event-tree-analysis - ARP4761A Forward Event-Tree Analysis
Enumerates binary event-tree paths, calculates end-state frequencies, ranks outcomes, sums failure frequency, and flags dominant sequences against severity targets.
Tags
Updated: 2026-09-29Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Enumerate binary branch paths
- Calculate path probabilities
- Roll up outcome frequencies
- Rank end-state frequencies
- Sum failure-end-state frequency
- Screen dominant sequences
Inputs
- Initiating event frequency
- Ordered mitigating functions
- Function success probabilities
- FHA end-state severity classes
- Per-flight-hour severity targets
Outputs
- Enumerated branch paths
- Path probabilities
- Frequency-ranked end-state list
- Failure-end-state frequency sum
- Dominant-sequence flags
- Dominance ratios
Requirements
- Python 3 runtime