JP2004139432A - Data structure for structured document and structured document management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology for suppressing an increase in the traffic of a network when a duplicate holding terminal device connected to the network requests update data for a structured document to an original document managing terminal device similarly connected to the network. <P>SOLUTION: This data structure for the structured document A in each of the original document managing terminal device 2 and the duplicate holding terminal device 3 connected to the network comprises partitioning information 12 for partitioning the structured document A into a plurality of portions, portion identifying information 13 for identifying portions Y1, Y2 and Y3 of the structured document partitioned by the partitioning information 12, and inquiry necessity information for specifying the necessity or not of an inquiry about updated conditions of the portions Y1, Y2 and Y3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a management system for a structured document shared by a plurality of terminals on a network, and a data structure of a structured document used in the management system.
[0002]
[Prior art]
2. Description of the Related Art In recent years, opportunities to share structured documents such as XML (extensible Markup Language) and HTML (HyperText Markup Language) among a plurality of terminal devices on a computer network have been increasing. When a structured document is used for the purpose of sharing information, one terminal device (hereinafter, referred to as an “original management terminal device”) holds and manages an original of the structured document, and a copy of the original is stored in another terminal. It is often the case that a plurality of terminal devices (hereinafter referred to as “copy-owning terminal devices”) own and use them.
[0003]
Normally, in order to maintain the identity of the original and its own copy, the copy-owning terminal requests a copy of the latest original from the original management terminal at regular intervals, and copies the received duplicate data. Update with a copy that you own. As a related art related thereto, for example, there is a document management method disclosed in Patent Document 1.
[0004]
[Patent Document 1]
JP-A-2002-24211 (page 6, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, when the number of copy-owning terminal devices is large or the data amount of the structured document is large, the time required for updating and the traffic on the network increase, and other terminal devices connected to the same network, etc. Problems such as adverse effects occur.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and when a copy-owning terminal device connected to a network requests update data from an original management terminal device also connected to the network, exchange of update data is performed. It is an object of the present invention to provide a technique for shortening the time required for network and suppressing an increase in traffic in a network.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a data structure of a structured document according to claim 1 identifies partition information for partitioning the structured document into a plurality of parts and each part of the structured document partitioned by the partition information. And the necessity information for designating the necessity of inquiry about the update status of each part.
[0008]
A structured document according to a second aspect is characterized in that, in the data structure of the structured document according to the first aspect, the inquiry necessity information includes expiration date information for specifying when to inquire about an update status.
[0009]
According to a third aspect of the present invention, there is provided a structured document management system including: a copy-owning terminal having a copy of the structured document according to the second aspect; and an original management terminal having an original of the structured document according to the second aspect. In a structured document management system, the copy-owning terminal device specifies to the original management terminal device that the inquiry necessity information indicates that an inquiry is necessary, and presents part identification information of a structured document part, An inquiry is made as to whether or not there is an update and new expiration date information, and the respective parts of the structured document are updated based on a response to the inquiry from the original document management terminal device.
[0010]
A structured document management system according to a fourth aspect of the present invention is the structured document management system according to the third aspect, wherein the copy-owning terminal device is transmitted from the original management terminal device as the response when there is an update. Upon receiving the update data of the relevant part, the relevant part of the copy owned by itself is updated, and if there is no update, the new expiration date information of the relevant part transmitted from the original management terminal device as the response is received. Then, it is characterized by updating the expiration date information of the part of the copy owned by itself.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a data structure of a structured document and a structured document management system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a system configuration example of a structured document management system 1 according to an embodiment of the present invention. The structured document management system 1 includes an original management terminal device 2 having an original A1 of a structured document A, and a plurality of copy-owning terminal devices 3 having a copy A2 of the structured document A, and a computer network such as a LAN. (Local area network) 4.
[0012]
FIG. 2 shows a configuration example of the original management terminal device 2 and the copy possession terminal device 3. That is, the original management terminal device 2 and the copy possession terminal device 3 include a CPU (central processing unit) 5, a ROM (read only memory) 6, a RAM (random access memory) 7, a LAN interface 8, an input unit X such as a keyboard, It has a configuration in which an output unit Y such as an LCD is connected by a bus 9. The CPU 5 controls each unit constituting the original management terminal device 2 and the copy ownership terminal device 3 according to a predetermined program. The RAM 7 functions as a storage unit for storing the structured document A, and as a storage unit for temporarily storing various data. The ROM 6 stores various programs for the CPU 5 to control the operation of each unit of the original management terminal device 2 or the copy possession terminal device 3.
[0013]
FIG. 3 shows a data structure 10 of a structured document according to the embodiment of the present invention. The structured document data structure 10 includes document identification information 11 for identifying a document, partition information 12 for dividing the structured document A into a plurality of parts, and structured document A partitioned by the partition information 12. It includes part identification information 13 for identifying each part, and inquiry necessity information for specifying whether an inquiry about the update status of each part of the structured document A is necessary. The inquiry necessity information includes, for example, expiration date information 14 for specifying an expiration date. The necessity of an inquiry about the update status of each part is specified based on whether the expiration date information 14 is described. That is, the portion where the expiration date information 14 is described indicates that an update status inquiry is necessary, and the portion where the expiration date information 14 is not described indicates that the update status inquiry is unnecessary. The part identification information 13 is described for each part partitioned by the partition information 12. Note that, in the structured document A, in addition to the above-described various information, a portion partitioned by the partition information 12 includes information Z on the content (hereinafter, referred to as “content information Z”). May be included.
[0014]
FIGS. 4 and 5 show examples of the structured document described in the XML format as specific examples of the structured document shown in FIG. The XML document A is shared by a facsimile server and a client mutually connected by a network. The original A1 of the XML document is held by the facsimile server which is the original management terminal device 2, and the copy A2 of the XML document is And the client terminal device which is the copy-owning terminal device 3.
[0015]
The document identification information 11, partition information 12, site identification information 13, expiration date information 14, and the like constituting the data structure 10 are identified by the type of tag. That is, the original document management terminal device 2 and the copy possession terminal device 3 use the information described in the tag “<documentID>” as the document identification information 11 and the tag “<Part>” as the partition information 12 in the XML document A. , The information described in the tag “<PartID>” as the part identification information 13 and the information described in the tag “<timeout>” as the expiration date information 14. In the parts Y2 and Y4 separated by the tag “<Part>”, further partition information 12 (tag “<Part>”) is described in a nested manner, and the nested tag “<Part>” is written. ", The portions Y2 and Y4 of the structured document are further partitioned to form partitioned portions Y3 and Y5.
[0016]
The expiration date information 14 indicates an elapsed time from the time of updating the relevant portion of the structured document A. For example, if the expiration date information is “5” as shown in FIG. The time when 5 minutes have passed since the update is determined as the expiration date.
[0017]
In the XML document A, a portion surrounded by a tag “<Tx>” includes information related to transmission in the communication history information of the facsimile server, and a portion surrounded by a tag “<Rx>” includes Among them, information about reception is included. Further, in the number tags “<001>”, “<002>”,..., Communication history information of the facsimile server is stored for each case. Each number tag includes a number tag “<tel>”, “<mode>” or the like as information such as a telephone number of a communication partner, a communication mode, a communication date and time, and information indicating a communication result. It is described as a nest such as “<001>”.
[0018]
Next, the communication processing operation performed by the original document management terminal device 2 and the copy possession terminal device 3 having the structured document A shown in FIGS. 4 and 5 will be described with reference to the flowchart shown in FIG. The operation described based on this flowchart is executed according to a command issued by the CPU 5 based on a control program stored in each ROM 6.
[0019]
The copy ownership terminal device 3 determines whether or not the expiration date specified in the expiration date information 14 included in the copy A2 of the structured document owned by itself has passed (S1). Here, the determination as to whether or not the expiration date has passed is made based on whether or not the portion including the expiration date information has passed the time specified in the priority expiration date information 14 since the last update. If it is determined that the expiration date has passed, the part identification information 13 (such as “A001-001” described in the tag “<partID>”) written in the same portion as the expiration date information 14 is used as the original. It is presented to the management terminal device 2 to inquire about the presence or absence of update and new expiration date information (S2).
[0020]
When the original document management terminal device 2 receives the inquiry indicating the site identification information 13 from the copy possession terminal device 3 (S3), the portion corresponding to the site identification information 13 presented in the original document A1 of the structured document owned by the original document management terminal device 2 is obtained. It is determined whether the data has been updated (S4). Here, the determination as to whether or not the part has been updated is made based on whether or not the part has been updated from the time when the previous inquiry was received and new expiration date information was issued to the present time. .
[0021]
When the original management terminal device 2 determines in S4 that the data of the corresponding part has been updated (S4: YES), the entire part corresponding to the part identification information 13 presented from the duplication possession terminal device 3 is updated. The data is transmitted to the copy-owning terminal device 3 (S5), and if it is determined that the data has not been updated, the new expiration date information 14 is transmitted to the copy-owning terminal device 3 together with the site identification information 13 (S6). ).
[0022]
When the original management terminal device 2 as a facsimile server performs a new facsimile communication and additionally updates communication history information (not shown), as shown in FIG. In, at the beginning of the portion Y3 or Y5 that does not include the content information Z, the content information Z 'corresponding to the added communication history information and the information with the new number tag "<004>" added and updated. . For this reason, the original document management terminal device 2 performs, as the processing operation of S5, the new number tag added from the previous inquiry time to the present time and the content information Z ′ described in addition to the data of the entire corresponding portion. It is transmitted to the copy-owning terminal device 3.
[0023]
In S5 or S6, when the data is transmitted from the original management terminal device 2 and the duplication possession terminal device 3 receives the data (S7), the received data includes the expiration date information 14 and the content information Z, Z '. If not (S8), the validity period information 14 of the portion corresponding to the part identification information 13 included in the received data is updated to the acquired new validity period information (S9). On the other hand, when it is determined that the received data includes the content information Z and Z ′ in addition to the expiration date information 14, the copy-owning terminal device 3 updates the updated data (the aforementioned If the new number tag is included, the new tag is replaced with the new number tag and the content information Z 'described in the tag (S10).
[0024]
As is clear from the above description, according to the structured document management system, when the copy A2 of the structured document held by the copy ownership terminal device 3 is updated, the copy ownership terminal device 3 An inquiry about the presence or absence of an update is performed for each part of the copy A2. If the part is updated, only the part is updated. If not, only the expiration date information is updated. For this reason, compared with the system according to the conventional example in which the entire structured document is updated every time, traffic is significantly reduced and the update time is shortened. Further, since the portion in which the expiration date information 14 is not described is not updated, information that does not need to be updated (for example, the title column of the communication history information in the facsimile server) is assigned to the portion. Improvement is achieved.
[0025]
In the present embodiment, the expiration date information 14 indicates the elapsed time from the time of updating the relevant part of the structured document A, but the description format is not limited to this, and for example, “9/17” / 08: 00 ”is written as expiration date information, and various processing decisions such as S1 are executed on the basis of whether or not the specified date and time of each terminal device 2, 3 has passed. You may make it.
[0026]
【The invention's effect】
The data structure of the structured document according to claim 1, comprising: partition information for partitioning the structured document into a plurality of parts; part identification information for identifying each part of the structured document partitioned by the partition information; Since it includes the inquiry necessity information specifying whether the inquiry of the update status of each part is necessary, the copy ownership terminal device presents the part identification information of the part specified in the inquiry necessity information, and By inquiring of the original management terminal device whether or not there is an update, it becomes possible to request and update data only for a part of the structured document that may be updated. Also, the copy-owning terminal device makes an update inquiry for each part partitioned by the partition information, while the original management terminal device responds to the inquiry only when the relevant portion has been updated. Is returned to the copy-owning terminal device, it is possible to suppress traffic on the network including the copy-owning terminal device and the original management terminal device.
[0027]
According to the data structure of the structured document, since the inquiry necessity information includes the expiration date information, it is possible to set the update time of each part of the structured document. Further, by setting the expiration date information of each part to be different from each other, it is possible to shift the update inquiry timing of each part, thereby preventing a sudden increase in traffic that may occur due to the coincidence of the update inquiry timing. Can be.
[0028]
According to the structured document management system according to the third aspect, it is possible to configure a structured document update part and a non-update part based on the inquiry necessity information. Inquiries and data exchange can be performed. Therefore, according to the present system, the traffic is significantly reduced and the update time is shortened as compared with the system according to the related art in which the entire structured document is updated every time.
[0029]
According to the structured document management system of the present invention, when a copy of the structured document possessed by the copy-owning terminal device is updated, an inquiry is made as to whether or not each copy of the structured document is updated, and the copy is updated. Only in that case, the update is executed only for the relevant part. For this reason, according to the present system, compared with the system according to the conventional example in which the entire structured document is updated every time, traffic can be significantly reduced and the update time can be shortened. Further, the original document management terminal device issues new expiration date information every time there is an inquiry, so that it is possible to control the update time and the like of each part of the structured document.
[Brief description of the drawings]
FIG. 1 is a diagram showing an example of a system configuration of a structured document management system according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a configuration example of an original management terminal device and a copy possession terminal device.
FIG. 3 is an explanatory diagram of a data structure of a structured document.
FIG. 4 is a description example of an XML document exchanged between a facsimile server (original management terminal device) and a client (copy ownership terminal device) shown as an example of a structured document.
FIG. 5 is a description example of an XML document exchanged between a facsimile server (original management terminal device) and a client (copying possession terminal device) shown as an example of a structured document.
FIG. 6 is a flowchart showing a processing operation executed when the structured document management system according to the embodiment of the present invention updates (updates) a structured document.
FIG. 7 is a diagram showing a state in which an original of a structured document is updated, which is included in a facsimile server (original management terminal device) in accordance with updating of communication history information.
[Explanation of symbols]
A Structured Document A1 Original Structured Document A2 Structured Document Copy 1 Structured Document Management System 2 Original Document Management Terminal 3 Copy Owning Terminal 5 CPU
6 ROM
10 Data Structure of Structured Document 12 Partition Information 13 Site Identification Information 14 Expiration Date Information

Claims (4)

Partition information for dividing the structured document into a plurality of parts, part identification information for identifying each part of the structured document partitioned by the partition information, and necessity of inquiry about the update status of each part is specified. And information on the necessity of inquiry to be made. 2. The data structure of a structured document according to claim 1, wherein the inquiry necessity information includes expiration date information specifying a time when an update status is inquired. A structured document management system comprising: a copy possession terminal device having a copy of the structured document according to claim 2; and an original management terminal device having an original copy of the structured document according to claim 2. The terminal device, for the original document management terminal device, specifies that the inquiry necessity information is necessary for inquiry, presents the part identification information of the structured document part, inquires about the presence or absence of update and new expiration date information, A structured document management system, which updates each part of the structured document based on a response to the inquiry of the original document management terminal device. When there is an update, the copy-owning terminal device receives the update data of the portion sent from the original management terminal device as the response, updates the portion of the copy owned by itself, and updates the copy. Receiving the new expiration date information of the portion transmitted from the original management terminal device as the response, and updating the expiration date information of the portion of the copy owned by itself. 3. The structured document management system according to item 3.

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