OEE¶
OEE (Overall Equipment Effectiveness) tells you how much useful output a machine actually produced during a shift, compared with what it could have produced had it run the whole shift, at full speed, with nothing rejected.
The one rule worth knowing first¶
OEE is never typed in. It is always worked out from what was logged: stoppages on the Downtime Log, counts on Production Entry, and the cycle times set up under Cycle Time Standards. There is no field anywhere to enter an OEE figure by hand, and no way to adjust one after the fact — you change the figures by correcting the underlying log entries.
This is deliberate: an OEE number that can be edited is a number nobody can trust.
How the three parts fit together¶
| Part | Question it answers | How it's worked out |
|---|---|---|
| Availability | Was the machine running when it was supposed to be? | Running time ÷ planned shift time. Running time is the shift, less everything logged as downtime |
| Performance | When it was running, did it run at full speed? | What the logged output should have taken at the standard cycle time, ÷ the time it actually ran |
| Quality | How much of the output was right first time? | Good pieces ÷ total pieces |
OEE = Availability × Performance × Quality. All three are percentages, so a shift that scores 90% on each has an OEE of about 73% — which is normal, and is the point of the measure.
Rework counts against Quality, not Performance
A piece that has to be reworked is counted in the total but not as good, so it pulls Quality down. The machine still gets credit for having produced it, so Performance is unaffected. This is the standard treatment and matches how the rest of the industry reports it.
When a figure is blank¶
A blank is not a zero. If something needed to work a figure out is missing, Enture leaves it blank and tells you what's missing, rather than showing 0% and letting you draw the wrong conclusion:
| What you see | What it means |
|---|---|
| No production count logged | Nothing was logged for that machine, shift and date, so Performance and Quality can't be worked out. Availability still can |
| No cycle time standard configured | The machine and product pair has no standard time set up, so Performance can't be worked out. See Cycle Time Standards |
| No cycle time standard for the line | The same thing on Line OEE: a line's Performance needs a standard set for that line and product. A machine's standard is deliberately not used in its place, because it describes something different |
| No runs recorded | On Line OEE, the line recorded no runs for that shift and date, so Performance and Quality can't be worked out |
| A shift with unreadable start or end times | The shift's start or end time can't be interpreted, so Enture can't tell how long it was meant to run. Correct it in Shift settings and reload. This is reported plainly rather than shown as 0% — a zero would read as "nothing ran", when the truth is that the planned time is unknown |
| Not measured for OEE | The step is desk work — design, drawing, GTP preparation — so it has no OEE at all. It is also left out of its Work Order's figure, because planned hours with no machine behind them would read as perfect uptime. See Job Cards |
| Some cards left out of a Work Order's figure | The order's OEE covers only the steps actually done on the shopfloor. Enture shows how many cards were measured alongside the total, so the two can be told apart |
| A step with no planned time | The shifts worked on that card have no start and end times set up, so there is nothing to measure the runtime against. Correct it in Shift settings |
| Performance shown as 0% | This is a real zero — it means the machine was logged as stopped for the entire shift |
In this section¶
- Dashboard — OEE for a machine, shift and date, the downtime breakdown, and closing a shift off
- Line OEE — The same score for a whole production line, built from the runs the line itself recorded
- Downtime Log — Start and stop stoppages, and give each one a reason
- Production Entry — Log good, scrap and rework counts from the shop floor
- Reason Codes — The list of downtime reasons operators pick from
- Cycle Time Standards — The standard time per piece for each machine and product
OEE elsewhere in Enture¶
The same figures appear where the work is, not only on the OEE dashboard:
- A Work Order shows its own OEE, covering just that order, on its detail page.
- A Job Card shows OEE for that one routing step, on its own machine and shifts — see Job Cards. Steps that run for days on engineered, one-off work are measured against their schedule instead, since a pieces-per-minute figure means nothing for them.
These can legitimately differ from the shift figure for the same machine and day: a shift can carry work from more than one order, while a work order's figure counts only its own.