FTA employs deductive, top-down logic to model how component failures combine to cause hazardous events. Uses Boolean gates (AND, OR) and probabilistic calculations to quantify failure probability, supporting PMHF calculations and cut-set analysis. Covers tree construction, common-cause failure identification, minimal cut-set derivation, and quantitative reliability predictions. Complements FMEA by revealing architectural vulnerabilities and validating safety mechanism coverage requirements.
FTA (Fault Tree Analysis)
Top-down probabilistic reasoning to quantify hazardous events. Covers gate modeling, common pitfalls, and how to use FTA to complement FMEA and drive mechanism coverage.