1. Establish objectives and standards: the control process begins with planning, when performance objectives and standards to be measured are then set. Performance objectives should represent key (essential) results that must be accomplished. 2. Measure actual performance: the goal is to accurately measure the performance results (output standards) and/or the performance efforts (input standards). Measurement must be accurate enough to pinpoint significant differences between what is actually obtained and what was originally planned. In maintenance performance measurements, the following indices assist in setting targets and assessing if they are met or not: (a) Production Indices: Quality rate (QR) = (Units produced within specifications)/(Total units produced). Process rate (PR) = (Speed of machine operation)/(Design speed) Machine Utilization (U) = (Actual production achieved (hrs)/(Total scheduled hours) Percentage lost production due to causes other than Maintenance= (Lost production hours due to causes other than breakdowns)/(Total lost production hours) (b) Maintenance Indices: Overall equipment effectiveness (OEE) = U*PR*QR Percentage of lost production hours due to breakdown = (Lost production hours due to breakdown)/(Total lost production hours) Mean time between failures (MTBF) = (Number of available operating hours)/(Number of breakdowns)