The aim of the thesis is increasing of production in the assembly line producing steering column modules through designing a system for monitoring indicator of overall equipment effectiveness (OEE). The chapter called Indicator of Overall Equipment Effectiveness lists various ways of measuring the OEE, different types of downtime with the description and design calculations for this indicator. Further the chapter called Description of the proposed System for Measuring the OEE describes in detail the method of data collection and evaluation on the selected device. For this chapter follows chapter called Measurement Results and Recommendations which presents the evaluation of the measurements results, including performed optimizations and optimization suggestions, which would be appropriate to implement in the future. The thesis concludes with an economic evaluation of the proposed system.