Σύγκριση μεθόδων

	Μπεϋζιανή Ανάλυση Βασικής Αιτίας	Ανάλυση Δέντρου Σφαλμάτων (FTA)
Πεδίο	Πειραματικός Σχεδιασμός	Αξιοπιστία
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	1990s–2000s	1981
Δημιουργός	Rooted in Pearl's Bayesian network theory (Judea Pearl, 1988); applied to RCA in process/reliability engineering from the 1990s onward	Vesely et al. (US NRC Fault Tree Handbook)
Τύπος	Probabilistic causal inference method	Deductive top-down failure analysis
Θεμελιώδης πηγή	Pourret, O., Naim, P., & Marcot, B. (Eds.). (2008). Bayesian Networks: A Practical Guide to Applications. Wiley. ISBN: 978-0470060308	Vesely, W. E., Goldberg, F. F., Roberts, N. H., & Haasl, D. F. (1981). Fault Tree Handbook (NUREG-0492). U.S. Nuclear Regulatory Commission.
Εναλλακτικές ονομασίες	Bayesian RCA, Bayesian causal analysis, probabilistic root cause analysis, BN-RCA	FTA, Fault Tree Method, Top-Down Reliability Analysis, Hata Ağacı Analizi
Συναφείς	6	3
Σύνοψη	Bayesian Root Cause Analysis (Bayesian RCA) integrates Bayesian network theory with structured root cause investigation to quantify the probability that each candidate cause is responsible for an observed failure or undesired event. Unlike deterministic RCA methods, it propagates uncertainty through the causal graph, updates beliefs as evidence accumulates, and ranks competing hypotheses by posterior probability — providing a principled, auditable basis for corrective action.	Fault Tree Analysis (FTA) is a top-down, deductive reliability method that begins with an undesired top-level failure event and systematically traces backward through chains of contributing causes using Boolean logic gates (AND, OR). First formalized by Watson at Bell Telephone Laboratories in 1961 and later standardized by Vesely, Goldberg, Roberts, and Haasl in the landmark 1981 NRC Fault Tree Handbook, FTA has become a cornerstone of quantitative risk assessment in nuclear, aerospace, and industrial safety engineering.