Measurement data are used more often and in many more ways today than in the past. Measurement data is used today to: -Monitor manufacturing processes -Monitor product quality -Determine corrective actions to take -Adjust manufacturing processes -Determine if relationships exist between variables -Model new systems The quality of the data from our measurement devices is critical to good decision making. This is the reason for Gage Studies, or Measurement Systems Analysis. There are several types of gage studies that we can perform, depending on the type of data and the method that the data is gathered.