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	Flerrespons felmoderns och effekternas analys (MR-FMEA)	Feltträdanalys (FTA)
Ämnesområde	Försöksplanering	Tillförlitlighet
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1990s–2000s	1981
Upphovsperson	Extended from classical FMEA (MIL-P-1629, 1949; Ford Motor Company, 1970s); multi-response integration developed in quality engineering literature from the 1990s onward	Vesely et al. (US NRC Fault Tree Handbook)
Typ	Risk analysis and quality engineering method	Deductive top-down failure analysis
Ursprungskälla	Stamatis, D. H. (2003). Failure Mode and Effect Analysis: FMEA from Theory to Execution (2nd ed.). ASQ Quality Press. ISBN: 978-0873895989	Vesely, W. E., Goldberg, F. F., Roberts, N. H., & Haasl, D. F. (1981). Fault Tree Handbook (NUREG-0492). U.S. Nuclear Regulatory Commission.
Alias	MR-FMEA, multi-response FMEA, multi-criteria FMEA, multi-objective FMEA	FTA, Fault Tree Method, Top-Down Reliability Analysis, Hata Ağacı Analizi
Närliggande	6	3
Sammanfattning	Multi-response FMEA extends classical Failure Mode and Effects Analysis to systems or processes where each failure mode produces effects across multiple quality characteristics or response variables simultaneously. Rather than assigning a single Risk Priority Number (RPN), it evaluates severity, occurrence, and detectability for each response dimension, then integrates these ratings — often via multi-criteria scoring or weighted aggregation — to obtain a holistic risk ranking that captures the full consequence profile of each failure mode.	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.