방법 비교

	파일럿 분할 요인 설계 실험	일부 요인 실험
분야	실험설계	실험설계
계열	Process / pipeline	Process / pipeline
기원 연도	1950s–1960s (fractional factorial foundation); pilot study integration formalized in 20th century DOE practice	1945 (Finney); broader development 1950s–1970s by Box, Hunter
창시자	Box, Hunter & Hunter (fractional factorial); pilot study concept developed broadly in industrial and clinical experimentation	D. J. Finney (formal development); foundations in Ronald Fisher's factorial design work
유형	Experimental screening design (pilot phase)	Quantitative experimental design
원전	Montgomery, D. C. (2017). Design and Analysis of Experiments (9th ed.). Wiley. ISBN: 978-1119492443	Box, G. E. P., Hunter, J. S., & Hunter, W. G. (2005). Statistics for Experimenters: Design, Innovation, and Discovery (2nd ed.). Wiley-Interscience. ISBN: 978-0471718130
별칭	pilot FFE, screening pilot design, pilot fractional factorial, pilot FF screening study	fractional factorial design, FFD, 2^(k-p) design, fractional replication
관련	5	4
요약	A pilot fractional factorial experiment is a small-scale preliminary study that uses a fractional factorial design — testing only a subset of all possible factor combinations — to screen multiple factors simultaneously before committing to a full-scale investigation. It provides early estimates of effect sizes, variance, and feasibility at substantially reduced cost and participant burden compared to a full factorial pilot or a full-scale trial.	A fractional factorial experiment is a resource-efficient experimental design that tests only a carefully chosen fraction of all possible factor-level combinations. By exploiting the principle that high-order interactions are usually negligible, it identifies the main effects and low-order interactions of k factors using far fewer runs than a full factorial design — making it the workhorse of industrial and engineering screening experiments.