手法を比較

	ハイブリッド Six Sigma DMAIC	統計的プロセス管理
分野	実験計画法	実験計画法
系統	Process / pipeline	Process / pipeline
提唱年	1980s (Six Sigma); Hybrid/Lean integration widely adopted ~2000–2002	1924–1931
提唱者	Hybrid formalized through Lean Six Sigma integration; foundational DMAIC rooted in Motorola's Six Sigma program (Bill Smith, Mikel Harry)	Walter A. Shewhart
種類	Process improvement and quality management framework	Process monitoring and quality control method
原典	George, M. L. (2002). Lean Six Sigma: Combining Six Sigma Quality with Lean Speed. McGraw-Hill. ISBN: 978-0071385213	Shewhart, W. A. (1931). Economic Control of Quality of Manufactured Product. Van Nostrand. ISBN: 978-0873890762
別名	Lean Six Sigma DMAIC, Hybrid DMAIC, Integrated Six Sigma DMAIC, DMAIC Hybrid Framework	SPC, statistical quality control, process control charting, Shewhart control
関連	2	6
概要	Hybrid Six Sigma DMAIC combines the rigorous five-phase DMAIC cycle (Define, Measure, Analyze, Improve, Control) with complementary methodologies — most commonly Lean principles, Agile practices, or Design Thinking — to address quality defects and process inefficiencies simultaneously. By integrating speed-focused tools from Lean with the statistical discipline of Six Sigma, hybrid approaches close the gap that pure Six Sigma frameworks sometimes leave when waste elimination and cycle-time reduction are equally critical goals.	Statistical Process Control (SPC) is a data-driven quality method that uses statistical techniques — primarily control charts — to monitor a manufacturing or service process over time. By distinguishing natural process variation (common cause) from unusual, actionable variation (special cause), SPC enables practitioners to maintain processes in a stable, predictable state and to detect problems early, before defective output reaches customers.