7. The method of claim 6 , further including accessing one or more attributes provided via a reference to a call activity to characterize one or more parameters received as the one or more variables via the one or more arguments.
7. The method of claim 6 , further including accessing one or more attributes provided via a reference to a call activity to characterize one or more parameters received as the one or more variables via the one or more arguments. 8. The method of claim 7 , wherein the one or more attributes include a from-spec initializer adapted to initialize one or more of the one or more parameters, and wherein the from-spec initializer represents an optional attribute for optionally setting a default value for a parameter of the subprocess.