So sánh phương pháp

	Phân tích Nguyên nhân Gốc rễ Đa Đáp ứng	Thiết kế thí nghiệm đa đáp ứng
Lĩnh vực	Thiết kế thí nghiệm	Thiết kế thí nghiệm
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1990s–2000s (multi-response extension of classical RCA)	1980 (desirability function formalization); DoE roots from Fisher, 1920s–1930s
Người khởi xướng	Root Cause Analysis tradition (Kepner-Tregoe, Ishikawa, Deming); multi-response extension in Six Sigma and quality engineering practice	Derringer & Suich (desirability function); Montgomery (systematic DoE integration)
Loại	Systematic problem-solving method	Experimental optimization methodology
Công trình gốc	Andersen, B., & Fagerhaug, T. (2006). Root Cause Analysis: Simplified Tools and Techniques (2nd ed.). ASQ Quality Press. ISBN: 978-0873896924	Derringer, G., & Suich, R. (1980). Simultaneous optimization of several response variables. Journal of Quality Technology, 12(4), 214–219.
Tên gọi khác	Multi-KPI RCA, Multi-output RCA, Multi-response RCA, MRCA	Multi-response DoE, Multiple-response optimization, Multi-objective DoE, MRDoE
Liên quan	6	4
Tóm tắt	Multi-response Root Cause Analysis (MRCA) is a structured problem-solving method that identifies the underlying causes of failures or deviations across multiple simultaneous response variables (KPIs, quality characteristics, or process outputs). It extends classical RCA to settings where a single root cause can propagate into several observed defects or performance degradations at once, which is common in manufacturing, engineering, and service-quality contexts.	Multi-response Design of Experiments (MRDoE) extends classical DoE to situations where several response variables must be optimized simultaneously. Rather than tuning factors for a single output, the experimenter fits separate regression or response-surface models for each response, then combines them — most often via Derringer and Suich's desirability function — into a single composite score that guides the search for factor settings satisfying all response targets at once.