You can analyze the impact of a change to an object (impact analysis) and identify the objects that take part in the definition of the object (lineage analysis) on any model object in the repository by selecting it in the Repository Explorer and clicking the Analysis tab.
By default, the analysis descends to only three levels of dependencies, but you can select more or fewer levels by selecting a number in the Analysis level list.
Note: By default, impact and lineage analyses launched from the PowerDesigner Portal use rule sets checked into the Library folder at the root of the repository.