In PeopleSoft, you can use levels in a tree. PeopleSoft uses levels to define and organize the relationship between different nodes. The use of levels in a PeopleSoft tree can either be strictly enforced, loosely enforced, or not used.
PowerExchange for PeopleSoft extracts data from the following trees:
Strict-level trees.
A PeopleSoft tree with strictly enforced levels. All nodes at a particular level represent the same kind of information.
Loose-level trees.
A PeopleSoft tree with loosely enforced levels. Each level can contain nodes with different kinds of information.