The scope of a diagram determines the relationships it displays. To view a diagram of the relationships, select the scope in the Scope drop-down and choose Scope > View Scope.
The Diagrammer provides default scopes that you can use for most analysis tasks, but you can create your own scopes if you like. You might want to exclude data stores from a data flow, or include source files in a call map. Use the Scope Editor to create your own scopes.