JP2002236858A - Lending-return control system and lending-return control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system capable of correctly reflecting the content in a control master held by a host computer by accepting lending-return processing in a terminal even in a network unconnectable off-line state in the system for controlling lending and return of an article by connecting the host computer and the terminals by the network. SOLUTION: In the off-line state, the terminals 20 and 30 form off-line data corresponding to accepted lending-return processing, and transmits the data to the host computer 10 after restoring the off-line state. The host computer 10 executes optimization corresponding to duplicate processing and correction processing after sorting the off-line data accepted from the respective terminals in order of the processing time in a data unit, and updates the content of a control information master 14 according to the off-line data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lending / return management system in which a host computer and a terminal are connected, and in particular, a lending / returning process at a terminal even when the host computer and the terminal are offline. A possible book management system.

[0002]

2. Description of the Related Art Conventionally, as a typical example of a lending / return management system, there is a library system for managing lending / return processing in a library operated by a local government, a school, a company, or the like. These library systems provide management of lending / returning of books and other book materials as a major service, and other ancillary services include book reservations for book lending and reminders to return book materials that have passed their return deadline. Also, search for book materials. In order to provide such services, the library system holds management information for managing the lending / returning status of book materials, the usage status of book materials for each user, and the like.

[0003] As a configuration of a library system, a host computer that manages management information collectively and updates management information sequentially according to the occurrence of a lending / returning process, and a lending / returning process of individual book materials according to the operation of a staff member. There is a method in which a receiving terminal is connected by a line, and the contents of the lending / returning process received by the terminal are transmitted to a host computer through the line.

[0004] The host computer and the terminal may exist in the same building, but the library to be managed is the main building and the terminal.
If you are divided into several buildings in the annex and are far apart,
A host computer and terminals are placed in the main building, and only terminals are placed in the annex. In this case, the rental / return accepted at the annex is transmitted to the annex in real time via a line connecting the annex and the annex online.

[0005]

However, when a failure occurs in the host computer or the line and the data cannot be exchanged between the host computer and the terminal (offline state), the following problems occur. Occurs. That is, depending on the system, when the system goes offline, the lending / returning process becomes impossible. Then, the details of the lending / returning process (book information and user information) must be separately recorded manually on paper or the like, and after returning to the online state, input from the terminal again and transmitted to the host computer. Must. Such work is complicated, and erroneous information due to erroneous input or the like may be sent to the host computer.

[0006] In view of the above problems, the present invention can perform lending / returning processing at a terminal even when offline, and does not cause inconsistency or error in book management master information due to lending / returning processing performed at a terminal when offline. The purpose is to provide a book management system.

[0007]

In order to achieve the above object, a lending return management system according to the present invention includes a host computer having a management information master and a lending return process for managing lending return of an article. The host computer is a lending return management system that updates the management information master in accordance with the lending return processing received by each of the plurality of terminals. Accepting means for accepting processing, and for the loan return processing accepted by the accepting means when in the offline state with the host computer, at least offline data having article identification information and processing time information to identify the article to be rented and returned Offline data generating means for generating, the host computer, each of the plurality of terminals Acquiring means for acquiring the off-line data generated by, and merging and sorting the offline data acquired from each of the plurality of terminals according to the article identification information and the processing time information, and then obtaining the same article identification information. And master updating means for performing a master update based on the offline data in the order according to the processing time information for each offline data having

[0008] As a result, the information of the loan return received by each terminal at the time of offline is recorded as offline data, and the host computer having obtained the information returns the offline data after merging and sorting the offline data obtained from each terminal. Is reflected in the management information master, so that the contents of the loan return processing are reflected in the management information master in the same order as the contents of the individual loan return processing are reflected in the management information master in real time online Thus, the terminal can accept the lending / returning process even when the terminal is off-line, and there is no inconsistency or error in the contents of the management master due to the lending / returning process performed on the terminal during the off-line.

In order to achieve the above object, a lending / return management method according to the present invention comprises a host computer having a management information master and a plurality of terminals receiving lending / returning processing for managing lending / returning of articles. A lending return management method for updating a management information master held by the host computer in accordance with a lending return process received by each of the plurality of terminals, wherein each of the plurality of terminals performs return lending. The receiving step of receiving and executing the receiving step when the host computer is in an offline state and accepting the returned lending, at least, offline data having article identification information and processing time information for specifying the article to be returned and returned. An offline data generating step generated by each of the plurality of terminals; Computer has an acquisition step of acquiring off-line data generated by each of the plurality of terminals in the off-line data generating step,
The host computer merges and sorts the offline data acquired in the acquiring step according to the material identification information and the processing time information, and then, for each offline data having the same material identification information, according to the processing time information. And a master update step of performing a master update based on the offline data in order.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the book management system of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an outline of a book management system 1 according to the present embodiment. The book management system 1 includes a host computer 10 and a terminal 10 located in the central library A.
0a, 100b, 100c, and terminals 20, 20a arranged in the first library branch B and terminals 30, 30a arranged in the second library branch C are connected by a line 40.

[0011] Books can be borrowed and returned from Central Library A, No. 1.
It is performed in the library annex B and the second library annex C, and includes various book management information (loan information indicating the lending / returning status of books, user information indicating the usage status of books for each user, and a bibliography as a catalog of books. The information is collectively managed as a management information master by the host computer 10 in the central library A. Therefore, information on the lending / returning process performed in the first library branch B and the second library branch C is transmitted from the terminals 20 and 30 to the host computer 10 via the line 40, and the host computer 10 Update the book management information. Then, the host computer 1 can update the management information held by the host computer 10 in real time each time a book is lent / returned.
0 and the terminal are usually connected in an online state.

However, there may be a case where information cannot be transmitted and received between the terminals 20 and 30 and the host computer 10 (offline state) due to a failure of the line 40 or the like. In such a case, the terminals 20 and 30 generate and accumulate information (offline data) of the lending / returning process performed during the off-line state, and when the off-line state is canceled (return to the on-line state), The offline data is transmitted to the host computer 10. And
The host computer 10 merges the offline data received from each terminal, performs an optimization process, and updates the book management information according to the online data.

Hereinafter, the configuration and processing of the terminal and the host computer 10 will be described. (Terminal configuration) Since the terminal configuration and processing content are common,
Hereinafter, the configuration and processing contents will be described using the terminal 20 as an example. FIG.
FIG. 3 is a diagram illustrating a component that performs processing related to lending / returning, in particular, of the configuration of the terminal 20. The terminal 20
It has a lending return processing unit 21, an interface unit 22, and a terminal-side transmission / reception unit 23, and among them, the lending return processing unit 21 further includes an online processing unit 2 that performs processing when online.
11 and an off-line processing unit 2 for processing when off-line
12

The terminal-side transmission / reception unit 23 establishes communication with the host computer 10 and transmits information on lending / return sent from the lending / return processing unit 21 to the host computer 10. The terminal-side transmitting / receiving unit 23 is connected to the line 4
The status of 0 is monitored, and when the status changes to the offline status or when the status returns from the offline status to the online status, this is detected and the rental return processing unit 21 is notified.

The interface unit 22 is connected to an input / output device (not shown) such as a display, a keyboard, a barcode reader, etc., and is used for inputting / outputting information on lending / returning books. The information input to the interface unit 22 is the lending book and user identification information at the time of lending, and the values recorded on the barcode sheet attached to the book and the barcode sheet attached to the user card, respectively. (Barcode and numeric data) is input by a staff member using a barcode reader or keyboard.

FIG. 3 shows a lending / returning process interface screen displayed on a display connected to the interface unit 22. FIG. 7A shows a lending process screen, and FIG. 7B shows a return screen. The interface unit 22 displays the input book identification information and the user identification information, or only the book identification information, on these screens, and prompts the staff to confirm the contents.

In the case of lending, there are three types of information input to the interface unit 22: "processing classification information indicating lending processing", "identification information of a lent book", and "user identification information". In the case of a return, there are two types of "process classification information indicating return processing" and "identification information of a returned book". The interface unit 22 sends the input information to the lending / returning processing unit 21 for each lending or return process. At this time, the information of the processing time (date, hour, minute, second) acquired from the built-in timer is also sent to the lending return processing unit 21.

The lending return processing section 21 generates lending return data indicating the contents of the lending return processing, and sends the generated lending return data to the terminal-side transmitting / receiving section 23 for transmission to the host computer 10.
The format of the generated data differs between online and offline. When online, the online processing unit 211 generates one piece of loan return data for each lending or return process, and sends the data to the terminal-side transmitting / receiving unit 23 as it is. When offline, the offline processing unit 212 generates lending return data and stores it in a file. Then, all data generated during the offline period is stored in the file, and after returning to the online state, the file is transmitted to the terminal-side transmitting / receiving unit 23. Hereinafter, in order to distinguish the lending return data generated by the offline processing unit 212 from the data generated by the online processing unit 211, it is referred to as "offline data". A file that stores offline data is called an “offline data file”. As shown in FIG. 2, the offline processing section 212 has a built-in memory for storing the offline data file 400.

The online processing unit 211 generates lending / return data based on information sent from the interface unit 22 for books lent / returned online. The data at the time of lending has the book identification information and the user identification information, and the data at the time of return has only the book identification information. The rental return data is sent to the host computer 10 via the terminal-side transmitting / receiving unit 23. The host computer 10 determines whether the data is for lending or return processing based on the presence or absence of the user identification information.

The offline processing section 212 generates offline data based on information input from the interface section 22 in an offline state. Offline processing unit 21
2 is activated by a notification of offline detection from the terminal-side transmitting / receiving unit 23. Then, first, an offline data file for storing the offline data is generated. That is, an area is allocated in the built-in memory, and a file name is added. The name of the offline data file is created from the identification information added to the terminal and the file creation date (date). For example, if the terminal identification information is “T
In “B”, if the generation date is “November 20, 2000”, the file name is “TB001120”. The configuration of the data file is set to the minimum number of data items and the minimum data length in consideration of the capacity of the storage device of the terminal.

FIG. 4 shows an offline data file 400.
It is a schematic diagram which shows the structure of. The offline data file 400 includes a document number column 410 for storing identification information of a book to be lent / returned, a processing time column 420 for storing processing time information, and a user ID for storing user identification information. Column 430. In the user ID column 430, a value is set only for offline data corresponding to the lending process. Therefore, the offline data corresponding to the lending process and the offline data corresponding to the return process are distinguished depending on whether or not there is a value in this column. The difference from the online loan return data is that the processing time information is included in the data.
While there is almost no time lag between the lending return processing received by the terminal and the management master update processing performed by the host computer 10 in response thereto, the processing is performed in real time, whereas the information on the lending return processing received when offline is received. Is stored in the terminal until the online state is restored. That is, the time information is added so that the host computer 10 can recognize the temporal context of the loan return process corresponding to the data.

The off-line processing section 212 generates one off-line data every time information on the lending return processing is input from the interface section 22, and additionally stores the off-line data in an off-line data file. When the terminal-side transmitting / receiving unit 23 receives a notification that it has returned to the online state, the terminal-side transmitting / receiving unit 23 sends the offline data file to the host computer 10 normally. When the transmission is completed, the offline data file 400 stored in the internal memory is deleted.

In some cases, erroneous data is input from the interface unit 22 to the off-line processing unit 212 due to an operation error of a staff member or the like. For example, there is a case where a return process or a loan process is performed a plurality of times for the same book. Offline processing unit 2
No. 12 does not check the validity of the data and generates the offline data in accordance with the data input from the interface unit 22, so in the example of the operation error described above, two return offline data are continuously generated. .

If the return or lending process is performed repeatedly in the online state, the on-line processing section 211 generates lending return data for each processing on the terminal side, and the terminal-side transmission / reception section 23 transmits data to the host computer. 10
Send to In contrast, the host computer 10
For the first process data, a process for reflecting the data on the master is performed. Since the second processing data has inconsistent contents such as "returned book return processing" or "lending book lending processing", it is not reflected on the master, and an error message is sent to the terminal side transmission / reception unit 23. Send.

Further, the lending or return processing once performed may be corrected. This may occur, for example, when a user who submits an incorrect book to the counter notices an error immediately after completing the lending process and cancels the lending. In this case, the staff inputs an instruction of "correction" from the input device, and then returns the lending error,
The return error is corrected by performing a lending process. If corrections are made, no histories will be left in the user and book usage history management information for any lending / returning mistakenly performed and lending / returning performed to correct them. Must be treated as not having been performed from

However, in the case of the correction processing performed in the offline state, the offline processing unit 212 generates the normal rental or return offline data for the time being without considering whether the correction is “correction”. On the other hand, in the correction processing of the online state, the interface unit 22 notifies the “correction” to the online processing unit 211 and the online processing unit 2.
Numeral 11 generates lending return data to which information indicating "correction" is added. When the host computer 10 receives the loan return data of "correction", the host computer 10 does not reflect the loan return data on the management information master, but reads the data immediately before the book having the same data number and document number value. Perform the process of canceling the contents of the loan or return process.
(Configuration of Host Computer 10) Next, components related to the lending / returning process in the host computer 10 will be described.

FIG. 5 shows the host computer 10
It is a block diagram which shows the structure relevant to a lending / returning process. The host computer 10 includes a management information master 14 in which various management information databases (DB) are stored,
A host-side transmitting / receiving unit 11 that receives normal lending return data or an offline data file from a terminal, and a master updating unit 1 that updates a management information DB in a management information master 14
3. Offline data processing that collectively processes the offline data accumulated in the terminal during the offline state after returning to the online state, optimizes it so that it can be used for updating the management information master 14, and passes it to the master updating unit 13. It has a part 12 and the like.

The host-side transmitting / receiving unit 11 receives the rental return data or the offline data file from the terminal,
It is sent to the master update unit 13 or the offline data processing unit 12. The host-side transmission / reception unit 11 sends the data to the master update unit 13 if the received data is the normal lending return data, and sends the data to the offline data processing unit 12 if the data is the offline data file storing the offline data. Offline data will be received from multiple terminals almost simultaneously immediately after returning to the online state.

The master updating unit 13 is a host-side transmitting / receiving unit 1
The contents of the management information DB in the management information master 14 are updated in accordance with the contents of the rental return data sent from the server 1 or the optimized offline data sent from the offline data processing unit 12. Specifically, user D
B142, a loan information DB 141. Lending information DB1
Reference numeral 41 is for managing the availability of lending (whether or not lending is in progress) for each book material. Lending information DB1
As for 41, a flag indicating whether the lending is in progress or has been returned is turned ON / OFF in association with the lending / returning process.

The user DB 142 stores user information such as an address, a user's book use history, and the like, and is referred to for duties such as a reminder at the time of overdue. As for the user DB 142, with the lending / returning process,
The contents of the usage history information (such as the presence or absence of a borrowed book) is updated. The offline data processing unit 12 optimizes data included in the offline data file sent from the terminal (sort processing, processing for removing illegal data due to an operation error, etc.), and then sends the data to the master update unit 13 I do.

Hereinafter, the flow of processing of the offline data processing unit 12 will be described with reference to the drawings. FIG. 6 is a flowchart illustrating the flow of the offline data optimization process performed by the offline data processing unit 12. First, after starting, the offline data processing unit 12 accepts an offline data file and stores it in a work file (S601).
This is transmitted from each terminal to the host-side transmitting / receiving unit 11 after the online state is restored. The host-side transmitting / receiving unit 11 requests all connected terminals to transmit an offline data file, and when sending data received from the last terminal to the offline data processing unit 12, notifies the completion of data reception together. .

When the offline data processing unit 12 finishes storing the offline data files from all the terminals,
All the offline data included in these files are sorted (S602). In the sorting, the processing date (determined from the date included in the file name of each offline data file and the value in the processing time column 420 of each offline data file) is set as the first key using the value of the material number column 410 of the offline data as the first key. It is performed with the key of 2.

Then, the offline data processing unit 12
The bibliography DB 143 (list of all book materials) and the user DB 142 are queried for the material number and the user ID included in the sorted offline data, and check whether there is any data including an invalid material number and the user ID. (S60
3). When the offline data including the invalid document number and the user ID is found, an error message for notifying the invalid information is sent to the transmission source terminal (determined from the name of the offline data file including the offline data).

Next, the offline data processing unit 12
From the sorted offline data, the corresponding offline data is read out for each individual book (for each material number) (S604). Then, it is checked whether or not the read off-line data has a duplication or correction, and if there is a duplication or correction, it is corrected. As described above, the duplicate data is generated when the terminal performs the lending or returning process for the same material in duplicate. If the offline data processing unit 12 finds duplicate data (S605: Ye
s) The data with the latest time is regarded as valid data, and the other data is deleted (S606). Whether the data is duplicate data is determined based on whether or not two or more pieces of offline data for lending or returning are continuous.

FIG. 7 is a diagram showing an example of duplicate offline data and its correction result. The offline data 701, 702, and 703 shown in FIG.
JA-5E-001 ". The offline data 702 and 703 are data for return processing, and the offline data 701 is data for lending processing. There are two data for return processing. The duplication was caused by a staff error.

FIG. 3B shows the offline data processing unit 1.
Reference numeral 2 denotes data obtained as a result of correcting the duplicate data. Of the overlapping offline data 702 and 703, the offline data 703 whose processing time is later remains, and the offline data 702 is deleted. Correction data, as already mentioned, for example, for the returned material, the staff who has performed an erroneous lending process for some reason has been returned to cancel this erroneous lending process, Is generated when Offline data processing unit 12
When the corrected data is found (S607: Yes), the offline data corresponding to the erroneous process to be corrected and the offline data corresponding to the lending / returning process performed to cancel the erroneous process are combined. And erase (S
608). Whether or not the data is the correction data is determined based on whether “lending → returning” or “returning → lending” for the same book is performed within a predetermined time interval (here, 5 minutes).

FIG. 8 shows the offline data of the correction processing,
It is a figure showing the correction result. The offline data 801, 802, and 803 shown in FIG. 9A relate to a book material whose material ID is “NFC-03-012”. The offline data 801 is data of a return process. The offline data 802 and 803 are data of a lending process and a return process, respectively. These off-line data indicate that once the material was returned, it was rented and returned only once a minute. Therefore, the lending process and the return process performed at one-minute intervals after the first return are considered to be offline data of the erroneous process and its correction process.

FIG. 2B shows the offline data processing unit 1.
Reference numeral 2 denotes data obtained as a result of correcting the corrected data. Offline data 802 and 803 corresponding to lending due to erroneous operation and return for correction are deleted. The offline data processing unit 12 repeats the processing of steps S604 to S608, and when the processing is completed for all the offline data (S609: Yes), sends the processed offline data to the master updating unit 13 (S610).

The master updating unit 13 updates the contents of the management information master 14 according to the received optimized offline data. At this point, the offline data is sorted in the order of processing date and time for each book material, so if it is processed sequentially according to the sorted order, the management information master will be in the same order as the actual return lending process 14 will be updated. (Summary) As mentioned above,
In the book management system 1 according to the present embodiment, when the terminal goes offline, each terminal generates offline data in response to the accepted loan return processing, and transmits it to the host computer 10 after returning to the online state. The host computer 10 sorts the offline data received from each terminal for each material and in order of processing time, performs optimization corresponding to duplication processing and correction processing, and updates the contents of the management information master according to the offline data. .

Therefore, even in the offline state, it is possible to accept the loan return processing from the terminal. Also, the update process of the loan return process to the management information master performed by the host computer is performed in the order of the processing time for each book material, excluding duplication and correction, so it is as accurate as in the online state Update processing is performed. In this embodiment, the delivery of the offline data to the host computer is performed via the line after returning to the online state. However, the present invention is not limited to this method. In the case where the offline state is over a long period of time, there may be a method of recording the offline data on some recording medium such as an optical disk and carrying it manually, or sending an electronic mail with an offline data file attached.

The format of various data shown here is only an example. There are various definitions of management masters and structures of loan / return data for each library system. The configuration of the offline data may be changed according to such a difference in the data format. In addition, as for the threshold value of the time interval referred to when determining whether or not the data is the correction data, the five minutes used in the present embodiment is an example, and may be set freely according to the operation environment or the like.

Also, in the present embodiment, the terminal and the host computer are always online, and the offline state is set only when an abnormality such as a failure occurs. It is also effective in a system where it is online once a day to send and receive loan return data for the day. Further, in the present embodiment, the object of the loan return processing is the book material handled by the library, but the object of the loan return processing is not limited to this. A music CD or a video tape that can be viewed in a library, or a music CD, a video tape, a disc, or the like at a rental video store having a plurality of stores may be considered.

[0043]

As is apparent from the above description, the lending / returning system of the present invention comprises a host computer having a management information master and a plurality of terminals for receiving lending / returning processing in order to manage lending / returning of articles. Wherein the host computer is a lending return management system that updates the management information master in accordance with the lending return processing received by the plurality of terminals, wherein the plurality of terminals each receive a return lending processing. Means, and for the lending return processing received by the accepting means when in the off-line state with the host computer, off-line data for generating off-line data having at least article identification information for specifying an article to be returned and returned and processing time information Generating means, wherein the host computer generates an image generated by each of the plurality of terminals. Acquiring means for acquiring line data, and merging and sorting the offline data acquired by the acquiring means from each of the plurality of terminals according to the article identification information and the processing time information, and then having an offline having the same article identification information And a master updating unit for performing a master update based on the offline data in an order according to the processing time information for each data.

According to this configuration, at the site where goods are lent and returned, such as a library, the contents of the individual rent return processing are performed in real-time in the same order as the contents of the individual rent return processing reflected in the management information master in real time. The content will be reflected in the management information master, and you can accept lending / returning processing at the terminal even when offline,
There is no inconsistency or error in the management information master due to the loan return processing performed at the terminal during offline.

[0045] Further, when the offline data for lending or the offline data for return are consecutive in a plurality of offline data having the same article identification information, the master updating means may continue the offline data for lending or the offline data for return. Only one of the data may be subjected to the master update process. According to this configuration, even if a duplicate error in which a single loan or return is erroneously performed a plurality of times occurs in an offline state, the management information master is erroneously updated with the offline data corresponding to the duplicate error. Can be prevented.

In addition, when the difference in the processing time information between the rental offline data and the return offline data having the same article identification information is equal to or smaller than a threshold value, the master updating means determines whether or not the continuous offline data has a difference. May be excluded from the master update process. According to this configuration, the mistaken lending or return processing is corrected by performing the return or lending processing again.
Even if the correction process is performed offline,
Since the contents of the offline data generated for the correction process and the erroneous process that causes it are not reflected in the management information master, the contents of the error and the process performed for the correction are usually lent. As in the case of the return process, it is possible to prevent the situation from being reflected in the management information master.

The off-line data generating means includes:
In the case of the lending process, the item identification information, the processing time information, the offline data for lending having the user identification information, and in the case of the return process, the item identification information, the return offline data having the processing time information is generated. The master updating means,
The management master may be updated by distinguishing the offline data for lending and the offline data for returning according to the presence or absence of the user information.

According to this configuration, it is not necessary to add information indicating the distinction between lending and returning to the offline data, and the offline data for return processing does not require user identification information. The data amount can be minimized, and a large amount of offline data can be stored in the limited capacity memory held by the terminal.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of a book management system according to an embodiment of a lending return management system of the present invention.

FIG. 2 is a diagram showing a configuration of a terminal according to the embodiment.

FIG. 3 is a diagram showing a rental return processing interface screen displayed on a display connected to an interface unit in the embodiment.

FIG. 4 is a diagram showing a configuration of an offline data file according to the embodiment.

FIG. 5 is a block diagram showing a configuration of a host computer according to the embodiment.

FIG. 6 is a flowchart showing a flow of an offline data optimization process performed by an offline data processing unit in the embodiment.

FIG. 7 is a diagram showing duplicate offline data and a correction result thereof according to the embodiment;

FIG. 8 is a diagram showing off-line data of a correction process and the result of the correction in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Book management system 10 Host computer 11 Host side transmission / reception part 12 Offline data processing part 13 Master update part 14 Management information master 20 Terminal 21 Lending return processing part 211 Online processing part 212 Offline processing part 22 Interface part 23 Terminal side transmission / reception part

Claims (5)

[Claims] The present invention comprises a host computer for holding a management information master and a plurality of terminals for accepting a lending return process for managing lending / returning of an article, wherein the host computer receives the lending return received by each of the plurality of terminals. A lending return management system that updates the management information master in accordance with processing, wherein the plurality of terminals each receive a return lending process, and the receiving unit receives the lending process when the terminal is offline with the host computer. About the loan return process, at least, offline data generating means for generating offline data having article identification information and processing time information for specifying the article of the loan return target, the host computer, the host computer of the plurality of terminals Acquiring means for acquiring the off-line data respectively generated; and After merging and sorting the offline data obtained from each of the number of terminals according to the article identification information and the processing time information, the offline data is processed in the order according to the processing time information for each offline data having the same article identification information. A lending return management system, comprising: a master updating means for updating a master based on data. 2. The method according to claim 1, wherein when the plurality of off-line data having the same article identification information includes a continuous lending off-line data or a return off-line data, the off-line data for continuous lending or The lending return management system according to claim 1, wherein only one of the offline data for return is subjected to a master update process. 3. The master updating means, if the difference between the processing time information values of the rental offline data and the return offline data having the same article identification information is equal to or smaller than a threshold value, the master updating means performs the processing for the continuous offline data. Is excluded from the master update process.
Or the loan return management system described in 2. 4. The off-line data generating means outputs the item identification information, the processing time information, and the off-line data for lending having user identification information in the case of the lending process, and the item identification information and the processing time information in the case of the returning process. 5. The method according to claim 1, wherein the master update unit generates the offline data for return, and the master updating unit updates the management master by distinguishing the offline data for loan and the offline data for return based on the presence or absence of user information. 3. The lending return management system according to any one of 3. 5. A system comprising a host computer holding a management information master and a plurality of terminals receiving a lending return process for managing lending / returning of an article,
A lending return management method for updating a management information master held by the host computer according to the lending return processing received by each of the plurality of terminals, wherein each of the plurality of terminals receives a return lending, For the return lending accepted in the receiving step executed when the host computer is offline, at least the offline data having the article identification information and the processing time information for specifying the article to be rented and returned, the plurality of pieces of offline data. An offline data generating step generated by each of the terminals; an obtaining step in which the host computer obtains the offline data generated by each of the plurality of terminals in the offline data generating step; Oh obtained in A master that performs merge and sort processing of the fry data according to the material identification information and the processing time information, and then performs a master update based on the offline data in the order according to the processing time information for each of the offline data having the same material identification information. A loan return management method, comprising: an update step.