Availability is the first component of OEE and describes how often the machine or equipment has been available and how often it has failed. This also includes planned downtime, such as maintenance or cleaning. High availability means that the machine or plant was ready for use for much of the production time.
Performance efficiency is the second component of OEE and describes how effectively the machine or plant works when it is available. These include, for example, the speed of the machine or the frequency of downtimes. High performance efficiency means that the machine or plant works effectively and has as little downtime as possible.
The quality rate is the third component of OEE and describes the quality of the products produced, measured by the number of defective products in relation to the total production. A high quality rate means that the machine or plant is working effectively and producing high-quality products.