UML Action Language (UAL) models contain action language
code in addition to model diagram elements. You can execute the model
elements in the UAL and also the action language that the element
contains.
Before you begin
A model diagram that contains a UAL element must be opened.
Procedure
In the Debug view, click the Step Into icon 
.
Results
The
Step Into function executes the
UAL inside the element. The code is then displayed and the resulting
execution of the code is displayed in the console window. If you use
the
Step Into function on an element that does
not contain code, the
Step Into function behaves
like the
Step Through function.