Managing data classes
Predefined data classes and data class groups that are provided by Watson Knowledge Catalog are automatically installed with Watson Knowledge Catalog. In addition to predefined data classes, you can create and manage your own data classes in Watson Knowledge Catalog.
Required permissions
To author a data class, you must have this user permission:
- Access governance artifacts
Additionally, you must have one of these category collaborator roles in the primary category for the data class:
- Admin
- Owner
- Editor
- A custom role with the permission to create data classes.
Open Governance > Data classes, then create your own data class:
- Click New data class to create a new data class and complete the information about it. Data classes can have the same name if they are in different categories. Only business terms and classifications that have been published can be selected when you create a data class.
- Click Save as draft. The data class information is now ready for refining or you can click Publish to send it for approval according to your workflow definition.
Inactive data classes can be used to specify actions, for example, classifying data automatically, but do not contribute to any action until they become active.
You cannot use draft data classes to specify data matching or for any other action. By default, the data class is published if you send it for approval.
Data class definition
Open a data class and click or edit next to the field you want to change.
You can provide the following information to define your data class:
-
Add an example for the data class in the Example property. If you specify a data class named
City-New
, the example could beLondon
. -
Assign this data class to a primary category and optionally to secondary categories.
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Add dependent data classes. You can only select data classes from the same parent category. Data classes with already assigned parent data classes will be overwritten.
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Edit custom attributes that provide additional information in the Details section.
Custom attributes can be created using the Watson Knowledge Catalog API. If any custom relationship types are defined, they are also shown here. Inverse relationships show up in the other artifact after you publish the artifact where you created the relationship. -
Use data matching to organize database columns and data file fields for review and subsequent column analysis work. For example, database columns with numeric data typically include numbers within a range of valid values.
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Enable or disable a data class. To enable data class, you need to enable data matching. A data class with data matching method enabled is treated as enabled data class and a data class where data matching method is disabled is treated as a disabled data class.
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Choose the priority of a data class to determine which data class candidate should become the inferred data class of a field. Only data classes with confidence above threshold are considered. See Priority.
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Specify related artifacts. The classifications and business terms that you add here are suggestions for columns to which the data class is assigned.
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Add other related content.
Refer to the general information on managing governance artifacts.
Learn more
Parent topic: Data classes