Lineage and impact analysis
Before editing an entity or attribute, you may want to see which other entities/attributes in the entity’s/attribute’s lineage will be impacted by the change. For example, removing the "Discount" attribute from a table will affect the "Total Price". Additionally, a single attribute may have different names depending on its location.
Places where you can view lineage in Compose:
- The Manage Model window described below.
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The Display Model window described in Displaying the model.
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When editing a data mart. For more information, see Managing data marts.
Top-level entities in the data mart fact will not be shown in the lineage. For example, if both the Orders and Order Details entities are used in a Fact, the Model lineage for Orders will show Order Details but not Orders.
To view the lineage of an entity or attribute:
-
Click the Manage button in the bottom left of the Model panel.
The Manage Model window opens.
- Display the lineage as described below:
| To | Do This |
|---|---|
|
Show an entity’s lineage |
Select the entity and select Show Lineage from the drop-down menu in the Entity toolbar. |
|
Show an attribute’s lineage |
Select the attribute and click the Show Lineage button in the Attribute toolbar. |