OEE loss trees: make availability, performance, and quality actionable
Why one OEE percentage is not a diagnosis, and how a loss tree turns downtime, speed loss, and defects into work the plant can actually prioritize.
OEE
Availability × performance × quality.
Overall equipment effectiveness: availability × performance × quality. The standard rollup of how much good product an asset made versus its theoretical maximum. Simple to define, easy to game — agree on the loss categories first.
Use the concept: Downtime log template · SMED changeover observation template · Takt time calculator
In depth
SCADA, MES, and historian: where each one ends
Three systems that all "collect plant data" but answer different questions. Boundaries, handoffs, and how to stop buying two of them for one job.
MTConnect: getting data off the machine tool
Adapters, agents, and streams — how the open machine-tool connectivity standard works and where it fits beside OPC UA.