Analysis of quality management system in the dynamics

Abstract

Requirements of the international standards ISO 9000 necessitate developing methods for quantitative assessment of quality management systems (QMS). The QMS features indicate the need to study the characteristics of both processes and the system as a whole with their operation time. In this paper, it is proposed to apply the nonparametric statistical methods to assess QMS processes in the dynamics. Using these methods allows to evaluate the processes quality in the absence of information on the distribution law of quality index as a random variable. As a result, using nonparametric criteria to analyze process stationarity and randomness and identify a regular component of the QMS process functioning in the dynamics was substantiated. The technique and the algorithm for applying these criteria for processes quality assessment based on the QMS operation practice, which can be used by any company for quantitative assessment of the processes quality in the dynamics, their analysis and continuous improvement were proposed.