OEE+ and the Owner column
OEE+ is Augos's extension of standard OEE. It keeps the standard loss breakdown, OEE factor, loss category and cause, exactly as the standard defines it, and adds one column standard OEE never had: the owner, one of six functions that can recover each lost minute. Standard OEE shows the loss. OEE+ shows who owns it.
What OEE+ is
Standard OEE multiplies Availability, Performance and Quality into one score, then sorts the lost time into loss categories and reason codes. That tells a plant how much time it lost and roughly to what. It does not say whose problem the loss is, or how much of it could be won back. OEE+ answers both. The arithmetic is unchanged, so an OEE+ score of 65% means exactly what a standard OEE of 65% means. The addition is a fourth column in the loss breakdown: for every cause, the person or function who can act on it. How to calculate OEE sets out the standard arithmetic; this page is about the column.
Source: Augos Factory method, Glossary: OEE+
What the split adds
OEE+ splits a loss in three ways without changing the score: across, by factor, category and cause; by owner, the function that can recover it; and inside, where one stop is separated into parts that different people control. Standard OEE shows the total. OEE+ shows its parts.
Across, the standard loss breakdown is kept exactly as the standard defines it, and the owner is the added column. Inside a planned stop, the standard time is owned by Planning and the overrun by the Operator (Planning Efficiency Loss and Operator Discipline). Inside a stop, Augos Assist, an optional extra, times the response in stages (Stoppage Response Stages). Attributing losses to people is one result of this split. The other is a more granular reading of the same data.
Source: Augos Factory method, this page and the two linked pages
The six big losses
The six big losses are the classic map of where OEE goes. Two sit under each factor.
| Factor | Loss | What it looks like on the floor |
|---|---|---|
| Availability | Breakdowns | The line is down and nobody planned it. |
| Availability | Setup and adjustment | Changeovers, cleaning and planned maintenance, and the time they overrun. |
| Performance | Small stops and idling | The line halts for seconds, restarts, halts again. Too short to log by hand. Augos counts these as interruptions (what standard OEE calls minor stops or micro-stops). |
| Performance | Reduced speed | The line runs, but below its ideal rate. |
| Quality | Process defects | Scrap and rework during steady running. |
| Quality | Reduced yield | Start-up rejects while the process settles after a stop. |
Standard OEE stops here. Each loss has a category and, with a good reason-code dictionary, a cause. The next step, the one that turns a report into a task list, is to ask who can recover the time.
The Owner column
OEE+ adds one column. The first three columns below are the standard breakdown every plant already knows; the fourth is the whole "+".
| OEE factor | Loss category | Cause | Owner |
|---|---|---|---|
| Availability | Planned downtime | Changeover | Planning |
| Availability | Planned downtime | Scheduled maintenance window | Technician |
| Availability | Unplanned downtime | Breakdown | Technician |
| Availability | Unplanned downtime | Material starve | Planning · External |
| Availability | Unplanned downtime | Wait for technician | Shared (Operator + Technician) |
| Availability | Unplanned downtime | Operator absence | Operator · Planning |
| Performance | Reduced speed | Operator pace | Operator |
| Performance | Reduced speed | Speed loss (mechanical) | Technician |
| Performance | Small stops and idling | Interruption | Operator |
| Quality | Reject | Defect (process) | Quality |
| Quality | Reject | Defect (material) | External · Quality |
| Quality | Rework | Rework | Quality · Operator |
| Any | Unattributed | Pending classification | Operator (escalates) |
Two rows deserve a note. A changeover's scheduled time is owned by Planning, because management chose to schedule it; the minutes a changeover runs over its standard are owned by the Operator. Planning Efficiency Loss and Operator Discipline explains the split. And "wait for technician" is shared, because the operator decides when to call and the technician decides how fast to arrive; neither can shorten it alone, which is why it is timed as its own stage in the Stoppage Response Stages.
Source: Augos Factory method, owner table; terms as defined in the Glossary
The six owners
Every lost minute lands with one of six functions, or is shared between two of them.
| Owner | Recovers the time by |
|---|---|
| Operator | Noticing faster, clearing more stops alone, keeping to the changeover standard, running at pace. |
| Technician | Arriving faster, repairing faster, fixing recurring faults for good. |
| Planning | Scheduling fewer or shorter planned stops, sequencing products, keeping material flowing. |
| Quality | Fewer rejects and less rework; a cleaner start-up after a stop. |
| External | Suppliers, utilities and contractors; the plant manages the relationship rather than the minute. |
| Shared | Two functions whose handover is the loss, so the handover is what gets measured. |
Nothing is left as bare "downtime". A loss that nobody has classified yet is owned by the Operator and escalates, so the pressure to classify sits where the knowledge is.
A real month, by owner
The table below is one anonymised beverage packaging line over one month in 2026, 720 paid hours, as the Augos platform recorded it. Site, line, products and people are removed; the hours are as measured.
| Loss | Hours | Share of paid time | Owner |
|---|---|---|---|
| Waiting for raw material (5 stops) | 97.8 | 13.6% | Planning · External |
| Other waits: water, quality, blending, procurement (13 stops) | 4.1 | 0.6% | Planning · Quality · External |
| Breakdowns (417 stops) | 99.2 | 13.8% | Technician |
| Planned maintenance logged as unplanned (4 stops) | 4.2 | 0.6% | Technician |
| Cleaning (36 planned stops) | 78.8 | 10.9% | Planning (standard) · Operator (overrun) |
| Interruptions (13,260) | 54.6 | 7.6% | Operator |
| Speed loss (net of 0.4 h gain) | 23.2 | 3.2% | Operator · Technician |
| Quality stops and checks | 22.9 | 3.2% | Quality |
| Changeovers (26) | 14.0 | 1.9% | Planning (standard) · Operator (overrun) |
| People (meetings, breaks over) | 9.3 | 1.3% | Operator · Planning |
| Pending classification (45) | 8.8 | 1.2% | Operator (escalates) |
| Quality loss (rejects, as time) | 4.2 | 0.6% | Quality |
| Net production time | 299.0 | 41.5% |
Read as standard OEE, this line lost 58.5% of its paid time and Availability was the problem. Read with the Owner column, two blocks of almost identical size appear with opposite fixes: 98 hours lost to five raw-material waits, which belongs to planning and the supplier and will not be solved on the floor; and 99 hours lost to 417 breakdowns averaging fourteen minutes, which belongs to the technicians and the operators who cleared most of them. The 55 hours of interruptions, one every minute and a half of running time, belong to the operators and were invisible before a sensor counted them. Those are three different conversations, and the Owner column is what starts the right one.
Source: Augos platform, Performance Overview and Downtime Report, one anonymised beverage line, a 30-day month in 2026
What changes on Monday
A morning meeting run on standard OEE reports a percentage and a list of reasons, and the room argues about whose fault it was. A meeting run on OEE+ opens the loss breakdown by owner: the planner sees the hours scheduled and the hours waited for material, the maintenance lead sees the breakdown hours and the response time, the supervisor sees the overruns and the interruptions by operator. Each leaves with their own number and their own benchmark, the line's own best, so the question is no longer who to blame but how much of yesterday's loss each function can recover this week.
What Augos Assist adds
Standard OEE, the loss breakdown (factor, category, cause) and owner attribution are in the standard fee. Augos Assist, an optional extra, adds the Stoppage Response Stages behind the attribution: operator evaluation and resolution, technician response and wrench time. Without Assist, attribution has no technician owner and the full resolution of a stop sits with the operator.
Source: Augos Factory method, Glossary: tiers
Common questions
Is OEE+ a different formula from OEE?
No. Availability, Performance and Quality are calculated exactly as standard OEE defines them, so the score is comparable with any other plant's. OEE+ adds a column to the loss breakdown, the owner, and does not change the arithmetic.
What are the six big losses?
Breakdowns and setup/adjustment under Availability; small stops and reduced speed under Performance; process defects and reduced yield under Quality. They are the classic map of where OEE goes. OEE+ gives each one an owner.
Who are the six owners?
Operator, technician, planning, quality, external and shared. Every lost minute is assigned to the function that can recover it; a loss nobody has classified yet is owned by the operator and escalates.
Why is "wait for technician" shared?
Because the operator decides when to call and the technician decides how fast to arrive. Neither can shorten the wait alone, so it is timed as its own stage and owned by both.
Does owner attribution blame operators?
It measures what each function controls and benchmarks it against the line's own best, using medians so one bad shift does not define anyone. On the line above the operator-owned losses were roughly a quarter of the total; the rest sat with planning, suppliers and maintenance.