Managing data classification - Cloud

Talend Cloud Data Catalog Administration Guide

Version
Cloud
Language
English (United States)
Product
Talend Cloud
Module
Talend Data Catalog
Content
Administration and Monitoring
Data Governance

Once you have data classes defined, you can apply them to harvested data elements:
  • Manually: You apply the data-detected classes from the object details pages or multiple at the same time using a worksheet.
  • Automatically: You invoke a data classification process where data classes are proposed based on the patterns and metadata queries defined for the different data classes. The automatic data classification process can be initiated during the model harvesting or using the Classify Data feature.

    After there are data classes proposed, you can approve or remove the suggestions.

You have been assigned an object role with the Data Classification Editing capability.

Proposal approval process

When the data classification is done automatically, you have to approve or reject the suggestions made by Talend Cloud Data Catalog. The proposed data classes appear in the Data Classifications area in the Overview tab of the object details page.

The inferred data classes greater than the percentage defined in the Matching Threshold field are suggested in the Data Classifications area. By default, the Matching Threshold field is set to 50%. It means that the inferred data classes greater than 50% are suggested by default.
  • When approving the assignment, Talend Cloud Data Catalog creates the "classifies" relationship between the data class and the imported object. It creates the same relationship when you assign a data class to an imported object manually.
  • When rejecting the assignment, Talend Cloud Data Catalog will remember this action and will never assign this data class to the object in the future automatic data classification of that object.

Editing the data classifications manually from each object details page

  • Click the tick to approve the suggestion.

    When approving the assignment, the state of that data class assignment changes to approved.

  • Click the cross to reject the suggestion.

    When rejecting the assignment, Talend Cloud Data Catalog will remember this action and will never assign this data class to the object in the future automatic data classification of that object.

    To revert a rejection, you need to re-assign manually the data class.

  • Remove the data class from the list to remove the assignment without rejecting it.

    When removing a suggestion, Talend Cloud Data Catalog will not remember this action and will assign the data class to the object in the future automatic data classification of that object.

Editing the data classifications manually in a worksheet

You must include the Data Classifications column in the worksheet.

You can also add the Data Classifications Approved, Data Classifications Matched and Data Classifications Rejected columns.