CN112286879A - Metadata-based data asset construction method and device - Google Patents
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Abstract
A data asset construction method and device based on metadata are disclosed, the data asset construction method based on metadata comprises the following steps: acquiring selection input of a user aiming at different service blocks, wherein the different service blocks comprise combinations of different service metadata, and the selection input comprises part of the service metadata in the different service blocks; determining data to be extracted in service data tables corresponding to different service blocks according to the selection input, wherein the service data tables comprise service metadata and numerical values corresponding to the service metadata; and extracting the data to be extracted and displaying the data to be extracted to the user. The technical scheme of the invention can improve the convenience of metadata use.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a data asset construction method and device based on metadata.
Background
Metadata is data describing data, and is used for describing, explaining and positioning a certain information resource, so that the information resource is easy to extract and use. The quick identification and positioning, the efficient and ordered management and the intelligent and convenient application of mass data assets are efficiently supported through metadata management, so that a decision maker knows the general situation of the data assets, a manager knows the healthy running condition of the data assets, and a user knows the coming and going pulse of the data assets.
The metadata includes business metadata, technical metadata, and management metadata. The current metadata management platform can generate corresponding service metadata and technical metadata according to specific services of users.
However, currently, a user can only use service metadata and technical metadata of a specific category generated by a metadata management platform, and when the user has personalized requirements, for example, needs to combine part of metadata under multiple service categories, all metadata under the service categories can be displayed; in addition, data needs to be extracted from a plurality of source form data and displayed to a user, response time is long, and inconvenience is brought to the user.
Disclosure of Invention
The technical problem solved by the invention is how to improve the convenience of metadata use.
In order to solve the above technical problem, an embodiment of the present invention provides a data asset construction method based on metadata, where the data asset construction method based on metadata includes: acquiring selection input of a user aiming at different service blocks, wherein the different service blocks comprise combinations of different service metadata, and the selection input comprises part of the service metadata in the different service blocks; determining data to be extracted in service data tables corresponding to different service blocks according to the selection input, wherein the service data tables comprise service metadata and numerical values corresponding to the service metadata; and extracting the data to be extracted and displaying the data to be extracted to the user.
Optionally, after the obtaining of the selection input of the user for different service blocks, the method further includes: and sorting the selected input to form derived metadata, and storing the derived metadata in a metadata database, wherein the metadata database also stores service blocks.
Optionally, the method for constructing a data asset based on metadata further includes: receiving a creation request of the user for the derived metadata; creating a new service block in response to the creation request in accordance with the selection input, the new service block including all service metadata in the selection input.
Optionally, the method for constructing a data asset based on metadata further includes: receiving a creation request of the user for the selection input; creating a new service block in response to the creation request in accordance with the selection input, the new service block including all service metadata in the selection input.
Optionally, the method for constructing a data asset based on metadata further includes: creating a derivative table according to the new service block, wherein the derivative table comprises service metadata in the new service block; determining a corresponding numerical value in a target database according to the service metadata in the new service block; and filling the corresponding numerical value into the derivative table to be used as a service data table corresponding to the new service block.
Optionally, the creating a new service block according to the selection input in response to the creation request includes: detecting whether the creation request passes the approval; and if the approval is passed, responding to the creation request and creating a new service block according to the selection input.
Optionally, after creating a new service block according to the selection input in response to the creation request, the method further includes: establishing new technical metadata in response to the creation request, the technical metadata corresponding to a plurality of business metadata in the selection input.
In order to solve the above technical problem, an embodiment of the present invention further discloses a data creating apparatus, where the data creating apparatus includes: the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring selection input of a user aiming at different service blocks, the different service blocks comprise combinations of different service metadata, and the selection input comprises part of the service metadata in the different service blocks; the data to be extracted determining module is used for determining data to be extracted in service data tables corresponding to different service blocks according to the selection input, and each service data table comprises service metadata and a numerical value corresponding to the service metadata; and the extraction module is used for extracting the data to be extracted and displaying the data to the user.
The embodiment of the invention also discloses a metadata management system, which comprises: the meta-model creating module is used for determining model parameters according to user input and creating a meta-model according to the model parameters; the metadata acquisition module is used for extracting corresponding metadata from a target database according to the meta-model, wherein the metadata comprises business metadata and technical metadata; the data creation apparatus of claim 8.
The embodiment of the invention also discloses a storage medium, wherein a computer program is stored on the storage medium, and the computer program is executed by a processor to execute the steps of the data asset construction method based on the metadata.
The embodiment of the invention also discloses a terminal which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the processor executes the steps of the metadata-based data asset construction method when running the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the technical scheme of the invention obtains the selection input of a user aiming at different service blocks, wherein the selection input comprises part of service metadata in the different service blocks, and the different service blocks comprise the combination of the different service metadata; determining data to be extracted in service data tables corresponding to different service blocks according to the selection input, wherein the service data tables comprise service metadata and numerical values corresponding to the service metadata; and extracting the data to be extracted and displaying the data to be extracted to the user. The technical scheme of the invention is based on the selection input of the user, can combine the service metadata from different service blocks selected by the user, and extract the corresponding data for display, and can meet the diversified user-defined requirements of the user; and the operation is simple, and the convenience of using the metadata is improved.
And further, sorting the selected input to form derivative metadata, and storing the derivative metadata in a metadata database, wherein the metadata database also stores the service blocks. According to the technical scheme, the derivative metadata are formed, so that a user can directly check and use the service metadata combination in the derivative metadata, a series of operations such as selection and input during each use are avoided, and the convenience of metadata use is further improved.
Further, receiving a creation request of the user for the selection input or derived metadata; creating a new service block in response to the creation request in accordance with the selection input, the new service block including all service metadata in the selection input. According to the technical scheme, the new service block is created, the new service block can have an independent corresponding service data table in the target data, and data are prevented from being extracted from a plurality of service data tables each time a user uses service metadata in the new service block for combination, so that the data extraction efficiency is high, the data display efficiency is improved, and the user experience is improved.
Drawings
FIG. 1 is a flow diagram of a method for metadata-based construction of data assets in accordance with an embodiment of the present invention;
FIG. 2 is a flow diagram of another metadata-based data asset construction method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a data creation apparatus according to an embodiment of the present invention.
Detailed Description
As described in the background art, currently, a user can only use service metadata and technical metadata of a specific category generated by a metadata management platform, and when the user has personalized requirements, for example, needs to combine part of metadata under multiple service categories, all metadata under the service categories are displayed; in addition, data needs to be extracted from a plurality of source form data and displayed to a user, response time is long, and inconvenience is brought to the user.
The technical scheme of the invention is based on the selection input of the user, can combine the service metadata from different service blocks selected by the user, and extract the corresponding data for display, and can meet the diversified user-defined requirements of the user; and the operation is simple, and the convenience of using the metadata is improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
FIG. 1 is a flow chart of a method for metadata-based data asset construction according to an embodiment of the present invention.
The metadata-based data asset construction method may include the steps of:
step S101: acquiring selection input of a user aiming at different service blocks, wherein the different service blocks comprise combinations of different service metadata, and the selection input comprises part of the service metadata in the different service blocks;
step S102: determining data to be extracted in service data tables corresponding to different service blocks according to the selection input, wherein the service data tables comprise service metadata and numerical values corresponding to the service metadata;
step S103: and extracting the data to be extracted and displaying the data to be extracted to the user.
It should be noted that the sequence numbers of the steps in this embodiment do not represent a limitation on the execution sequence of the steps.
The technical metadata referred to in this embodiment may refer to a data structure of metadata, such as: database, table, column, view, etc. The service metadata may be a description of a module or function corresponding to the user's service system. The business personnel or non-professional personnel can more clearly learn which business data exist in the business system through the business metadata, and the data is more business and visual.
In this embodiment, different service blocks include combinations of different service metadata. For example, the service block a includes service metadata a1, a2, A3; the service block B comprises service metadata B1, B2 and B3; the service block C includes service metadata C1, C2, C3. The service blocks may be created by the metadata management system according to the user's specific service classification.
It is understood that different service blocks have different combinations of service metadata, and different service blocks may also include the same service metadata, for example, service block 1 and service block 2 both include service metadata E, and besides, service block 1 also includes service metadata F, and service block 2 also includes service metadata G.
When a user has a different metadata composition requirement than the business blocks created by the metadata management system, business metadata may be selected for composition in a visualization interface provided by the metadata management system. That is, in step S101, the selection input of the user may be selection operation data of part of the service metadata in each service block. The combination of the service metadata included in the selection input, that is, the combination of part of the service metadata in the different service blocks, is different from the combination of the service metadata in any one of the different service blocks.
For example, for the above-described service blocks A, B and C, the service metadata included in the user's selection input may include service metadata a1, B2, and C3 in a combination different from the service metadata combination included in any of the service blocks A, B and C.
Further, in the specific implementation of step S102 and step S103, data can be extracted for the combination of the service metadata selected by the user for presentation. Specifically, the service blocks correspond to service data tables one to one, the service data tables may be stored in a database of a service system, the service system is a system used by a user, and the metadata management platform may be coupled to the service system to obtain data from the database of the service system.
As described above, since the service blocks correspond to the service data tables one to one, and the metadata combination in the selection input is from different service blocks, the data to be extracted needs to be determined from the service data tables corresponding to different service blocks.
It should be noted that the process of extracting data may be any practicable extraction technology, such as data warehouse technology (Extract, transform, load, ETL), and the like, and the embodiment of the present invention is not limited thereto.
The embodiment of the invention can combine the service metadata from different service blocks selected by the user based on the selection input of the user, and extract the corresponding data for display, thereby meeting the diversified user-defined requirements of the user; and the operation is simple, and the convenience of using the metadata is improved.
In a preferred embodiment of the present invention, the step S101 shown in fig. 1 may further include the following steps: and sorting the selected input to form derived metadata, and storing the derived metadata in a metadata database, wherein the metadata database also stores service blocks.
The derived metadata in the embodiment of the invention can be customized data information according to the needs of enterprise personnel.
In this embodiment, the derived metadata may comprise a combination of business metadata in the selection input. Specifically, when generating the derived metadata, the service metadata may be combined and stored as a table structure as the derived metadata. After the derived metadata is formed, the user can directly select to view the data corresponding to the business metadata contained in the derived metadata.
By forming the derived metadata, the embodiment of the invention can enable a user to directly check and use the service metadata combination in the derived metadata, avoid a series of operations such as selection, input and the like during each use and further improve the convenience of metadata use.
In one specific example, there are the following business blocks in a hospital's business system: personnel information module, operation module and see a doctor module. The data in each business block is different, and if doctors need to check different information of patients, the doctors need to check the different information in different business blocks respectively, which is time-consuming and tedious. The doctor can extract the data information concerned by the doctor from the modules of personnel, operation, treatment and the like in the business block through the metadata management system, the data information is created into derivative metadata, and after the derivative metadata is created, the doctor only needs to check the currently created metadata and the data corresponding to the metadata in the derivative metadata management system. And the metadata management system can acquire corresponding data information from the database of the corresponding service system in real time according to the derived metadata information.
In a preferred embodiment of the present invention, referring to fig. 2, after step S103 shown in fig. 1, the method may further include:
step S201: receiving a creation request of the user for the derived metadata;
step S202: creating a new service block in response to the creation request in accordance with the selection input, the new service block including all service metadata in the selection input.
As described above, the service blocks correspond to the service data tables one to one, so that the subsequent users can conveniently check the use data, the data extraction speed is increased, and a new service block can be established for the derived metadata, so that an independent service data table is allocated to the new service block.
In a specific implementation, a user may initiate a creation request in a visualization interface provided by the metadata management system, and the metadata management system may be able to create a new business block in response to the creation request. The embodiment can enable the user to customize the service block, so that the service block in the metadata management system, namely the metadata combination, is diversified.
Further, the method shown in fig. 2 may further include the following steps:
step S203: creating a derivative table according to the new service block, wherein the derivative table comprises service metadata in the new service block;
step S204: determining a corresponding numerical value in a target database according to the service metadata in the new service block;
step S205: and filling the corresponding numerical value into the derivative table to be used as a service data table corresponding to the new service block.
In this embodiment, the table structure of the derived table is the service metadata in the new service block. The specific values in the derivative table may be determined in the target database. For example, for a new service block D that contains metadata a1 in service block a, metadata B2 in service block B, and metadata C3 in service block C, the data in the derivative table corresponding to the new service block D may come from the service data tables corresponding to service block a, service block B, and service block C.
The service data tables corresponding to all the service blocks are stored in a target database, and the target database is a database of a service system used by a user.
According to the embodiment of the invention, the new service block is created, so that the new service block has an independent corresponding service data table in the target data, and the data is prevented from being extracted from a plurality of service data tables each time a user uses service metadata in the new service block for combination, so that the data extraction efficiency is high, the data display efficiency is improved, and the user experience is improved.
In an alternative embodiment, step S201 may be replaced by the following steps: receiving a creation request of the user for the selection input.
Different from the foregoing embodiment in which the derived metadata is first formed and then a new service block is created, in the embodiment of the present invention, a user may directly request for a selection input to create a new service block.
In an embodiment of the present invention, step S202 shown in fig. 2 may include the following steps:
detecting whether the creation request passes the approval;
and if the approval is passed, responding to the creation request and creating a new service block according to the selection input.
In this embodiment, after the user initiates the creation request, the user needs to go through the approval of the middle staff to create a new service block, so as to ensure the security of creating the service block. That is, after the user initiates the creation request, the metadata management system does not immediately respond to the creation request to create a new service block, but continues to monitor whether there is an approval operation, and if the approval operation passes, creates a new service block. Otherwise, the metadata management system will not respond to the create request, i.e., perform no operation.
More specifically, the metadata management system may provide a visual interface for an approver to perform an approval operation, and an approval result is fed back to the metadata management system, so that the metadata management system determines whether to create a new service block according to the approval result.
In a specific example, when a doctor user considers that currently created derived metadata needs to become a business module of a hospital, the doctor user can initiate a creation request on a derived metadata page, and after the application is passed, a metadata management system can automatically create corresponding derived metadata into a derived table and store the derived table in a specified target database; the metadata management system can also create technical metadata and service metadata, and then synchronize data to a newly created data table at regular time through an ETL task, so that enterprises can customize own service modules in a personalized way.
In an embodiment of the present invention, step S202 shown in fig. 2 may be followed by the following steps: establishing new technical metadata in response to the creation request, the technical metadata corresponding to a plurality of business metadata in the selection input.
In this embodiment, the technical metadata and the data tables in the target database are also in one-to-one correspondence. After the new service block is established, corresponding technical metadata needs to be established for the service block. In particular, new technical metadata may be established in the metadata database. New technical metadata may correspond to the derivative table.
The process of establishing the technical metadata and the corresponding data table may refer to the process of establishing the derived metadata and the corresponding service data table, which is not limited in this embodiment of the present invention.
Referring to fig. 3, an embodiment of the present invention further discloses a structural diagram of a data creating apparatus.
The data creation apparatus 30 may include an acquisition module 301, a data to be extracted determination module 302, and an extraction module 303.
The obtaining module 301 is configured to obtain selection inputs of users for different service blocks, where the different service blocks include combinations of different service metadata, and the selection inputs include partial service metadata in the different service blocks; the to-be-extracted data determining module 302 is configured to determine data to be extracted in service data tables corresponding to different service blocks according to the selection input, where the service data tables include service metadata and values corresponding to the service metadata; the extraction module 303 is configured to extract the data to be extracted and display the data to the user.
The embodiment of the invention can combine the service metadata from different service blocks selected by the user based on the selection input of the user, and extract the corresponding data for display, thereby meeting the diversified user-defined requirements of the user; and the operation is simple, and the convenience of using the metadata is improved.
For more details of the operation principle and the operation mode of the data creation apparatus 30, reference may be made to the relevant descriptions in fig. 1 to fig. 2, which are not described herein again.
The embodiment of the invention also discloses a metadata management system, which can comprise a metadata model creation module, a metadata acquisition module and a data creation device 30 shown in fig. 3.
The meta-model creating module is used for determining model parameters according to user input and creating a meta-model according to the model parameters; the metadata acquisition module is used for extracting corresponding metadata from a target database according to the meta-model, and the metadata comprises service metadata and technical metadata;
in a specific implementation, a user can customize the model parameters and form a meta-model, and the meta-model comprises the model parameters input by the user. The model parameters may be user-defined metadata names. A user may create a meta-model for a database, table, field, etc. For example, where the meta-model type is a database, the meta-model parameters may include a database size, a port number, and the like.
After the meta-model is built, the meta-data collection module may extract corresponding data from the target database according to model parameters in the meta-model to form final meta-data.
The service metadata and the technical metadata related in the data creation device 30 are formed by a meta model creation module and a metadata collection module.
The embodiment of the invention also discloses a storage medium, which is a computer-readable storage medium and stores a computer program thereon, and the computer program can execute the steps of the method shown in fig. 1 or fig. 2 when running. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile memory (non-volatile) or a non-transitory memory (non-transient), and the like.
The embodiment of the invention also discloses a terminal which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when running the computer program, may perform the steps of the method shown in fig. 1 or fig. 2. The terminal includes, but is not limited to, a mobile phone, a computer, a tablet computer and other terminal devices.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A method for constructing data assets based on metadata, comprising:
acquiring selection input of a user aiming at different service blocks, wherein the different service blocks comprise combinations of different service metadata, and the selection input comprises part of the service metadata in the different service blocks;
determining data to be extracted in service data tables corresponding to different service blocks according to the selection input, wherein the service data tables comprise service metadata and numerical values corresponding to the service metadata;
and extracting the data to be extracted and displaying the data to be extracted to the user.
2. The method of claim 1, wherein the obtaining user selection inputs for different business blocks is further followed by:
and sorting the selected input to form derived metadata, and storing the derived metadata in a metadata database, wherein the metadata database also stores service blocks.
3. The metadata-based data asset construction method of claim 2, further comprising:
receiving a creation request of the user for the derived metadata;
creating a new service block in response to the creation request in accordance with the selection input, the new service block including all service metadata in the selection input.
4. The metadata-based data asset construction method of claim 1, further comprising:
receiving a creation request of the user for the selection input;
creating a new service block in response to the creation request in accordance with the selection input, the new service block including all service metadata in the selection input.
5. The metadata-based data asset construction method according to claim 3 or 4, further comprising:
creating a derivative table according to the new service block, wherein the derivative table comprises service metadata in the new service block;
determining a corresponding numerical value in a target database according to the service metadata in the new service block;
and filling the corresponding numerical value into the derivative table to be used as a service data table corresponding to the new service block.
6. The metadata-based data asset construction method according to claim 3 or 4, wherein said creating a new service block according to said selection input in response to said creation request comprises:
detecting whether the creation request passes the approval;
and if the approval is passed, responding to the creation request and creating a new service block according to the selection input.
7. The metadata-based data asset construction method according to claim 3 or 4, wherein said creating a new business block according to said selection input in response to said creation request further comprises: establishing new technical metadata in response to the creation request, the technical metadata corresponding to a plurality of business metadata in the selection input.
8. A data creation apparatus, comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring selection input of a user aiming at different service blocks, the different service blocks comprise combinations of different service metadata, and the selection input comprises part of the service metadata in the different service blocks;
the data to be extracted determining module is used for determining data to be extracted in service data tables corresponding to different service blocks according to the selection input, and each service data table comprises service metadata and a numerical value corresponding to the service metadata;
and the extraction module is used for extracting the data to be extracted and displaying the data to the user.
9. A metadata management system, comprising:
the meta-model creating module is used for determining model parameters according to user input and creating a meta-model according to the model parameters;
the metadata acquisition module is used for extracting corresponding metadata from a target database according to the meta-model, wherein the metadata comprises business metadata and technical metadata;
the data creation apparatus of claim 8.
10. A storage medium having stored thereon a computer program for performing the steps of the metadata-based data asset construction method according to any one of claims 1 to 7 when the computer program is executed by a processor.
11. A terminal comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the metadata-based data asset construction method of any of claims 1 to 7.
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