You can import a PeopleSoft tree or create a tree source definition for a tree, depending on the tree type. You can only import strict-level trees. You can create a tree source definition for either strict-level or loose-level trees.

When you

create

a tree source definition, the Designer denormalizes the tree using vertical flattening. When you

import

a PeopleSoft tree, the Designer denormalizes the tree using horizontal flattening.