JPH044498A - Data processing system and data management method in this system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a data processing system in which a plurality of computers, each assigned a mutually related task, are connected via a line.

[Conventional technology] In department stores and large supermarkets, it is used to perform various data processing operations such as analyzing sales data for the entire store, managing productivity data of each store employee, and managing sales data for specific customers. You may be using multiple computers.

In this case, each computer generally operates independently. For this reason, each computer is provided with a data file for managing the data necessary for executing the tasks assigned to it, item by item. However, as mentioned above, when processing mutually related tasks on different computers, In some cases, the same data was managed redundantly on multiple computers.

For example, in order to analyze sales data for the entire store, it may be required to analyze sales data for each cashier (the person in charge of operating the electronic cash register), and in this case, the sales data analysis computer manages a list of store clerks in a data file. It turns out. Furthermore, if one attempts to manage data regarding a specific customer and also manage the role of the store clerk who served the customer, a computer for managing customer data will also manage a list of store clerks in a data file.

On the other hand, in a computer for managing productivity data of each store clerk, it is essential to manage a list of store clerks in a data file. Therefore, the list of clerks is managed independently in data files of multiple computers.

In this case, if there is a change in the number of clerks to be managed due to retirement, transfer, etc., it is necessary to change the list of clerks managed in the data files of each computer. However, in the past, since each computer operated independently, the list had to be corrected for each computer.

[Problems to be Solved by the Invention] As mentioned above, when a change occurs in a data item that is managed redundantly in data files of multiple computers, conventionally the data must be corrected on each computer. I had to.

This required unnecessary effort and time, resulting in poor work efficiency. Moreover, if a mistake is made in data modification operations for each computer, there is a risk that data for the same item may differ between computers.

In addition, a common data file is provided on each computer,
Connect each computer to this common data file and
The above problem can be solved by collectively managing various data items in the common data file, but in this case, the common data file has a very large capacity and the cost is undeniable.

Therefore, in the present invention, when a change occurs in a data item that is redundantly managed in data files of multiple computers, the corresponding data managed in the data file of any one computer is corrected. You can automatically correct the same data managed on other computers by simply
The present invention aims to provide a data processing system that can improve work efficiency and prevent correction errors at low cost.

[Means for Solving the Problems] The present invention has a data file for managing data necessary for executing assigned tasks by item, and performs appropriate tasks based on the data in the own data file. In a data processing system in which multiple data processing devices that execute business operations are connected via a line, when there is duplicate itemized data managed in data files of at least two data processing devices, a grouping means for setting a common group number for these duplicate itemized data; a data changing means for changing the itemized data managed in a data file of an arbitrary data processing device;
A determining means for determining whether a group number is set in the itemized data changed by the changing means, and when it is determined by this determining means that a group number is set, the data is managed in another data file. and automatic data rewriting means for rewriting the itemized data to which the group number has been set to the data changed by the data changing means.

[Operation] By taking such measures, when there is duplicate itemized data managed in the data files of at least two data processing devices, a common group number is set for these duplicate itemized data. be done. Then, when the itemized data managed in the data file of any data processing device is changed, it is determined whether a group number is set in the changed itemized data. If it is determined here that a group number has been set, the itemized data to which the group=6-number has been set, which is managed in another data file, is automatically rewritten with the changed data.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is an overall diagram of the system of this embodiment, in which three computers A, B, and C are connected online via a closed loop line.

FIG. 2 is a block diagram showing the basic configuration of computer A, in which the processor constituting the main body of the control unit is
(Central Processing Unit), ROM (Read Only Memory), etc., and controls various peripheral devices such as a keyboard 12, a display 13, a printer 14, and a card reader 15.

The communication controller 16 also controls connection and disconnection of the lines. Furthermore, RAM (random access memory) 17, information management file 18, n (≧
1) Fixed information files 191 to 19. , and processing data files 20, -20, data can be read from and written to each storage section.

It should be noted that the basic configurations of the other computers B and C are the same as in the case of FIG. 2, except that the types of peripheral devices and the number of fixed information files and processing data files may be changed as necessary, so a description thereof will be omitted.

Here, each of the computers A to C is configured with one or more processing systems in terms of software, and by appropriately executing these processing systems, the work assigned to each computer is realized. There is. That is, the fixed information file 19. ~19. ．． Program data and the like for executing each processing system are set in the processing data files 201 to 20. The corresponding fixed information files 19□ to 19. The data necessary to run the program is managed by item. Further, the information management file 18 is set with various information necessary for managing the processing systems in the computers A to C.

FIG. 3 shows processed data files 201-20. It shows the structure of the item data and the item numbers attached to each item data.
Item names and data are preset corresponding to , (number). Further, an area 30 for storing a group number set when the item data is duplicate item data managed in another data file is provided corresponding to the item number.

FIG. 4 shows the configuration of the main memory formed in the RAM 17. Each flag memory R6 to R9 is provided: second work memories R1, R2, group number memory R3, link designation counter R4, file counter R5, node flag NF, group flag GF, system flag SF, and change flag CF. . Furthermore, a link specification table RIO consisting of a system number, area 41 and an item number, area 42, and a change data buffer R11 for temporarily storing change data messages are also provided.

Therefore, the processor 11 of each computer A-C is
The program is set to execute each process shown in the flowcharts of FIGS. 5 to 12.

When the power (not shown) is first turned on, initial processing such as clearing RAM 1.7 and self-diagnosis of various peripheral devices is performed as shown in Fig. 5, and then the table of contents screen shown in Fig. 13 is displayed on the display 13. , and wait for a key input from the keyboard 12. Here, if "1. Operation" is selected by the key operator, then the system No.
transition to the processing system execution routine. That is, the processing system execution program is called from the fixed information file 19 of the corresponding system number and set in the program area of the RAM 17, and data processing is thereafter executed based on this program. At this time, necessary data is read and written to the processing data file 20 of the corresponding system number.

On the other hand, if "3. Setting" is selected manually, the link setting routines shown in FIGS. 6 to 9 are executed. That is, first, the display screen of the CRT display 13 is switched from the table of contents screen as shown in FIG. 6 to the setting screen shown in FIG. Then, wait for the next key personnel. Here, if "], own node" is selected by the key manually, the flag memory R6 is grouped with duplicate item data for the own processing data files 201 to 20n.
After resetting (O) the node flag NF of , the link setting process shown in FIG. 7 is started.

On the other hand, if "2. Other nodes" is selected manually, the processed data file 20. Since the duplicate item data for ~20fi is grouped, set the node flag NF in the flag memory R6 (1), control the communication controller 16, and connect the line with the specified computer after selecting another node. , starts the link setting process shown in FIG.

When the link setting process starts, as shown in FIG. 7, the system waits for the administrator code to be entered manually using the keys. Here, the manager code is an ID code assigned to each store clerk in advance, and the manager code of each store clerk is managed by the information management file 18. Therefore, when the administrator code is entered manually, the information management file 18 is searched to determine whether the administrator code is valid or invalid. Then, if it is valid (OK), the 8th A
If the link item designation process shown in FIG. 8 and FIG. 8B is started, or if it is invalid (NG), an error will occur. Furthermore, an error will also occur if a key other than the administrator code is entered while the key is in standby mode. Note that the error processing includes displaying an error message on the display 13 or generating an alarm sound by a buzzer (not shown), and the error state is canceled when an error cancellation instruction is issued from the keyboard 12.

When the link item designation process starts, as shown in FIG. 8A, first, the link designation table RIO is cleared, the link designation counter R4 is reset to "0", and the group flag GF and system flag S of the flag memories R7 and R8 are
After performing initial processing such as resetting F, as ST (step) 1, a key input from the keyboard 12 is waited for. Here, if the group number is input manually using the keys, the group flag GF is set, the input group number is stored in the group number memory R3, and the process returns to STI.

Further, when a print designation is instructed by a key input, the node flag NF is checked. Here, if the node flag NF has been reset, the grouping is within the own node, so the printer 14 prints out a list of the processing systems built on the own node. In this case, the processing system list data is stored in the information management file 18.
is formed. Then, return to the next STI. On the other hand, if the node flag NF is set, the grouping is for other nodes, so list data of processing systems built on other computers connected via line is received from the information management file 18 of the other computers. ,
Print it out using the printer 14. After that, ST
Return to 1.

Further, as shown in FIG. 8B, when the system number is manually input using the keys, the group flag GF is checked. Here, if the group flag GF has been reset, the system number will be set before the group number is specified.
, is input, the key input is invalidated and the process returns to STI. On the other hand, if the group flag GF has been set, the group number has already been designated, so the key input is enabled and the system flag SF is set. Next, the node flag NF is checked. Here, if the node flag NF has been reset, a list of items of the processing system of the input system No. constructed by the user is displayed on the display 13. In this case, the item list data is edited from the item number, item name, and group number stored in the processing data file 20 of the corresponding system number. On the other hand, if the node flag NF is set, the item list data of the processing system of the input system No. built in the other computer connected to the line will be received from the other computer and displayed on the display 13. Display. An example of the item list display screen is shown in FIG.

When the above item list screen is displayed on the display 13, if execution (OK) is instructed by the key manually, the input system number is stored in the first work memory R] and the display 13 is displayed. The display screen is switched from the item list display screen to the item designation screen shown in FIG. At this time, the system number on the screen and the input system number in the area
1 is displayed. Note that if a cancellation (NG) instruction is given manually with the item list screen displayed, the process returns to STI. However, in this case, since the system flag SF is already set, input of the group number and print specification cannot be performed.

Now, when the above item designation screen is displayed on the display 13, Sr1 waits for the next key input.

Here, if the item No. is input manually using the key, the input item No. is stored in the second work memory R2, and the input item No. is displayed in the item No. area of the item specification screen. let Next, when registration is instructed by the key operator, the link designation counter R4 is set to "+".
1", and the system number, area 4 of the link specification table RIO corresponding to that count value is counted up.
1 and item no.

= 15- 1st in area 42. The contents of the second work memory R1°R2 are transferred. After that, return to STI.

In this case as well, since the system flag SF has already been set, input of the group number and print specification cannot be performed.

On the other hand, if a return is instructed by the key manually in Sr1, the system number must be input again, so immediately go to ST.
Return to I. However, in this case as well, input of the group number and print specification cannot be performed.

Further, if termination is instructed by key input in STI or S2, the link item designation process is terminated.

Note that if the count value of the link designation counter R4 matches the number of tables in the link designation table RIO, the registration is over, and the link item designation process ends.

When the above link item designation process is completed, as shown in FIG. 7, a keystroke from the keyboard 12 is awaited. here,
When an instruction to set link item data is given by a key operator, the writing process shown in FIG. 9 is executed. That is,
First, one set of the first stored system number and item number is extracted from the link specifier RIO. Next, check the node flag NF. Here, if the node flag NF has been reset, its own corresponding system number.

The processing data file 20 of is opened. Then, the group number stored in the group number memory R3 is written in the group area 30 corresponding to the corresponding item number, and the file 20 is closed. On the other hand, if the node flag NF is set, the corresponding system No.
The processing data file 20 of , is opened. Then, the group number stored in the group number memory R3 is written in the group area 30 corresponding to the corresponding item number, and then the file 20 is closed. After that, the link designation counter R4 is counted down by "-1", and one set of the next stored system number and item number is taken out from the link designation table RIO.
Repeat the same process as above. Then, when the link designation counter R4 reaches "0", the write process ends.

When the above writing process is completed, as shown in FIG. 7, a key input from the keyboard 12 is awaited. Here, when a return instruction is given by the key manually, the link item designation process shown in FIGS. 8A and 8B is started again. On the other hand, if an instruction to end the process is given manually, the link setting process ends. After that, as shown in FIG. 6, in the case of own node setting (node flag NF=O), the screen returns to the setting screen shown in FIG. 14, and in the case of other node setting (node flag NF=1), After cutting the wire, the display returns to the setting screen shown in FIG. 14. Then, when the end is instructed by the key manually, the screen returns to the table of contents screen shown in FIG. 13.

In FIG. 7, after the link item designation process is completed, if an instruction to end the process is given manually, the link setting process is ended without performing the write process.

Further, when a return instruction is given by the manual key, the system enters a state of waiting for input of the administrator code again. (The above is the grouping means) On the other hand, when "2. Change" is selected on the table of contents screen, the data rewriting routines shown in FIGS. 10 to 12 are executed. That is, first, as shown in FIG. 10, the display screen of the CRT display 13 is changed from the table of contents screen to the
Switch to the rewrite screen shown in Figure 7. Then, wait for the next key personnel. Here, if "1. own node" is selected by the key manually, the own processing data file 20.
Since the data is rewritten for ~20°, the node flag N
After resetting F, data rewriting processing shown in FIGS. 11A and 11B is started.

On the other hand, if "2. Other nodes" is selected manually, the processed data file 20. ~20. ．． Since the data is to be rewritten, the node flag NF is set, the communication controller 16 is controlled to connect the line with the specified computer after selecting another node, and then the data rewriting shown in FIGS. 11A and 11B is performed. Start processing.

When the data rewriting process starts, as shown in FIG. 11A, initial processing such as clearing the change data buffer R11 and resetting the group flag GF, system flag SF, and change flag CF in the flag memories R7 to R9 is performed. After doing so, wait for the administrator code to be entered manually using the keys on the keyboard 12. When the administrator code is entered manually, the information management file 18 is searched to determine whether the administrator code is valid or invalid, and if it is valid (OK), the display screen of the display 13 is displayed. is switched to the change instruction screen shown in FIG. On the other hand, if the administrator code is invalid (NG) or if a key other than the administrator code is entered manually, an error will occur.

With the change instruction screen displayed on display 13,
When the system number is entered manually, the system flag SF is set and then the node flag NF is checked. Here, if the node flag NF has been reset, the list of items for the processing system of the input system No. built in the self will be displayed on the display 1 as shown in FIG.
Display on 3. On the other hand, if the node flag NF is set, the item list data of the processing system of the input system No. built on the other computer connected to the line will be received from the other computer, and the display will be displayed in the same way. 13. In this state, if execution (OK) is instructed manually by the key, the input system number is stored in the first work memory R1, and the display screen of the display 13 is changed from the item list display screen to the change instruction. Return to screen. At this time, the input system number is displayed in the system number area on the screen. Note that you can manually cancel (N) with the item list screen displayed.
When G) is instructed, the system flag SF is reset and the display screen of the display 13 is returned from the item list display screen to the change instruction screen. At this time, the input system number is not displayed in the system number area on the screen.

Further, when an item No. is inputted manually with the change instruction screen displayed on the display 13, the state of the system flag SF is checked. At this point, if the system flag SF has been reset, the system number is not set, so the input of the item number is invalidated.

On the other hand, if the system flag SF is set, the process advances to FIG. 11B. That is, if the item No. is input manually using the keys, the input item No. is stored in the second work memory R2. Also, check the node flag NF. Here, if the node flag NF has been reset, its own input system No.
The processing data file 20 of is opened, and the data corresponding to the input item No. of the file 20 is read and displayed on the display 13. On the other hand, if the node flag NF is set, the processing data file 20 of the input system No. in another computer connected to the line is opened, and the data corresponding to the input item No. of that file 20 is received. and display it on the display 13.

After that, we will wait for key personnel as ST3. Here, when a change in the display data is instructed by key human power, the change flag CF is set, the display data is corrected based on the change data, and the corrected data is stored in the change data buffer R11. save. After that, the process returns to Sr1.

Also, when termination is instructed by key human power in Sr1,
Input item No. of the opened processing data file 20,
The data in the modified data buffer R11 is written to the data area corresponding to the file, and the file is closed.

Therefore, in the case of changing another node (node flag NF=1), input system No. 1, input item No., and change data buffer R11 are sent to the computer connected to the line.
The computer that receives the data writes the received data into the data area corresponding to the input item number in the processing data file 20 of the system number. (that's all,
Data change means) Then, check the change flag CF. Then, if the change flag CF was set, data 2 read from the opened processing data file 20 was changed, so
The group number and area 30 corresponding to the input item number of the file 20 are checked (determination means). Here, if a group number is set in the area 30, the item data of the input item number is duplicate item data, so the group flag GF is set and the set group number is set. Read and store in group number memory R3. Thus, this data rewriting process ends.

On the other hand, if the change flag CF has been reset, and if the group number corresponding to the input item number of the opened processing data file 20 and the group number are not set in the area 30, the group flag G
F is reset and this data rewriting process is completed.

Note that if a return instruction is given manually at Sr1, the system flag SF is reset and then the display returns to the change instruction screen.

When the above data rewriting process is completed, as shown in FIG. 10, in the case of own node change (node flag NF = 0), the process immediately shifts to the automatic link rewriting process shown in FIG. 12, and other node change (node flag In the case of NF-1), after the line is disconnected, the process proceeds to the automatic link rewriting process described above.

When the automatic link rewriting process is started, the group flag GF is first checked, as shown in FIG.

Here, if the group flag GF has been reset, data other than the duplicate item data has been changed, so this process is immediately terminated.

On the other hand, if the group flag GF is set, the duplicate item data has been changed, so the changed data message is edited. This message contains group number memory R.
The group number in 3 and the changed data in the changed data buffer R11 are incorporated. Then, it controls the communication controller 16 to sequentially connect lines to all other computers, and transmits the change data message to all other computers.

Also, the file counter R5 is initialized to "1".

Then, the processing data file 20 of the system number corresponding to the current value of the file counter R5 is opened, and the group number and area 30 of the file 20 is searched using the group number in the group number memory R3 as a key. Then, the group number of the file 20,
If the same group number is set in the area 30, the contents of the corresponding data area are rewritten to the data stored in the changed data buffer R11.

Thereafter, the file counter R5 is counted up by "+1", the processing data file 20 of the next system number is opened, and the group number is checked. On the other hand, if the group number of the opened file 20 and the same group number as the group number in the group number memory R3 are not set in the area 30, the above file counter R5 is immediately counted by "+1". Then, the processing data file 20 of the next system number is opened, and the group number is checked.

In this way, if the count value of the file counter R5 exceeds the number n of processing data files provided in the computer, all the processing data files 20
Since the group number for the link has been checked, this automatic link rewriting process ends.

On the other hand, upon receiving the change data message from another computer, the processor 11 sets the file counter R5 to "1".
” and executes the same process as the automatic link rewriting process described above (see FIG. 12). That is, the system number corresponding to the count value of this file counter R5,
Open the processing data file 20 of , and use the group number in the message as a key to select the group number of the file 20.
, search area 30. Then, if the group number of the file 20 and the same group number are set in the area 30, the contents of the corresponding data area are rewritten to the data in the message. Thereafter, the file counter R5 is counted up by "+1", the processing data file 20 of the next system number is opened, and the group number is changed. On the other hand, if the group number of the opened file 20 and the same group number as the group number in the group number memory R3 are not set in the area 30, the file counter R5 is immediately counted by "+1". Then, the processing data file 20 of the next system number is opened, and the group number is checked. Then, if the count value of the file counter R5 exceeds the number n of processing data files provided in the computer, this processing is terminated because the group numbers for all processing data files 20 have been checked. .

(Above, data automatic rewriting means) When the above-mentioned automatic link rewriting processing is completed, the rewriting screen is displayed on the display 13 again as shown in FIG. Then, when the end is instructed by the key manually, the display returns to the table of contents screen.

Next, the effects of this embodiment configured as described above will be explained. For convenience of explanation, let us assume that computer A is used to manage productivity data for each store employee, computer B is used to analyze sales data for the entire store, and computer C is used to manage sales data for specific customers. For example, each computer A-C
Assume that the list of store clerks is managed in duplicate.

In this case, the operator needs to use any one computer to group the store clerk list, which is duplicate item data. For example, if you try to perform the grouping using computer A, first select "3. Settings" on the table of contents screen, and then select "1. Own node" on the settings screen. Next, enter your own administrator code. If use of the computer A is thus permitted, key any group number. Here, for example, if you manually key the group No. =rlJ, the group No. -rlJ becomes the group No.
It is stored in memory R3. Next, key the system number of the processing system that manages the list of clerks. Then, the processing data file 2 of the system No.
Since a list of data items managed in 0 is displayed, once it is confirmed that a list of store clerks is being managed, key the item No. of the list. As a result, the link specification table R10 includes the input system No.
and input item number are stored.

Next, the operator determines whether another processing system of computer A is also managing a list of store clerks. If managed, the corresponding system number and item number are manually entered in sequence in the same manner as above. By doing this, the link designation counter R1 contains the system number of the processing system that manages the list of store clerks among the processing systems set on computer A, and the items assigned to the list for each processing system. No.

will be remembered.

Thereafter, the operator causes the writing process to be executed.

Then, the system number and item number stored in the link designation counter RIO are read out in sequence, and each time the group number area 30 corresponding to the corresponding item number of the corresponding processing data file 20 provided in the computer A is read out. The group number "1" in the group number memory R3 is written into the group number memory R3.

When link setting for the own node is completed, the operator selects link setting for another node on the setting screen, and first specifies computer B as the other node. Then, since computers A and B are connected by a line, the operator selects the system that manages the list of clerks from among the processing systems of computer B in the same way as when setting up the own node. , the corresponding system number, and item number in sequence. By doing this, the link specification counter RIO contains the system No. 1 of the processing system that manages the list of store clerks among the processing systems set in computer B, the item number assigned to the list for each processing system, will be remembered. The operator then executes the write process. Then, the system number stored in the link designation counter RIO.

and item No. are read out sequentially, and are notified to computer B via the line each time.
Applicable item N of the applicable processing data file 20 provided in
The group number "]" in the group number memory R3 is written into the group number area 30 corresponding to o.

Thereafter, the operator performs other node link setting processing for computer C in the same manner. By doing this, the group in the group number memory R3 is stored in the group number area 30 corresponding to the corresponding item No. of the processing data file 20 for the processing system that manages the list of clerks among the processing systems set in the computer C. The number "1" is written.

Through the above link setting process, the group number area 30 corresponding to the corresponding item number of the processing data file 20 for the processing system that manages the list of store clerks among the processing systems set on each computer A to C is This means that a common group number "1" has been written.

Note that the link setting process may be performed to group duplicate item data that exists only in the own node. It is also possible to group duplicate item data that exists only in other computers from any computer.

If there is a subsequent change in the number of store employees to be managed due to retirement, transfer, etc., it will be necessary to change the list of store clerks managed in the data files of each computer. At this time, the operator uses computer A, for example, to modify the list.

In other words, the operator selects "2. Change" on the table of contents screen.
, and then select "1. Own node" on the rewrite screen. Next, enter your own administrator code. When the computer A is permitted to be used and a change instruction screen is displayed, the system number of the processing system that manages the list of clerks is entered manually. Then, a list of data items managed in the processing data file 20 of the system number will be displayed, so once you have confirmed that the list of clerks is managed, the item number of the list will be displayed. The key is human power.

As a result, data corresponding to the input item No. stored in the processing data file 2o is displayed on the display 13.

The operator then operates the keyboard 112 to modify the displayed data. Then, the modified data is stored in the modified data buffer R1l. After that, when the modification work is completed, the data in the changed data buffer R11 is written into the data area corresponding to the input item No. of the processed data file 20. In other words, the list of clerks has been revised.

At this time, the input item No. of the processing data file 2o
, the group number corresponding to the area, the group number corresponding to the area,
Since rlJ is set, it is determined that the corresponding item data, that is, the list of clerks, is duplicate item data.

As a result, automatic link rewriting processing is executed. That is, first, a change data message is sent to the other computers B and C. This changed data message includes the group number and rlJ set in the duplicate item data and the changed data. As a result, in the other computers B and C, among the itemized data managed in each processing data file 20, the itemized data with the corresponding group number, so-called list of clerks, are collectively revised. It can be rewritten into a list.

Further, in the computer A as well, the itemized data to which the group No. is attached is extracted from the itemized data managed in each processing data file 20 and rewritten in the same manner.

For example, by selecting "2. Change" on the table of contents screen of computer A, and then selecting "2. Other nodes" on the rewriting screen, you can change the list by item managed on another computer B or C. Data can also be changed. At this time, if the itemized data is duplicate item data, the duplicate item data is automatically corrected in the same manner as described above.

As described above, according to this embodiment, by grouping the duplicate item data that is independently managed in the processing data file of each computer by assigning a common group number, the duplicate items can be sorted. When data is changed on any computer, not only the duplicate data managed on that computer but also the duplicate data managed on other computers will be automatically changed all at once. become. Therefore, it is no longer necessary to perform similar data modification operations for each computer as in the past, and desired data can be changed in a short time without wasting time and effort. Moreover, since the duplicate data to be changed is automatically changed all at once, there is no problem where the same item data differs between computers due to a modification error.

Furthermore, since there is no need to provide a common data file for each computer, there is also the advantage that it can be realized relatively inexpensively.

In addition, in the above embodiment, three computers were used, but two computers were used.
Needless to say, the present invention can be applied to a system of four or more units.

[Effects of the Invention] As detailed above, according to the present invention, when a change occurs in a data item that is redundantly managed in data files of multiple computers, the We provide a data processing system that can automatically modify the same data managed on other computers by simply modifying the corresponding data managed in one data file, improving work efficiency and preventing modification mistakes at low cost. can.

[Brief explanation of drawings]

The figures are diagrams showing an embodiment of the present invention, in which Fig. 1 is an overall configuration diagram of the system, Fig. 2 is a block diagram showing the basic configuration of a computer, and Fig. 3 is a configuration diagram of a processed data file. Figure 4 is a diagram showing the main memory configuration of the RAM, Figure 5 is a flowchart showing the main routine, Figures 6 to 9 are flowcharts showing the link setting routine, and Figures 10 to 12 are the data rewriting routine. 13 to 18 are diagrams showing examples of display screens at main timings on the display. A-C...Computer, L...Line, 11...
Processor, 16... Communication controller, 17...
RAM. 18... Information management file, 19, to 19n... Fixed information file, 201 to 20. ...Processing data file, 30...Group No., area, R10...
Link specification table, R11... Change data buffer. Applicant's agent Patent attorney Takehiko Suzue r-t＼

Claims (1)

[Scope of Claims] A plurality of machines each having a data file for managing data required for each item in executing the assigned business, and each machine executes the corresponding business based on the data in its own data file. In a data processing system in which data processing devices are connected via a line, when there is duplicate itemized data managed in the data files of at least two data processing devices, these duplicate itemized data have a common a grouping means for setting a group number for the data, a data changing means for changing itemized data managed in a data file of an arbitrary data processing device, and a grouping means for changing the itemized data changed by the changing means A determination means for determining whether or not a group number is set by means of the determination means, and when it is determined by this determination means that a group number is set, an item to which the group number is set managed in another data file is determined. A data processing system comprising: automatic data rewriting means for rewriting different data to data changed by the data changing means.