OEE (Overall Equipment Efficiency) is a percentage ratio used to measure the productive effectiveness of industrial machinery.

OEE's advantage over other ratios is that it measures, in just one indicator, all the fundamental
parameters in industrial production: availability, effectiveness and quality.

Having an OEE of, for example, 53% means that out of 100 good pieces that the machine could
have produced, it has only produced 53.

The analysis of the three factors that make up the OEE makes it possible to know, if what is missing up to 100%, has been lost due to availability (the machinery was stopped during a certain period of time), effectiveness (the machinery was operating below its total capacity) or quality (defective parts have been produced ).