36. The system of claim 35 wherein the modifying step comprises: identifying at least one parameter corresponding to the at least one behavior; locating, in the first file, a current value of each of the at least one parameter in the text corresponding to the at least one behavior; for each of said at least one parameter, receiving a new value; and for each of said at least one parameter, substituting, in the text corresponding to the at least one behavior, the new value for the current value, in the first file.
37. The system of claim 36 additionally comprising, for at least one of the at least one parameter, verifying the new value received.