RT Journal Article SR Electronic A1 Sujová, Erika A1 Vysloužilová, Daniela A1 Babic, Ivan T1 Proposal for Evaluating the Efficiency of Production Processes Using External and Internal Key Performance Indicators JF Manufacturing Technology Journal YR 2024 VO 24 IS 3 SP 440 OP 447 DO 10.21062/mft.2024.050 UL https://journalmt.com/artkey/mft-202403-0010.php AB The paper focuses on proposing a method for implementing key performance indicators (KPIs) to assess the effectiveness of manufacturing processes. For the evaluated processes of precision parts machining, the share of non-conforming products was proposed as a KPI, evaluated as both an exter-nal and an internal indicator. The external indicator EXTppm expressed the quantity of faulty prod-ucts to the volume of production. Its monthly development during 2022 was evaluated. The internal KPI represented the internal share of non-conforming products INTppm during 2022 which was re-lated to the order of part A. Towards the conclusion causes for not attaining the targeted KPI values are pinpointed, and recommendations are put forth to enhance the productivity of manufacturing processes.