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	Optimeringsassisterad processkapacitetsanalys	Six Sigma DMAIC
Ämnesområde	Försöksplanering	Kvalitetsledning
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1986–2000s	2014
Upphovsperson	V. E. Kane (capability indices, 1986); integrated with optimization frameworks by quality engineering researchers in the 1990s–2000s	Motorola; Pyzdek & Keller
Typ	Quantitative engineering method	Structured process improvement methodology
Ursprungskälla	Kane, V. E. (1986). Process capability indices. Journal of Quality Technology, 18(1), 41–52.	Pyzdek, T., & Keller, P. (2014). The Six Sigma Handbook (4th ed.). McGraw-Hill. ISBN: 978-0-07-184053-9
Alias	OA-PCA, optimization-integrated capability analysis, capability-constrained process optimization, process capability with optimization	DMAIC Framework, Six Sigma Process Improvement Cycle, Define-Measure-Analyze-Improve-Control, Altı Sigma DMAIC
Närliggande	5	3
Sammanfattning	Optimization-assisted process capability analysis combines classical capability indices (Cp, Cpk, Cpm) with mathematical optimization to identify process parameter settings that simultaneously satisfy engineering specifications and maximize process capability. Rather than simply measuring whether a process is capable, it prescribes the control factor levels — mean, variance, tolerances — that push capability above a target threshold. It is widely applied in manufacturing, chemical processing, and quality engineering contexts where multiple process variables must be tuned jointly.	Six Sigma DMAIC is a data-driven, five-phase process improvement methodology — Define, Measure, Analyze, Improve, and Control — used to reduce defects and process variation to fewer than 3.4 defects per million opportunities. Originating at Motorola in the 1980s and systematized by practitioners including Pyzdek and Keller, it is widely adopted in manufacturing, healthcare, finance, and service industries seeking sustained quality gains.