Setup Time Opacity
Facility knew changeovers took 'about 2-3 hours' but didn't track variance. Some shifts accomplished changeovers in 1.2 hours; others took 4.8 hours on identical products. This 4x variance suggested changeover duration was highly controllable.
What Became Visible
Detailed changeover tracking showed fastest shift (experienced team) used: parallel material staging, simplified verification, pre-positioned tools. Slowest shift used: sequential steps, lengthy quality checks, centralized tool retrieval. Same process, dramatically different execution.
Changeover Methodology Standardization
Best-shift changeover procedures documented and trained to all teams. Pre-changeover material staging, tool positioning, and verification checklists standardized.
How it worked: Real-time changeover analytics identified fastest teams' approaches. These became the standard. Training focused on procedure adoption, not individual skill replacement.
Results
vs 1.2-4.8 hours previous
weekly improvement
from changeover optimization
Setup duration variance indicates procedure variance, not product complexity. When fastest methodology is visible, it becomes the template for all teams.
Operational Reality
This improvement required no new equipment—just visibility into best practices combined with systematic standardization.