Show whether order lead time is stable, which causes drive late orders, and whether the piloted change is better than comparable work before it becomes the standard.
Stability & causes
On-time delivery: 86.4% (promised date met)
Median lead time: 4.9 d (order → dispatch)
Late orders (30 d): 212 (of 1,561 orders)
Process sigma (approx.): 2.6σ (late = defect)
Open actions: 5 (control plan)
Visuals: Lead time control chart (I-chart); Pareto of late-order causes; Late rate by order type × weekday; Hypotheses tested
Pilot & control
Pilot late rate: 7.9% (standard + custom)
Pilot median lead: 3.9 d (same mix)
Orders compared: 642 (pilot 318 · control 324)
Signals since change: 0 (run rules)
Visuals: Lead time with pilot phase; Like-for-like comparison; Control plan; Decision