The scope configuration model allows you to bundle multiple tiers into a scope, and apply transaction detection rules to that scope.

You can apply a rule to select tiers all at once. The Default Scope consists of all the tiers in the application.

In the diagram, you want to apply a rule to three of the six tiers in an application. Rather than manually applying the rule to each of the three tiers, you can bundle the tiers into a scope (Scope A) and apply the rule to the scope.