Analysis of a measurement process in the field of variability

The paper deals with the analysis of a measurement process in the field of the variability in the measurement process. In the beginning it defines some variability sources in the measurement process, more precisely in the measurement process setting. These variability sources are then included in a controlled experiment and they are analyzed. The purpose of the paper is the evaluation which variability sources in the measurement system are really relevant from the operational measurement point of view.