JP7022566B2 - History management system, history management program - Google Patents

Description

The present invention relates to a history management system and a history management program.

There is information that will be updated, for example, a transfer of land registration. On the other hand, there are cases where it is necessary to refer to the information (history) before the update when making any reports or investigations. Historical data is being saved for reference to this pre-update information.

Patent Document 1 discloses a data conversion system for incorporating CSV-format registered notification data created by a registry office into a system.

Japanese Unexamined Patent Publication No. 2010-218433

For example, there are objects that are actively divided and integrated, such as land and corporate organizations. Generally, it is identified by the ID given to the object itself, but in the case of an object that is divided or integrated, it is necessary to give different IDs to the current object and the past object that is the source of the current object. The relationship between the current information and the past information cannot be understood only by storing the history information in association with the ID, and the past transfer history information cannot be easily grasped. In the first place, since the history information is not managed by the method described in Patent Document 1, it is difficult to confirm the history many generations ago.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a history management system and a history management program capable of surely grasping the past of information of an object to be divided or integrated. It is in.

(1) An instruction acquisition means for designating one or a plurality of old objects and acquiring an instruction to generate one or a plurality of new objects by integrating or dividing the one or a plurality of old objects, and object information indicating the objects. , A storage that stores a plurality of records including a first identification information that is information for identifying an instruction for generating the object as the new object, and a second identification information for identifying an instruction for designating the object as the old object. A record including means, object information indicating an object generated as the new object when the instruction is acquired, and first identification information in which information for identifying the instruction is set is newly stored. A record updating means for setting information for identifying the instruction in the second identification information of a record including object information indicating an object designated as the old object by the instruction, and one of the plurality of records. When one is selected, the same information as the first or second identification information included in the selected record is searched for the record set as the second or first identification information, and the searched record is searched. A history management system that includes a history search method that outputs information based on.

(2) In (1), when the instruction is acquired, the record updating means has information indicating the new object, first identification information in which information for identifying the instruction is set, and a predetermined value. A new record including the second identification information in which is set is generated and stored in the storage means, and the instruction is given to the second identification information of the record including the information indicating the old object in the instruction as the object information. A history management system that sets the information to be identified.

(3) In (1) or (2), the object is a land, the object information includes a lot number of the land, and the instruction includes a land division or combination event, a history management system.

(4) Instruction acquisition means for designating one or a plurality of old objects and acquiring an instruction to generate one or a plurality of new objects by integrating or dividing the one or a plurality of old objects, object information indicating an object, and A storage means for storing a plurality of records including a first identification information which is information for identifying an instruction for generating the object as the new object and a second identification information for identifying an instruction for designating the object as the old object. , A record including object information indicating an object generated as the new object and first identification information in which information for identifying the instruction is set when the instruction is acquired is newly stored in the storage means. A record update means for storing and setting information for identifying the instruction in the second identification information of the record including the object information indicating the object designated as the old object by the instruction, and one of the plurality of records. When selected, the same information as the first or second identification information included in the selected record is searched for the record set as the second or first identification information, and the searched record is used. A program to make a computer function as a history search means that outputs information based on it.

It is a figure which shows the hardware configuration of the transfer information management system which concerns on embodiment of this invention. It is a block diagram which shows the function which constitutes the transfer information management system. It is a figure explaining the example of the combination writing and the division writing. It is a flow diagram which shows the outline of the input process of the transfer information management system. It is a figure which shows an example of the screen which inputs the transfer information. It is a figure which shows an example of the information stored in the trigger information table. It is a figure which shows an example of the information stored in a land information table. It is a figure which shows an example of the change of the information stored in a land information table. It is a figure which shows an example of the change of the information stored in a land information table. It is a figure which shows an example of the change of the information stored in a land information table. It is a figure which shows an example of the change of the information stored in a land information table. It is a figure which shows an example of the change of the information stored in a land information table. It is a flow chart which shows the outline of the browsing process of land information. It is a figure which shows an example of the land information display screen. It is a flow chart which shows the history browsing process of land information. It is a figure which shows an example of the history browsing screen. It is a figure which shows an example of an organization opportunity table. It is a figure which shows an example of the organization table.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Among the components that appear, those having the same function are designated by the same reference numerals, and the description thereof will be omitted. In the following, as a system for managing history, a transfer information management system in which the management target is land and the data to be handled is land registration information will be described.

FIG. 1 is a diagram showing a hardware configuration of a transfer information management system according to an embodiment of the present invention. The transfer information management system includes a server 1 and a client device 2. The server 1 is a server computer, and includes a processor 11, a storage unit 12, a communication unit 13, and an input / output unit 14. The server 1 executes a program of a relational database management system (RDBMS), and searches, updates, and adds data in response to a request from the client device 2.

The client device 2 is, for example, a personal computer, and includes a processor 21, a storage unit 22, a communication unit 23, and an input / output unit 24. The client device 2 sends a request based on the information input by the user to the server 1, receives a response from the server 1, and controls the display output device to display an image corresponding to the response.

The processors 11 and 21 operate according to the programs stored in the storage units 12 and 22, respectively. Further, the processors 11 and 21 control the communication units 13 and 23, respectively, and control the devices connected to the input / output units 14 and 24, respectively. The above program may be provided via the Internet or the like, or may be stored and provided in a computer-readable storage medium such as a flash memory or a DVD-ROM. ..

The storage units 12 and 22 are composed of memory elements such as RAM and flash memory and a hard disk drive. The storage units 12 and 22 store the above program. Further, the storage units 12 and 22 store information and calculation results input from each unit.

The communication units 13 and 23 realize a function of communicating with other devices, and are configured by, for example, an integrated circuit of a wired LAN. The communication units 13 and 23 transmit and receive information to and from other devices based on the control of the processors 11 and 21, respectively. Further, the communication units 13 and 23 input the received information to the processors 11 and 21 and the storage units 12 and 22. The communication unit 13 and the communication unit 23 are connected by, for example, a LAN.

The input / output units 14 and 24 are composed of a video controller that controls a display output device, a controller that acquires data from the input device, and the like. Input devices include keyboards, mice, touch panels, and the like. The input / output units 14 and 24 output display data to the display output device based on the control of the processors 11 and 21, respectively, and acquire the data input by the user operating the input device. The display output device is, for example, a display device connected to the outside.

Next, the functions and processes realized by the history management system according to the embodiment of the present invention will be described. FIG. 2 is a block diagram showing functions constituting the transfer information management system. The transfer information management system functionally includes a transfer information acquisition unit 51, an information change unit 52, a latest information search unit 56, a history information search unit 57, an opportunity information table 61, and a land information table 62. The information change unit 52 includes an opportunity information addition unit 53 and a land information change unit 54.

The trigger information table 61 and the land information table 62 are realized by the processor 11 of the server 1 executing the RDBMS program stored in the storage unit 12. The substance of the data of the opportunity information table 61 and the land information table 62 is stored in the storage unit 12. The transfer information acquisition unit 51, the information change unit 52, the latest information search unit 56, and the history information search unit 57 execute the program stored in the storage unit 22 by the processor 21 of the client device 2, and the communication unit 23, if necessary. And by controlling the input / output unit 24. The transfer information acquisition unit 51, the information change unit 52, the latest information search unit 56, and the history information search unit 57 may be realized by the server 1 executing a program. For example, a part of the processing of the information changing unit 52, the latest information retrieval unit 56, and the history information retrieval unit 57 may be realized by executing the stored procedure stored in the server 1 via the RDBMS, or the server 1 may be realized. Executes a program that realizes the functions of the transfer information acquisition unit 51, the information change unit 52, the latest information search unit 56, and the history information search unit 57, and exchanges the input data and display data with the browser program of the client device 2. May be good. Hereinafter, it is assumed that the client device 2 processes the transfer information acquisition unit 51, the information change unit 52, the latest information search unit 56, and the history information search unit 57.

The trigger information table 61 stores instruction information (trigger information) regarding the land (object) to be managed. The instruction information is the information of the instruction according to the event of the land transfer. The land information table 62 stores land information which is information about land. In the record of the land information table 62, the land information, the pre-trigger ID (first identification information), and the post-trigger ID (second identification information) are stored. Land information includes the ward, city, town, and village where the land is located, large letters and letters, lot number, land area (area), and owner. The lot number is information that uniquely identifies the land within the current land having the same ward, city, town, letter, and letter. The ground is information indicating the use of the land. The pre-trigger ID and the post-trigger ID will be described later.

The transfer information acquisition unit 51 acquires transfer information indicating a change in the land to be managed. Transfer information is information that indicates changes in land ownership. The transfer information has been modified to indicate that there was a land division (division) or combination (integration) event, information that there was a land acquisition or sale event, and a land area (land area) event. Contains any of the information indicating that.

A land merge (integration) or split (split) event can specify one or more unaltered lands (old objects) and one or more by merging or splitting one or more unaltered lands. It creates the changed land (new object). FIG. 3 is a diagram illustrating an example of combined writing and split writing. Each of the boxes shown in FIG. 3 corresponds to a land, and the character string written in the box indicates the lot number of the land. In the example of Figure 3, three adjacent lands with lot numbers 17-1, 17-6, and 20-2, respectively, were merged into one land with lot number 17-1 by joint writing, and joint writing. It shows that the lot number 17-1 created by the lot number was divided into four lots with lot numbers 17-1, 17-6, 17-7, and 17-8, respectively. In this case, for example, the lot number 17-1 appears in FIG. 3 before and after the division, but the meaning may be completely different depending on the method of division.

The information changing unit 52 associates the land information about one or more lands before the change stored in the land information table 62 with the transfer information, generates new land information based on the transfer information, and generates new land information. Store it in association with transfer information. More specifically, the trigger information addition unit 53 assigns a trigger ID as identification information for identifying the trigger information to the trigger information, and adds a record including the trigger information and the trigger ID to the trigger information table 61. .. Here, the opportunity information is at least a part of the transfer information, and the transfer information is, for example, the opportunity information, the information indicating the latest land information before the update, the changed part of the land information, and the new land information after the update. And include. Since the trigger information and the transfer information have a one-to-one correspondence, the transfer information is also identified by the trigger ID. The land information changing unit 54 sets the trigger ID in the post-trigger ID of the record including the land information of the land before the change stored in the land information table 62, and together with the land information generated for the land after the change due to the transfer information. , A new record including the previous trigger ID in which the trigger ID is set is added to the land information table 62. The pre-trigger ID is the identification information of the trigger information corresponding to the event in which the land indicated by this land information is generated as the land after the change, and the post-trigger ID is the event in which the land indicated by the land information is designated as the land before the change. Therefore, it is the identification information of the trigger information corresponding to the event in which the land information of the next generation of this land information is generated.

The latest information retrieval unit 56 acquires land information (records stored in the land information table 62) from the land information table 62, and causes the display output device to output the acquired information.

The history information search unit 57 acquires information indicating transfer information associated with the land information acquired by the latest information search unit 56 and triggers the generation of the land information, and the previous generation associated with the transfer information. Get the land information of. More specifically, the history information search unit 57 acquires a record of land information including a post-trigger ID in which the same value as the pre-trigger ID included in the land information record acquired by the latest information search unit 56 is set. do. Further, the acquired history information retrieval unit 57 outputs the acquired information, and displays the information on the display output device.

In the following, the processing of the transfer information management system will be described in more detail. FIG. 4 is a flow chart showing an outline of the input processing of the transfer information management system, and is a diagram mainly explaining the processing for realizing the functions of the transfer information acquisition unit 51 and the information change unit 52.

First, the transfer information acquisition unit 51 acquires the transfer information input by the user (step S101). The transfer information includes information indicating the latest land information before the update, the changed part of the land information, and the updated data.

FIG. 5 is a diagram showing an example of a screen for inputting transfer information. The example of FIG. 5 is a screen for inputting transfer information for dividing the land. In the example of FIG. 5, regarding the change of the land to be divided, which is shown in the change target display unit 42, the trigger information input unit is the information indicating the event that triggered the user to input the change information. It is input to 41, and the land information of the land after the division is input to the change content input unit 43. The land shape of the land to be divided is displayed in the map column 35, and the user also inputs the changed land shape (map information).

When the confirmation button 47 is pressed, the transfer information acquisition unit 51 acquires transfer information including information on the opportunity, the land ID of the land information to be changed, and the lot number, area, and shape of the land after the division. do. Further, in the case of land combination, the transfer information acquisition unit 51 includes the opportunity information, the land ID of a plurality of land information to be changed, and the transfer information including the lot number, area, and shape information of the land after the combination. To get. In the case of a change in items such as land owner and area, the transfer information acquisition unit 51 obtains the transfer information including the opportunity information, the land ID of the land information to be changed, and the changed value of the changed item. get.

When the transfer information is acquired, the trigger information addition unit 53 included in the information change unit 52 assigns the trigger ID, which is the identification information, to the trigger information which is a part of the transfer information, and the trigger ID and the trigger are added to the trigger information table. A record including information is newly stored (step S102).

FIG. 6 is a diagram showing an example of information stored in the trigger information table 61. In the opportunity information table 61, a record including the opportunity ID, the transfer type as the opportunity information, the registration acceptance date, the business name, the approval date, the approval number, the contract date, the amount, and the opportunity information including the person in charge is registered. There is. The registration acceptance date is the date on which the land was transferred as indicated by the opportunity information. The division registration in the transfer type indicates that the transfer is for the land division, the combination registration indicates that the transfer is for the land combination, and the land area correction registration is the transfer for the land area correction. Is shown. It is assumed that the transfers corresponding to the records in FIG. 6 occur in order from the top.

Next, the land information changing unit 54 included in the information changing unit 52 newly stores the land information record in which the trigger ID of the trigger information is set in the previous trigger ID in the land information table 62 (step S103). Then, the land information changing unit 54 sets the trigger ID in the post-trigger ID included in the record of the land information before the change indicated by the transfer information (step S104).

FIG. 7 is a diagram showing an example of information stored in the land information table 62. The land information table 62 stores one or more records of land information including a land ID, a ward / city / town / village, a large character, a character, a lot number, a lot number, a land area, an owner, a pre-trigger ID, and a post-trigger ID. The land information may include other information related to land registration. For example, the land information may include information such as map information and remarks showing the topography of the land. The land information change unit 54 acquires the land information before the change from the record of the land information to be changed indicated by the change information, reflects the change due to the change information, and reflects the change of one or more land information. The record is newly stored in the land information table 62. The land information changing unit 54 updates the post-trigger ID of the land information record before the change, but does not delete the land information record itself. Further, the processes of steps S103 and S104 may be performed in the reverse order, or the process of storing the record in the trigger information table among the processes of step S102 may be performed after step S103 or step S104. In the latter case, the processes of steps S102 to S104 may be processed as a series of transactions.

When the processing of step S102 is completed from step S102, the information changing unit 52 outputs the result of the change of the land information or the like based on the transfer information to the display output device (step S105).

Hereinafter, specific examples of addition / update of data in the land information table 62 will be further described. 8A to 8E are diagrams showing an example of changes in the information stored in the land information table. 8A to 8E show, in order, an example of a land transfer according to the opportunity information shown in FIG. 6 with respect to the land information table 62 shown in FIG. 7. 8A to 8E show only the records that have been added or changed among the records stored in the land information table 62, and the changed or added parts are surrounded by the alternate long and short dash line.

FIG. 8A shows an example in which the land division registration is performed for the trigger information of the trigger ID 10 in the trigger information table 61. As can be seen from FIG. 8A, in the case of division registration, the land information changing unit 54 registers this division in the post-trigger ID of the land information record (record with a land ID of 1000) that is the source of the division. The trigger ID (10) of the trigger information is set, and a plurality of land information records (records having land IDs 1001 to 1004) indicating the divided lands are added.

Here, the land information changing unit 54 sets 0 as an initial value in the post-trigger ID of the record of the land information to be added. In RDBMS, generally, when a null is set for an item and an index of a B-tree is set for the item, the index cannot be used when searching for a record in which the null is set for the item. By setting 0 for the post-trigger ID instead of NULL and creating an index for the post-trigger ID, the latest land information can be searched at high speed. Of course, the land information changing unit 54 may set another fixed value that does not overlap with the trigger ID as the initial value of the trigger ID instead of 0.

FIG. 8B shows an example in which land registration is performed for the trigger information of the trigger ID 11 in the trigger information table 61. As can be seen from FIG. 8B, in the case of combined writing registration, the land information changing unit 54 is after the land information records (records with land IDs 1004, 1010, 1011) of a plurality of lands that are the source of the combined writing. The trigger ID (11) of the trigger information that triggers the registration of the combined writing of the land information is set in the trigger ID, and the land information record (record of the land ID 1015) indicating the combined land is added.

FIG. 8C shows an example in which land is acquired for the trigger information of the trigger ID 12 in the trigger information table 61. In the example of FIG. 8C, the previous information of the acquired land is out of the control, and the land information changing unit 54 adds a record of the land information indicating the acquired land.

FIG. 8D shows an example in which the land was sold with respect to the trigger information of the trigger ID 13 in the trigger information table 61. In the example of FIG. 8D, the land after sale is not subject to management, and the land information change unit 54 serves as a trigger ID for the land information record (records with land IDs of 1020, 1003, 1025) of the land to be sold. The trigger ID (13) of the trigger information that triggers the sale is set, and a new land information record is not added.

FIG. 8E shows an example in which the land area of the land is corrected with respect to the trigger information of the trigger ID 14 in the trigger information table 61. As can be seen from the description in FIG. 8E, when the land attribute (here, the land area) is modified, the land information changing unit 54 is the record of the land information of the land to be modified (the record whose land ID is 1015). The trigger ID (14) of the trigger information that triggers the correction is set in the post-trigger ID, the modified value is set in the item of the land area to be modified, and the value of the record of the land information before the modification is set in the other items. Add a record of land information (record with land ID 1030) for which is set.

In this way, while keeping the past records of the land information, by associating each record of the land information with the transfer trigger information for generating the land information and the transfer trigger information for making the land information past. For example, even if the land information of one generation and the land information of the next generation can have a many-to-many relationship due to repeated division and writing, the situation of the current land information many generations ago is changed. It is possible to search reliably with the information that triggered the above.

Hereinafter, the details of the process of browsing the information stored in the opportunity information table 61 and the land information table 62 will be described. FIG. 9 is a flow chart showing an outline of the land information browsing process, and shows a process in which the latest information retrieval unit 56 displays a list of the latest land information on the display output device.

First, the latest information search unit 56 acquires a record in which the initial value 0 is set in the post-trigger ID from the land information table 62 (step S201). Further, the latest information search unit 56 may acquire a record that satisfies the search conditions of other items such as wards, cities, towns and villages, and has the initial value 0 set in the post-trigger ID. Then, when the record is acquired, the latest information retrieval unit 56 causes the display output device to display the list of the acquired one or a plurality of records (step S202).

FIG. 10 is a diagram showing an example of a land information display screen. With respect to FIG. 10, the latest information search unit 56 causes the list display unit 31 to display a list of land information of acquired records. Further, when one of the land information displayed in the list display unit 31 is selected as in the selected line 32, the latest information search unit 56 displays the topography of the land information in the map field 35, and the movement history. It is possible to press the button 36, the division button 37, and the like. When the division button 37 is pressed, the screen can be changed from the land information display screen to the screen for changing the land information, such as the transition to the screen shown in FIG. When the transfer history button 36 is pressed, the history information search unit 57 performs the process described below for the selected land information.

FIG. 11 is a flow chart showing an outline of the history browsing process of land information, and shows a process of displaying the past land information of the selected land information on the display output device by the history information search unit 57.

First, the history information search unit 57 acquires the previous opportunity ID from the record of the land information selected as the target for displaying the history (step S251).

Next, the history information search unit 57 acquires one or a plurality of records in which the same value as the previous trigger ID acquired in step S251 is set in the post trigger ID from the land information table 62 (step S252). .. Then, the history information search unit 57 outputs a list of the selected land information and the land information one generation before the selected land information to the display output device based on the record of the acquired land information table 62. (Step S253).

Further, the history information search unit 57 acquires the pre-trigger ID of the record of the land information selected from the land information listed in step S253. Further, the history information search unit 57 acquires a record (trigger information) in which the same value as the acquired previous trigger ID is set in the trigger ID item from the trigger information table 61, and acquires it from the land information table 62. The record in which the same value as the previous trigger ID is set in the previous trigger ID or the latter trigger ID is acquired (step S254). Then, based on the data included in the record of the acquired land information table 62 and the record of the acquired opportunity information table 61, the display output device is made to output the transfer information related to the selected land information (step S255). The process of step S254 is a process for displaying the history of land information together with the opportunity information. The processes of steps S251 to S255 may be processed each time the land information displayed as the history is selected, or may be executed recursively.

FIG. 12 is a diagram showing an example of a history viewing screen. The history information search unit 57 causes the history list display unit 75 to display a list of the land information selected as the target and the land information one generation before the target. Further, the history information search unit 57 causes the trigger information display unit 71 to display the data of the record of the acquired trigger information table 61, and the pre-change information display unit 72 has the same trigger ID as the trigger information in the post-change ID. The data of the record of the land information table 62 in which the value is set is displayed, and the data of the record in which the same value as the trigger ID of the trigger information is set in the previous trigger ID is displayed in the changed information display unit 73. When the history transfer button 76 is pressed, the history information search unit 57 executes the processing after step S251 for any of the land information records displayed on the pre-change information display unit 72. Further, when the history transfer button 77 is pressed again, the history information search unit 57 performs the processing after step S251 for the land information record selected by the user among the land information records displayed on the changed information display unit 73. Execute.

In this way, the latest land information can be searched by providing the items of the pre-trigger ID and the post-trigger ID in the land information record and setting the trigger ID related to the generation and the generation of the next-generation land information. It makes it easy to confirm the changes over the past few generations. Further, the history information search unit 57 searches for a record in the trigger information table 61 using, for example, the registration acceptance date indicating the time of transfer as a search condition, and the value of the trigger ID stored in the record is the pre-trigger ID or the post-trigger ID. The record of the land information table 62 set in may be acquired. This makes it possible to output a list of transfer histories in a specific period. Further, instead of the registration acceptance date, the record of the opportunity information table 61 and the record of the land information table 62 may be acquired by using other items of the opportunity information table 62 such as the transfer type, the contract date, and the person in charge as search conditions. This also makes it possible to output a list of land sold during a specific period and a list of transfers involving a specific person in charge.

The history information search unit 57 may acquire the land information of the past land that overlaps with the position specified in a certain land information. More specifically, an item of map information is added to the land information table 62, and the history information search unit 57 stores it in the map information among the records in which the same value as the trigger ID of the trigger information is set in the post-trigger ID. The topography of the land to be searched may be searched for overlapping with the specified position, and the record of the searched land information may be output as the search result.

So far, as a system for managing history, land is used as an example of an object, and a transfer information management system that handles land registration information has been described, but the information handled by the system is not limited to land transfer information. The system for managing the history may use the organization as an example of the object instead of the land transfer information, and may handle the information of the organization in the company. FIG. 13 is a diagram showing an example of the organization trigger table, and the organization trigger table corresponds to the trigger information table 61. FIG. 14 is a diagram showing an example of an organization table, and the organization table and the organization ID correspond to the land information table 62 and the land ID. In addition, the organization name of the organization table corresponds to the combination of the city, ward, town, and village of the land information table 62, the large letters, the letters, and the lot number. Further, the pre-trigger ID of the organization table and the post-trigger ID of the organization table correspond to the pre-trigger ID of the land information table 62 and the post-trigger ID of the land information table 62. Even if a company frequently merges or separates organizations, it will be possible to reliably grasp the relationship between past organizations and current organizations with an information system.

1 server, 2 client device, 11,21 processor, 12,22 storage unit, 13,23 communication unit, 14,24 input / output unit, 51 transfer information acquisition unit, 52 information change unit, 53 trigger information addition unit, 54 land Information change unit, 56 latest information search unit, 57 history information search unit, 61 opportunity information table, 62 land information table, 31 list display unit, 32 selected rows, 35 map fields, 36 movement history buttons, 37 division buttons, 41 Trigger information input section, 42 Change target display section, 43 Change content input section, 47 Confirm button, 71 Trigger information display section, 72 Pre-change information display section, 73 Post-change information display section, 75 History list display section, 76,77 History transfer button.

Claims (4)

An instruction acquisition means for designating one or more old objects and acquiring an instruction to generate one or more new objects by integrating or dividing the one or more old objects.
It includes object information indicating an object, first identification information which is information for identifying an instruction for creating the object as the new object, and second identification information for identifying an instruction for designating the object as the old object. A storage means for storing multiple records and
When the instruction is acquired, a record including the object information indicating the object generated as the new object and the first identification information in which the information for identifying the instruction is set is newly stored in the storage means. Then, a record update means for setting information for identifying the instruction in the second identification information of the record including the object information indicating the object designated as the old object by the instruction.
When one of the plurality of records is selected, the same information as the first or second identification information contained in the selected record is searched for the record set as the second or first identification information. Then, a history search means that outputs information based on the searched record, and
History management system including. In the history management system according to claim 1,
When the instruction is acquired, the record updating means sets object information indicating an object generated as the new object, first identification information in which information for identifying the instruction is set, and a predetermined value. A record containing the second identification information is newly stored in the storage means, and the instruction is identified in the second identification information of the record including the object information indicating the object designated as the old object by the instruction. Set information,
History management system. In the history management system according to claim 1 or 2.
The object is a land
The object information includes the lot number of the land.
The instructions include a land division or combination event,
History management system. An instruction acquisition means for designating one or more old objects and acquiring instructions to create one or more new objects by merging or splitting the one or more old objects.
It includes object information indicating an object, first identification information which is information for identifying an instruction for creating the object as the new object, and second identification information for identifying an instruction for designating the object as the old object. A storage means for storing multiple records,
When the instruction is acquired, a record including the object information indicating the object generated as the new object and the first identification information in which the information for identifying the instruction is set is newly stored in the storage means. Then, a record update means for setting information for identifying the instruction in the second identification information of the record including the object information indicating the object designated as the old object by the instruction, and
When one of the plurality of records is selected, the same information as the first or second identification information contained in the selected record is searched for the record set as the second or first identification information. A history search means that outputs information based on the searched record.
A program to make your computer work as.

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