방법 비교

	강건 신뢰도 분석	강건 부분 요인 설계
분야	실험설계	실험설계
계열	Process / pipeline	Process / pipeline
기원 연도	1980s–1990s (integration formalized in engineering literature)	1980s (Taguchi's crossed-array approach); fractional factorial roots 1935–1945
창시자	Synthesized from Taguchi robust design and classical reliability theory (Kececioglu, Taguchi)	Genichi Taguchi (robust parameter design); fractional factorial foundations by Ronald Fisher and Frank Yates
유형	Quantitative reliability engineering method	Experimental design / robust parameter design
원전	Kececioglu, D. (1991). Reliability Engineering Handbook (Vol. 1). Prentice Hall. ISBN: 978-0137720774	Montgomery, D. C. (2017). Design and Analysis of Experiments (9th ed.). Wiley. ISBN: 978-1119492443
별칭	RRA, reliability robustness analysis, uncertainty-aware reliability analysis, robust probabilistic reliability	robust FFD, robust fractional factorial experiment, crossed-array fractional factorial, Taguchi-style fractional factorial
관련	4	2
요약	Robust reliability analysis is an engineering method that combines classical reliability estimation with robustness principles to quantify and improve system dependability in the presence of parameter uncertainty and variability. Rather than assuming fixed input values, it propagates distributions of noise factors through a reliability model to produce probability-of-failure estimates that remain valid across a range of operating conditions and manufacturing tolerances.	Robust fractional factorial design combines the run-count efficiency of fractional factorial arrays with Taguchi's robust parameter design philosophy. By simultaneously manipulating control factors (inner array) and noise factors (outer array) — each structured as a fractional factorial — the method identifies factor settings that minimize product or process variation due to uncontrollable conditions, without requiring a full factorial experiment.