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Use OEE by workstation to analyze a workstation during a specific period. The view separates results into occupancy, availability, performance, and quality.

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Review OEE

Path: Smart Factory > Dashboards > OEE by workstation

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1. Choose the workstation and period

Filter by workstation and the interval you want to analyze.

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2. Interpret results

Compare components to identify where losses are concentrated.

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Occupancy

Measures the share of the selected period planned for production, after deducting planned downtime. How is it calculated? Occupancy (%) = (Planned production time / Total period time) * 100
  • Planned production time: the workstation’s scheduled time minus planned downtime that stopped it. The summary shows it as Productive.
  • Total period time: the entire selected interval, including hours outside the shift. The summary shows it as Total.
What does low occupancy mean? Lower occupancy means a smaller share of the period was planned for production. Review:
  • Hours outside the shift: the period may include nights, weekends, or other windows without scheduled activity.
  • Planned downtime: planned breaks or maintenance reduce the time planned for production.
  • Shift configuration: check that the workstation’s schedule reflects the windows when it should work.
To see how much of that time was actually used, check Availability.

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Availability

Measures the share of planned production time with operations running within the shift. How is it calculated? Availability (%) = (Actual operating time / Planned production time) * 100
  • Actual operating time: time with operations running within the shift. The summary shows it as Running.
  • Planned production time: the workstation’s scheduled time minus planned downtime that stopped it. The summary shows it as Productive.
Unplanned stops and time without running operations reduce availability. Work outside the shift appears separately as Running (unscheduled). What does low availability mean? A low value indicates that the workstation spends too much time stopped and is not producing when it should. Main causes commonly include:
  • Breakdowns, technical failures, or setup recorded as unplanned stops.
  • Waiting for materials, tools, or a previous operation.
  • Time without running operations due to insufficient workload or staff.
  • Incomplete records: if operators forget to pause or resume operations, downtime may be recorded as productive time or the reverse.

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Performance

Measures actual manufacturing speed compared with the standard theoretical speed or time defined in the recipe or process. How is it calculated? Performance (%) = (Theoretical time / Actual production time) * 100
  • Theoretical time: obtained by multiplying produced quantity by the standard time defined in the recipe or process, adjusted for the workstation’s assigned efficiency.
  • Actual production time: sum of recorded durations while the order was running.
What does low performance mean? A low value indicates that the machine or operator works below expected capacity. Main causes commonly include:
  • Reduced speeds due to machine or equipment wear.
  • Recurring small stops that are not formally recorded.
  • Overly demanding theoretical time or standard speed.

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Quality

Measures good pieces as a percentage of all pieces produced (good + rejected). How is it calculated? Quality (%) = (Good unit quantity / Total produced quantity) * 100
  • Good unit quantity: conforming pieces moving to the next operation or stock.
  • Total produced quantity: sum of good and rejected units recorded at the workstation.
What does low quality mean? A low value indicates a high proportion of rejected units. Review these possible causes:
  • Defective raw materials or semi-finished inputs: pieces or materials arriving with faults from suppliers or previous operations.
  • Setup errors at lot start: incorrect calibrations generating rejects until the machine stabilizes.
  • Tool or machine wear: worn tooling causing deviations outside tolerance.
  • Handling errors: mistakes positioning, handling, or processing a piece.

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OEE (Overall Equipment Effectiveness)

This is the workstation’s overall productive efficiency indicator. How is it calculated? OEE (%) = (Availability / 100) * (Performance / 100) * (Quality / 100) * 100 What does low OEE mean? A low OEE indicates that the workstation operates below its theoretical potential. Depending on the calculation’s components, main causes commonly include:
  • Availability losses: frequent breakdowns, long setups, missing materials, or unplanned stops.
  • Performance losses: lower speed from wear, small stops, or unrealistic theoretical times.
  • Quality losses: waste, setup deviations at lot start, or raw material problems.
Low OEE does not always indicate the same problem. First review which component falls, then open operational details.