Subject of this article is to highlight the importance of normalization and standardization in the clustering process. The values of each character as they are often the results of measurements in different units, and it can cause that some characters seem to be dominating a few other characters influenced the course of cluster analysis.

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The nature of the application of ABC/XYZ analysis lies in the use one of the simple tools of quality management. It is based on the Pareto Principle 20/80. It can be applied in a variety of modifications and various areas of the production value chain. This article is formulated as a case study of ABC/XYZ analysis in practice and its contribution to the development the company material portfolio.

The paper deals with optimization of the production process in a selected company. The proposal of elimination of bottlenecks that were revealed in the analysis of the production process is described here in this paper. For clarity and zooming of the production process models were processed in a simulation software module from Siemens PLM Software - Tecnomatix Plant Simulation. Improvement suggestions will help to reduce the time of production operations, to improve product quality, to facilitate the work of the staff and to increase economic efficiency of production. The application of PLM software enables companies to analyze and easily develop manufacturing processes in the future, or to build new processing lines and departments [4]. It will help to optimize the current state of workplace and will allow easier data management throughout the life cycle, not just within this particular company, but throughout the corporation to which the enterprise belongs.