ANSWER
- Micro Stop percentages can differ because they are calculated using two different methods: time-based and event-based. Time-based shows how much production time was lost, while event-based shows how often Micro Stops occur, so the values are expected to be different.
ADDITIONAL DETAILS (if needed)
- Time-based percentages reflect the duration of Micro Stops relative to total manned time, while event-based percentages reflect the number of Micro Stop events compared to all stops. Because Micro Stops are typically frequent but short, event-based percentages are often higher.
LIMITATIONS (if applicable)
- Results depend on whether the report uses time-based or event-based calculation
- The two percentages are not directly comparable
- Does not indicate an issue with data accuracy
In some reports and visualizations, Micro Stop percentages may appear different even though they refer to the same production period. This is expected behavior and does not indicate a data issue.
The difference occurs because Micro Stops can be calculated from two different perspectives:
- Time‑based
- Event‑based
Both views are valid and serve different analytical purposes.
Time‑based Micro Stop percentage
Example: 4.1%
This value shows how much of the total manned time was spent in Micro Stops.
- Calculated from the duration of Micro Stops
- Answers the question:
“How much production time was lost due to Micro Stops?”
This percentage is typically shown in summaries such as OEE breakdowns or time distribution tables.
Event‑based Micro Stop percentage
Example: 6.5%
This value shows how many of the total stop events were classified as Micro Stops.
- Calculated from the number of stop occurrences
- Answers the question:
“How often do Micro Stops occur compared to other stop types?”
This percentage is often displayed in stop distribution charts or event‑based analyses.
Why are the values different?
Micro Stops usually occur:
- Very frequently
- With short durations
As a result:
- They make up a larger share of stop events
- But only a smaller share of total lost time
This is why the event‑based percentage is often higher than the time‑based percentage.