摘要：AbstractIncreasing the efficiency and effectiveness of maintenance processes is a constant goal of production companies. The elimination of unexpected failures that generate excessive costs and production losses is emphasized. Not only the selection of an appropriate maintenance strategy, but also the use of appropriate methods and tools to support the decision-making process in this area, are also elements that affect the maintenance efficiency. The article presents the possibility of using the Six Sigma methodology to improve the efficiency of the maintenance process. For this purpose, qualitative and quantitative research methods were used to analyze the results obtained from the company's case study. Additionally, the statistical analysis of the obtained results allowed to identify the factors influencing the effectiveness of the maintenance process. the number and duration of the failures, thus increase the availability machines in production process and determination of activities which should be implemented to improve the maintenance processes.
