방법 비교

	베이즈 공정능력 분석	Control Chart
분야	실험설계	실험설계
계열	Process / pipeline	Process / pipeline
기원 연도	Classical PCA: 1986; Bayesian extensions: 1990s–2000s	1924 (first use); 1931 (seminal book)
창시자	Bayesian extensions developed by multiple authors including Bernardo, Smith, and Vannman; classical PCA by Juran and Kane (1986)	Walter A. Shewhart (Bell Labs)
유형	Bayesian statistical quality method	Statistical monitoring and control technique
원전	Kotz, S., & Johnson, N. L. (2002). Process Capability Indices — A Review, 1992–2000. Journal of Quality Technology, 34(1), 2–19.	Shewhart, W. A. (1931). Economic Control of Quality of Manufactured Product. Van Nostrand.
별칭	Bayesian PCA, Bayesian capability indices, Bayesian Cp/Cpk estimation, Bayesian process performance analysis	Shewhart chart, process-behavior chart, SPC chart, quality control chart
관련	5	6
요약	Bayesian Process Capability Analysis integrates Bayesian inference with classical capability indices (Cp, Cpk, Cpm) to estimate how well a production process meets specification limits. Rather than relying solely on observed sample data, it incorporates prior knowledge about process parameters — yielding more stable and credible estimates of process capability, especially under small sample sizes common in manufacturing and quality engineering.	A control chart is a time-series graph with statistically derived upper and lower control limits that separates the natural, random variation of a process (common cause) from unusual, assignable variation (special cause). Invented by Walter Shewhart at Bell Labs in 1924, control charts remain the foundational tool of Statistical Process Control and are used across manufacturing, healthcare, software, and service industries to monitor whether a process remains stable and predictable over time.