Understanding the Three Pillars of OEE

To choose the right software platform, you must first understand how your target solution captures and calculates the underlying metrics. Availability measures the percentage of scheduled time that the operation is available to run, accounting for unplanned stops (breakdowns, tool changes) and planned stops (setup, adjustments). Software must accurately automate stop-reason logging to prevent operator bias.

Performance evaluates speed losses, reflecting whether equipment is running at its designed maximum speed or experiencing minor stops and reduced speed. Advanced automated OEE tools connect directly to PLCs or sensors to record cycle times instantly without relying on manual entry.

Quality tracks the proportion of good units produced out of the total units started. Integrating quality inspection logs or vision systems directly into the OEE pipeline ensures scrap and rework rates are fully accounted for in shift-level profitability.