Outliner
 
 
 

A window that lists the objects, lights, cameras, and other items in a scene.

You can use the Outliner to examine the structure and components of the scene hierarchy, display shape nodes, connections, and attributes, select and rename an object, and reorder nodes (that is, change the evaluation order).

Contrast with DAG.

In other software packages, also known as selection floater, object manager or schematic view.