TWI385543B - Data Synchronization System and Method for Establishing Mediation Data in Directory Service Format - Google Patents

Description

Data synchronization system and method for establishing intermediary data in directory service format

The invention relates to a system and method for establishing and converting data synchronization intermediary data, in particular to a system and method for comparing data between heterogeneous data storages into comparative data and identifying different characteristics of the data.

At present, the development of electronicization of government, enterprises and various organizations has led to an increase in the number of information systems and platforms built within and outside the organization. Information systems and platforms use different types of databases, catalogues, archives and other storage to store important information. As the integration of internal and inter-organizational electronic services and the promotion of more meta-category services have become an inevitable trend, the information synchronization needs of common information such as organizations and personnel of information platforms are also valued. On the macro level, data synchronization should establish comparative mediation data, and handle the differences between the mediation data and the source data, so that the data synchronization system or program can be managed and converted into the synchronization data required by each platform. And store the synchronized data in each data storage to supply the extended application. However, in practice, each platform synchronizes with different service modes, different data processing rules, different operating system environments, and built on different data storages. When the synchronization source and destination are synchronized, the comparison is made. There is no way to follow the data conversion and establishment. The construction personnel often do not pay much attention to the establishment of intermediary data, and directly establish a program with low reusability and difficulty in expansion to compare the data sources. Therefore, the establishment of good intermediary data The conversion system is the key to the urgent need for a heterogeneous data synchronization system or method between organizations.

Different data storages are different in terms of data definition, storage method and retrieval method. Therefore, how to define the data in a data storage medium and store it in another data storage is difficult to be unified. Rule description; such data synchronization requirements are usually handled by the designer's own derivation of the built program, or through the intermediary layer to establish intermediary data processing:

1. The program built by the self-derivation program is used to synchronize the program: the program does not contain mediation data or only a small number of self-defined mediation objects. These programs are difficult to control except for the quality of the built-in products. Non-technical problems such as unfamiliar areas, communication differences, and other missing items should describe the items or attributes that should be described, and make the programs that lack commonality more flexible, difficult to expand and reuse.

Second, XML custom intermediary processing or DSML data exchange standards: There are procedures for establishing data exchange intermediary materials, often with custom description of XML or DSML in accordance with the directory exchange standard to develop intermediary data or data exchange files, custom description of XML Limited to the developer's point of view is difficult to universally refer to, while DSML is complex and difficult to construct.

3. The database is used as an intermediary data storage conversion process: the database is treated as an intermediary data, and the definitions of tables and fields are determined by the designer. Therefore, there are also disadvantages that are difficult to be widely referenced by the developer's point of view. For the data synchronization of the source and destination directory server, there is currently no standard practice. It is possible to implement the database as an intermediary data processing program.

Therefore, there is a need for a method for establishing and converting intermediate data when heterogeneous data is synchronized, which is used to solve the problem of heterogeneous data storage such as directory services, databases and archives, and the intermediate data is processed during the synchronization of mutual data. The directory service standard describes the data by object, so that if the data needs to be expanded, it can be expanded by the concept of object inheritance, and the data transfer through the object processing is easy to add, modify, delete, manage strict and low complexity, and the directory service is Organizations, personnel, Internet users, etc. often need to share information, there are a variety of object descriptions, each category, attribute description is complete and in line with international standards; and if an intermediary data object can be established, the intermediary information object can be observed through the query interface The content value can be pre-corrected before the data synchronization job is completed, to prevent the error data from being written into the data storage, and to strengthen the management of the synchronization operation. The system establishes an intermediary data object in the data description format of the directory service standard, and establishes an intermediary data creation and data conversion system when the data is synchronized.

It can be seen that there are still many shortcomings in the above-mentioned methods of use. It is not a good design and needs to be improved.

In view of the shortcomings derived from the above-mentioned conventional methods, the inventor of the present invention has improved and innovated, and after years of painstaking research, he finally succeeded in researching and developing the data synchronization system and method for establishing intermediary materials in the directory service format.

The object of the present invention is to provide a system for processing heterogeneous data synchronization by using an intermediary data object conforming to the directory service data format; it can establish an information difference between the intermediary data object and the transaction to be changed for different data storage bodies. It is not limited to being stored in a specific data storage, but can be a file, a database or a directory, so that any program that needs to synchronize data, such as synchronization software and programs, can obtain the information of the transaction and complete the synchronization operation.

The second object of the present invention is to provide a system and method for data conversion of heterogeneous data synchronization mediation, and to establish an intermediary data object dedicated to data synchronization in a directory service data format, the mediation data object is not limited to being stored in a specific data storage, Archives, databases or catalogues enable a data repository to obtain transactional information, which can be converted according to different sources and converted into intermediate data.

The system for synchronizing the mediation and conversion of data for the above purposes is to establish a data synchronization server to convert the data of each source server into an intermediary data object, and generate a data transaction object after processing as a server for writing data. The basis of the device. The "conversion mediation data object synchronization server" includes: a data link and object conversion module for linking each source and destination data server, and converting the data into an information file in an intermediary data format; an intermediary data conversion The module provides an intermediary data object format for reference to the data link module, and converts each data object, content calculation, and the data object to be synchronized into an intermediary data object according to the setting; a difference data transaction module connects the data The content value of the data object converted by the module is the same as the mediation data object, and indicates the data object that needs to be changed. A data output module will change the data object according to the data type of the destination data server. Transaction-to-destination data server; an intermediary data object setting module for synchronizing and storing data in the directory service format to synchronize mediation object information; a query intermediary data query interface for conveniently querying the current content value of the mediation data; Object repository for storing linked data of each linked data server Intermediary data objects, as well as differences in the use of data objects as the transaction processing.

The invention also provides a method for establishing and converting mediation data for heterogeneous data synchronization, the steps of which include:

Step 1: Set the mediation data object format according to the directory service format, including object category, attribute and synchronization identification key setting;

Step 2: After the data synchronization server is connected with the source and destination data servers, refer to the mediation data object format setting, and convert the data source storage object to the linked data object in the same format as the intermediary data object;

Step 3: Check whether the linked data object has the corresponding intermediary data object and add it, and check the multiple linked data objects representing the same data object, and map the linked data objects to the same existing intermediary data object;

Step 4: Process the difference data between the linked data object and the intermediary data object, and store the final result in the intermediary data object, and unify the embedded value of all the linked data objects, and the content of the linked data object is marked and marked;

Step 5: After the data synchronization server is connected with the destination data server, the transfer program conforming to the data storage type of the data destination, including the text format, the XML format, the database format, the catalogue data object format, and the linked data will be changed. The object is updated by the transfer program to the data destination storage object on the destination server.

When multiple heterogeneous data storage entities want qqf to synchronize data with each other, first establish intermediary data to easily identify differences and facilitate management. This method describes the intermediate data specifications in the directory service data format and establishes an intermediary synchronization object to equalize the source data. Linked into an intermediary synchronization object data, and the data is marked as need to be added, need to be modified, need to delete three characteristics, for other external data synchronization system or data synchronization program to identify the source and destination data differences to complete the multi-party heterogeneous data storage Synchronization.

Please refer to FIG. 1 , which is a schematic diagram of a network environment of a system for implementing a data synchronization system for establishing an intermediary data in a directory service format according to the present invention, which mainly includes:

A computer network 1 is a communication implementation for transmitting data to and from a computer in a physical connection, wireless or hybrid transmission medium connection, and may include multiple network nodes, which may be included by those skilled in the art, which may include Multiple network management devices, such as wireless access points, hubs, bridges, routers, switches, or other devices used to handle network communications. And is a medium for connecting the source data server 2, the conversion intermediary data object synchronization server 3, and the destination data server 4;

The source data server 2 has one or more source data storage bodies, and transmits the source data to the conversion intermediary data object synchronization server 3 through the computer network 1 for conversion, wherein the source data server 2 receives the source. Information, the format of which may be a database, a directory service or a file;

A conversion intermediary data object synchronization server 3 receives data from the source data server 2 through the computer network 1 to convert the source data into intermediary data, and records the object transaction information, and processes the transaction data according to the transaction data. The destination server data server writes a data destination server to the data storage type through the computer network 1;

The data server 4 of the destination receives the transaction data converted by the conversion intermediary data object synchronization server 3 through the computer network 1, and converts the data into one or more destination data storages, and the data storage body can be in the format of the data library. , directory service or file to synchronize the data of each data store.

Please refer to FIG. 2, which is an architecture diagram of an intermediary data object synchronization server of a data synchronization system for establishing an intermediary data in a directory service format according to the present invention, which mainly includes:

An intermediary data object setting interface 31 provides an interface for the data object format, so that the intermediary data object setting module 32 conforms to the directory service description object format;

An intermediary data object setting module 32 is configured to match the data input by the intermediary data object setting interface 31 to conform to the directory service description object format, to set the synchronization intermediary data object format, and formulate the completed object format specification to provide data link and object. The conversion module 33, the mediation data conversion module 34, and the difference data transaction module 35 are used as reference for converting the data object;

A data link and object conversion module 33 can be connected to a data source server group, or can be connected to multiple data source servers, and corresponding to the media data object setting module 32 for data source types of different data sources. The object format specification converts the data into data objects and classifies the data objects into the linked data objects and stores them in the link area of the data object storage 37; for example, the data source is the filer, and each data is parsed by a specified separator. According to the object format specification, each data is converted into a data object. The object has multiple attributes to store each data content value, and then each data object is stored in a repository of linked data objects; the data source is a directory server, according to each The object category and attribute value of the data, according to the object format specification, each data is converted into a data object, the source object attribute value is copied to the converted data object attribute field, and each data object is stored in the storage of the linked data object. Library; the source of the data is the database, and each data table (Table) corresponds to the object name of the object format specification, each A data sheet field corresponds to the attribute of the object format specification, and each data (Record) is converted into a data object, and each data object is stored in a repository of the linked data object;

An intermediary data conversion module 34, the role of which is to establish an intermediary data object and identify the difference data; when the module receives the linked data object from the data link and object conversion module 33, first to the data object repository 37 intermediary area Looking for the existence of the information object, if not, refer to the intermediary data object setting module 32, and convert an intermediary data object to the intermediary area of the data object storage 37; if the connected data object is found, the intermediary data object is already present. The information object storage 37 intermediate area, according to the priority value of the synchronization key value of the intermediary data item setting module 32, the intermediate data object of the data object storage 37 is updated, and whether the linked information object needs to be recorded is sent to the difference. Data transaction module 35;

A difference data transaction module 35 refers to the object format specification of the mediation data object setting module 32, and receives the information of the transaction data item from the mediation data conversion module 34, and then processes the data object storage library 37. All the linked data objects are consistent with the mediation data objects, and the data items to be changed are copied to the output area of the data object storage 37, so that the data output module 36 can obtain the output data information by the difference data transaction module 35;

A data output module 36 obtains output data object information by using the difference data transaction module 35. The data output module 36 includes function processing for converting the data object into a text file, an XML file, a data library, and a directory. To convert the output data object into a data format that can be received by different types of data storage groups in the destination data server group 104.

A data object storage 37 is provided for the data link and the object conversion module 33 to store the data object and categorize the data object for the intermediary data conversion module 34 to find out whether the data object exists therein, and the difference data transaction module 35 The transaction data object is copied to the data object repository 37, and the intermediary data query interface 38 is provided to query the stored data object, and the data object storage 37 stores the source, the intermediary, and the output data, and can also store the mediation. The data object setting module 32 needs to store data when the finished object format specification and the data synchronization processing are completed, and the implementation storage body can be three types of data files, files, and directories;

An intermediary data query interface 38 is provided with a query interface for querying the data objects stored in the data object repository 37, including the correspondence of each of the linked data objects, the intermediary data objects, and the transaction output data objects, so that the status of the data objects can be easily queried. The data synchronization status is supervised, and the data object repository 37 can be implemented in any of the associated databases, files, and directories.

Please refer to FIG. 3, which is a software synchronization method for establishing an intermediary data in a directory service format according to the present invention. The software structure diagram of the intermediary data object format subsystem is set by the directory service object description, and the intermediary data object setting interface 31 is used to formulate the intermediary information. When the object is formatted, the mediation data object setting module 32 is motivated, and the mediation data object setting module 32 includes:

a directory service object description style library 321, wherein the directory service object description style library 321 stores a complete directory service description data item style, and the intermediary object name creation module 322 obtains the object category and attributes;

An intermediary object name creation module 322 can obtain the object category and attribute of the directory service object description style library 321 and name it to establish an intermediary data object specification, for example, when the intermediary data object setting interface 31 wants to set up "government organization" The data object, the interface priming the object name creation module 322 to obtain the organization object category in the directory service object description style library 321 , and the object category includes a reference to the attribute object such as the organization name according to the directory service standard, and the extracted item is taken out. The object category can be named as "Government Organization" data object, and then the subsequent object format specification setting operation is performed. When the intermediary object name creation module 322 completes the data object naming, the attribute object is transferred to the attribute name creation module 323;

An attribute name creation module 323 refers to the attribute object passed by the intermediary object name creation module 322, and is respectively named to establish a format specification of multiple attributes;

A synchronization key value setting module 324 refers to the attribute object passed by the mediation object name creation module 322, and when a plurality of attributes are established, specifies an attribute or multiple attributes as synchronization identification keys, and sets the The priority of the key data object attribute is identified, and the key value can be the value calculated by the attribute storage value or the multi-attribute processed by the program; all the data objects in the data object repository 37 can determine different data by using the key value of the synchronous identification key. The object is a data item that needs to be synchronized, and the value of the attribute of the intermediary data item is determined;

An extended attribute name creation module 325 refers to the attribute object passed by the intermediary object name creation module 322, and is configured for an extended attribute object format other than the directory service standard;

An intermediary data object format storage module 326 is a storage process of the final data object format specification, and the attribute name creation module 323, the synchronization key value setting module 324, and the extended attribute name creation module 325 object format specification are stored in the data. The object repository 37, but not limited to the data object repository 37, may be independently stored in the data storage body of the intermediary data object setting module 32, and may be implemented in any associated database, file, directory, and provided to the intermediary material. Conversion module 34.

Please refer to FIG. 4, which is a flowchart of a data synchronization method for establishing an intermediary data in a directory service format according to the present invention, and the steps include:

Step 1: According to the function of the data link and the object conversion module 33, the data source storage body is connected and the data type is determined (401);

Step 2: Through the function of the data link and the object conversion module 33, the data of the three different data storage types of the linked database (402), the connection directory (403), and the connection XML file (404) are transmitted, and the corresponding intermediary data object is set. The module sets the object format specification (405), and converts the data into the linked data object (406);

Step 3: After the data of the linked object object is established, it is judged whether the intermediary data object exists (407); if the mediation data object 37 does not exist in the data object repository 37, an intermediary data object is created (408); if it exists, it needs to be synchronized The synchronization key value and the priority setting information set by the key value setting module 324 determine the attribute value (409) of the mediation data object in the data object storage 37, and record whether the linked data object needs to be changed and sent to Difference data transaction module 35;

Step 4: After receiving the information of the transaction data item from the mediation data conversion module 34, the difference data transaction module 35 performs the transaction processing, and updates the linked data object stored in the data object storage 37 to make the content value and The content value of the mediation data object is consistent, and the data object to be changed is copied to the output area of the data object repository 37 (410);

Step 5: After the data output module 36 obtains the output data object information that needs to be changed, the data object is converted into the data storage type acceptable by the destination data server according to the data storage type of the destination data server (411);

Step 6: Finally, the transaction data is sent to the interface destination data server to complete the data synchronization (412).

The step of judging and linking the source data storage format includes:

Step 1: Determine the data storage type, connect the source data storage, and obtain the connection and storage type of the storage server by the connection setting;

Step 2: Link the database, which is connected to the source database by the server URL, account number, password, etc.

Step 3: Link the file, which is connected to the source file by the server URL, file directory, access account, password, etc.

Step 4: Link the directory, which is connected to the source directory by the server URL, port, root node (RDN), access account, password, and so on.

The intermediary data object setting step further includes:

Step 1: Obtain the catalog service data object format style, and extract the object format sample from the style library that describes the catalog service standard;

Step 2: Establish the name of the data object, establish the data object format according to the obtained sample, and name it;

Step 3: Create an attribute name: Dependently create a new data object, create an attribute according to the obtained sample and name it;

Step 4: Create an extended attribute name, create a new data object, and create a custom attribute with no relative description of the sample, and name it;

Step 5: setting the synchronization key value, and calculating the processing by one attribute or multiple attributes, as the correspondence of identifying the data objects to be synchronized;

Step 6: Access the mediation data object settings, and the completed settings are stored in the data storage body. The data storage body can be a database, a file, a directory, and the stored settings can be read and provided.

The intermediary data conversion module step further includes:

Step 1: Determine the existence of the intermediary data object, and search for the existence of the intermediary data in the data object repository;

Step 2: Establish intermediary data, and if the intermediary data object does not exist, establish an intermediary data object;

Step 3: Compare the data objects, and each newly converted data object is compared with the mediation object data by a synchronous key value;

Step 4: Update the mediation data object content value, synchronize the key value priority order, update the mediation data object content value, and record the difference data object.

The data synchronization system and method for establishing intermediary data in the directory service format provided by the present invention have the following advantages when compared with other conventional technologies:

1. The invention can reduce the development time of data synchronization between different information systems, and convert different data storage objects into uniform mediation data objects, so that the systems can be more easily integrated.

2. The system and method for the conversion of mediation data objects proposed by the present invention to complete heterogeneous data synchronization, combined with the catalogue service standard, to manage the intermediate data and the synchronous processing by object, so that the data synchronization program is more effective and standardized.

3. The system and method proposed by the present invention are flexible and can support data storage systems of different systems; and in addition to being a data synchronization system, it can also support synchronization with other data synchronization systems or programs.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

To sum up, this case is not only innovative in terms of technical thinking, but also able to enhance the above-mentioned multiple functions compared with conventional articles. It should fully comply with the statutory invention patent requirements of novelty and progressiveness, and apply in accordance with the law. I urge you to approve this article. Invention patent application, in order to invent invention, to the sense of virtue.

1. . . Computer network

2. . . Source data server group

3. . . Conversion mediation data object synchronization server

4. . . Destination data server group

31. . . Intermediary data object setting interface

32. . . Intermediary data object setting module

33. . . Data link and object conversion module

34. . . Intermediary data conversion module

35. . . Difference data transaction module

36. . . Data output module

37. . . Data object repository

38. . . Intermediary data query interface

321. . . Directory service object description style library

322. . . Intermediary object name creation module

323. . . Attribute name creation module

324. . . Sync key setting module

325. . . Extended attribute name creation module

326. . . Intermediary data object format storage module

1 is a schematic diagram of a network environment of a system for implementing a data synchronization system for establishing intermediary data in a directory service format;

2 is a schematic diagram of an intermediary data object synchronization server of a data synchronization system for establishing intermediary data in a directory service format according to the present invention;

FIG. 3 is a software structure diagram of a data synchronization method for establishing an intermediary data in a directory service format according to the present invention;

FIG. 4 is a flow chart of a data synchronization method for establishing intermediary data in a directory service format according to the present invention.

1. . . Computer network

2. . . Source data server group

3. . . Conversion mediation data object synchronization server

4. . . Destination data server group

Claims (9)

A data synchronization system for establishing intermediary data in a directory service format, comprising: a computer network, which is a medium for connecting a source data server, a conversion intermediary data object synchronization server, and a destination data server; a source data server , having one or more source data storages, and transferring the source data to the conversion intermediary data object synchronization server through the computer network for conversion; a conversion intermediary data object synchronization server receives the source data through the computer network The server transmits data to convert the source data into intermediary data, and records the object transaction information, and processes the transaction data according to the destination server data server to write the data storage type through the computer network. A destination data server receives the transaction data converted by the conversion intermediary data object synchronization server through the computer network, and converts the data into one or more destination data storages to synchronize the data of each data storage body. A data synchronization system for creating intermediary data in a directory service format as described in claim 1 of the patent application, wherein the data storage format may be a database, a directory service or a file. For example, the data synchronization system for establishing intermediary data in the directory service format according to the first application of the patent scope, wherein the conversion intermediary data object synchronization server has an intermediary data format setting of the directory service data format style library, and the directory service data format style thereof. The library can provide synchronization mediation data format setting according to the catalog service object description standard, and the mediation data format setting includes an intermediary object name creation module, an attribute name creation module, a synchronization key value setting module, an extended attribute name creation module, The intermediary data object format storage module and the directory service object description style library, and the setting results are stored in three storages of a database, a directory, and a file. For example, the data synchronization system for creating intermediary data in the directory service format according to the first application of the patent scope, wherein the intermediary data object synchronization server mainly comprises: an intermediary data object setting module, which conforms to the directory service description object format. , setting the format of the mediation data object for synchronization, and providing the data link and object conversion module, the mediation data conversion module, and the difference data transaction module as the reference for the synchronization process conversion data object; And the object conversion module, which can connect to the data source server group, or connect multiple data source servers, and the data storage type for different data sources, corresponding to the object format specification of the intermediary data object setting module, The data is converted into data objects, and the data objects are classified into the linked data objects and stored in the data object storage link area; an intermediary data conversion module is to establish an intermediary data object and identify the difference data, when the module receives the data from After the data link and the object conversion module are linked to the data object, To the data object storage intermediary area to find out whether the information object exists. If not, refer to the intermediary data object setting module, convert an intermediary data object to the intermediary area of the data object storage; if the connection data object is found, find the intermediary The data object already exists in the mediation area of the data object storage, and the priority value of the synchronization key value of the module is set according to the intermediary data object, and the intermediary data object of the data object storage is updated, and whether the data of the linked data object needs to be recorded is recorded. To the difference data transaction module; a difference data transaction module refers to the object format specification of the intermediary data object setting module 32, and receives the information of the transaction data item from the intermediary data conversion module, and then processes the data All the linked data objects in the object repository are consistent with the mediation data objects, and the data objects that need to be changed are copied to the output area of the data object storage, so that the data output module can obtain the output data information through the difference data transaction module. a data output module that obtains output by a differential data transaction module Material information, the data output module contains four types of data objects, such as text files, XML files, data files, and directories, to convert the output data objects into different types of data storage groups in the destination data server group. The format of the data received; a data repository for the data link and the object conversion module to store the data objects in the linked data object for the intermediary data conversion module to find out whether the data object exists or not, for the difference data transaction module Copying the changed data object to the data object repository and providing the intermediary data query interface to query the stored data object, and the data object storage library stores the source, the intermediary, and the output of the processed data object, and can also store the intermediary data object. The document format specification and data synchronization processing are required to be stored in the module. The storage object can be in the form of a database, a file or a directory. An intermediary data query interface is provided with a query interface for querying the data repository. Stored data items, including each linked data item, intermediary information The correspondence between the object and the output data object can facilitate the monitoring of the data synchronization status by querying the status of the data object. A data synchronization method for establishing intermediary data in a directory service format, the steps comprising: Step 1: determining and linking the source data storage format, linking the data source storage body and determining the data type; Step 2: setting and converting the corresponding intermediary data object to the link The data object, the data storage body is introduced, the corresponding media data object setting module sets the object format specification, and converts the data into the linked data object; Step 3: equalize the intermediary data object, and after the data object is established, if the mediation is established If the data object does not exist, an intermediary data object is created; if it exists, the information of the intermediate data object is determined by the set synchronization key value and priority setting information, and the object transaction information is recorded; Step 4: the transaction data item is changed. Perform transaction processing, update the linked data object, make its content value consistent with the content value of the intermediary data object, and output the data to be changed; Step 5: Convert the data object to the output data, and the output data object that needs to be changed depends on the destination end Data storage type of the data server, converted to the destination Acceptable material server movement information; Step 6: write object data storage member, movement of the object data into the data server interfacing, data synchronization is completed. For example, the data synchronization method for establishing intermediary data in the directory service format as described in item 5 of the patent application scope, wherein the data storage system of the step 2 may be a different data storage type of the database, the directory, and the file. For example, the data synchronization method for establishing intermediary data in the directory service format as described in claim 5, wherein the determining and linking source data storage format steps further comprises: Step 1: determining the data storage type, and connecting the source data storage Body, connect and store the storage server by connection setting Step 2: Link the database, which is the server URL, account number, password and other information to connect to the source database; Step 3: Link the file, the system Information such as server URL, file directory, access account, password, etc., to connect to the source file; Step 4: Link directory: server URL, port, root node (RDN), access Account, password and other information to connect to the source directory. The data synchronization method for establishing an intermediary data in a directory service format as described in claim 5, wherein the intermediary data object setting step further comprises: step 1: obtaining a directory service data object format style, and the description conforms to the directory service standard. In the style library, take out the object format sample; Step 2: Create the data object name, create the data object format according to the obtained sample, and name it; Step 3: Create the attribute name: Dependently create the new data object, create the attribute according to the obtained sample and name it. Step 4: Create an extended attribute name, follow the newly created data object, create a custom attribute with no relative description of the sample, and name it; Step 5: Set the synchronization key value, calculate and process with one attribute or multiple attributes, as identification needs Synchronize the correspondence of the data objects; Step 6: Access the mediation data object settings, and the completed settings are stored in the data storage body, and the data storage body can be a database, a file, a directory, and the stored settings can be read and provided. For example, the data synchronization method for establishing intermediary data in the directory service format as described in claim 5, wherein the intermediary data conversion module step further comprises: step 1: determining the existence of the intermediary data object, and searching for the intermediary data in the data object storage database. Whether it exists; Step 2: Establish intermediary data, if the intermediary data object does not exist, then establish an intermediary data object; Step 3: Compare the data object, each newly converted data object, and the intermediary object data are compared with the synchronization key value Step 4: Update the mediation data object content value, synchronize the key value priority order, update the mediation data object content value, and record the difference data object.