document management connecting programs P 1 , P 2  and P 3 . Then, in S 5 , the respective document management connecting programs P 1 , P 2  and P 3  transform the data of the lists of folders into corresponding data so as to adapt it for the specifications of the interface of the integrating document management software T 1 , and provides the thus-obtained data to the integrating document management software T 1 . In S 6 , the display data managing part  22  of the integrating document management software T 1  manages the data of lists of folders provided from the respective document management connecting programs P 1 , P 2  and P 3  (see  FIG. 7A ). In S 7 , the display and operation part  21  displays the lists of folders (management trees) D 1 , D 2  and D 3  of the respective document management databases  1 ,  2  and  3  managed by the display data managing part  22  in the region V 1  of the page displayed on the display monitor of the client computer C 3  (see  FIG. 4 ). 
     FIG. 10  shows a flow chart of operations for displaying data in the region V 2  of the page displayed on the display monitor of the client computer C 3 . 
   First, in S 11 , a user selects an arbitrary folder from the lists of folders of the respective document management databases  1 ,  2  and  3  displayed in the region V 1  of the page displayed on the display monitor of the client computer C 3  through a mouse click or the like (for example, selects a folder in the document management database  2 ). Then, in S 12 , the display data managing part  22  of the integrating document management software T 1  identifies the document management database to which the folder selected by the user belongs from the data of lists of folders managed by this part  22  (in this example, identifies the document management database  2 ). Then, in S 13 , the connected document management database managing part  23  identifies the document management connecting program which connects the document management database identified in S 12  to the integrating document management software T 1  (in this example, identifies the document management connecting program P 2 ) from the data, managed by this part  23 , of the respective document management databases  1 ,  2  and  3  and document management connecting programs P 1 , P 2  and P 3  which connect them to the integrating document management software T 1 . Then, in S 14 , the display data managing part  22  requests the document management connecting program (in this example, the document management program P 2 ) the data indicating the list of documents stored in the folder selected in S 11  of the document management database (in this example, the document management database  2 ) identified in S 13 . 
   Then, in S 15 , the document management connecting program (in this example, the document management connecting program P 2 ) that is requested the data of list of documents of this folder transforms the instructions of this request into the corresponding set of instructions so as to adapt the given instructions of the request for the specifications of the interface of the corresponding document management database (in this example, the document management database  2 ) connected by this document management connecting program, and gives the set of instructions to the document management database. In S 16 , in accordance with the thus-given set of instructions, the server software of the document management database (in this example, the document management database  2 ) which has received the set of instructions obtains from its own database and provides the data indicating the list of documents stored in the requested folder to the document management connecting program (in this example, the document management connecting program P 2 ). 
   Then, in S 17 , the document management connecting program (in this example, the document management connecting program P 2 ) which has received the data indicating the list of documents of the folder transforms the data into corresponding data so as to adapt the received data for the specifications of the interface of the integrating document management software T 1 , and provides the thus-obtained data to the integrating document management software T 1 . In S 18 , the display data managing part  22  manages the thus-provided data (see  FIG. 7B ). Then, in S 19 , the display and operation part  21  displays the data of the list of documents thus managed by the display data managing part  22  in the region V 2  of the page displayed on the display monitor of the client computer C 3 . 
     FIG. 11  shows a flow chart of operations for updating the data of the list of documents displayed in the region V 2  of the client computer C 3  (for example, the displayed contents of the region V 2  of the page displayed on the display monitor is changed from the list of documents of the folder of the document management database  2  into the list of documents of the folder of the document management database  3 ). 
   First, in S 21 , a user selects an arbitrary folder from the lists of folders of the respective document management databases  1 ,  2  and  3  displayed in the region V 1  of the page displayed on the display monitor of the client computer C 3  through a mouse click or the like (for example, selects a folder in the document management database  3 ). Then, in S 22 , the display data managing part  22  of the integrating document management software T 1  identifies the document management database to which the folder selected by the user belongs from the data of lists of folders managed by this part  22  (in this example, identifies the document management database  3 ). Then, in S 23 , the connected document management database managing part  23  identifies the document management connecting program which connects the document management database identified in S 22  to the integrating document management software T 1  (in this example, identifies the document management connecting program P 3 ) from the data, managed by this part  23 , of the respective document management databases  1 ,  2  and  3  and document management connecting programs P 1 , P 2  and P 3  which connect them to the integrating document management software T 1 . Then, in S 24 , the display data managing part  22  requests the document management connecting program (in this example, the document management program P 3 ) the data indicating the list of documents stored in the folder selected in S 21  of the document management database (in this example, the document management database  3 ) identified in S 23 . 
   Then, in S 25 , the document management connecting program (in this example, the document management connecting program P 3 ) that is requested the data of list of documents of this folder transforms the instructions of this request into the corresponding set of instructions so as to adapt the given instructions of the request for the specifications of the interface of the corresponding document management database (in this example, the document management database  3 ) connected by this document management connoting program, and gives the set of instructions to the document management database. In S 26 , in accordance with the thus-given set of instructions, the server software of the document management database (in this example, the document management database  3 ) which has received the set of instructions obtains from its own database and provides the data indicating the list of documents stored in the requested folder to the document management connecting program (in this example, the document management connecting program P 3 ). 
   Then, in S 27 , the document management connecting program (in this example, the document management connecting program P 3 ) which has received the data indicating the list of documents of the folder transforms the data into corresponding data so as to adapt the received data for the specifications of the interface of the integrating document management software T 1 , and provides the thus-obtained data of the integrating document management software T 1 . In S 28 , the display data managing part  22  manages the thus-provided data instead of the data which the part  22  has managed until then (in this example, the contents managed by this part  22  is changed from the data of the list of documents of the folder of the document management database  2  into the data of the list of documents of the folder of the document management database  3 ). Then, in S 29 , the display and operation part  21  displays the data of the list of documents thus newly managed by the display data managing part  22  in the region V 2  of the page displayed on the display monitor of the client computer C 3  instead of the data which has been displayed there until then so as to updates the display contents of the region V 2 . 
     FIG. 12  shows a list of instructions implemented in each of the document management connecting pogroms P 1 , P 2  and P 3 . 
   As described above, each of the document management connecting programs P 1 , P 2  and P 3  has the common interface against the integrating decumbent management software T 1 . That is, for example, the common instructions such as the instructions “CopyDocuments” used for copying a document, the instructions “MoveDocuments” used for moving a document and so forth are implemented there. Further, documents and folders (cabinets) handled by the integrating document management software T 1  have ID numbers attached thereto by the document management connecting programs P 1 , P 2  and P 3 , and, when instructions are given from the integrating document management software T 1  to the document management connecting programs P 1 , P 2  and P 3 , the ID numbers are specified to identify the documents/folders. 
   Each document management connecting program (for example, P2) transforms the given instructions “CopyDocuments” and so forth into sets of instructions so as to adapt the given instructions for the specifications of the interface of the document management database (in this example, 2) which this document management connecting program connect to the integrating document management software T 1 . The document management connecting program (P 2  in this example) manipulates data of the document management database (2 in this example) in accordance with this set of instructions through the server software. Thus, each of the document management connecting programs P 1 , P 2  and P 3  has the common interface against the integrating document management software T 1 , and, thereby, the interface for connecting between each of the document management connecting programs P 1 , P 2  and P 3  and the integrating document management software T 1  is standardized. As a result, when documents of the document management databases  1 ,  2  and  3  are manipulated through the integrating document management software T 1 , document manipulation can be performed without awareness of the types of the connected document management databases  1 ,  2  and  3 . 
     FIG. 13  shows a dialog box for a user to connect/disconnect the respective document management connecting programs P 1 , P 2  and P 3  to/from the integrating document management software T 1  (simply referred to as a ‘connection order dialog box’, hereinafter). This connection order dialog box is managed by the display data managing part  22  of the integrating document management software T 1 , and is displayed on the page displayed on the display monitor of the client computer C 3  in response to a user&#39;s instruction given thereto. 
     FIG. 14  shows a flow chart of operations for manipulating the connection order dialog box. 
   First, in S 101 , a user operates the client computer C 3  so as to cause the connection order dialog box to be displayed. As a result, in S 102 , the connected document management database managing part  23  searches a specific folder under management of the OS installed in the computer C 3 , finds the document management connecting programs (for example, P2) not connected to the integrating document management software T 1  (not loaded in the memory), and connects the found document management connecting programs to the integrating document management stoneware T 1  temporarily (load it in the memory). Then, in S 103 , the connected document management database managing part  23  inquires of the found document management connecting programs (in this example, P2) what are the corresponding document management databases (in this example, 2) this document management connecting programs connect to the integrating document management software T 1 . Then, the connected document management database managing part  23  temporality manages data concerning those document management databases and those document management connecting programs as those of not-connected databases. 
   Then, in S 104 , the display and operation part  21  uses the data managed by the connected document management database management part  23 , and displays the connection order dialog box including a list of the document management databases (in this example, 1 and 3) connected to the integrating document management software T 1 , and a list of document management databases (in this example, 2) not connected to (actually, temporally connected to, however, regarded as those not connected to because the data thereof is managed by the connected document management database managing part  23  as the data of not-connected databases) the iterating document management software T 1  (see  FIG. 13 ). 
   Then, the user operates the computer C 3  so as to connect/disconnect arbitrary document management databases on the thus-displayed connection order dialog box (S 105 ). Then, when finally the user clicks the ‘OK’ button, the display and operation part  23  terminates the display of the connection order dialog box and the connected document management database managing part  23  disconnects the document management connecting programs corresponding to the document management databases which are not instructed by the user to be connected or are instructed to be disconnected in S 105  from the integrating document management software T 1  (unloads it from the memory) in S 106 . Thus, the connected document management database managing part  23  deletes the data concerning those document management connecting programs and corresponding document management databases from the data which this part  23  manages. 
   The integrating document management software T 1 , and the respective document management connecting programs P 1 , P 2  and P 3  are of separate modules (for example, the integrating document management software T 1  is of an executable (EXE) file (.exe) and the respective document management contenting programs are of dynamic link library (DLL) files (.dll)). Thereby, a user can individually perform connection/disconnection of the respective document management connecting programs P 1 , P 2  and P 3  to/from the integrating document management software T 1  dynamically using the connection order dialog box shown in  FIG. 13 . That is, the integrating document management software T 1  loads/unloads the respective document management connecting programs P 1 , P 2  and P 3  in/from the memory in accordance with instructions given by the user.  FIG. 13  shows, for example, a state in which a user has operated the client computer C 3  so as to connect the document management connecting programs P 1  and P 3  to the integrating document management software T 1  and disconnect the document management connecting program P 2  from the integrating document management software T 1 . As a result of the client computer C 3  being thus operated, only the lists (management trees) of the document management databases  1  and  3 , D 1  and D 3  are displayed in the region V 1  of the page displayed on the display monitor of the computer C 3 , as shown in  FIG. 15 . 
     FIG. 16  shows a flow chart of operations for disconnecting document management connecting programs (which may be any of P 1 , P 2  and P 3 ) from the integrating document management software T 1 . 
   First, in S 31 , a user operates the computer C 3  to disconnect arbitrary document management databases (for example, 3) using the connection order dialog box such as that shown in  FIG. 13 , for example. In S 32 , the connected document management database managing part  23  of the integrating document management software T 1  identifies the document management connecting programs (in this example, P3) connecting the document management databases instructed to be disconnected, and, in S 33 , disconnects those document management connecting program from the integrating document management software T 1  (unloads those programs from the memory). 
   Then, in S 34 , the connected document management database managing part  23  deletes the data concerning the disconnected document management connecting programs (in this example, P3) and corresponding document management databases (in this example, 3) which those document management connecting programs have connected to the integrating document management software T 1  from the data (see  FIG. 8 ) which this part  23  manages. In S 35 , the display data managing part  22  deletes the data concerning those document management databases from the data which this part  22  manages. In S 36 , the display and operation part  21  deletes the data (in this example, the folder management tree D 3  of the document management database  3 ) deleted from management of the display data management part  22  from the page displayed on the display monitor. 
     FIG. 17  shows a flow chart of operations for connecting document management connecting programs (which may be any of P 1 , P 2  and P 3 ) to the integrating document management software T 1 . 
   First, in S 41 , a user operates the computer C 3  to connect arbitrary document management connecting programs using the connection order dialog box such as that shown in  FIG. 13 , for example (operates the computer C 3  to connects the document management database  2  in a state in which the document management databases  1  and  3  are connected and the document management database  2  is disconnected, for example). In S 42 , the connected document management database managing part  23  of the integrating document management software T 1  identifies the document management connecting programs (in this example, P2) connecting (although being regarded as not connecting because it is managed as the data of not-connected databases, actually connecting temporarily, as described above) the document management databases (in this example, 2) instructed to be connected. 
   Then, in S 43 , the connected document management database managing part  23  adds the data concerning the document management connecting programs (in this example, P2) identified in S 42  and corresponding document management databases (in this example, 2) which those document management connecting programs connect to the integrating document management software T 1  to the data (see  FIG. 8 ) which this part  23  manages, and finishes the data of those databases to be managed as the data of not-connected databases. As a result, the document management databases (in this example, 2) which have been regarded as being not connected become to be regarded as being connected. In S 44 , the display data managing part  22  adds the data concerning those document management databases to the data which this part  22  manages. In S 45 , the display and operation part  21  adds the data added to the data (in this example, the folder management tree D 2  of the document management database  2 ) which this part  22  manages to the region V 1  of the page displayed on the display monitor of the client computer C 3 . 
   In S 44 , in order that the display data managing part  22  adds the data of the document management databases (in this example, 2) newly connected (having been regarded as being not connected although actually being temporarily connected at the time of display of the connection order dialog box, and coming to be regarded as being connected in S 43 ) to the data which this part  22  manages, operations similar to those of S 2  through S 5  for obtaining data from the document management databases are performed. However, although the data is obtained as a result of being requested to all the document management connecting programs (P 1 , P 2  and P 3 ) managed by the connected document management database managing part  23  in S 2  through S 5 , the data is obtained as a result of being requested only to the document management connecting programs (in this example, P2) newly connected in this case. 
   Further, it is assumed that, in the operations of displaying the data in the region V 1  of the page displayed on the display monitor of the client computer C 3  of  FIG. 9 , the client computer C 3  is operated previously to be instructed to connect all the document management databases ( 1 ,  2  and  3 ), and, when the client computer C 3  is started up in S 1 , the connected document management database managing part  23  of the integrating document management software T 1  causes the data concerning all the document management connecting programs (P 1 , P 2  and P 3 ) and corresponding databases ( 1 ,  2  and  3 ) to the data which this part  23  manages as data of connected databases, and manages the data in such a manner that all the document management databases are regarded as being connected to the integrating document management software T 1 , before S 2 . 
   As described above, according to the present invention, a user can connect only the document management databases to be used. 
   Thus, because each of the document management connecting programs (P 1 , P 2  and P 3 ) has the common interface against the integrating document management software T 1 , all the operation instructions needed for manipulating general document management databases are implemented in each of the document management connecting pogroms (P 1 , P 2  and P 3 ). However, connected document management databases have various sizes, types and managing methods. Therefore, it is not necessarily true that all the instructions implemented in each of the document management connecting programs (P 1 , P 2  and P 3 ) are effective (for example, change of names of documents cannot be performed for the document management database  1 ). Further, as specifications of management of the integrating document management software T 1 , there is a case where it is requested to make a certain manipulation not possible (for example, it is requested to make document deletion not possible for the document management database  2 ). In order to deal with such situations, according to the present invention, the integrating document management software T 1  can inquire of the respective document management connecting programs P 1 , P 2  and P 3  whether operation instructions which the integrating document management software T 1  gives to the respective document management connecting programs P 1 , P 2  and P 3  are effective instructions (that is, instructions (capabilities) supported by the respective document management connecting programs P 1 , P 2  and P 3 ) or allowed instructions. That is, it is possible to obtain the information as to whether the respective instructions implemented in each document management connecting program are supported or allowed by the respective one of the document management databases ( 1 ,  2  and  3 ). As shown in  FIGS. 18A through 18C , setting is made at the time of designing as to whether or not the implemented instructions in each of the document management connecting programs P 1 , P 2  and P 3  are executable. 
     FIG. 19  shows a flow chart of operations at a time of deleting documents. 
   In S 51 , a user operates the client computer C 3  on the page displayed on the display monitor thereof so as to select arbitrary documents of an arbitrary folder of an arbitrary document management database (for example, a document stored in a folder of the document management database  3 ), and delete them. In S 52 , the display data managing part  22  of the integrating document management software T 1  identifies the document management database (in this example, 3) to which the selected documents belong. In S 53 , the connected document management database managing part  23  identifies the document management connecting program (in this example, P3) which connects the identified document management database. In S 54 , the connected document management database managing part  23  inquires of the identified document management connecting program whether deletion of documents is executable. 
   When the answer to the inquiry is ‘non-executable’ (NO in S 55 ), ERROR indication is displayed on the page displayed on the display monitor of the client computer C 3  in S 56 , and the operations are finished. When the answer to the inquiry is ‘executable’ (YES in S 55 ), the connected document management database managing part  23  gives instructions of deleting the documents selected in s 51  to the identified document management connecting program (in this example, P3) in S 57 . (In this example, because the identified document management connecting program is the document management connecting program P 3 , as shown in  FIG. 18C , the deletion of document (DeleteDocuments) is ‘executable’, S 57  is executed.) 
   In S 58 , the document management connecting program (in this example, P3) transforms the given instructions to a corresponding set of instructions so as to adapt the given instructions for the specifications of the interface of the corresponding document management database (in this example, 3) which this document management connecting program connects to the integrating document management software T 1 , and gives the thus-obtained set of instructions to the document management database. In S 59 , the server software of the document management database (in this example, 3) which receives the given set of instructions deletes the documents of the folder selected in S 51  in accordance with the contents of the set of instructions. In S 60 , this server software provides information indicating that the documents have been deleted to the corresponding document management connecting program (in this example, P3) connecting this database to the software T 1 . 
   In S 61 , the document management connecting program which has received this information transforms the information into corresponding information so as to adapt the received information for the specifications of the interface of the integrating document management software T 1 , and provides the thus-obtained information to the software T 1 . In S 62 , the display data managing part  22  deletes the data of the deleted documents from the data which the part  22  manages. In S 63 , the display and operation part  21  deletes the data of the documents deleted from the data which the display data managing part  22  manages from the region V 2  of the page displayed on the display monitor of the client computer C 3 . Thus, the indications of the documents thus deleted from the document management database are deleted from the page displayed on the display monitor. 
   Thus, according to the present invention, when a user wishes to manipulate data of the respective document management databases, it is possible to inquire whether execution of instructions therefor is supported or allowed by each of the document management databases, and obtain answers (see  FIGS. 18A through 18C ) thereto. Thereby, it is possible to prevent useless operations in that instructions not supported by the document management database are given to the document management connecting program, and are transformed into the corresponding set of instructions so as to be adapted for the specifications of the interface of that document management database. Further, problematic operations are prevented from being performed in that not-allowed instructions are given to the document management database through the document management connecting program. 
     FIGS. 20 and 21  show a flow chart of operations of movement of documents from a document management database to a different document management database. 
   Movement of documents from a document management database to a different document management database requires that a condition be satisfied in that the documents to be moved have such an attribute that the documents can be registered in the document management database to which the document is to be moved. For example, when documents to be moved include image data, but a document management database to which the document is to be moved is specially for numerical data, the movement of the documents thereto is not possible. 
   In S 71 , a user operates the client computer C 3  on the page displayed on the display monitor thereof so as to select arbitrary documents of an arbitrary folder of a first document management database (for example, a document stored in a folder of the document management database  1 ), and move them to an arbitrary folder of a second document management database (for example, a folder of the document management database  2 ). In S 72 , the display data managing part  22  of the integrating document management software T 1  identifies the first document management database (in this example, 1) to which the selected documents belong. In S 73 , the display data managing part  22  of the integrating document management software T 1  identifies the second document management database (in this example, 2) to which the folder to which the documents to be moved belong. In S 74 , the connected document management database managing part  23  identifies the document management connecting programs (in this example, P1 and P2) which connect the identified first and second document management databases, respectively. 
   In S 75 , the connected document management database managing part  23  inquires of the identified document management connecting program (in this example, P1) connecting the first document management database (in this example, 1) whether deletion of documents is executable. When the answer to the inquiry is ‘non-executable’ (NO in S 76 ), ERROR indication is displayed on the page displayed on the display monitor of the client computer C 3  in S 77 , and the operations are finished. In S 78 , the connected document management database managing part  23  inquires of the identified document management connecting program (in this example, P 2 ) connecting the second document management database (in this example, 2) whether creation (registration) of documents is executable, as described above. When the answer to the inquiry is ‘non-executable’ (NO in S 79 ), ERROR indication is displayed on the page displayed on the display monitor of the client computer C 3  in S 77 , and the operations are finished. 
   When the answer from each of both the document management connecting programs (in this example, P1 and P2) connecting the first and second document management databases (in this example, 1 and 2), respectively (YES in S 76  and YES in S 79 ), the connected document management database managing part  23  gives instructions to the document management connecting program (in this example, P1) connecting the first document management database (in this example, 1) to obtain the substantial data of the documents (the contents of the documents, for example, WORD™ (Microsoft) files, EXCEL™ (Microsoft) files, and so forth) of the folder selected in S 71 , in S 80 . 
   In S 81 , the document management connecting program (in this example, P1) given the instructions transforms the given instructions into a set of instructions so as to adapt the given instructions for the specifications of the interface of the first document management database (in this example, 1), and gives the thus-obtained set of instructions to this database. In S 82 , the server software of the document management database (in this example, 1) having received the set of instructions obtains from its own database and provides the substantial data of the documents (selected in S 71 ) of the folder specified by the set of instructions to the connecting document management connecting program (in this example, P1). In S 83 , this document management connecting program provides the provided substantial data of the documents to the integrating document management software T 1 . In S 84 , the integrating document management software T 1  temporarily stores the provided substantial data of the documents in the memory, gives instructions to the document management connecting program (in this example, P 2 ) connecting the second document management database (in this example, 2) identified in S 74  to create new documents using the substantial data of the documents thus temporarily stored in the memory in the folder selected in S 71 , and, also, provides the substantial data of the documents temporarily stored in the memory thereto. In S 85 , the document management connecting program (in this example, P2) given the instructions and provided the substantial data of the documents translates those instructions to a set of instructions so as to adapt the given instructions for the specifications of the interface of the second document management database (in this example, 2), and gives the thus-obtained set of instructions and provides the substantial data of the documents to the second document management database. 
   In S 86 , the server software of the second document management database (in this example, 2) receiving the set of insurrections and substantial data of the documents uses the substantial data of the decumbent and creates new documents in the specified folder (specified in S 71  as the folder to which the documents are moved) of its own database. In S 87 , this server software provides the information indicating that the new documents have been created to the corresponding document management connoting program (in this example, P 2 ). In S 88 , the document management connecting program receiving this information transform it into corresponding information so as to adapt it for the specifications of the interface of the integrating document management software T 1 . The display data managing part  22  of the integrating document management software T 1  adds the data concerning the new documents indicated by the provided information to the data which this part  22  manages. Then, the data added to the data which the display data managing part  22  manages, that is, the image indicating the new documents added to the second document management database is added to the region V 2  of the page displayed on the display monitor of the client computer C 3 . 
   In S 89 , the connected document management database managing part  23  of the integrating document management software T 1  gives instructions to the document management connecting program (in this example, P 1 ) connecting the first documents management database (in this example, 1) to delete the substantial data of the documents of the folder selected to move in S 71 . In S 90 , the document management connecting program (in this example, P1) given the instructions transforms the given instructions to a set of instructions so as to adapt the given instructions for the specifications of the interface of the first document management database, and gives the thus-obtained set of instructions to the first document management database. 
   In S 91 , in accordance with the given set of instructions, the server software of the first document management database (in this example, 1) deletes the substantial data of the specified documents from the folder of the first document management database, and provides information indicating that the data is thus deleted to the corresponding document management connecting program (in this example, P1) connecting the first document management database. In S 92 , the document management connecting program provided that information transforms the information into corresponding information so as to adapt the provided information for the specifications of the interface of the integrating document management software T 1 , and provides the thus-obtained information to the software T 1 . 
   In S 93 , the display data managing part  22  of the integrating document management software T 1  deletes the data concerning the deleted documents indicated by the provided information from the data which this part  22  manages. In S 94 , the data deleted from the data which the display data managing part  22  manages, that is, the image indicating the documents deleted from the first document management database is deleted from the region V 2  of the page displayed on the display monitor of the client computer C 3 . 
   Thus, according to the present invention, it is possible to move documents from one document management database to a different document management database. 
   Although the operations of deleting documents and moving documents from one document management database to a different document management database have been described, operations executing other instructions of manipulating documents are performed basically by the same manner as that described above in styles corresponding to the respective manipulating instructions. 
   The integrating document management software T 1  preferably uses graphic items unique to the respective particular document management databases  1 ,  2  and  3  in order for a user to easily/conveniently handling the document management databases when displaying images concerning the respective document management databases on the page displayed on the display monitor of the client computer C 3 . 
     FIG. 22  shows graphic items for displaying data concerning the respective document management databases on the page displayed on the display monitor of the client computer C 3 . Further,  FIG. 23  shows an example in that, such graphic items are used, and data of the folders (folder management trees D 1 , D 2  and D 3 ) of the respective document management databases  1 ,  2  and  3  are actually displayed in the region V 1  of the page displayed on the display monitor of the client computer C 3 , and, also, a list of documents (document 1 through document 8) in the folder F 1  selected therefrom is actually displayed in the region V 2  of the page displayed on the display monitor of the client computer C 3 . As shown in the figure, the graphic items (icons) representing the respective folders of the document management databases  1 ,  2  and  3  are different from each other, and, also, the graphic items (thumbnails) indicating the respective documents in the folder are different from each other. Further, as shown in  FIG. 22 , the thumbnails representing documents in folders of each document management database are different from those of the other document management databases. 
   Resources of the above-mentioned respective icons and thumbnails are (stored in the memory and) managed by the display data managing part  22  of the integrating document management software T 1  for each folder, and, also, for each document as shown in  FIG. 7 . These resources themselves may be possessed by the respective document management connecting programs P 1 , P 2  and P 3  (incorporated in the respective programs) and obtained by the integrating document management software T 1  as the demand arises for being displayed on the page displayed on the display monitor of the client computer C 3 . Alternatively, they may be possessed by the respective document management databases  1 ,  2  and  3  which the document management connecting programs P 1 , P 2  and P 3  connect, and obtained by the integrating document management software T 1  through the respective document management connecting programs P 1 , P 2 , and P 3 , as the demand arises. 
   In many cases, thumbnails representing documents are created as a result of images included in the particular documents are reduced in size. In such a case, the server software of each of the document management databases  1 ,  2  and  3  may create thumbnail images and provide them to the integrating document management software T 1  through a respective one of the document management connecting programs P 1 , P 2  and P 3 . Alternatively, each of the document management connecting programs P 1 , P 2  and P 3  may obtain original images from a respective one of the document management databases  1 ,  2  and  3 , reduce them in size so as to create thumbnails and provide the thus-obtained thumbnails to the integrating document management software T 1 . 
   Thus, according to the present invention, it is possible to use different graphic items (icons representing folders, thumbnails representing documents, and so forth) for particular connected document management databases, and display contents thereof. Thereby, a user can easily distinguish the contents thereof, and display easy for user to tell the contents of the databases can be achieved. 
   The above-described integrating document management software T 1 , respective document management connecting programs P 1 , P 2  and P 3  are previously recorded in a recording medium such as a CD-ROM (or floppy disks, or the like) for example so that a computer having a configuration such as that shown in  FIG. 24  can read the information recorded in the recording medium. Then, the recording medium is loaded in the computer (the client computer C 3  in the embodiment described above) (at the CD-ROM drive, in this example, shown in  FIG. 24 ), the integrating document management software T 1 , respective document management connecting programs P 1 , P 2  and P 3  are read out from the recording medium (in this example, the CD-ROM), are written in another recording medium (the hard disk through the hard disk drive, for example, shown in  FIG. 24 ), are read out therefrom and loaded (written) in the memory, and the CPU executes them appropriately. Thereby the client computer C 3  executes various functions such as those described above. 
   It is possible that all of document management connecting programs such as those P 1 , P 2  and P 3  are not originally recorded in the CD-ROM, but will be additionally installed in the client computer C 3  as plug-in software. 
   Further, it is possible that the client computer C 3  is connected with the server computers C 1  and C 2  through the Internet. 
   Further, it is possible that the integrating document management software T 1 , respective document management connecting programs P 1 , P 2  and P 3  are downloaded into the client computer C 3  from a WEB server through the Internet. 
   A document management system in a second embodiment of the present invention will now be described making reference to figures. 
     FIG. 25  shows a hardware configuration of one example of a document management system common to each embodiment of embodiments which will now be described. 
   The document management system shown in  FIG. 25  includes an electronic filing apparatus including a scanner  101  for inputting original images, a monitor  102  for display monitoring thus-input original images on a screen thereof, a keyboard  103  and a mouse  104  for giving instructions for operations concerning display monitor on the screen and the system in general, an optical disk drive  105  for storing original images input as mentioned above or in other ways, a printer  107  for printing out original images display monitored on the screen of the monitor  102 , an electronic filing apparatus body  7  including a magnetic disk drive for storing a database of names of input original images, a CD-ROM drive for loading executable files (program files) and a control part controlling the respective parts/components mentioned above. 
     FIG. 26  shows a general functional block diagram of the above-described document management system shown in  FIG. 25 . 
   The document management system includes a main storage medium  111  storing the executable files (program files), document-information management files, section-information management files, substantial-data files and so forth, a main-storage control part  112  controlling writing data to the main storage medium  111  and reading data therefrom, the display monitor  102  displaying a document management page described later and so forth, a display control part  113  controlling display on the display monitor  102 , the keyboard  103  and mouse  104  for giving instructions for operations concerning display on the screen and the system in general, an inputting control part  114  controlling with regard to inputting instructions for operations through the keyboard  103  and mouse  104  and a memory  115  including a RAM for loading necessary files therein read out from the main storage medium  111 , and the control part  116  including a CPU executing programs of the executable files loaded in the memory  115  so as to control the contents of the document-information management files, section-information management files and so forth. 
   The above-mentioned main storage medium  111  includes the magnetic disks storing the document-information management files and section-information management files functioning as databases, the optical disk storing the substantial-data files and the CD-ROM in which the executable files (program files) are recorded. The executable files are loaded in the memory  115  and executed by the control part  116  so that functions of the respective embodiments of the present invention which will be described later are executed. 
   The operations of the document management system having the above-described configuration will now be described. 
     FIG. 27  shows an example of the document management page normally displayed on the display monitor  102  of the system. 
   This page includes a region displaying lists of folders as a tree structure, a region displaying a list of documents existing in the folders, and a menu region for a user to manipulate the folders and documents. 
   When programs of the above-mentioned executable files are executed, all the executable files are loaded in the memory  115 . Further, when a list of document is displayed on the display monitor  102 , information of the document lists and information of section lists are obtained from the document-information management files and section-information management files, are loaded in the memory  115 , and are held there. 
   The document-information management files and section-information management files each having configurations shown in  FIG. 28  are provided for each folder, and, thereby, information of all the documents of the folder and information of all the sections constituting the documents are stored in the files, respectively. 
   In the document-information management file, a list of the documents (including document names and information regarding the sections belonging to each document) is stored orderly. Further, in the section-information management file, configurations (including positions/addresses of the substantial file data and so forth) of the sections are stored orderly. 
   In the document-information management file, as well as document names of the documents managed there, contents indicating which positions of the section-information management file correspond to the top indexes of the respective documents are stored. 
   When a document consists of a plurality of sections, a link is provided between each section and a section subsequent thereto from the top section to the last section of the sections constituting the document. The top section stores index information indicating that this section is the top one, and the last section stores a terminate index indicating that this section is followed by no section. 
   A document coupling process will now be described. This process is a process of linking the top section of a coupling source document (to be coupled to another document) to the last section of a coupling target document (coupled by another document), and the information from which the information of the coupling source document is deleted is stored in both the document-information management file and section-information management file. A document decomposing process will now be described. This process is a process of creating a number of documents for the respective sections constituting an original document, storing document names thereof in the document-information management file, deleting the links between the sections, and storing information relating to the respective sections in both the document-information management file and section-information management file for the respective created documents (That is, the particular sections which have constituted the original document are registered as the respective particular new documents). 
   The above-mentioned operations of creating/deleting links are performed in the memory  115  as a result of a program of a predetermined executable file being executed by the control part  116 . 
   First, as a presupposition, it is assumed that, an operator (user) selects (through a mouse click or the like) a plurality of documents each consisting of a single section stored in a folder in the page shown in  FIG. 27 , operates the menu region (through a mouse click or the like) of the page shown in  FIG. 27  so as to instruct the system to perform the document coupling process, the respective documents having document names given thereto, for example, ‘A’, ‘B’, ‘C’, . . . , and the section names thereof being ‘a’, ‘b’, ‘c’. As a result of those operations being performed by the operator on the system, the control part  116  executes a program of a predetermined executable file, and, thereby, creates links between the sections of the selected documents in the memory  115 , and thus couples these documents to each other. 
   At this time, control part  116  determines a document name of the document obtained from the coupling, as ‘A’ in accordance with the document name ‘A’ of the first selected document, and section names constituting the document as ‘a’, ‘b’, ‘c’, . . . in accordance with the original section names thereof. 
   It is assumed that the thus-obtained document constituting the plurality of sections is displayed in the page shown in  FIG. 27 . In this case, it is assumed that all the information of the displayed documents is loaded in the memory  115 . 
     FIG. 29  shows a flow chart of operations of a second embodiment of the present invention. 
   First, in S 201 , an operator selects the above-mentioned document ‘A’ consisting of the plurality of sections from the page shown in  FIG. 27 , and operates the menu region so as to instruct the system to display a ‘property of document’. 
   As a result, the control part  116  determines from the information loaded in the memory  115  in S 202  whether or not the thus-selected document is a document consisting of a plurality of sections. In this case, the document selected in S 201  is the document consisting of the popularity of section as mentioned above. In the case, the control part  116  displays on the display monitor  102  a property dialog box in which a button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ is highlighted as shown in  FIG. 30 . 
   Then, the operator pushes the highlighted button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ (through a mouse click), in S 203 . 
   As a result, the control part  116  creates, for the sections constituting the document, section names each consisting of the document name ‘A’ and an index, in accordance with the document name ‘A’ of this document, in S 204 . Specifically, for the section names ‘a’, ‘b’, ‘c’, . . . , ‘A-1’, ‘A-2’, ‘A-3’, . . . are created, respectively. Then, the control part  116  compares the thus created section names with the existing section names in the memory  115 . In this case, the created section names are different from the existing section names. When the change is thus found, the control part  116  changes the relevant section-information management file stored in the main storage medium  111  in accordance with the change. 
   Then, in S 205 , the control part  116  obtains information from the section-information management file changed in S 204  stored in the main storage medium  111 , and, in accordance with the thus-obtained information, updates the information in the memory and the display on the display monitor  102 . 
     FIGS. 30 and 31  show examples of the above-mentioned property dialog box displayed on the display monitor  102 . 
   However, this example is different from the above-mentioned example. In this example, the document name consisting of a plurality of sections is ‘PATENT’, and the section names of the sections constituting this document are ‘SUMMARY’, ‘MEETING MINUTES’, ‘SPECIFICATION’, ‘DRAWINGS’, . . . , respectively. 
     FIG. 30  shows the property dialog box shown in the display monitor  102  in S 202  mentioned above in this example. 
   When the operator pushes the button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ in this state, the original section name ‘SUMMARY’ is changed into ‘PATENT-1’ in accordance with the document name ‘PATENT’ as a result of the index ‘-1’ being added thereto. Accordingly, the display is updated into the state shown in  FIG. 31  in S 205 . 
   The control part  116  repeats the above-mentioned operations, and, thereby, changes the section names of the respective sections constituting the above-mentioned document ‘PATENT’ into ‘PATENT-1’, ‘PATENT-2’, ‘PATENT-3’, . . . , in sequence, and, then, when completing changing the section names of all the sections constituting the document ‘PATENT’, the control part  116  finishes this process. 
   The operator should perform the operation of pushing the button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ only once when the first section name ‘SUMMARY’ is displayed, and, thereby, the section names subsequent thereto are automatically changed as described above in accordance with the document name. 
   Thus, the operation performed by the operator triggers creation of each section name by a method of adding an index to a document name, and, thereby, each section is named with a name related to the document name. As a result, it is easy for the operator to understand relationship between sections in the document, and understand that each section relates the document. 
     FIG. 32  shows a flow chart of operations of a third embodiment of the present invention. 
   First, in S 211 , an operator selects the above-mentioned document ‘A’ consisting of the plurality of sections from the page shown in  FIG. 27 , and operates the menu region so as to instruct the system to display a ‘property of document’. 
   As a result, the control part  116  determines from the information loaded in the memory  115  in S 212  whether or not the thus-selected document is a document consisting of a plurality of sections. In this case, the document selected in S 211  is the document consisting of the popularity of section as mentioned above. In the case, the control part  116  displays on the display monitor  102  a property dialog box in which a button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ is highlighted. 
   Then, in S 213 , the operator enters a desired type of index in a box of ‘SPECIFY INDEX’ in the property dialog box displayed in S 212  by working the keyboard, and pushes the highlighted button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’, in S 213 . It is assumed that the type of index entered by the operator is ‘(n)’. 
   As a result, the control part  116  creates, for the sections constituting the document, section names each consisting of the document name ‘A’ and an index, in accordance with the document name ‘A’ of this document in S 214 . At this time, each section name created has an index in the type specified in S 213  added. Specifically, for the section names ‘a’, ‘b’, ‘c’, . . . , ‘A(1)’, ‘A(2)’, ‘A(3)’, . . . are created as the new section names, respectively. Then, the control part  116  compares the thus created section names with the existing section names in the memory  115 . In this case, the created section names are different from the existing section names. When the change is thus found, the control part  116  changes the section-information management file stored in the main storage medium  111  in accordance with the change. 
   Then, in S 215 , the control part  116  obtains information from the section-information management file changed in S 214  stored in the main storage medium  111 , and, in accordance with the thus-obtained information, updates the information in the memory and the display on the display monitor  102 . 
     FIGS. 33 and 34  show examples of the above-mentioned property dialog box displayed on the display monitor  102 . 
   However, this example is different from the above-mentioned example. In this example, the document name consisting of a plurality of sections is ‘PATENT’, and the section names of the sections constituting this document are ‘SUMMARY’, ‘MEETING MINUTES’, ‘SPECIFICATION’, ‘DRAWINGS’, . . . , respectively. 
     FIG. 33  shows the property dialog box shown in the display monitor  102  in S 212  mentioned above in this example. 
   When the operator enters ‘(n)’ in the box of ‘SPECIFY INDEX’ and pushes the button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ in this state, the original section name ‘SUMMARY’ is changed into ‘PATENT(1)’ in accordance with the document name ‘PATENT’ as a result of the index ‘(1)’ in the specified type being added thereto. Accordingly, the display is updated into the state shown in  FIG. 34  in S 215 . 
   The control part  116  repeats the above-mentioned operations, and, thereby, changes the section names of the respective sections constituting the above-mentioned document ‘PATENT’ into ‘PATENT(1)’, ‘PATENT(2)’, ‘PATENT(3)’, . . . , in sequence, and, then, when completing changing the section names of all the sections constituting the document ‘PATENT’, the control part  116  finishes this process. 
   The operator should perform the operations of entering the desire type of index in the box of ‘SPECIFY INDEX’ and pushing the button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ only once when the first section name ‘SUMMARY’ is displayed, and, thereby, the section names subsequent thereto are automatically changed as described above in accordance with the document name. 
   Thus, it is possible for an operator to specify the type of index added as a part of each section name to a desired one, and, thereby, in comparison to the case of the above-described second embodiment where an index is added in a type which is of system default, it is possible to improve work efficiency because each section name is created in accordance with the operator&#39;s intention. 
     FIG. 35  shows a flow chart of operations of a fourth embodiment of the present invention. 
   First, in S 221 , an operator selects the above-mentioned document ‘A’ consisting of the plurality of sections from the page shown in  FIG. 27 , and operates the menu region so as to instruct the system to display a ‘property of document’. 
   As a result, the control part  116  determines from the information loaded in the memory  115  in S 222  whether or not the thus-selected document is a document consisting of a plurality of sections. In this case, the document selected in S 221  is the document consisting of the popularity of section as mentioned above. In the case, the control part  116  displays on the display monitor  102  a property dialog box in which a button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ is highlighted, and a list of types of index stored in the main storage medium is loaded in the memory  115  and can be referred to (in a manner of a well-known pull-down menu, in the example of  FIG. 36 ). It is assumed that the above-mentioned list of types of index is previously registered by the operator, and, for example, includes ‘n-th’, ‘-n’, ‘OF ITEM n’, ‘of the month of n’, and so forth. 
   Then, in S 223 , the operator selects a desired type of index from the list of types of index appearing from a box of ‘SPECIFY INDEX’ in the property dialog box displayed in S 222  by working the keyboard, and pushes the highlighted button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’, in S 223 . It is assumed that the type of index entered by the operator is ‘OF ITEM n’. 
   As a result, the control part  116  creates, for the sections constituting the document, section names each consisting of the document name ‘A’ and an index, in accordance with the document name ‘A’ of this document in S 224 . At this time, each section name created has an index in the type selected in S 223  added. Specifically, for the section names ‘a’, ‘b’, ‘c’, . . . , ‘A OF ITEM 1’, ‘A OF ITEM 2’, ‘A OF ITEM 3’, . . . are created as the new section names, respectively. Then, the control part  116  compares the thus created section names with the existing section names in the memory  115 . In this case, the created section names are different from the existing section names. When the change is thus found, the control part  116  changes the section-information management file stored in the main storage medium  111  in accordance with the change. 
   Then, in S 225 , the control part  116  obtains information from the section-information management file changed in S 224  stored in the main storage medium  111 , and, in accordance with the thus-obtained information, updates the information in the memory and the display on the display monitor  102 . 
     FIGS. 36 and 37  show examples of the above-mentioned property dialog box displayed on the display monitor  102 . 
   However, this example is different from the above-mentioned example. In this example, the document name consisting of a plurality of sections is ‘PATENT’, and the section names of the sections constituting this document are ‘SUMMARY’, ‘MEETING MINUTES’, ‘SPECIFICATION’, ‘DRAWINGS’, . . . , respectively. 
     FIG. 36  shows the property dialog box shown in the display monitor  102  in S 222  mentioned above in this example. 
   When the operator selects ‘OF ITEM n’ from the list appearing from the box of ‘SPECIFY INDEX’ and pushes the button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ in this state, the original section name ‘SUMMARY’ is changed into ‘PATENT OF ITEM 1’ in accordance with the document name ‘PATENT’ as a result of the index ‘OF ITEM 1’ in the selected type being added thereto. Accordingly, the display is updated into the state shown in  FIG. 37  in S 225 . 
   The control part  116  repeats the above-mentioned operations, and, thereby, changes the section names of the respective sections constituting the above-mentioned document ‘PATENT’ into ‘PATENT OF ITEM 1’, ‘PATENT OF ITEM 2’, ‘PATENT OF ITEM 3’, . . . , in sequence, and, then, when completing changing the section names of all the sections constituting the document ‘PATENT’, the control part  116  finishes this process. 
   The operator should perform the operations of selecting the desire type of index from the box of ‘SPECIFY INDEX’ and pushing the button ‘SECTION NAME ACCORD WITH DOCUMENT NAME’ only once when the first section name ‘SUMMARY’ is displayed, and, thereby, the section names subsequent thereto are automatically changed as described above in accordance with the document name. 
   Thus, the operator previously registers desired types of index, and selects one thereof so that each section name is produced using the selected type of index. Thereby, in comparison to the case in the above-descried third embodiment where the operator inputs a type of index each time the function is executed, it is possible to improve work efficiency. 
     FIG. 38  shows a flow chart of operations of a fifth embodiment of the present invention. 
   As a presupposition, it is assumed that a plurality of documents are already registered in the main storage memory  111 , and are displayed in the page shown in  FIG. 27 . In this state, all the information of the documents displayed is loaded in the memory  115 . Further, setting of ‘to change section names at a time of document coupling’ is written in a system setting information file stored in the main storage medium  111 , and the information of this setting is loaded in the memory  115  at a time of starting up of the document management system. 
   In S 231 , an operator selects a plurality of documents from the page of  FIG. 27 , and instructs the system to perform ‘document coupling’ by operating the menu region of the page. 
   As a result, the control part  116  executes a document coupling process as described above the in S 232 . As a result, the plurality of documents selected in S 231  are coupled to each other, and become a single document. Above, the document coupling process has been described as a process of coupling a coupling-source document to a coupling-target document. However, when more than two documents are coupled to each other, two of them are coupled to one another as described above and become a coupling-source document, the third one becomes a coupling-target document, and the same process is executed for these documents. Coupling of subsequent documents will be performed in the same manner. 
   Then, in S 233 , the control part  116  refers to the information concerning the setting of ‘to change section names at a time of document coupling’, and, thereby, recognizes that this setting is made. As a result, the control part  116  creates section names of the respective sections constituting the document (for example, it is assumed that this document has a document name ‘PATENT’) obtained from the plurality of document through the document coupling process in S 232  as a result of adding indexes to the document name, respectively. (In this example, the thus-created respective section names are ‘PATENT-1’, ‘PATENT-2’, ‘PATENT-3’.) 
   Then, in S 234 , the control part  116  relates the thus-created section names of the respective sections to the corresponding sections, respectively, and stores them in the section-information management file stored in the main storage medium  111 . 
   Then, in S 235 , the control part  116  obtains from the main storage medium  111  the document information which is changed through the document coupling process in S 232 , updates the display of the page on the display monitor  102  using this new document information, and finishes the process. 
   In each of the above-described second, third and fourth embodiments, section names in accordance with a document name are created as a result of an operator performing the special operation on the system after performing a document coupling process. That is, the operator&#39;s special operation triggers the execution of the function of each embodiment. Therefore, the operator should perform the special operation each time. In contrast to this, in the fifth embodiment, as a result of the operator previously performing the setting of ‘to change section names at a time of document coupling’, the section names are automatically changed into ones consisting of the document name and indexes added thereto, respectively, when a document coupling process is performed. Accordingly, work efficiency can be improved. 
     FIG. 39  shows a flow chart of operations of a sixth embodiment of the present invention. 
   As a presupposition, it is assumed that, for example, already the operations same as those of one of the above-described second, third, fourth and fifth embodiments are performed, a document consisting of a plurality of sections each having a section name (in this example, ‘PATENT-1’, ‘PATENT-2’, ‘PATENT-3’, for example) consisting of a document name (for example, ‘PATENT’) of the document and an index are registered in the main storage medium  111 , and are displayed in the page of  FIG. 27  on the display monitor  102 . In this state, the information of the displayed documents is loaded in the memory  115 . 
   That is, an embodiment can be created from a combination of the sixth embodiment and any of the second, third, fourth and fifth embodiments. In this case, the control part  116  executes a program of a predetermined executable file, and, thereby, can perform the operations of any of the second, third, fourth and fifth embodiments, and, also, can perform the operations of the sixth embodiment which will now be described. 
   First, in S 241 , an operator selects the above-mentioned document consisting of the plurality of sections from the page of  FIG. 27 , and instructs the system to perform a ‘document decomposing process’ by operating the menu region of the page. 
   As a result, the control part  116  executes the above-described document decomposing process for the document selected in S 241 , in S 242 . 
   Then, in S 243 , the control part  116  causes the document names of the documents obtained from the document decomposing process to be the same as those of the section names of the sections constituting the respective documents. (In the above-mentioned example, the document names of the respective documents become ‘PATENT-1’, ‘PATENT-2’, ‘PATENT-3’. 
   Then, in S 244 , the control part  116  relates the document names of the respective documents obtained in S 243  to the corresponding documents, respectively, and stores them in the document-information management file stored in the main storage medium  111 . 
   Then, in S 245 , the control part  116  obtains the document information thus changed in S 244  from the main storage medium  111 , uses this information and thereby updates the display in the page, and finishes the process. 
   Thus, when a document having section names of the sections constituting the documents changed through the operations same as those of any of the above-described second, third, fourth and fifth embodiments is decomposed to documents each constituting a respective one of those sections, the documents thus obtained through the decomposition are named with the section names of the respective sections. Thereby, when a document is decomposed into a plurality of documents, it is possible to determine which document was a source of each of the documents obtained through the decomposition. As a result, work efficiency can be improved. 
     FIG. 40  shows a flow chart of operations of a seventh embodiment of the present invention. 
   First, as a presupposition, it is assumed that, as a result of the operations same as those of the above-described sixth embodiment being performed, a document consisting of a plurality of sections each having a section name created using the document name of the document and an index is decomposed into documents each consisting of a respective one of those sections, the document names of these documents (in the above-mentioned example, ‘PATENT-1’, ‘PATENT-2’ and ‘PATENT-3’, for example) obtained through the decomposition are caused to be the same as those of the section names of the respective sections, and those documents are registered in the main storage medium  111 . 
   That is, an embodiment can be created from a combination of the seventh embodiment and sixth embodiment. In this case, the control part  116  executes a program of a predetermined executable file, and, thereby, can perform the operations of the sixth embodiment, and, also, can perform the operations of the seventh embodiment which will now be described. Further, similarly, an embodiment can be created from a combination of an embodiment created from a combination of the sixth embodiment and any of the second, third, fourth and fifth embodiments, and the seventh embodiment. That is, an embodiment can be created having the function of any of the second, third, fourth and fifth embodiment, the function of the sixth embodiment and the function of the seventh embodiment together. 
   First, in S 251 , an operator instructs the system to perform ‘search’ by operating the menu region of the page shown in  FIG. 27 . 
   As a result, in S 252 , the control part  116  displays a search dialog box such as that shown in  FIG. 41  (however, each of the space of ‘DOCUMENT NAME’, the space of ‘INDEX TYPE’ and the space (check box) of ‘SEARCH WITH INDEX’ being blank) on the display monitor  102 . 
   The operator enters (inputting by working the keyboard  103 ) a part (in the above-mentioned example, ‘PATENT’) of a document name of a document to be searched for, resulting from removing the index, in the space of ‘DOCUMENT NAME’ of the search dialog box displayed in S 252 , enters the type of the index of the document name of the document to be searched for, in the space of ‘INDEX TYPE’ of the search dialog box and enters (through a mouse  104  click) a check mark (           ) in the space of ‘SEARCH WITH INDEX’ of the search dialog box, in S 253 .  FIG. 41  shows the result thereof. Then, the operator pushes (performs a mouse  104  click) the button ‘SEARCH’ of the search dialog box.
   As a result, the control part  116  executes a search process which will be described later, in S 254 . 
   Then, when finishing the search process, the control part  116  displays on the display monitor  102  a list of search results in a search result dialog box, in S 255 .  FIG. 42  shows an example of the search result dialog box displayed then. 
   The search process executed in S 254  by the control part  116  will now be described making reference to  FIG. 43 . 
   First, in S 261 , the control part  116  loads the relevant document-information management file stored in the main storage medium  111  into the memory  115 , and sets a pointer at the first document name in the file. 
   Then, in S 262 , the control part  116  determines whether or not that document name (at which the pointer is currently set) is the last document name in the file. When determining in S 262  that the document name is the last document name in the file, the control part  116  finishes the search process. 
   When determining in S 262  that the document name is not the last document name in the file, the control part  116  determines in S 263  whether or not the character string (in the above-mentioned example, ‘PATENT’) entered in the space of ‘DOCUMENT NAME’ of the search dialog box in S 253  of  FIG. 40  coincides with the top character string of the document name at which the pointer is currently set. 
   When no coincidence results from S 263 , the operation flow moves to S 266 , and the pointer is moved to the subsequent document name. 
   When the coincidence results from S 263 , it is determined in S 264  whether or not the latter character string obtained from removing the part (in the above-mentioned example, ‘PATENT’) of the coincidence in S 263  from the document name at which the pointer is currently set coincides with an index in the type entered in the space of ‘INDEX TYPE’ of the search dialog box in S 253  of  FIG. 40 . 
   When no coincidence results from S 264 , the operation flow moves to S 266 , and the pointer is moved to the subsequent document name. 
   When the coincidence results from S 264 , the operation flow moves to S 265 , and that document name (at which the pointer is currently set) is stored in the memory  115  as an element of the list of search results. 
   As a result of the loop of S 262 , S 263 , S 264 , S 265  and S 266  being repeated, all the document names in the document-information management file are checked, document names each consisting of a combination of the character string of the space of ‘DOCUMENT NAME’ of the search dialog box and an index in the type of the space of ‘INDEX TYPE’ of the search dialog box are stored in the memory  115  as elements of the list of search results, and, thus, the list of search results is produced. 
   In the example of  FIG. 41 , when the document names each having the character string ‘PATENT’ at the top thereof and an index of the type of ‘-n’ in the remainder are those ‘PATENT-1’, ‘PATENT-3’ and ‘PATENT-2’, the list of search results shown in  FIG. 42  is produced and displayed. 
   Thus, as a result of searching the document-information management file for documents each having a document name consisting of a common document name and an index in a common type, and obtaining a list thereof, it is possible to obtain the list of documents which were originally coupled to each other, easily, when the documents obtained as a result of a document decomposing process being performed are dispersed in the document-information management file. As a result, work efficiency can be improved. 
     FIG. 44  shows a flow chart of operations of an eighth embodiment of the present invention. 
   First, same as in the case of the above-described seventh embodiment, as a presupposition, it is assumed that, as a result of the operations same as those of the above-described sixth embodiment being performed, a document consisting of a plurality of sections each having a section name created using the document name of the document and an index is decomposed into documents each consisting of a respective one of those sections, the document names of these documents (in the above-mentioned example, ‘PATENT-1’, ‘PATENT-3’ and ‘PATENT-2’, for example) obtained through the decomposition are caused to be the same as those of the section names of the respective sections, and those documents are registered in the main storage medium  111 . In this case, it is also assumed that those document names are displayed in the page of  FIG. 27  on the display monitor  102 , and all the information of the displayed documents is loaded in the memory  115 . 
   That is, an embodiment can be created from a combination of the eighth embodiment and sixth embodiment. In this case, the control part  116  executes a program of a predetermined executable file, and, thereby, can perform the operations of the sixth embodiment, and, also, can perform the operations of the eighth embodiment which will now be described. Further, similarly, an embodiment can be created from a combination of an embodiment created from a combination of the sixth embodiment and any of the second, third, fourth and fifth embodiments, and the eighth embodiment. That is, an embodiment can be created having the function of any of the second, third, fourth and fifth embodiment, the function of the sixth embodiment and the function of the eighth embodiment together. 
   First, in S 271 , an operator selects (through a mouse click) a document (for example, ‘PATENT-1’) from the page shown in  FIG. 27 , and instructs the system to perform ‘search’ by operating the menu region. 
   As a result, in S 272 , the control part  116  displays a search dialog box such as that shown in  FIG. 45  in which the document name of the document selected in S 271  is substituted for the space of ‘DOCUMENT NAME’ (however, the space (check box) of ‘SEARCH WITH INDEX’ is blank) on the display monitor  102 . 
   The operator enters (through a mouse  104  click) a check mark (           ) in the space of ‘SEARCH WITH INDEX’ of the search dialog box, in S 273 .  FIG. 45  shows the result thereof. Then, the operator pushes (performs a mouse  104  click) the button ‘SEARCH’ of the search dialog box.
   As a result, the control part  116  extracts the index from the character string substituted for the space of ‘DOCUMENT NAME’ of the search dialog box in S 272 , and, thus, divides that character string into the ‘part having the index removed therefrom’ and the ‘index’, in S 274 . 
   Then, the control part  116  executes the above-described search process shown in  FIG. 43 , in S 275 . However, in this case, the control part  116  searches for documents each having a document name having the ‘part having the index removed therefrom’ obtained from dividing the document name in S 274  at the top thereof and an index in the type same as the type of the ‘index’ obtained from dividing the document name in S 274  in the remainder. For example, the ‘part having the index removed therefrom’ is ‘PATENT’ and the ‘index’ is ‘-1’, in the above-mentioned example. Therefore, documents each having a document name having ‘PATENT’ at the top and an index in the index type ‘-n’ in the remainder are searched for. 
   Then, when finishing the search process, the control part  116  displays on the display monitor  102  a list of search results in a search result dialog box, in S 276 .  FIG. 46  shows an example of the search result dialog box displayed then. 
   A method of extracting the index from a document name in S 274  will now be described. For example, types of index of system default and specified and/or registered by an operator in the past are stored as a list of types of index. Then, the types of index included in the list of types of index are compared with a character string in a latter part of a document name, and, when the type of index corresponding to the character string in the latter part of the document name is found out from the list of types of index, the corresponding character string is extracted as an index. 
   Thus, as a result of searching the document-information management file for documents each having a document name consisting of a common document name and an index in a common type, and obtaining a list thereof, it is possible to obtain the list of documents which were originally coupled to each other, easily, when the documents obtained as a result of a document decomposing process being performed are dispersed in the document-information management file. As a result, work efficiency can be improved. 
   Further, in contrast to the case of the seventh embodiment, it is possible to further improve the work efficiency because it is not necessary for an operator to input a document name and a type of index by working the keyboard  103 . 
     FIG. 47  shows a flow chart of operations of a ninth embodiment of the present invention. 
   This embodiment is an embodiment having the following function in addition to the function of the above-described seventh or eighth embodiment. 
   As a presupposition, it is assumed that the dialog box of a list of document search results is displayed on the display monitor  102  as a result of the function of the seventh or eighth embodiment being executed. However, in this embodiment, as shown in  FIG. 48 , a button ‘SORT AND COUPLE’ is added to the dialog box. Further, it is assumed that the document information displayed there is loaded in the memory  115 . 
   First, in S 281 , an operator pushes (through a mouse  104  click) the button ‘SORT AND COUPLE’ of the dialog box of the list of document search results displayed on the display monitor  102 . 
   As a result, in S 282 , the control part  116  executes a sort process for the documents listed in the document list displayed in the dialog box of the list of document search results, in order of index. For example, in the example of  FIG. 48 , sort is performed in order of index of the indexes ‘-1’, ‘-3’ and ‘-2’ of the document names ‘PATENT-1’, ‘PATENT-3’ and ‘PATENT-2’ so that those documents names are sorted into those in the order of ‘PATENT-1’, ‘PATENT-2’ and ‘PATENT-3’. 
   Then, the control part  116  couples together the documents listed in the document list displayed in the dialog box of document search results, in the order obtained in S 282 , in S 283 . That is, the document ‘PATENT-2’ (coupling source) is coupled to the document ‘PATENT-1’ (coupling target), and, then, to the document (coupling target) resulting from this coupling, the document ‘PATENT-3’ (coupling source) is coupled (see the above description of the document coupling process). 
   Then, the control part  116  obtains the document information from the document-information management file changed as a result of S 283 , and updates the display on the display monitor  102  in accordance with the thus-obtained document information, in S 284 , and finishes this process. 
   Although the ninth embodiment has the function of the seventh or eighth embodiment and the function shown in  FIG. 47  added thereto as described above, it is not necessary to be limited thereto, and another embodiment may be created as a result of the function of the sixth embodiment being further added, and another embodiment may be created as a result of the function of any of the second, third, fourth and fifth embodiments being further added. 
   Thus, based on search results obtained from execution of the function of seventh or eighth embodiment, sort is performed in order of index of the indexes included in the document names of the respective documents, and the documents are coupled to each other in order of the sort result. Thereby, when the information of documents obtained from document decomposition is dispersed in the document-information management file as a result of execution of the document decomposing process, it is easy to couple these documents again. As a result, it is possible to improve work efficiency. 
     FIG. 49  shows a flow chart of operations of a tenth embodiment of the present invention. 
   Same as the case of the above-described ninth embodiment, the tenth embodiment has the function of the seventh or eighth embodiment and the following function added thereto. 
   As a presupposition, it is assumed that the dialog box of a list of document search results is displayed on the display monitor  102  as a result of the function of the seventh or eighth embodiment being executed. However, in this embodiment, as shown in  FIG. 50 , a button ‘COUPLE’ is added to the dialog box. Further, it is assumed that the document information displayed there is loaded in the memory  115 . 
   First, in S 291 , an operator pushes (through a mouse  104  click) the button ‘COUPLE’ of the dialog box of the list of document search results displayed on the display monitor  102 . 
   As a result, the control part  116  couples together the documents listed in the document list displayed in the dialog box of the list of document search results in S 292  (see the above description of the document coupling process). 
   As mentioned above, generally, the document name of a document is created from the section name of the first section of the sections constituting the document. Therefore, if so, a document name of the document obtained from the document coupling process is the section name of the first section of the sections constituting the document, that is, in the above-mentioned example, the section name ‘PATENT-1’ of the first section of the sections constituting the document resulting from the document coupling process becomes the document name of the document as it is. 
   Then, in S 293 , the control part  116  deletes the index from the thus-obtained document name, and uses the remainder as a new document name. That is, the document name of the document is determined to be the remainder of deletion of the index from the section name of the first section of the sections constituting that document. In the above-mentioned example, the index ‘-1’ is deleted from ‘PATENT-1’, and the remainder ‘PATENT’ is determined as the new document name. 
   Then, the control part  116  relates the document name obtained in S 293  to the corresponding document and stores it in the document-information management file stored in the main storage medium  111  in S 294 . 
   Then, in S 295 , the control part  116  obtains the document information from the document-information management file changed as a result of S 294 , and updates the display on the display monitor  102  in accordance with the thus-obtained document information, and finishes this process. 
   In the tenth embodiment, operations as in the ninth embodiment in that a sort process is performed before a document coupling process, and the document coupling is performed in the order obtained from the sort process are not performed. However, it is also possible to add the function of the ninth embodiment to the tenth embodiment so that a sort process is performed before a document coupling process, the document coupling is performed in the order obtained from the sort process, the index is deleted from the document name of the resulting document and the remainder is used as a new document name of that document. 
   Although the tenth embodiment has the function of the seventh or eighth embodiment and the function shown in  FIG. 49  added thereto as described above, it is not necessary to be limited thereto, and another embodiment may be created as a result of the function of the sixth embodiment being further added, and another embodiment may be created as a result of the function of any of the second, third, fourth and fifth embodiments being further added. 
   Thus, after a document coupling process is executed based on search results obtained from execution of the function of seventh or eighth embodiment, the remainder of deletion of the index from the section name of the first section of the sections constituting the resulting document is determined as the document name of that document. As a result, an appropriate document name is created automatically. Thereby, it is not necessary for an operator to change the document name manually, and thus, work efficiency can be improved. 
   An embodiment of the present invention having all or any combination of the functions of the above-described second through tenth embodiments may be created, and, an operator can use these functions compositely, and select functions to be used therefrom appropriately. Thereby, it is possible to further improve the work efficiency with regard to document coupling/decomposing. 
   The present invention in an aspect corresponding to any of the above-described second through tenth embodiments may be applied to an integrating document management system such as that described above in the first embodiment of the present invention shown in  FIG. 3 . 
   It is necessary to be limited to the above-mentioned example of configuration. The present invention in an aspect corresponding to any of the above-described second through tenth embodiments may also be applied to another example of system configuration in which further many client computers, server computers are connected to the network, the document management database, integrating document management software, document management connecting programs exist in each client computer, and the document management database exists in each server computer, another example of system configuration in which only the integrating document management software and document management connecting programs exist but no document management databases exist in each client computer, and so forth. 
   First, a case where the present invention in an aspect corresponding to any of the above-described second through tenth embodiments is applied to any of the computers C 1 , C 2  and C 3  shown in  FIG. 3  will now be described. 
   In such a case, it is assumed that, in each of the computers C 1 , C 2  and C 3  having a configuration such as that shown in  FIG. 24 , executable files for performing the functions of the above-described second through tenth embodiments are previously recorded in a CD-ROM shown in the figure, the document management database (including substantial-data files, document-information management files and section-information management files) and corresponding database software are stored in hard disks of the hard disk drive shown in the figure, and the integrating document management software T 1 , and respective document management connecting programs P 1 , P 2  and P 3  are stored in the above-mentioned hard disks. 
   In the client computer C 3  shown in  FIG. 3 , the integrating document management software T 1 , and respective document management connecting programs P 1 , P 2  and P 3  are appropriately read out from the hard disks, are loaded in the memory shown in  FIG. 24 , and are executed by the CPU shown in the figure. In each computer of the computers C 1 , C 2  and C 3 , the database software is appropriately read out from the hard disks, loaded in the memory shown in the figure, and executed by the CPU shown in the figure. Further, in each or any of the computers C 1 , C 2  and C 3 , the above-mentioned executable files for executing the functions of any of the second through tenth embodiments are appropriately read out from the CD-ROM, loaded in the memory, and, the programs of the files are appropriately executed by the CPU. Thereby, the above-described various operations of any of the second through tenth embodiments are performed on the document management database stored in the hard disks. The memory is appropriately used for executing the particular processes. 
   In this case, as long as the particular computers C 1 , C 2  and C 3  perform the operations of any of the second through tenth embodiments on the respective document management databases, the operations substantially the same as those of each of the second through tenth embodiments described above are performed. Accordingly, description thereof will be omitted. 
   A case where the operations of each of the second through tenth embodiments are performed on the plurality of databases (respective databases of the computers C 1 , C 2  and C 3 ) through operations performed using the integrating document management software T 1  of the client computer C 3  will now be described. 
   Also in this case, it is assumed that, each of the computers C 1 , C 2  and C 3  has a configuration such as that shown in  FIG. 24 . Executable files for performing the functions of the above-described second through tenth embodiments are previously recorded in a CD-ROM shown in the figure (only in the computer C 3 ), the document management database (including substantial-data files, document-information management files and section-information management files) and corresponding database software are stored in hard disks of the hard disk drive shown in the figure, and the integrating document management software T 1 , and respective document management connecting programs P 1 , P 2  and P 3  are stored in the above-mentioned hard disks. 
   In the client computer C 3  shown in  FIG. 3 , the integrating document management software T 1 , and respective document management connecting programs P 1 , P 2  and P 3  are appropriately read out from the hard disks, are loaded in the memory shown in  FIG. 24 , and are executed by the CPU shown in the figure. In each computer, the database software is appropriately read out from the hard disks, loaded in the memory shown in the figure, and executed by the CPU shown in the figure. Further, in the client computer C 3 , the above-mentioned executable files for executing the functions of any of the second through tenth embodiments are appropriately read out from the CD-ROM, loaded in the memory, and, the programs of the files are appropriately executed by the CPU. Thereby, the above-described various operations of any of the second through tenth embodiments are performed on the document management databases stored the hard disks of the computers C 1 , C 2  and C 3 . The memories of the respective computers C 1 , C 2  and C 3  are appropriately used for executing the particular processes. 
   In order that the operations of each of the second through tenth embodiments are performed on the plurality of databases (respective databases of the computers C 1 , C 2  and C 3 ) through operations performed using the integrating document management software T 1  of the client computer C 3 , similar to the case of the first embodiment, the respective document management databases are accessed through the document management connecting programs P 1 , P 2  and P 3  using the integrating document management software T 1  of the client computer C 3 . In this case, the operations of any of the second through tenth embodiments are performed basically using the functions of the first embodiment as they are. Details thereof will now be described. 
   A case where the operation of the second embodiment shown in  FIG. 29  are performed will now be described. 
   First, in S 201 , in the page shown in  FIG. 4  (where documents stored in the database (‘DOCUMENT MANAGEMENT 1’) of the server computer C 1  are displayed) instead of the page shown in  FIG. 27 , an operator selects a document consisting of the plurality of sections, and operates the menu region of this page so as to instruct the system to display a ‘property of document’. It is also possible to select a desired folder of another database (for example, the database (‘DOCUMENT MANAGEMENT 2’ of the server computer C 2 ) and select a desired document therefrom. 
   The result thereof is the same as that in the case of the second embodiment. However, in this case, it is assumed that at least the information of the document list and section list shown in  FIG. 28  of the database (in the case of  FIG. 4 , the database of DOCUMENT MANAGEMENT 1, that is, the database of the serer computer C 1 ) including the documents displayed in the page of  FIG. 4  is previously obtained from the document-information management file and section-information management file of the corresponding database (or the document-information management file and section-information management file themselves are obtained) after undergoing data transformation appropriately through the relevant document management connecting program (in this case, P 1 ), loaded in the memory of the client computer C 3  and held there. 
   Then, when a change in section names is found out in S 204 , the CPU of the client computer C 3  changes the relevant section-information management file of the server computer C 1  (or the section-information management file having the contents thereof changed is returned to the server computer C 1 , and, thereby the section-information management file is updated) accordingly. Also in this case, the operations are performed as a result of set of instructions/data being appropriately transformed/translated through the document management connecting program P 1  of the client computer C 3 . 
   Then, in S 205 , the CPU of the client computer C 3  obtains information from the section-information management file of the database of the server computer C 1  through the document management connecting program P 1 , and, in accordance with the thus-obtained information, updates the information in the memory and the display on the display monitor of the client computer C 3 . 
   When the operations of the flow chart of the third embodiment shown in  FIG. 32  are performed, same as the above case, first, in S 211 , in the page shown in  FIG. 4  (where documents stored in the database (‘DOCUMENT MANAGEMENT 1’) of the server computer C 1  are displayed) instead of the page shown in  FIG. 27 , an operator selects a document consisting of the plurality of sections, and operates the menu region of this page so as to instruct the system to display a ‘property of document’. It is also possible to select a desired folder of another database (for example, the database (‘DOCUMENT MANAGEMENT 2’ of the server computer C 2 ) and select a desired document therefrom. 
   The result thereof is the same as that in the case of the third embodiment. However, in this case, it is assumed that at least the information of the document list and section list shown in  FIG. 28  of the database (in the case of  FIG. 4 , the database of DOCUMENT MANAGEMENT 1, that is, the database of the serer computer C 1 ) including the documents displayed in the page of  FIG. 4  is previously obtained from the document-information management file and section-information management file of the corresponding database (or the document-information management file and section-information management file themselves are obtained) after undergoing data transformation appropriately through the relevant document management connecting program (in this case, P 1 ), loaded in the memory of the client computer C 3  and held there. 
   Then, when a change in section names is found out in S 214 , the CPU of the client computer C 3  changes the relevant section-information management file of the server computer C 1  (or the section-information management file having the contents thereof changed is returned to the server computer C 1 , and, thereby the section-information management file is updated) accordingly. Also in this case, the operations are performed as a result of set of instructions/data being appropriately transformed through the document management connecting program P 1  of the client computer C 3 . 
   Then, in S 215 , the CPU of the client computer C 3  obtains information from the section-information management file of the database of the server computer C 1  through the document management connecting program P 1 , and, in accordance with the thus-obtained information, updates the information in the memory and the display on the display monitor of the client computer C 3 . 
   When the operations of the fourth embodiment shown in  FIG. 35  are performed, first, in S 221 , in the page shown in  FIG. 4  (where documents stored in the database (‘DOCUMENT MANAGEMENT 1’) of the server computer C 1  are displayed) instead of the page shown in  FIG. 27 , an operator selects a document consisting of the plurality of sections, and operates the menu region of this page so as to instruct the system to display a ‘property of document’. It is also possible to select a desired folder of another database (for example, the database (‘DOCUMENT MANAGEMENT 2’ of the server computer C 2 ) and select a desired document therefrom. 
   The result thereof is the same as that in the case of the fourth embodiment. However, in this case, it is assumed that at least the information of the document list and section list shown in  FIG. 28  of the database (in the case of  FIG. 4 , the database of DOCUMENT MANAGEMENT 1, that is, the database of the serer computer C 1 ) including the documents displayed in the page of  FIG. 4  is previously obtained from the document-information management file and section-information management file of the corresponding database (or the document-information management file and section-information management file themselves are obtained) after undergoing data transformation appropriately through the relevant document management connecting program in this case, P 1 ), loaded in the memory of the client computer C 3  and held there. 
   The list of types of index displayed on the display monitor of the client computer C 3  in S 222  is loaded in the memory of the client computer C 3  from the relevant document-information management file stored in the database of the server computer C 1 , and is previously registered by an operator there. 
   Then, when a change in section names is found out in S 224 , the CPU of the client computer C 3  changes the relevant section-information management file of the server computer C 1  (or the section-information management file having the contents thereof changed is returned to the server computer C 1 , and, thereby the section-information management file is updated) accordingly. Also in this case, the operations are performed as a result of set of instruction/data being appropriately transformed through the document management connecting program P 1  of the client computer C 3 . 
   Then, in S 225 , the CPU of the client computer C 3  obtains information from the section-information management file of the database of the server computer C 1  through the document management connecting program P 1 , and, in accordance with the thus-obtained information, updates the information in the memory and the display on the display monitor of the client computer C 3 . 
   When the operations of the fifth embodiment shown in  FIG. 38  are performed, as a presupposition, it is assumed that a plurality of documents are already registered in the database of the server computer C 1 , and are displayed in the page shown in  FIG. 4  after undergoing data translation through the document management connecting program P 1  on the client computer C 3 . In this state, all the information of the documents displayed is loaded in the memory of the client computer C 3 . Further, setting of ‘to change section names at a time of document coupling’ is written in a system setting information file stored in the database of the server computer C 1 , and the information of this setting is loaded in the memory of the client computer C 3  at a time of starting up of the document management system shown in  FIG. 3  (after undergoing data translation through the document management connecting program P 1 ). 
   In S 231 , an operator selects a plurality of documents from the page of  FIG. 4 , and instructs the system to perform ‘document coupling’ by operating the menu region of the page. 
   As a result, the instructions of ‘document coupling’ are given to the document management connecting program P 1  through the integrating document management software T 1 , are transformed into a set of instructions so as to be adapted for the software of the database of the server computer C 1  by the document management connecting program P 1 , the thus-obtained set of instructions is given to the server computer C 1 , and the CPU of the server computer C 1  executes a document coupling process as described above, in S 232 . In accordance with this set of instructions, the CPU of the server computer C 1  thus executes the document coupling process for the documents in the database thereof. 
   Then, in S 233 , the CPU of the client computer C 3  refers to the information concerning the setting of ‘to change section names at a time of document coupling’, and, thereby, recognizes that this setting is made. As a result, same as the case of the fifth embodiment, the CPU of the client computer C 3  creates section names of the respective sections constituting a document obtained from the plurality of document through the document coupling process in S 232  as a result of adding indexes to the document name, respectively. 
   Then, in S 234 , the CPU of the client computer C 3  transmits the thus-created section names of the respective sections to the server computer C 1  after performing data transformation thereon through the document management connecting program P 1 . The CPU of the server computer C 1  receiving them relates the thus-created section names of the respective sections to the corresponding sections, respectively, and stores them in the section-information management file stored in the database thereof. 
   Then, in S 235 , the CPU of the client computer C 3  obtains from the database of the server computer C 1  the document information which is changed through the document coupling process in S 232  through the document management connecting program P 1 , updates the display of the page on the display monitor of the client computer C 3  using this new document information. 
   When the operations of the sixth embodiment shown in  FIG. 39  are performed, as a presupposition, it is assumed that, for example, already the operations same as those corresponding to one of the above-described second, third, fourth and fifth embodiments are performed, a document consisting of a plurality of sections each having a section name consisting of a document name of the document and an index are registered in the database of the server computer C 1 , and are displayed in the page of  FIG. 4  on the display monitor of the client computer C 3 . In this state, the information of the displayed documents is loaded in the memory of the client computer C 3 . 
   First, in S 241 , an operator selects the above-mentioned document consisting of the plurality of sections from the page of  FIG. 4 , and instructs the system to perform a ‘document decomposing process’ by operating the menu region of the page. 
   As a result, the instructions of ‘document decomposing’ are given to the document management connecting program P 1  through the integrating document management software T 1 , are transformed into a set of instructions so as to be adapted for the software of the database of the server computer C 1  by the document management connecting program P 1 , the thus-obtained set of instructions is given to the server computer C 1 , and the CPU of the server computer C 1  executes a document decomposing process as described above, in S 242 . In accordance with this set of instructions, the CPU of the server computer C 1  thus executes the document decomposing process for the document in the database thereof. 
   In S 243 , the process the same as that of the sixth embodiment is executed by the client computer C 3 . 
   Then, in S 244 , the CPU of the client computer C 3  transmits the thus-created document names of the respective documents to the server computer C 1  after performing data transformation thereon through the document management connecting program P 1 . The CPU of the server computer C 1  receiving them relates the thus-created document names of the respective documents to the corresponding sections, respectively, and stores them in the section-information management file stored in the database thereof. 
   Then, in S 245 , the CPU of the client computer C 3  obtains from the database of the server computer C 1  the document information which is changed through the document coupling process in S 244  through the document management connecting program P 1 , updates the display of the page on the display monitor of the client computer C 3  using this new document information. 
   When the operations of the sixth embodiment shown in  FIG. 40  are performed, as a presupposition, it is assumed that, first, as a presupposition, it is assumed that, as a result of the operations same as those corresponding to the above-described sixth embodiment being performed, a document consisting of a plurality of sections each having a section name created using the document name of the document and an index is decomposed into documents each consisting of a respective one of those sections, the document names of these documents obtained through the decomposition are caused to be the same as those of the section names of the respective sections, and those documents are registered in the database of the server computer C 1 . 
   First, in S 251 , an operator instructs the system to perform ‘search’ by operating the menu region of the page shown in  FIG. 4 . 
   The operations in S 252 , S 253  and S 255  are performed same as those in the case of the seventh embodiment. 
   The search process executed in S 254  by the CPU of the client computer C 3  will now be described making reference to  FIG. 43 . 
   First, in S 261 , the CPU of the client computer C 3  loads the relevant document-information management file stored in the database of the server computer C 1  into the memory of the client computer C 3  after performing data transformation thereon through the document management connecting program P 1  appropriately, and sets a pointer at the first document name in the file. 
   The operations of S 262 , S 263 , S 264 , S 265  and S 266  are the same as those in the case of the seventh embodiment. 
   As a result of the loop of S 262 , S 263 , S 264 , S 265  and S 266  being repeated, all the document names in the document-information management file are checked, document names each consisting of a combination of the character string of the space of ‘DOCUMENT NAME’ of the search dialog box and an index in the type of the space of ‘INDEX TYPE’ of the search dialog box are stored in the memory of the client computer C 3  as elements of the list of search results, and, thus, the list of search results is produced. 
   When the operations of the eighth embodiment shown in  FIG. 44  are performed, first, same as in the case corresponding to the above-described seventh embodiment, as a presupposition, it is assumed that, as a result of the operations same as those corresponding to the above-described sixth embodiment being performed, a document consisting of a plurality of sections each having a section name created using the document name of the document and an index is decomposed into documents each consisting of a respective one of those sections, the document names of these documents obtained through the decomposition are caused to be the same as those of the section names of the respective sections, and those documents are registered in the database of the server computer C 1 . In this case, it is also assumed that those document names are displayed in the page of  FIG. 4  on the display monitor of the client computer C 3 , and all the information of the displayed documents is loaded in the memory of the client computer C 3 . 
   First, in S 271 , an operator selects (through a mouse click) a document (for example, ‘PATENT-1’) from the page shown in  FIG. 4 , and instructs the system to perform ‘search’ by operating the menu region. 
   The operations of S 272 , S 273 , S 274 , S 275  and S 275  are performed same as those in the case of the eight embodiment by the client computer C 3 . 
   When the operations of the ninth embodiment shown in  FIG. 47  are performed, first, as a presupposition, it is assumed that the dialog box of a list of document search results shown in  FIG. 48  is displayed on the display monitor of the client computer C 3  as a result of the function corresponding to the seventh or eighth embodiment being executed. Further, it is assumed that the document information displayed there is loaded in the memory of the client computer C 3 . 
   The operations of S 281  and S 282  are performed same as those in the case of the ninth embodiment by the client computer C 3 . 
   The document coupling process performed in S 83  is the same as that described above. 
   Then, the CPU of the client computer C 3  obtains the document information from the document-information management file changed as a result of S 283  from the database of the server computer C 1  through the document management connecting program P 1 , and updates the display on the display monitor of the client computer C 3  in accordance with the thus-obtained document information. 
   When the operations of the tenth embodiment shown in  FIG. 49  are performed, as a presupposition, it is assumed that the dialog box of a list of document search results shown in  FIG. 50  is displayed on the display monitor of the client computer C 3  as a result of the function corresponding to the seventh or eighth embodiment being executed. 
   First, in S 291 , an operator pushes (through a mouse  104  click) the button ‘COUPLE’ of the dialog box of the list of document search results displayed on the display monitor  102 . 
   As a result, the CPU of the client computer C 3  couples together the documents listed in the document list displayed in the dialog box of the list of document search results in S 292  (see the above description of the document coupling process). 
   The operations in S 293  are the same as those of the tenth embodiment. 
   In S 294 , the CPU of the client computer C 3  transmits the thus-created document names obtained in S 293  to the server computer C 1  after performing data transformation thereon through the document management connecting program P 1 . The CPU of the server computer C 1  receiving them relates the thus-created document names to the corresponding sections, respectively, and stores them in the document-information management file stored in the database thereof. 
   In S 295 , the client computer C 3  obtains the document information from the document-information management file changed as a result of S 294  through the document management connecting program P 1 , and updates the display on the display monitor of the client computer C 3  in accordance with the thus-obtained document information, and finishes this process. 
   The cases (embodiments) where the second through tenth embodiments are applied to the system environment shown in  FIG. 3  have been described. However, also in such a case, it is possible to appropriately combine the functions of the second through tenth embodiments. 
   Thus, as a result of applying the present invention in an aspect corresponding to any of the second through tenth embodiments to a distributed database environment such as that shown in  FIG. 3 , it is possible to improve convenientity in various sorts of document management in such an environment. 
   In a system such as that shown in  FIG. 3 , the present invention in an aspect corresponding to any of the second through tenth embodiments may be applied to a case where documents are coupled together or a document is decomposed through a plurality of databases. 
   In this case, a document coupling process is executed as a result of, through the functions of the document management connecting programs of the first embodiment of the present invention, documents being moved from a first database to a second database, and being coupled to other documents in the second database. Further, a document decomposing process is executed as a result of a document being decomposed in a first database, and any of the documents obtained from the decomposition being moved to a second database through the functions of the document management connecting programs of the first embodiment of the present invention. 
   Further, in such a case, document information and section information of each database needed for producing/changing document names/section names may be obtained as a result of document-information management files and section-information management files of each database being obtained through the functions of the document management connecting programs of the first embodiment of the present invention, and loaded in the memory of a client computer. 
   Further, for document search such as that described using  FIG. 43 , the document-information management files of each database thus loaded in the memory of the client computer may be used. 
   The present invention in an aspect corresponding to any of the second through tenth embodiments may be applied not only to a case where document-information management files, section-information management files and system setting information files are stored in each database, but also to a case where they are stored in a storage device (such as hard disks of a hard disk drive) of a client computer collectively. 
   In such a case, each time document names/section names registered in document-information management files/section-information management files are changed, communication may be made with the respective databases throuhg the above-mentioned functions of the document management connecting programs, and the document information/section information of the respective databases may be updated appropriately. 
   Further, the present invention in an aspect corresponding to any of the second through tenth embodiments may be applied not only to the example of system configuration shown in  FIG. 3 , but also to a system in which documents stored in respective ones of a plurality of databases connected through other various networks, or connected through other methods are managed collectively, a system in which documents stored in a single database connected through a network are managed, and so forth. 
   The present invention is not limited to the above-described embodiments, and variations and modifications may be made without departing from the scope of the present invention. 
   The present application is based on Japanese priority application Nos. 11-224015 and 11-353718, filed on Aug. 6, 1999 and Dec. 13, 1999, the entire contents of which are hereby incorporated by reference.