KR20210023149A - Apparatus and method for associating data between internal system and external system - Google Patents

Abstract

The present invention provides a data linkage method, comprising the steps of: (a) collecting data from an external device; (b) converting the collected data into a standard format and removing redundancy; (c) converting the data from which the redundancy has been removed into a linkage format for data linkage and encrypting the data; and (d) dividing or compressing the encrypted data. According to the present invention, information linkage is possible through reinforced internal and external networks for various types of data.

Description

Data linkage device and method {APPARATUS AND METHOD FOR ASSOCIATING DATA BETWEEN INTERNAL SYSTEM AND EXTERNAL SYSTEM}

The present technology relates to a data linkage technology, and more particularly, to a data linkage device and method for removing data redundancy and providing data linkage in order to provide a smooth service between an internal system and an external system.

Recently, there is a need to link various structured information and unstructured information such as data, images, and attachments that have been databaseized in a distributed environment to be used in various systems, so companies have various types of information and data stored in a plurality of databases individually provided. , Attached files, etc. are converted and stored using EAI, ESB, or self-developed applications, and are used in conjunction with them. However, as the configuration of the information system has recently changed in the direction of separating the internal and external networks due to the reinforcement of the security of the information system, the following information linkage limitations have arisen from the system and network side.

1. The flow of information and data proceeds only from the inside to the outside system.

2. Database (DB) linkage between heterogeneous services is limited, and it is required to provide it by converting it into a file or web service format.

3. In order to block abnormal activities in network security equipment, data transmission and connection blocking occurs for 3 to 5 minutes or longer.

4. In a distributed environment, the amount of data linkage increases rapidly due to frequent registration, correction, and deletion of data.

5. Require application of reinforced security policies such as encryption for linked data

Due to these limitations, excessive system load occurs in the production, distribution, and utilization of data, and difficulties such as verifying the integrity of data, encryption processing of linked data, and partitioning and compressing processing for data or files larger than a certain amount occur. However, the previously used EAI/ESB linkage method has limitations in providing appropriate services and data linkage for various changed environments, and self-developed applications have problems in standardization due to service quality and repetitive development.

Korean Patent Publication No. 10-2017-0127096

An object of the present invention is to provide a data linkage device and method for performing data redundancy removal, encryption, division and compression, data conversion, and consistency verification in order to accurately and conveniently manage data and information in a distributed environment. .

A first aspect of the present invention for achieving the above object is a data linkage method, comprising the steps of: (a) collecting data from an external device, (b) converting the collected data into a standard format and removing redundancy, (c) converting and encrypting the data from which the redundancy has been removed into a linked format for data linkage, and (d) dividing or compressing the encrypted data.

Preferably, the step (b), when the current data converted to the standard format is structured data, comparing the default value and attribute value of the current data with the default value and attribute value of the previously stored data, And if the default value and the attribute value are the same according to the comparison result, except for the current data, if the default value exists in the previous data and does not exist in the current data, the previous data is deleted, and the default value exists in the previous data. Otherwise, if it exists in the current data, the current data is added, and if the default value is the same and the attribute value is different, changing the previous data to the current data.

Preferably, the step (b), when the current data converted to the standard format is unstructured data, comparing the data name and data size of the current data and the previous data, according to the comparison result, If the data name and data size are the same, the current data is excluded. If the data name exists in the previous data and does not exist in the current data, the previous data is deleted, and the data name does not exist in the previous data and does not exist in the current data. If it exists, the current data is added, and if the data name is the same and the data size is different, changing the previous data to the current data.

Preferably, the step (d), when the capacity of the encrypted data exceeds a preset reference capacity, dividing and compressing the encrypted data, and the capacity of the encrypted data is a preset reference capacity If it does not exceed, the step of compressing the encrypted data may be included.

Preferably, (e) further comprising the step of transmitting the divided or compressed data to a relay device, wherein the data transmitted to the relay device is stored in the relay device, and the stored data is Information on a data processing result transmitted from the relay device to the using device and transmitted to the using device may be transmitted to and stored in the relay device.

Preferably, it may further include the step of (f) verifying consistency based on log information generated while each step is performed.

Preferably, the step (f) includes log information generated while performing each operation in steps (b) to (c), log information generated while performing an operation of transmitting and receiving data in the relay device, and the use of the log information. Collecting log information generated while performing an operation of receiving and using data from the device, verifying integrity based on the collected log information, and completing processing when verification is completed according to the verification result of the integrity. And if the verification fails, reprocessing the operation of the corresponding step may be included.

A second aspect of the present invention for achieving the above object is, as a linkage device, a data collection unit for collecting data from an external device, a redundancy removal unit for converting the collected data to a standard format and removing redundancy, and the redundancy is And an encryption unit for converting and encrypting the removed data into an association format for data linkage, and a division and compression unit for dividing or compressing the encrypted data.

Preferably, it further comprises a transmission unit for transmitting the divided or compressed data to a relay device, wherein the data transmitted to the relay device is stored in the relay device, and the stored data is from the relay device at the request of the using device. Information on the data processing result transmitted to the using device and transmitted to the using device may be transmitted to and stored in the relay device.

Preferably, it may further include a consistency verification unit for verifying the consistency based on the log information generated while the operation is performed in each unit.

A third aspect of the present invention for achieving the above object is a data linkage system, which collects data from an external device, converts the collected data to a standard format, removes redundancy, and converts the data from which the redundancy is removed. A linkage device that converts and encrypts the linkage format for linkage, divides or compresses the encrypted data, and receives and stores the divided or compressed data from the linkage device, and transmits the stored data at the request of the user device. And a relay device that deletes the transmitted data and stores information on a result of processing of the transmitted data by the using device.

As described above, according to the present invention, there is an effect that information linkage is possible in a reinforced internal and external network for various types of data and data.

In addition, since the data and the file at the time of comparison are compared with the current data, the history information generated in the intermediate step is removed, so that weight reduction is possible.

In addition, it has the effect of minimizing the occurrence of security problems and loads that may occur when linking data and data.

In addition, it can be implemented simply by applying standard technology, and there is an effect of quickly establishing a new connection service.

1 is a block diagram of a data linkage system according to a preferred embodiment of the present invention.
2 is a configuration diagram of a data linkage system according to an embodiment.
3 is a block diagram of an associated device according to an embodiment.
4 is a block diagram of a redundancy removal unit according to an embodiment.
5 is a block diagram of a consistency verification unit according to an embodiment.
6 is a block diagram of a relay device according to an embodiment.
7 is a block diagram of a use device according to an embodiment.
8 is a flowchart of a data linkage method according to an embodiment.

Hereinafter, the advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described later in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms. It is provided to completely inform the scope of the invention to the possessor, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification. "And/or" includes each and every combination of one or more of the recited items.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step has a specific sequence clearly in the context. Unless otherwise stated, it may occur differently from the stated order. That is, each of the steps may occur in the same order as the specified order, may be performed substantially simultaneously, or may be performed in the reverse order.

The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, “comprises” and/or “comprising” refers to the presence of one or more other components, steps, actions and/or elements in which the recited elements, steps, actions and/or elements Or does not preclude additions.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

In addition, when it is determined that detailed descriptions of known functions or configurations may unnecessarily obscure the subject matter of the present invention in describing the embodiments of the present invention, detailed descriptions thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout the present specification.

1 is a block diagram of a data linkage system according to a preferred embodiment of the present invention.

1, the data linkage system includes an external device 100, a linkage device 200, a relay device 300, and a use device 400, and the external device 100 and the linkage device 200 It is included in the internal system, and the relay device 300 and the use device 400 are included in the external system. Here, the external device 100, the linking device 200, the relay device 300, and the using device 400 are connected through a mutual network, for example, an Internet network, an intranet network, a mobile communication network, and a satellite communication network. It may be connected through a network network capable of transmitting and receiving data using various wired/wireless communication technologies such as, and the communication means may be variously modified and applied according to the intention of a person skilled in the art.

The external device 100 is a device that provides various types of data such as DBMS, xlm/json, csv/xls, or provides data in the form of files such as images or documents, and may include a plurality of devices. Preferably, the source data provided by each external device 100 may correspond to detailed data for each business item and related files stored in an enterprise resources planning (ERP) system or an internal computer network. For example, in the case of a public institution, the external device 100 includes source DB/files for a plurality of tasks or departments, and source DB/files are linked to facility information, installation/prevention/breakdown/disposal, and internal ERP. It may include at least one or more data of information related to customer service.

Preferably, the source data is stored in a plurality of external devices 100 through a practitioner's terminal, or is provided in the form of a public data connection API like weather information, and the data stored or provided in the external device 100 can be used to identify the data. It may include at least one of a table, a row, a column, an ID/attribute, a Structured Query Language (SQL) statement, and other identification information. Here, a table is composed of rows and columns, and is the most basic unit in which data is stored. In particular, a column is a kind of attribute as one or more distinct values when data enters a table. SQL statements are structured query statements and are a standard interactive programming language for getting or updating information from a database. Many database-related programs adopt SQL as a standard, and SQL can be used when performing tasks such as database creation and record search.

The linkage device 200 is a device that transmits data to an external system by reducing data weight and performing encryption and compression. Preferably, the linkage device 200 may include a configuration that performs an operation of removing redundancy of data in order to lighten the data. In one embodiment, the operation of removing redundancy may be implemented in the form of an agent for removing redundancy, and FIG. 1 shows a configuration in which the redundancy removal agent is executed inside the connection device 200. In another embodiment, the deduplication agent may be executed in each external device 100 according to the configuration of the system and the service providing method, and in this case, a data linkage system may be configured as shown in FIG. 2. Hereinafter, a configuration in which redundancy of data is removed from the connected device 200, that is, a configuration in which a redundancy removal agent is executed inside the connected device 200, is described, and the redundancy of data is removed from each external device 100. The examples can be easily performed by a person skilled in the art.

The relay device 300 is a device that relays data transmission/reception between an internal system and an external system, and may preferably receive, store, manage, and transmit data processed by the connection device 200 to the user device 400. In Figures 1 and 2, the connection device 200 and the relay device 300 are separately shown, but the connection device 200 and the relay device 300 are integrated into one according to the internal security regulations of the organization or the configuration of the system. Can be configured.

The using device 400 is a device that receives data provided by the external device 100 and processed by the linking device 200 through the relay device 300, and performs a linking operation of data provided from the external device 100. It is a device to do.

Hereinafter, it is described that each operation is performed based on data, but the same can be applied to a file, and this can be easily implemented by a person skilled in the art.

3 is a block diagram of an associated device according to an embodiment.

3, the linkage device 200 includes a schedule management unit 210, a data collection unit 220, a redundancy removal unit 230, an encryption unit 240, a split compression unit 250, and a transmission unit 260. , A log management unit 270, and a consistency verification unit 280. Here, the operation of each component of the linkage device 200 and the flow of data may be controlled through a control unit (not shown in the drawings). Hereinafter, with reference to FIGS. 4, 5, and 8, operations performed through each component of the linking device 200 will be described in more detail.

The data collection unit 220 collects data from the external device 100 (step S810). That is, source data is collected from each external device 100.

The redundancy removal unit 230 converts the data collected through the data collection unit 220 into a standard format and removes the redundancy (step S820). In one embodiment, the redundancy removal unit 230 may be implemented in the form of a redundancy removal agent, and when the redundancy removal agent is performed in the external device 100 as shown in FIG. 2, steps S810 and S820 are performed by external devices. It can be done at 100. Here, in the linkage device 200, a description will be made based on steps S810 and S820 being performed.

Preferably, the redundancy removal unit 230 can convert the collected data into a prescribed format, and the source data collected from each external device 100 includes one or more data fields that can be connected in a relational manner. Data included in the data field can be converted into a common format.

Preferably, the redundancy removal unit 230 may remove the redundant state of the integrated data by comparing the previous data at the previous time and the current data at the current time, storing the changed data, and removing the remaining data. More specifically, referring to FIG. 4, the redundancy removal unit 230 includes a schedule management module 231, a previous data management module 232, a current data management module 233, a comparison determination module 234, and a storage module ( 235), and a log management module 236. The schedule management module 231 is in charge of checking the redundancy of data in units of year/month/day/hour/minute according to a preset business rule from the initial start to the end, and generates an error log in case of an abnormal situation, and a normal log in case of normal processing. Is delivered to the log management module 236. When a data linkage period is set according to the nature of the task, the schedule management module 231 automatically performs an operation of removing data redundancy according to the set period. Data redundancy removal operation is as follows.

When the schedule management module 231 generates current data based on the data collected through the data collection unit 220 and converted into a standard format, the current data is managed by the current data management module 233, and the comparison determination module 234 ) Compares the current data managed by the current data management module 233 with the previous data managed by the previous data management module 232. Here, the previous data is a final result value for data previously processed by the schedule management module 231 and becomes a reference value for comparison with the current data.

Preferably, when the current data is structured data, the comparison determination module 234 may divide and compare the previous data and the default value (key value) and attribute information (attribute value) of the current data. If the default values and attribute values of the previous data and the current data are the same, the comparison determination module 234 compares the default values of the previous data and the current data, excluding the data from the execution of the deduplication operation, and exists in the previous data, but the current data. The missing values are deleted and the values that exist in the current data that are not in the previous data are added, and the reference values of the previous data and the current data are the same, but the attribute values that are different can be changed to the current data.

In addition, when the current data is unstructured data such as an image and a file, the comparison determination module 234 may exclude, delete, add, or change data by comparing the data name of the previous data and the current data with the size of the data. . More specifically, if the data name and data size of the previous data and the current data are the same, the comparison determination module 234 excludes the corresponding data from the execution of the redundancy removal operation, and compares the data name of the previous data and the current data to determine the previous data. Values that exist in the current data but not in the current data are deleted, and values that exist in the current data that are not in the previous data are added, and the data names of the previous data and the current data are the same, but those with different data sizes can be changed to current data.

Based on the data excluded, deleted, added, or changed through the comparison determination module 234, the storage module 235 transmits the deleted, added, or changed data to the encryption unit 240, or redundancy is eliminated. When the rejection 230 is implemented in the form of an agent separately from the connection device 300 and is executed in the external device 100, the rejection 230 is stored in a separate table to be transmitted to the connection device 300. In addition, the storage module 235 deletes the temporary data generated in the process of comparing and calculating the previous data and the current data in the comparison determination module 234, and changes the current data to the previous data, and manages it through the previous data management module 232. The previous data to be updated.

The log management module 236 divides the start time, the required time, the end time, and the processing result of the schedule management module 231 for the redundancy removal operation into success and failure, and stores them in a storage device. Regarding the processed work, notification information is sent by e-mail or SMS of the system person in charge of the preset system.

When the redundancy of data is removed by the redundancy removal unit 230, the redundancy is removed according to the setting information preset in the schedule management unit 210, and the stored data is provided to the encryption unit 240. Here, the schedule management unit 210 stores and manages a schedule for periodically performing a linked task, and the operation method of the schedule management unit 210 is the same as that of the schedule management module 231 of the redundancy removal unit 230. That is, the schedule management unit 210 is in charge of encrypting data in units of year/month/day/hour/minute according to the business rules from the initial start to the end, and logs an error log in case of an abnormal situation and a normal log in case of normal processing. It is transmitted to the management unit 270. When a data linkage period is set according to the nature of the task, the schedule management unit 210 automatically performs an encryption operation of data according to the set period.

The encryption unit 240 converts the data from which the redundancy is removed through the redundancy removal unit 230 into a linkage format for data linkage and encrypts it (step S830). Preferably, the encryption unit 240 may extract the structured or unstructured information generated by the redundancy removal unit 230 and store the extracted structured or unstructured information as a file of a linkage format required for data linkage. For example, in the case of structured data such as DB, it is converted into a linked format corresponding to xls/csv, josn, or xml, and in the case of unstructured data such as an image or document file, it is converted and stored in a linked format corresponding to the same format. Can be. Here, the same type means the same extension or corresponds to the MimeType. In the case of unstructured data, conversion to the same type is required to be displayed or downloaded according to the type.

Preferably, the encryption unit 240 may encrypt data in accordance with NIS security regulations in order to secure data from external threats such as hacking or forgery in the process of linking or transmitting data. The encryption key can be applied by setting a predetermined value in various ways such as a domain or IP of the external device 100 or the device 400, a specific location of a file name, etc., and the encryption target is a data value or a password setting of a stored file. Can be processed separately.

The divided compression unit 250 divides or compresses the data encrypted through the encryption unit 240 (step S840). Preferably, the divided compression unit 250 may apply division or compression of data when the data stored to date exceeds the internal security regulations or when faster transmission is required. The divided compression unit 250 calculates a capacity of encrypted and stored data, divides and compresses data exceeding a preset reference capacity, and performs general compression for data less than a preset reference capacity. Here, since it is necessary to confirm the missing part in the middle for normal use of the divided and compressed data, the total quantity of data may be displayed in the data name, and the order may be given from 1 to Z, for example.

The transmission unit 260 transmits the divided or compressed final data to the relay device 300 through the divided compression unit 250. Here, the transmission method may be processed by copying or moving when the linkage device 200 and the relay device 300 are the same device, and may be transmitted using an FTP or SFTP transmission protocol when the device is different.

The consistency verification unit 280 verifies the consistency of data based on the log information generated from the linkage device 200, the relay device 300, and the use device 400, hereinafter, the relay device 300 and the information reuse device After the operation performed in 400 is first described, it will be described in more detail with reference to FIG. 5.

6 is a block diagram of a relay device according to an embodiment.

Referring to FIG. 6, the relay device 300 includes an OutBound 310, an InBound 320, and a log management unit 330. Here, the operation and data flow between each component of the relay device 300 is controlled through a control unit (not shown in the drawing).

OutBound 310 is a folder that stores and manages data transmitted from an internal system to an external system, and InBount 320 is a folder that stores and manages data transmitted from an external system to an internal system. The log management unit 330 stores and manages log information generated in the process from the start to the end of data transmission and reception performed between internal and external systems, and preferably, the start time, the required time, the end time, and the processing result. It is classified as a failure and stored in a storage device, and notification information can be sent by e-mail or SMS of a system person in charge of a preset system for a task that takes too much time or is processed as a failure.

The final data transmitted through the transmission unit 260 of the connection device 200 is stored in the OutBound 310, and the final data stored in the OutBound 310 according to the transmission request from the using device 400 is transmitted by FTP or SFTP. It is transmitted to the using device 400 through the protocol. At this time, the final data transmitted to the using device 400 is deleted from the OutBound 310. When the using device 400 receives the final data, result information on the result of processing the final data in the using device 400 is transmitted from the using device 400 to the relay device 300 and stored in the InBound 320. Here, the result information is transmitted to the relay device 300 through an FTP or SFTP transmission protocol in a preset file format and then stored in the InBound 320.

7 is a block diagram of a use device according to an embodiment.

Referring to FIG. 7, the using device 400 includes a schedule management unit 410, a divided compression processing unit 420, a decoding unit 430, a data processing unit 440, a result information storage unit 450, and a log management unit 460. ). Here, the operation and data flow between each component of the using device 400 is controlled through a control unit (not shown in the drawings).

Upon receiving the final data from the relay device 300, the using device 400 periodically performs a linking operation according to the setting information preset in the schedule management unit 410. Preferably, the schedule management unit 410 stores and manages the schedule for periodically performing the linkage operation, and is in charge of linking the data in units of year/month/day/hour/minute according to the business rules from the initial start to the end. In an abnormal situation, an error log is transmitted to the log management unit 460 in normal processing. That is, if a data linkage period is set according to the nature of the task, the schedule management unit 410 automatically performs an operation for linking data according to the set period.

When the linkage operation is started by the schedule management unit 410, the divided compression processing unit 420 decompresses the final data and converts it into one encrypted data, and the decryption unit 430 decrypts the decompressed encrypted data. It is converted into a format for storage in the using device 400. Then, the data processing unit 440 reflects the data converted in the format by the decoding unit 430 to the database (DB) or directory of the using device 400, and the data of the external device 100 and the using device 400 The data of are matched and the corresponding result is stored in the result information storage unit 450.

As described above, the data collected from the external device 100 is transferred to the using device 400 through the linking device 200 and the relay device 300 to provide data between the external device 100 and the using device 400. When the linkage of is performed, an operation of verifying the consistency is performed to ensure the consistency of the linked data in a distributed environment. Through verification of consistency, reprocessing is performed in the device in which an abnormality has occurred, and inconsistency between information linkages can be resolved. The consistency verification is performed by the consistency verification unit 280 of the linkage device 200, and will be described in more detail below with reference to FIG. 5.

Referring to FIG. 5, which is a block diagram of the consistency verification unit according to an embodiment, the consistency verification unit 280 includes a log collection module 281, a log storage module 282, a consistency verification module 283, and a processing module. (284) is included.

The log collection module 281 collects log information generated from the linkage device 200, the relay device 300, and the use device 500. In one embodiment, when the data redundancy removal operation is performed through the redundancy removal agent implemented in the external device 100, log information generated from the redundancy removal agent may be collected. Preferably, the log collection module 281 may record and manage result values of processes ranging from deduplication of data to data linkage, relay processing, and data use, and the log management module 236 of the redundancy removal unit 230 ), the log management unit 270 of the connection device 200, the log management unit 330 of the relay device 300, and the log management unit 460 of the using device 400 from the start of each operation performed on each device to end Log information generated during the process can be collected.

The log storage module 282 receives the progress result value for each process collected by the log collection module 281 and stores it in a database, and the consistency verification module 283 provides linkage data in the entire process based on the information stored in the database. The integrity of the Preferably, the consistency verification module 283 considers the amount of data or the configuration of the system based on the log information stored in the database, and the result value is not recorded within a preset time or the result value is recorded as a failure. It can be determined that the consistency has not been verified. The processing module 284 completes data linkage processing for a result of which the consistency is verified according to the verification result in the consistency verification module 283, and performs data linkage processing again for a result of which the consistency is not verified. That is, for linking the data described above, redundancy removal, encryption, or division or compression performed by the linking device 200, data relaying performed by the relay device 300, or data performed by the using device 400 The linkage operation is re-implemented.

Meanwhile, the data linkage method according to an embodiment of the present invention may also be implemented as a computer-readable code on a computer-readable recording medium. The computer-readable recording medium includes all types of recording devices that store data that can be read by a computer system.

For example, computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, removable storage device, and non-volatile memory. , Optical data storage devices, and the like.

In addition, the computer-readable recording medium can be distributed over a computer system connected through a computer communication network, and stored and executed as code that can be read in a distributed manner.

Although preferred embodiments of the data linkage apparatus and method according to the present invention have been described above, the present invention is not limited thereto, and various modifications are made within the scope of the claims, the detailed description of the invention, and the accompanying drawings. It is possible and this also belongs to the invention.

100: external device 200: linkage device
210: schedule management unit 220: data collection unit
230: redundancy removal unit 231: schedule management module
232: previous data management module 233: current data management module
234: comparison determination module 235: storage module
236: log management module 240: encryption unit
250: split compression unit 260: transmission unit
270: log management unit 280: consistency verification unit
281: log collection module 282: log storage module
283: consistency verification module 284: processing module
300: relay 310: OutBound
320: InBound 330: log management unit
400: use device 410: schedule management unit
420: divided compression processing unit 430: decoding unit
440: data processing unit 450: result information storage unit
460: log management unit

Claims (11)

(a) collecting data from an external device;
(b) converting the collected data into a standard format and removing redundancy;
(c) converting and encrypting the data from which the redundancy has been removed into an association format for data association; And
(d) dividing or compressing the encrypted data.
The method of claim 1, wherein step (b),
If the current data converted to the standard format is structured data, comparing the default value and attribute value of the current data with the default value and attribute value of previously stored data; And
According to the comparison result, if the default value and the attribute value are the same, except for the current data, if the default value exists in the previous data and does not exist in the current data, the previous data is deleted, and the default value does not exist in the previous data. And adding the current data if it is present in the current data, and changing the previous data to the current data if the default value is the same and the attribute value is different.
The method of claim 1, wherein step (b),
If the current data converted to the standard format is unstructured data, comparing the data name and data size of the current data and the previous data;
According to the comparison result, if the data name and the size of the data are the same, excluding the current data, if the data name exists in the previous data and does not exist in the current data, the previous data is deleted, and the data name is in the previous data. And if it does not exist and exists in the current data, adding the current data, and if the data name is the same and the data size is different, changing the previous data to the current data.
The method of claim 1, wherein step (d),
If the capacity of the encrypted data exceeds a preset reference capacity, dividing and compressing the encrypted data; And
And compressing the encrypted data when the capacity of the encrypted data does not exceed a preset reference capacity.
The method of claim 1,
(e) further comprising the step of transmitting the divided or compressed data to a relay device,
The data transmitted to the relay device is stored in the relay device, the stored data is transmitted from the relay device to the using device according to the request of the using device, and the information on the data processing result transmitted to the using device is the Data linkage method, characterized in that the transmission to the relay device and stored.
The method of claim 5,
(f) verifying consistency based on log information generated while each of the steps is performed.
The method of claim 6, wherein the step (f),
Log information generated while performing each operation in steps (b) to (c), log information generated while performing an operation of transmitting/receiving data from the relay device, and receiving and using data from the using device are performed. Collecting log information generated while doing so;
Verifying integrity based on the collected log information; And
And completing processing when verification is completed according to a result of verifying the integrity, and reprocessing an operation of a corresponding step when verification is unsuccessful.
A data collection unit collecting data from an external device;
A redundancy removal unit converting the collected data into a standard format and removing redundancy;
An encryption unit for converting and encrypting the data from which the redundancy has been removed into an association format for data association; And
A linkage device comprising a division and compression unit for dividing or compressing the encrypted data.
The method of claim 8,
Further comprising a transmission unit for transmitting the divided or compressed data to a relay device,
The data transmitted to the relay device is stored in the relay device, the stored data is transmitted from the relay device to the using device according to the request of the using device, and the information on the data processing result transmitted to the using device is the A linkage device, characterized in that transmitted to and stored in a relay device.
The method of claim 9,
And a consistency verification unit for verifying consistency based on log information generated while the operation is performed in each unit.
Collects data from an external device, converts the collected data into a standard format and removes redundancy, converts and encrypts the data from which the redundancy has been removed into a linkage format for data linkage, and divides or compresses the encrypted data A linkage device; And
Receives and stores divided or compressed data from the connected device, transmits the stored data at the request of the user device, deletes the transmitted data, and stores information on the processing result of the transmitted data in the using device. Data linkage system including a relay device.

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