Walter Shewhart
Contributions in the toolbox
- 1924
Invents the control chart, defining process spread as ±3σ.
→ Cp / Cpk Process Capability - 1931
Establishes statistical control theory underpinning measurement variation analysis.
→ Gage R&R (%P/T)
Invents the control chart, defining process spread as ±3σ.
→ Cp / Cpk Process CapabilityEstablishes statistical control theory underpinning measurement variation analysis.
→ Gage R&R (%P/T)