🔗Data Lineage in Toucan

The data lineage feature in DataHub allows you to visualize relationships between datasources, datasets, homes, stories, and filter elements that fuel your applications/dashboards. This guide provides detailed information on how to access and interact with the data lineage UI.

Accessing Data Lineage

To access the data lineage view:

  1. Click on the lineage logo in the header of the DataHub interface.

Capture screen that shows how to access to the data lineage icon from the DataHub Interface, the icon is located at the top right of the UI
data lineage access

Default Display Elements

Capture screen that shows the data lineage view after clicking on the data lineage icon
Data lineage view

By default, the following elements are displayed:

  • Datasources

  • Datasets

  • Files

A menu bar is located at the bottom left of the screen to help you customize your view:

Capture screen that shows the menu bar with options to display /hide datasources, datasets, filters stories /home elements, center and zoom in/out
Menu bar
  • Zoom In/Out: Adjusts the size of the displayed elements.

  • Center: Recenters the display.

  • Display/Hide:

    • Datasources

    • Datasets

    • Filters

    • Stories and home elements

Mini map

A mini map is located at the bottom right of the screen to help you locate the elements displayed in the view

Capture screen that shows the mini map that is displayed in the data lineage UI
Mini map

Element Interaction

Clicking on an element opens a contextual menu with available actions:

For datasources, homes, stories, and filters:

  • Access and copy the ID of the element.

Capture screen that shows the file menu bar
file menu bar

For datasets:

  • Preview: Displays a preview of the dataset.

  • Edit (if applicable): Allows you to edit the dataset if it is editable.

  • Access and copy the ID of the element.

Capture screen that shows how to edit a dataset from the data lineage UI
dataset menu bar

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