Type Attributes in Rules
Specialized rules must have a type attribute so that they can be selected from dropdown menus throughout the application. Each specialized type also has its own set of input and output variables and, optionally, a return value.
In each area where you can select a rule, you are limited to choosing (or creating) rules of the type that is appropriate to the feature. For example, in the Edit Policy page, the Policy Owner rule dropdown only lets you choose rules of the type "PolicyOwner."
The rule type is shown in both the Rule Editor, and in the rule's signature in the Debug pages.