JP4914821B2 - File management method and file management apparatus for electronic tally processing - Google Patents

Description

  The present invention relates to a file management method, a file management apparatus, and a portable storage medium associated with electronic tally processing, and more specifically to a file management technique associated with tally processing of electronic data and restoration processing based on tally pieces.

With increasing awareness and needs for information security, electronic tally technology has been proposed. As such an electronic tally technique, for example, a codeword file and predetermined K elements are provided under the problem of providing an electronic tally generation method for easily generating highly reliable and highly reliable electronic tally. Prepare a file, a predetermined M number of tally files, a plaintext file storing plaintext, and an element allocation table on a computer memory, read the plaintext from the plaintext file, compress and code, and erase the redundant bit pattern Generated and stored in the codeword file, read out the codeword, divided into K elements, stored in the K element files for each element, and read out each element to read M elements based on random numbers. Allocate and store in one of the tally files, and record the allocation method in the element allocation table. The element allocation table is read out, divided into M pieces, added to the tally file as a closed header, and the arrangement list of the divided pieces of the element allocation table distributed to the closed header for each tally file is used as the open header. In addition, an electronic tally generation method (see Patent Document 1) that generates an electronic tally in the tally file has been proposed.
JP 2004-53969 A

  However, these conventional electronic tally technologies do not provide automatic tally processing or restoration processing for files to be processed, and users find the necessary timing for specifying the file and processing details and specify them one by one. There was a need to do. In addition, no technology has been proposed that considers the file management aspect of tally fragments generated by tally processing, and the tally fragment file is maintained under good usability after ensuring good security and certainty of file restoration. There has been a demand for a technology that enables various file management such as moving and updating files.

  Therefore, the present invention has been made in view of the above problems, and aims to provide efficient and reliable execution such as tally processing and restoration processing, and to provide a file management technique with excellent usability associated with electronic tally processing. To do.

A file management method associated with electronic tally processing of the present invention that solves the above problems is a file management method associated with tally processing of electronic data and restoration processing based on tally fragments, and is readable by a computer and the computer. In the portable storage medium, the hierarchical structure and the hierarchical names are the same in each storage device, and the electronic data to be tallyed is located in the predetermined storage structure in the storage device of the computer. As information , the information of each hierarchical name in the hierarchical structure from the highest hierarchy to the hierarchy in which the original electronic data is stored is stored in the respective storage devices of the computer and the portable storage medium , The predetermined hierarchical structure is monitored based on the information of the predetermined hierarchical structure stored in the storage device, and located in the predetermined hierarchical structure Detect child data, execute a folder monitoring process and a tally process for the electronic data detected in the predetermined hierarchical structure to generate a tally piece set, and one tally piece constituting the tally piece set is storing said in hierarchical serving area a electronic data is located in a given hierarchical structure, the other tally pieces in the predetermined hierarchical structure formed during storage of the portable storage medium connected to the interface, said region a Read the original electronic data name information as the electronic data information that is the original of the tally piece from the tally processing stored in the hierarchy of the same hierarchy name as the corresponding hierarchy and the tally piece existing in the predetermined hierarchical structure. Te, and displays the information of the original electronic data name in the predetermined hierarchical structure information together with the output interface, the original display process, electronic data recovery Upon performing management reads the one tally pieces were stored in its own storage device, in the hierarchy of the same hierarchical name as layer corresponding to the region A in which the one of the tally piece was stored, the original A search for the other tally piece using the electronic data name as a key is executed in the predetermined hierarchical structure of the portable storage medium connected to the interface, and the other tally piece and the one tally specified by the search are performed. A restoration process is performed, in which the restoration process of the electronic data is executed using a piece.

  The portable storage medium includes not only a very small storage medium such as a USB memory but also a hard disk drive that can be detached from a computer interface. Alternatively, it may be a storage device built into the computer even if it is not portable.

Further, in the file management method associated with the electronic tally processing, the computer or the portable storage medium is a computer or a portable storage medium of the area A where the electronic data is located and the tally pieces generated from the electronic data. An index file describing a correspondence relationship with a storage destination, and the tally processing includes storing one tally piece constituting the tally piece set in a storage device of the computer defined in the index file. The other tally piece is stored in a storage destination in the storage device of the portable storage medium defined in the index file, and the original display processing is performed by determining the tally piece storage location and the storage location of the tally piece. Information on the area A in the predetermined hierarchical structure corresponding to the storage destination is specified from the index file, and the specified case is identified. Than the previous tally piece, reads the information of the original electronic data name as information of the electronic data serving as the original of the tally pieces, displayed in the output interface information of the original electronic data name with information of the area A of the predetermined hierarchy The restoration process reads the one tally piece stored in its own storage device based on the index file when performing the restoration process of electronic data, and the one tally piece and the tally piece A search for the other tally piece constituting the set is executed in the portable storage medium based on the index file, and the other tally piece and the one tally piece specified by the search are used to execute the search. The electronic data may be restored.

In the file management method associated with the electronic tally processing, the index file is set such that the file name of the tally piece associated with the area A where the electronic data is located is different from the file name of the electronic data. In the tally processing, when the tally piece processing is performed on the electronic data to generate the tally piece set, the one tally piece and the other tally piece constituting the tally piece set are A name different from the file name of the data may be generated by a random number and set as a file name of a tally piece associated with the corresponding electronic data in the index file.

  Further, in the file management method associated with the electronic tally processing, the computer receives the use instruction of the corresponding electronic data in an output interface for displaying information of the original electronic data, executes the restoration process, and responds to the use instruction The end event of the activated application may be monitored, and the tally process of the electronic data restored by the restoration process may be executed upon detection of the end event.

  In the file management method associated with the electronic tally processing, the tally processing and restoration processing are executed by a tally / restoration library read from the portable storage medium connected to the computer interface. It is good. Note that the portable storage medium includes an original display processing interface (programs and data) in addition to such a tally / restoration library.

In the file management method associated with the electronic tally processing, the portable storage medium includes an authentication program and the tally / restoration library in its own storage device, and is connected to the computer interface. The authentication program is activated to execute password authentication processing, and when password authentication is successful, the tally / restoration library is read from a storage device and provided to the tally processing or restoration processing in the computer. Library providing processing may be executed.

Further, in the file management method associated with the electronic tally processing, the original display processing is performed in a predetermined hierarchical structure of both the storage device of the computer and the storage device of the portable storage medium connected to the interface of the computer. Only the tally pieces constituting the set of two tally pieces generated from one original electronic data that exist in the same hierarchy name and whose names of the original electronic data are identical to each other, are the original electrons of the tally pieces. Information of the original electronic data name may be read as data information , and the original electronic data information may be displayed on the output interface together with the information of the predetermined hierarchical structure.

  Further, in the file management method associated with the electronic tally processing, the computer accepts an update instruction from the input interface for original electronic data information in a certain area in a predetermined hierarchical structure displayed on the output interface. If the tally piece corresponding to the original electronic data is updated, the tally piece and the other tally piece constituting the tally piece set are also updated in the portable storage medium connected to the interface. Data update processing may be executed to execute processing.

Further, in the file management method with the electronic tally processing, the update instruction is against the original electronic data information, and move or copy instructions to other regions in the predetermined hierarchical structure, and delete instruction, rename The data update process may be executed in accordance with the update instruction.

Further, in the file management method with the electronic tally processing, in the data updating process, the update instruction is against the original electronic data information, if the a movement instruction to other areas in a given hierarchical structure, wherein A set of tally pieces corresponding to the original electronic data may be searched in the storage device, and if the corresponding set cannot be searched, the update process according to the movement instruction may not be executed.

Further, in the file management method with the electronic tally processing, in the data updating process, the update instruction is against the original electronic data information, if the a movement instruction to other areas in a given hierarchical structure, wherein A set of tally pieces corresponding to the original electronic data is searched in the storage device, and if the corresponding set cannot be searched, a warning message may be displayed on the output interface.

  In the file management method associated with the electronic tally processing, in the restoration processing, when restoring the original electronic data using the other tally piece and the one tally piece, the file name of the electronic data being restored Alternatively, an attribute such as an extension may be set to be different from the corresponding attribute of the original electronic data, and the attribute may be changed to the same attribute as that of the original electronic data after the restoration process is completed.

  Further, in the restoration process in the file management method associated with the electronic tally process, prior to restoring the original electronic data using the other tally piece and the one tally piece, the other tally piece and the Searching whether the original electronic data restored by one tally piece already exists in the storage device of the computer or portable storage medium, and starting the restoration process only when the corresponding original electronic data does not exist, Also good.

The file management apparatus of the present invention is a computer that performs file management associated with electronic data tally processing and tally fragment restoration processing, and is readable by a computer-readable portable storage medium, hierarchical configuration, This is a storage device having the same hierarchical structure as the hierarchical name, and the original electronic data is stored from the highest layer as information of a predetermined hierarchical structure in the storage device of the computer where the electronic data to be tallyed is located. Based on the information of the predetermined hierarchical structure stored in the storage device, the storage device storing the information of each hierarchical name in the hierarchical structure leading to the hierarchical level , the arithmetic device, the interface for connection to the portable storage medium, and the storage device Monitoring the predetermined hierarchical structure and detecting electronic data located in the predetermined hierarchical structure, and detecting in the predetermined hierarchical structure It was running tally process for the electronic data to generate tally piece set, store one of the tally pieces constituting the tally piece set in the predetermined hierarchical structure in the electronic data is located hierarchy serving areas A, A tally unit that stores the other tally piece in a hierarchy having the same hierarchy name as the hierarchy corresponding to the area A in the predetermined hierarchical structure generated in the storage device of the portable storage medium connected to the interface; From the tally pieces existing in the predetermined hierarchical structure, information on the original electronic data name is read as electronic data information that is the original of the tally piece, and the original electronic data name information is output together with the information on the predetermined hierarchical structure. Read the original tally piece stored in its own storage device when performing restoration processing of the original data display section and electronic data displayed on the interface The in which the one tally pieces in the hierarchy of the same hierarchical name as corresponding hierarchy to the region A that was stored, the search tally piece of the other that a key to the original electronic data name, and connected to the interface A restoration unit that executes in the predetermined hierarchical structure of the portable storage medium and executes the restoration process of the electronic data by using the other tally piece and the one tally piece specified by the search.

  In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the embodiments of the present invention and the drawings.

  According to the present invention, efficient and reliable execution such as tally processing and restoration processing can be performed, and a file management technique with excellent usability associated with electronic tally processing can be provided.

--- System configuration ---
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of a file management system 10 associated with electronic tally processing in the present embodiment. A file management system 10 associated with electronic tally processing in the present embodiment (hereinafter, system 10) includes a file management device 100 that performs file management associated with tally processing of electronic data and restoration processing based on tally pieces, and the file management device. 100 is a system including a portable storage 200 that cooperates with 100.

  The file management device 100 constituting the system 10 reads out the program 102 stored in the storage device 101 such as a nonvolatile memory to the memory 103 in order to realize the function of executing the file management method associated with the electronic tally processing, It is executed by the CPU 104 as an arithmetic unit. In addition, the file management apparatus 100 is a medium interface responsible for communication with various buttons generally provided in a computer apparatus, an input interface 105 such as a keyboard, an output interface 106 such as an LED or a display, and a portable storage medium 200. 107 and the like.

  Subsequently, functional units that are configured and held by the file management apparatus 100 configuring the system 10 based on the program 102 will be described. As described above, each functional unit may be provided integrally in one computer, or may be distributed and arranged in the file management apparatus 100 and the portable storage medium 200 so as to cooperate with each other. The file management device 100 and the portable storage medium 200 store information 130 of a predetermined hierarchical structure in the storage device 101 of the file management device 100 in which electronic data to be tallyed is located in each storage device. Storing.

  The file management apparatus 100 monitors the predetermined hierarchical structure based on the information 130 of the predetermined hierarchical structure stored in the storage device 101, and detects electronic data located in the predetermined hierarchical structure. Is provided.

  The file management apparatus 100 generates a tally piece set by performing tally processing on the electronic data detected in the predetermined hierarchical structure, and sets one tally piece constituting the tally piece set to the predetermined hierarchy. In the structure, the electronic data is stored in the area A, and the other tally piece corresponds to the area A in the predetermined hierarchical structure generated in the storage device 201 of the portable storage medium 200 connected to the medium interface 107. The tally conversion unit 111 is provided to store in the area to be processed.

  Further, the file management apparatus 100 reads out information on the electronic data that is the original of the tally piece from the tally pieces existing in the predetermined hierarchical structure, and uses the information on the original electronic data as the information 130 on the predetermined hierarchical structure. In addition, an original display unit 112 for displaying on the output interface 106 is provided. The original display unit 112 is in a predetermined hierarchical structure of both the storage device 101 of the file management device 100 and the storage device 201 of the portable storage medium 200 connected to the medium interface 107 of the file management device 100. For the tally pieces that are present in the same region and constitute a tally piece set, the electronic data information that is the original of the tally piece is read out, and the original electronic data information is output together with the information 130 of the predetermined hierarchical structure. It may be displayed on the interface 106.

  In addition, the file management apparatus 100 reads the one tally piece stored in its own storage device 101 when performing the restoration process of the electronic data, and reads the one tally piece into the area A where the one tally piece is stored. The search for the other tally piece in the corresponding area is executed in the predetermined hierarchical structure of the portable storage medium 200 connected to the medium interface 107, and the other tally piece and the one tally specified by the search are performed. A restoration unit 113 is provided that performs restoration processing of the electronic data using a piece. Note that when the original electronic data is restored using the other tally piece and the one tally piece, the restoration unit 113 assigns an attribute such as a file name or an extension of the electronic data being restored to the original electronic data. It is preferable to set the attribute different from the corresponding attribute of the data and change the attribute to the same attribute as the original electronic data after the restoration process is completed. In addition, the restoration unit 113 restores the original electronic data using the other tally piece and the one tally piece, and the original restored by the other tally piece and the one tally piece. It is preferable to search whether the electronic data already exists in the storage device of the file management device 100 or the portable storage medium 200 and start the restoration process only when the corresponding original electronic data does not exist.

  In addition, the file management apparatus 100 or the portable storage medium 200 includes the area A where the electronic data is located and the storage location of the tally pieces generated from the electronic data in the file management apparatus 100 or the portable storage medium 200. It is possible to provide an index file 125 in which the correspondence relationship is described.

  In this case, the tally generating unit 111 selects one tally piece constituting the tally piece set as a storage destination (a tally in the storage device 101) in the storage device 101 of the file management device 100 defined in the index file 125. A storage area is prepared as a single storage unit 126), and the other tally piece is stored in the storage device 201 of the portable storage medium 200 defined in the index file 125 (tally fragment storage in the storage device 201). A storage area is prepared as the unit 216). In addition, the original display unit 112 identifies the storage location of the tally fragment and the information of the area A in the predetermined hierarchical structure corresponding to the storage location from the index file 125, and from the tally fragment of the identified storage location, The information of the electronic data that is the original of the tally piece is read out, and the information of the original electronic data is displayed on the output interface 106 together with the information of the area A of the predetermined hierarchical structure. Further, when performing restoration processing of electronic data, the restoration unit 113 reads out the one tally piece stored in its own storage device 101 based on the index file 125, and the one tally piece and tally piece. The search for the other tally piece constituting the set is executed in the portable storage medium 200 based on the index file 125, and the other tally piece and the one tally piece specified by the search are used. Thus, the electronic data restoration process is executed.

  The index file 125 is suitable if the file name of the tally piece associated with the area A where the electronic data is located is set to be different from the file name of the electronic data. In this case, when the tally generating unit 111 generates a tally piece set by performing tally processing on the electronic data, the electronic tally piece and the other tally piece constituting the tally piece set are converted into the electronic tally pieces. A name different from the file name of the data is generated according to a predetermined standard (such as selection of characters constituting the file name with random numbers), and set in the index file 125 as the file name of the tally piece associated with the corresponding electronic data.

  In addition, the tally unit 111 performs tally processing on the index file 125 to generate an index file tally piece set, and one tally piece constituting the index file tally piece set is generated in the predetermined hierarchical structure. An area corresponding to the area A in the predetermined hierarchical structure generated in the storage device 201 of the portable storage medium 200 connected to the medium interface 107 and storing the other tally piece in the area A where the electronic data is located You may store in. In this case, the restoration unit 113 reads one tally piece of the index file tally piece set stored in its own storage device 101 prior to performing the restoration process of the electronic data, and the one tally piece is The search of the other tally piece in the area corresponding to the stored area A is executed in the predetermined hierarchical structure of the portable storage medium 200 connected to the medium interface 107, and the index specified by the search The restoration processing of the index file 125 is executed using the other tally piece of the file tally piece set and the one tally piece.

  The restoration unit 113 of the file management apparatus 100 receives the instruction to use the corresponding electronic data in the output interface 106 that displays the information of the original electronic data, and executes the restoration process. An end event of the application started in response to the use instruction may be monitored, and the tally processing of the electronic data restored by the restoration processing may be executed upon detection of the end event.

  The tally encoding unit 111 and the restoring unit 113 execute tally processing and restoration processing by the tally / restoration library 211 read from the portable storage medium 200 connected to the medium interface 107 of the file management apparatus 100. You can do it.

  Further, when the file management apparatus 100 receives an update instruction from the input interface 105 for the information of the original electronic data in a certain area in the predetermined hierarchical structure displayed on the output interface 106, the file management apparatus 100 The tally piece corresponding to the electronic data is updated, and the tally piece and the other tally piece constituting the tally piece set are also executed in the portable storage medium 200 connected to the medium interface 107. The data updating unit 114 may be provided.

  When the data updating unit 114 of the file management apparatus 100 receives an update instruction for the index file 125 from the input interface, one tally piece constituting an index file tally piece set corresponding to the index file 125 is obtained. The update process is also executed on the portable storage medium 200 connected to the medium interface 107 with respect to the one tally piece and the other tally piece constituting the index file tally piece set.

  In addition, the update instruction includes any of an instruction to move or copy to the other area in the predetermined hierarchical structure, an instruction to delete, or a name change for the original electronic data information or the index file 125. Also good. In this case, the data update unit 114 executes processing according to the update instruction.

  In addition, the data update unit 114, when the update instruction is an instruction to move to another area in the predetermined hierarchical structure with respect to the information of the original electronic data or the index file 125, the original electronic data or the index file 125. Is searched in the storage device (storage device of the file management device 100 and the portable storage medium 200), and if the corresponding tally piece set cannot be searched, the update process according to the movement instruction is executed. If not, it is preferable.

  In addition, the data update unit 114, when the update instruction is an instruction to move to another area in the predetermined hierarchical structure with respect to the information of the original electronic data or the index file 125, the original electronic data or the index file 125. If the tally piece set corresponding to is searched in the storage device (the storage device of the file management device 100 and the portable storage medium 200) and if the corresponding tally piece set cannot be searched, a warning message is displayed on the output interface 106. Is preferred.

  Next, a portable storage medium 200 that constitutes the system 10 together with the file management apparatus 100 will be described. The portable storage medium 200 performs file management associated with electronic data tally processing and restoration processing based on tally pieces in cooperation with the file management apparatus 100. For example, a USB memory or an external hard disk is used. A drive can be assumed. This portable storage medium 200 includes information 130 having a predetermined hierarchical structure in the storage device 101 of the file management device 100, the authentication program 210, and the file management device 100 where the electronic data to be subjected to tally processing is located. A storage device 201 that stores a tally / restoration library 211 executed in the tally processing and restoration processing, an arithmetic unit 204, and an interface 207 for connection to the file management device 100.

  In addition, the portable storage medium 200 includes a library providing unit 212 as a functional unit configured and held based on the program 202 stored in the storage device 201, for example. When the library providing unit 212 is connected to the medium interface 107 of the file management apparatus 100, the library providing unit 212 activates the authentication program 210 to execute a predetermined authentication process, and when the authentication process is successful, the tally It is means for reading the conversion / restoration library 211 from the storage device 201 and providing it to the tally processing of electronic data or the restoration processing based on tally pieces in the file management apparatus 100.

  Regarding the data and functions that the portable storage medium 200 includes, the file management apparatus 100 may include only the file management apparatus 100 and execute the file management method associated with the electronic tally processing of the present invention. In this case, one tally piece constituting the tally piece set is stored in, for example, the area A in the storage device 101 of the file management apparatus 100, and the other tally piece is stored in the other area B in the storage device 101. Assuming that

  In the present embodiment, it is assumed that the file management apparatus 100 is installed with a folder monitoring program that realizes the folder monitoring unit 110. This folder monitoring program resides in the task tray from startup in the OS of the file management apparatus 100, and executes folder monitoring as the folder monitoring unit 110.

  In addition, the portable storage medium 200 preferably stores key information, a program, and tally pieces in an area protected by password authentication or the like in the storage device 201. When the portable storage medium 200 is inserted into the medium interface 107 of the file management apparatus 100 by the auto-run function of the portable storage medium 200, the electronic tally client 220 is automatically read and read by the file management apparatus 100. It is a program to be started. Then, for the file (original electronic data) detected by the folder monitoring program in a predetermined monitoring area, the tally engine (tally / restoration library) 221 is called from the portable storage medium 200 to perform tally processing or the tally processing. The restoration process using the tally piece set generated in step 1 is executed. The file management apparatus 100 includes all or part of the programs and data included in the portable storage medium 200 such as the electronic tally client 220 and the tally engine (tally / restoration library) 221, and the functions of the portable storage medium 200. May be substituted. The electronic tally client 220 implements the functions of the tally conversion unit 111, the original display unit 112, the restoration unit 113, and the data update unit 114. Similarly, the folder monitoring program implements the folder monitoring unit 110.

  The function units 110 to 114 and 210 to 212 in the file management apparatus 100 and the portable storage medium 200 that constitute the system 10 described so far may be realized as hardware, a memory, an HDD (Hard Disk Drive), or the like. ) And the like may be realized as a program stored in an appropriate storage device. In this case, each CPU of the file management device 100 and the portable storage medium 200 constituting the system 10 reads the corresponding program from each storage device to each memory in accordance with the program execution, and executes it.

--- Example of table structure ---
Next, the structure of a table used by the file management apparatus 100 and the portable storage medium 200 in this embodiment will be described. FIG. 2 is a diagram showing an example of the data structure of (a) information 130 having a predetermined hierarchical structure and (b) the index file 125.

  Each of the file management device 100 and the portable storage medium 200 includes information 130 having a predetermined hierarchical structure in the storage device 101 of the file management device 100 where the electronic data to be tallyed is located. That is, the information 130 having the predetermined hierarchical structure is the same in the file management apparatus 100 and the portable storage medium 200. As shown in FIG. 2A, the predetermined hierarchical structure information 130 includes, for example, the name of the highest hierarchy in the tally processing target area and the name of the second hierarchy below the highest hierarchy using the user ID as a key. Further, the data describes a hierarchical series of folders in a tree structure configured in a storage device such as a name of a third hierarchy lower than the second hierarchy. The predetermined hierarchical structure information 130 is set by the administrator of the file management apparatus 100 by specifying it from the input interface 105 in advance. When there are a plurality of users who use the file management apparatus 100, it may be set for each user as in this embodiment.

  In addition, as shown in FIG. 4B, the index file 125 is stored in the area A where the original electronic data is located in the file management apparatus 100 or the portable storage medium 200 (eg, a hierarchy on the predetermined hierarchical structure). A folder name including a position) and a storage destination of a tally piece generated from the electronic data in the file management apparatus 100 or the portable storage medium 200 (eg, a folder name including a hierarchical position on the predetermined hierarchical structure). , Which is different from the predetermined area A). In the example shown in the figure, the file name of the original electronic data is “memo.txt”, but the file name of the first tally piece (“one tally piece” in the claims) is “wxyz.txt0.wf”. The file name of the second tally piece (“the other tally piece” in the claims) is “stuvw.txt1.wf”. The hierarchy in which the first and second tally pieces are stored is not “\\ user 01 \ work \ folder 1” as the area A, but the first tally piece is “\\ user 01 \ work \”. “5”, and the second tally piece is “\\ user 01 \ work \ folder 3”. That is, tally pieces with different names are stored in an area different from the area A where the original electronic data is located. In this way, by making the original and the tally pieces different from each other in terms of name and location, a malicious third party, etc., infers the combination of tally pieces from the name and location of the tally pieces and generates the original. This can be suppressed.

--- Examples of processing policies and rules ---
Subsequently, when the file management apparatus 100 and the portable storage medium 200 execute the file management method associated with the electronic tally process in this embodiment, an example is given of a policy that becomes a reference in each processing procedure. As a policy when the electronic tally client 220 activated from the portable storage medium 200 executes processing, (1) either the original electronic data or the tally piece is always present, and (2) the processing target folder has If both the original electronic data and tally pieces remain, the original electronic data is set to “correct” (the original electronic data in the processing target folder is not overwritten or deleted at a timing other than the tally processing) ), (3) that the portable storage medium 200 is logged in, and (4) when searching for the original electronic data, “original” refers to a non-encoded file stored in the processing target folder (an encoded file) The file includes a tally strip exclusion extension (file with a prefix), a system file, a zero-byte file, etc., specified in advance by the user).

  The rules when the electronic tally client 220 executes tally processing in the file management apparatus 100 are as follows: (1) Target file check (files other than tally pieces, exclusion extensions, system files, and 0 byte files? ), (2) OPEN check (confirms whether the file is currently opened), (3) File not open is not tallyed, (4) File not open is tallyed (when tallyed) (5) The original electronic data is deleted after tallying (if the tally fragment is saved normally, the original electronic data is deleted. If there is an event, etc. If it is interrupted and cannot be deleted, the original electronic data is not deleted and is deleted after the next tallying process).

  Further, the rules when the electronic tally client 220 executes the restoration process in the file management apparatus 100 are as follows: (1) If the original electronic data does not exist in the processing target folder, (2) The original in the processing target folder If electronic data exists, it is not restored (because a warning message is displayed ← because tally processing / restoration processing is not performed at the same time), and (3) tally fragments are not deleted after restoration processing of original electronic data.

--- Processing flow example 1 ---
Hereinafter, the actual procedure of the file management method associated with the electronic tally process in the present embodiment will be described with reference to the drawings. Note that various operations corresponding to the file management method associated with the electronic tally processing described below are realized by programs that are read into the memory and executed by the file management apparatus 100 and the portable storage medium 200 constituting the system 10. . And this program is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.

  FIG. 3 is a flowchart showing a processing procedure example 1 of the file management method associated with the electronic tally processing of the present embodiment, and FIG. 4 is a diagram showing an outline of processing at the time of tally processing. First, it is assumed that the portable storage medium 200 is connected to the medium interface 107 of the file management apparatus 100. At this time, the electronic tally client 220 is read by the file management apparatus 100 and automatically started by the auto-run function of the portable storage medium 200 (s100). Also, the folder monitoring program 110 detects that the portable storage medium 200 is connected and starts up (s101). It is preferable that the folder monitoring program 110 is installed in the file management apparatus 100 and is activated simultaneously with the activation of the file management apparatus. When such programs are started and processes are executed, determination processing based on the above-described policies and rules is performed by the file management apparatus 100 or the portable storage medium 200.

  The folder monitoring program 110 (folder monitoring unit 110) monitors the processing target folder based on predetermined hierarchical structure information 130 (tree structure information including the processing target folder) stored in the storage device 101. The original electronic data located in the processing target folder is searched (s102). In the example of FIG. 4, the original electronic data “change history.abc”, “proposal.txt”, “memo.txt” is searched in the processing target folder “user 01 \ work \ folder 1”. . These original electronic data are created by the file management apparatus 100, for example, and are previously displayed in the output screen of the electronic tally client 220 from the output interface 5 of the file search program according to an instruction from the operator. It can be assumed that it was dropped. It can also be assumed that the folder monitoring program uses a different software to drop the area to be monitored.

  If the original electronic data is detected in the processing target folder, the electronic tally client 220 (tally generating unit 111) checks whether or not the corresponding original electronic data is open. The process is started (s103). It is assumed that the electronic tally client 220 reads the tally / restoration library 211 from the portable storage medium 200 for the tally processing. Further, the number of original electronic data may be acquired and a processing status progress dialog may be displayed on the output screen of the electronic tally client 220.

  In this way, the electronic tally client 220 performs tally processing on the original electronic data detected in the processing target folder (may be a single folder or a group of folders existing across multiple hierarchies). To generate a tally piece set (s104). It is assumed that the ratio between the first tally piece and the second tally piece constituting the tally piece set is the minimum division (first tally piece: second tally piece = 99: 1) (of course, as necessary. The division ratio may be changed, and may be in accordance with the ratio between the free area of the storage device of the portable storage medium 200 and the free area of the storage device of the file management apparatus 100).

  The electronic tally client 220 stores the first tally piece (one tally piece) constituting the tally piece set in an area A (single processing target folder) where the original electronic data is located in the predetermined hierarchical structure. (S105). Further, the second tally piece (the other tally piece) constituting the tally piece set is generated in the storage device 201 of the portable storage medium 200 with a predetermined hierarchical structure (the same structure as the hierarchical structure in the file management device 100). In the area corresponding to the area A (s106). Thus, after the electronic tally client 220 confirms that the tally processing of the original electronic data has been successful and each tally piece has been stored in the file management apparatus 100 and the portable storage medium 200, the original of the area A The electronic data is deleted (s107).

  As shown in the example of FIG. 5, the name of the generated tally piece is the second tally piece (portable storage medium side): “original electronic data name (... Txt)” + “0” + “ .wf "=" .... txt0.wf ", first tally fragment (file management device side):" original electronic data name (.... txt) "+" 1 "+" .wf "="・ ・ .Txt1.wf ”. This name setting standard is provided in the data set of the electronic tally client 220, and is appropriately read and used during tally processing. The file attribute of each tally piece thus set is a hidden file attribute and cannot be referenced by the user.

  On the other hand, the electronic tally client 220 (original display unit 112) reads out electronic data information that is the original of the tally piece from the tally pieces existing in the predetermined hierarchical structure, and uses the original electronic data information as the original electronic data information. The information is displayed on the output interface 106 together with the information 130 of the predetermined hierarchical structure (s108). For example, as shown in the example of FIG. 6, the first tally piece generated by tallying the original electronic data “Proposal.txt” is in the file management apparatus 100, and the second tally piece is the portable storage medium. Suppose that it is stored in 200.

  When the electronic tally client 220 is activated, the electronic tally client 220 executes a search in the processing target folder “folder 1” in the storage device of the portable storage medium 200 based on the hierarchical structure information 130. Then, in the example of the figure, the second tally piece “proposal.txt0.wf” derived from the original electronic data “proposal.txt” is specified. Similarly, a search is executed in the processing target folder “folder 1” in the storage device of the file management apparatus 100, and the first tally piece “proposal.txt1.wf” is specified. Since the information of the original electronic data is pre-embedded in these tally pieces (the information read from the original electronic data by the electronic tally client 220 during tally processing is embedded in each tally piece), the original electronic data name, size, update date and time Such information can be read by the electronic tally client 220 and displayed on a tree structure corresponding to the predetermined hierarchical structure.

  Note that the electronic tally client 220 (original display unit 112) includes both the storage device 101 of the file management device 100 and the storage device 201 of the portable storage medium 200 connected to the medium interface 107 of the file management device 100. Only for tally pieces that are in the same area in the predetermined hierarchical structure and constitute a tally piece set with respect to each other, information on the electronic data that is the original of the tally piece is read out, and the information on the original electronic data is read out in the predetermined hierarchical structure The information 130 is displayed on the output interface 106. That is, the original display process is not executed unless the second tally piece constituting the tally piece set is searched from the portable storage medium 200 and the second tally piece constituting the tally piece set is searched from the file management apparatus 100. Therefore, for example, when the file management apparatus 100 is shared and used by a plurality of people, the second tally pieces stored for each portable storage medium 200 and the hierarchical structure information 130 are different, so the same file management apparatus Even if the portable storage medium 200 is connected to 100, the information on the original electronic data is not acquired and displayed from the tally pieces managed for others.

  Next, the original electronic data restoration process will be described. FIG. 7 is a diagram showing an outline of the restoration processing in the present embodiment. As a situation in which the original electronic data is restored based on the tally piece set, for example, during execution of the electronic tally client 220, an execution instruction is given to the original electronic data displayed on the output screen of the electronic tally client 220 Can be assumed.

  Prior to the execution instruction, the electronic tally client 220 (restoring unit 113) stores the electronic tally client 220 in its own storage device 101 as shown in the example of FIG. The portable storage medium in which the first tally piece of the original electronic data is read, and the search for the second tally piece in the area corresponding to the area A where the first tally piece is stored is connected to the medium interface 107 This is executed in the predetermined hierarchical structure of 200 (s109). Further, the original electronic data is restored using the second tally piece and the first tally piece specified in the search (s110).

  Here, the electronic tally client 220 (restoring unit 113) performs the second tally piece and the first tally before restoring the original electronic data using the second tally piece and the first tally piece. Searching for whether the original electronic data restored by the piece already exists in the storage device of the file management device 100 or the portable storage medium 200, and starts the restoration process only when the corresponding original electronic data does not exist; This is preferable.

  When the electronic tally client 220 (restoring unit 113) restores the original electronic data using the second tally piece and the first tally piece, the file name or extension of the electronic data being restored, etc. Is set to be different from the corresponding attribute of the original electronic data. In the above example, “Proposal.txt.temp” is set instead of “Proposal.txt”. By making these settings, tallying based on the original electronic data being restored is not executed when the OS is shut down, sleeps, the portable storage medium is lost, the OS is abnormally terminated, etc. (extension is “temp”) If it is, do not execute tally processing etc.). In the next start-up processing, recovery processing such as original tallying and deletion is performed. In addition, after the restoration process is completed, the electronic tally client 220 changes the attribute “proposal.txt.temp” to “proposal.txt” that is the same as the corresponding attribute of the original electronic data.

  When the restoration processing of the original electronic data is completed, the electronic tally client 220 reads and executes the corresponding application from the storage device 101 in response to the execution instruction, and opens the original electronic data (s111). Thereafter, when the application is terminated, the electronic tally client 220 detects the termination of the application (event detection may be performed), and the corresponding original electronic data is tallyed in the processing target folder, and the original electronic data is deleted. Perform (s112).

  When the electronic tally client 220 is terminated, the electronic tally client 220 executes a search for original electronic data with respect to the processing target folder (s113). After the OPEN check, the tally processing is executed (s114). Further, after the tally processing is completed, the corresponding original electronic data is deleted (s115).

--- Processing flow example 2 ---
FIG. 9 is a flowchart showing a processing procedure example 2 of the file management method accompanying the electronic tally processing of this embodiment. Next, the file management device 100 or the portable storage medium 200 has the region A where the original electronic data is located and the tally pieces generated from the original electronic data in the file management device 100 or the portable storage medium 200. A case will be described in which an index file 125 describing a correspondence relationship with a storage destination is provided.

  In this case, the tally generating unit 111 stores the first tally piece constituting the tally piece set in the storage destination in the storage device 101 of the file management apparatus 100 defined in the index file 125, and the second The tally piece is stored in the storage destination in the storage device 201 of the portable storage medium 200 defined in the index file 125 (s200).

  In the example of the index file 125 shown in FIG. 2B, for example, from the original electronic data “memo.txt” stored in “folder 1”, the electronic tally client 220 executes the first tally piece and the second tally. The first tally piece is “folder 5” and the second tally piece is “folder 3”. Also, the file name itself is completely different from the original electronic data. The first tally piece is “wxyz” and the second tally piece is “stuvw”.

  Also, the electronic tally client 220 (original display unit 112) identifies the storage location of the tally piece and the information of the area A in the predetermined hierarchical structure corresponding to the storage location from the index file 125 (s201), The information of the electronic data that is the original of the tally piece is read from the stored tally piece, and the information of the original electronic data is displayed on the output interface 106 together with the information of the area A of the predetermined hierarchical structure ( s202). It can be assumed that the original electronic data information is put in the index file in advance to reduce the display speed.

  The electronic tally client 220 (restoring unit 113) reads the first tally piece stored in its own storage device 101 based on the index file 125 when performing restoration processing of electronic data. A search for the second tally piece constituting the tally piece and the tally piece set is executed in the portable storage medium 200 based on the index file 125 (s203), and the second tally piece specified by the search is executed. And restoring the original electronic data using the first tally piece (S204).

  In any case, when searching for the tally pieces and restoring the original electronic data, it is necessary to specify the locations of the first tally piece and the second tally piece based on the information of the index file 125. That is, it is impossible to estimate the original electronic data from the name and location of the tally piece without the index file 125.

--- Processing flow example 3 ---
FIG. 10 is a flowchart showing a processing procedure example 3 of the file management method associated with the electronic tally processing of this embodiment. The index file 125 described above may be subjected to tally processing and restoration processing as in the original electronic data. In this case, the electronic tally client 220 (tally unit 111) performs tally processing on the index file 125 to generate an index file tally piece set (s300). The setting criteria such as the name of the tally piece are the same as those of the original electronic data. Further, the index file 125 is also stored in a predetermined hierarchical structure (area A) in the storage device of the file management apparatus 100, similarly to the original electronic data.

  Next, the electronic tally client 220 uses one tally piece (first tally piece) constituting the index file tally piece set as a storage destination (predetermined hierarchical structure) of the index file 125 in the storage device of the file management apparatus 100. The other tally piece (second tally piece) is generated in the storage device 201 of the portable storage medium 200 connected to the medium interface 107. In the predetermined hierarchical structure, it is stored in an area corresponding to the area A (s301).

  In this case, the electronic tally client 220 (restoring unit 113) reads one tally piece of the index file tally piece set stored in its storage device 101 prior to performing the restoration processing of the electronic data, A search for the other tally piece in the area corresponding to the area A where one tally piece was stored is executed in the predetermined hierarchical structure of the portable storage medium 200 connected to the medium interface 107 (s302). The restoration processing of the index file 125 is executed using the other tally piece and the one tally piece of the index file tally piece set specified by the search (s303).

--- Processing flow example 4 ---
FIG. 11 is a flowchart showing a processing procedure example 4 of the file management method associated with the electronic tally processing of this embodiment, and FIG. 12 is a diagram showing an outline of the data update processing in this embodiment. Subsequently, when an update instruction is received from the input interface 105 for the original electronic data information in a certain area in the predetermined hierarchical structure displayed on the output screen (output interface 106) of the electronic tally client 220. Processing will be described. The update instruction includes any one of a move or copy instruction to another area in the predetermined hierarchical structure, a delete instruction, and a name change for the information (or index file 125) of the original electronic data.

  At this time, the electronic tally client 220 (data updating unit 114) displays the original electronic data in a certain area (“Folder 1” in the example of FIG. 12) displayed in the output interface 106 in the predetermined hierarchical structure. 12 (similarly, “customer data.txt” in the example of FIG. 12), an update instruction (“move” in the example of FIG. 12) is received from the input interface 105 (s400). A tally piece set corresponding to the data (or index file 125) is searched in the storage device (storage device of the file management apparatus 100 and the portable storage medium 200) (s401), and if the corresponding tally piece set cannot be searched (s401). : No), a warning message is displayed on the output interface 106, and the update process according to the movement instruction is performed. Do not execute (s402).

  On the other hand, if the corresponding tally piece set can be searched (s401: Yes), tally piece update processing corresponding to the original electronic data is executed in accordance with the movement instruction (s403). In the example of FIG. 12, “customer data.txt” that was in “folder 1” is moved to “folder 3” in response to a drag and drop instruction.

  In accordance with this movement instruction, the electronic tally client 220 moves the tally piece “customer data.txt0.wf” of the “customer data.txt” to the “folder 3” in the predetermined hierarchical structure (s404). Further, the “customer data.txt0.wf” and the tally piece “customer data.txt1.wf” constituting the tally piece set are also in a predetermined hierarchical structure of the portable storage medium 200 connected to the medium interface 107. Move to “folder 3” (s405). The electronic tally client 220 executes the data update process not only on the original electronic data but also on the index file 125 in the same manner. By executing such a data update process, it is possible to prevent the location of the first tally piece and the second tally piece constituting the tally piece set from being different from each other in a predetermined hierarchical structure, thereby reliably restoring the original electronic data. Then it will occupy.

  According to the present embodiment, efficient and reliable execution such as tally processing and restoration processing can be performed, and a file management technique with excellent usability associated with electronic tally processing can be provided.

  As mentioned above, although embodiment of this invention was described concretely based on the embodiment, it is not limited to this and can be variously changed in the range which does not deviate from the summary.

1 is an overall configuration diagram of a file management system associated with electronic tally processing in the present embodiment. It is a figure which shows the data structure example of (a) information of predetermined hierarchy structure and (b) index file in this embodiment. It is a flowchart which shows process sequence example 1 of the file management method accompanying the electronic tally process of this embodiment. It is a figure which shows the process outline | summary of the tally process in this embodiment. It is a figure which shows the example of a name setting of the tally piece in this embodiment. It is a figure which shows the outline | summary of the original display process in this embodiment. It is a figure which shows the outline | summary of the decompression | restoration process in this embodiment. It is a figure which shows the example of a search area | region of the tally piece set in this embodiment. It is a flowchart which shows the process procedure example 2 of the file management method accompanying the electronic tally process of this embodiment. It is a flowchart which shows the process procedure example 3 of the file management method accompanying the electronic tally process of this embodiment. It is a flowchart which shows process sequence example 4 of the file management method accompanying the electronic tally process of this embodiment. It is a figure which shows the outline | summary of the data update process in this embodiment.

Explanation of symbols

10 File management system 100 associated with electronic tally processing File management device 101, 201 Storage device 102, 202 Program 103, 203 Memory 104, 204 CPU
105, 205 Input interface 106, 206 Output interface 107 Medium interface 110 Folder monitoring unit 111 Tallying unit 112 Original display unit 113 Restoring unit 114 Data updating unit 125 Index file 126 Tally piece storage unit 130 Information of predetermined hierarchical structure 140 Network 200 Possible Portable storage medium 207 Communication interface 210 Authentication program 211 Tally / restoration library 212 Library providing unit

Claims (14)

A file management method for tally processing of electronic data and restoration processing based on tally fragments,
The computer and the computer-readable portable storage medium, wherein the storage device has the same hierarchical structure and the same hierarchical name, and the electronic data to be tallyed is located As information on a predetermined hierarchical structure in the storage device, information on each hierarchical name in the hierarchical structure from the highest hierarchy to the hierarchy in which the original electronic data is stored is stored in each storage device of the computer and the portable storage medium. Storing and
The computer is
A folder monitoring process for monitoring the predetermined hierarchical structure based on information of the predetermined hierarchical structure stored in a storage device and detecting electronic data located in the predetermined hierarchical structure;
A tally processing is performed on the electronic data detected in the predetermined hierarchical structure to generate a tally piece set, and one tally piece constituting the tally piece set is used as a hierarchy in which the electronic data is located in the predetermined hierarchical structure. The other tally piece is stored in a region having the same hierarchical name as the layer corresponding to the region A in the predetermined hierarchical structure generated in the storage device of the portable storage medium connected to the interface. Tally processing,
From the tally pieces existing in the predetermined hierarchical structure, information on the original electronic data name is read as electronic data information that is the original of the tally piece, and the original electronic data name information is output together with the information on the predetermined hierarchical structure. Original display processing to be displayed on the interface,
When performing restoration processing of electronic data, the one tally piece stored in its own storage device is read, and the hierarchy having the same hierarchy name as the hierarchy corresponding to the area A in which the one tally piece is stored And searching for the other tally piece using the original electronic data name as a key in the predetermined hierarchical structure of the portable storage medium connected to the interface, and the other tally piece specified by the search Performing a restoration process of the electronic data using the one tally piece; and a restoration process;
A file management method associated with electronic tally processing, wherein: The computer or portable storage medium includes an index file describing a correspondence relationship between the area A where the electronic data is located and a storage destination of a tally piece generated from the electronic data in the computer or the portable storage medium. And
In the tally processing, one tally piece constituting the tally piece set is stored in a storage destination in a storage device of the computer defined in the index file, and the other tally piece is defined in the index file. Stored in a storage location in the storage device of the portable storage medium
The original display process specifies the storage location of the tally pieces and the information of the area A in the predetermined hierarchical structure corresponding to the storage location from the index file, and the original of the tally pieces from the specified storage destination tally pieces reads information of the original electronic data name as information of the electronic data to be is intended to appear in the output interface information of the original electronic data name with information of the area a of the predetermined hierarchical structure,
The restoration process reads the one tally piece stored in its own storage device based on the index file when performing the restoration process of electronic data, and configures the one tally piece and the tally piece set The search for the other tally piece is executed in the portable storage medium based on the index file, and the electronic data is restored using the other tally piece and the one tally piece specified in the search. Is to perform
The file management method associated with electronic tally processing according to claim 1. The index file is set such that the file name of the tally piece associated with the region A where the electronic data is located is different from the file name of the electronic data,
In the tally processing, when a tally piece set is generated by executing the tally processing for the electronic data, the file name of the electronic data is set for the one tally piece and the other tally piece constituting the tally piece set. A name different from the above is generated by a random number and set as a file name of tally pieces to be associated with the corresponding electronic data in the index file.
The file management method associated with electronic tally processing according to claim 2. The computer
Receiving the instruction to use the corresponding electronic data in the output interface for displaying the information of the original electronic data, and executing the restoration process;
Monitoring the end event of the application started in response to the use instruction, and executing the tally process of the electronic data restored by the restoration process upon detection of the end event;
The file management method accompanying the electronic tally processing according to any one of claims 1 to 3 . The tally process and restoration process, any one of claims 1-4, characterized in that the tallied and restoration library read from the portable storage medium connected to the interface of the computer and is executed File management method for electronic tally processing described in 1. The portable storage medium is
An authentication program and the tally / restoration library are provided in its own storage device,
When connected to the interface of the computer, the authentication program is started to execute password authentication processing. When the password authentication is successful, the tally / restoration library is read from the storage device, and the computer 6. The file management method associated with electronic tally processing according to claim 5 , wherein library providing processing provided for the tally processing or restoration processing is executed. The original display processing exists in a hierarchy having the same hierarchical name in a predetermined hierarchical structure of both the storage device of the computer and the storage device of the portable storage medium connected to the interface of the computer, and the original electronic data For the tally pieces constituting the set of two tally pieces generated from one original electronic data whose names match each other, the information of the original electronic data name is read as the electronic data information that is the original of the tally pieces. 7. The file management method for electronic tally processing according to claim 6 , wherein the information of the original electronic data is displayed on an output interface together with the information of the predetermined hierarchical structure. The computer
If an update instruction is received from the input interface for the information of the original electronic data in a certain area in the predetermined hierarchical structure displayed on the output interface, the update processing of the tally pieces corresponding to the original electronic data is performed. And performing a data update process for executing the update process on the portable storage medium connected to the interface for the tally piece and the other tally piece constituting the tally piece set. Item 8. A file management method associated with electronic tally processing according to Item 6 or 7 . The update instruction, against the original electronic data information, and move or copy instructions to other regions in the predetermined hierarchical structure, which includes a deletion instruction, either the rename, the data update 9. The file management method for electronic tally processing according to claim 8 , wherein processing is executed in accordance with the update instruction. In the data updating process, the update instruction is against the original electronic data information, wherein when the predetermined is a movement instruction of the hierarchical structure to another region, store a set of tally piece corresponding to the original electronic data device 10. The file management method for electronic tally processing according to claim 9 , wherein the update processing according to the movement instruction is not executed if the corresponding set cannot be searched by performing a search within the electronic tally processing. In the data updating process, the update instruction is against the original electronic data information, wherein when the predetermined is a movement instruction of the hierarchical structure to another region, store a set of tally piece corresponding to the original electronic data device 11. The file management method for electronic tally processing according to claim 10 , wherein a warning message is displayed on the output interface if the corresponding set is not searched. In the restoration process, when restoring the original electronic data using the other tally piece and the one tally piece, attributes such as a file name or an extension of the electronic data being restored are matched with the corresponding original electronic data. set the attribute different, changes the attribute after the restoration process is completed the same as the corresponding attributes of the original electronic data, it into electronic tallies process according to any one of claims 1 to 11, wherein Accompanying file management method. In the restoration process, the original electronic data restored by the other tally piece and the one tally piece is restored before the original electronic data is restored using the other tally piece and the one tally piece. 13. The electronic tally processing according to claim 12 , wherein a search is made for whether the computer or the portable storage medium already exists, and the restoration processing is started only when the corresponding original electronic data does not exist. File management method. A computer that performs file management for electronic data tally processing and restoration processing based on tally fragments,
A computer-readable portable storage medium, a storage device in which the hierarchical structure and the hierarchical names have the same hierarchical structure, and a predetermined storage device of the computer in which the electronic data to be tallyed is located As a hierarchical structure information , a storage device storing information of each hierarchical name in a hierarchical structure from the highest hierarchy to a hierarchy storing original electronic data , an arithmetic device, and an interface for connection to a portable storage medium, ,
A folder monitoring unit that monitors the predetermined hierarchical structure based on the information of the predetermined hierarchical structure stored in a storage device, and detects electronic data located in the predetermined hierarchical structure;
A tally processing is performed on the electronic data detected in the predetermined hierarchical structure to generate a tally piece set, and one tally piece constituting the tally piece set is used as a hierarchy in which the electronic data is located in the predetermined hierarchical structure. The other tally piece is stored in a region having the same hierarchical name as the layer corresponding to the region A in the predetermined hierarchical structure generated in the storage device of the portable storage medium connected to the interface. And the tally part,
From the tally pieces existing in the predetermined hierarchical structure, information on the original electronic data name is read as electronic data information that is the original of the tally piece, and the original electronic data name information is output together with the information on the predetermined hierarchical structure. An original display section to be displayed on the interface;
When performing restoration processing of electronic data, the one tally piece stored in its own storage device is read, and the hierarchy having the same hierarchy name as the hierarchy corresponding to the area A in which the one tally piece is stored And searching for the other tally piece using the original electronic data name as a key in the predetermined hierarchical structure of the portable storage medium connected to the interface, and the other tally piece specified by the search A restoration unit that performs restoration processing of the electronic data using the one tally piece;
A file management apparatus comprising:

Images