Probability to possibility transformation as a way to standardize description of systematic and randoms errors

. From the point of view of the probabilistic model, measurement is described as a selection from sample set (set of elementary events). In the framework of fuzzy variable approach the possibility measure describes the degree of adjustment of the standards to the object being measured. On the other side fuzzy approach is better than probabilistic to describe the measurement process. To comply with the GUM recommendations, a transformation of probability to possibility is proposed, in which expanded uncertainty is maintained. In this way, both types of uncertainties are determined within one fuzzy model