Model Refactoring;
Objective Max ENB = EV(NB);
Objective Min LP=Pr(NB <0);
NB = Benefit - Cost;
Benefit = decision("Architecture choice"){
	"As-is" 	: normalCI(1, 9);
	"Refactoring" : normalCI(0.9, 1.1);
}
Cost = decision("Architecture choice"){
	"As-is" : normalCI(1, 5);
	"Refactoring" : normalCI(0, 0);
}