For this question the age of the machine will determine the capability of the controller.The older controllers may not have the profile or other capabilities needed for complex partsThe older machines may not have the high speed spindles needed for high speed milling / drillingScore:0 = Average machine age > 10 yrs old. Or not optimum for the type and volume of work done for AMAT1 = Average machine age 5 < 10 years old Or the some equipment , but not all is optimum for the work done for AMAT2 = Average machine age < 5 yrs old. Or the machines are all optimum for work done for AMAT"