root cause analysis
根本原因分析
Five whys
-- Iterative interrogative technique
A3 problem solving
barrier analysis
eight disciplines problem solving
factor analysis
failure mode and effects analysis
-- Systematic technique for identification of potential failure modes in a system and their causes and effects
fault tree analysis
-- Failure analysis system used in safety engineering and reliability engineering
forensic engineering
-- Investigation of failures associated with legal intervention
Issue-based information system
Issue tree
Multiple regression
Multivariate linear regression
Orthogonal Defect Classification
RCASE
structural fix
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Root Cause Analysis
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Root Cause Analysis