There are three kinds of actions :
Non-reusable action : An action that can be called only in the test with which it is stored, and can be called only once.
Reusable action : An action that can be called multiple times by the test with which it is stored (the local test) as well as by other tests.
External action : A reusable action is stored with another test. External actions are read-only in the calling test, but you can choose to use a local, editable copy of the Data Table information for external action.
