4 articles
KPIs that boil down to “just do it faster” create rework, hidden factories, and fake wins on dashboards. But there is a better way that can help align everyone from operator to supervisor with what the factory actually needs.
Same data, opposite conclusions. The roll-up blames Night; the segments show Night ahead. How Simpson's Paradox leads industrial engineers to make wrong conclusions.
When measurement is expensive, planning becomes unreliable; automating time‑study annotation lowers the cost of fresh data so that every decision can be grounded in facts.
Industrial engineers spend 4-14 hours weekly recording GoPro videos, writing MODAPTS codes, and hunting for missing minutes in their routings. Here is what we learned from IEs at Tesla, GM, and dozens of other manufacturers about how time studies actually get done.