How-To Guides - Nextedy Documentation

Functional Hazard Analysis

Identify failure conditions, classify severity, assign DALs, and link safety requirements.

Conduct system and design-level failure mode and effects analysis with RPN scoring.

Create fault trees, common cause analyses, PSSA, and SSA documents.

Conduct DO-326A threat assessments and security requirement traceability.

Initialize system elements, create risk documents, and configure PowerSheet views.

Review certification readiness, FMEA summaries, and compliance matrices.

Review, approve, and rework risk documents through the document lifecycle.

The following diagram shows how the major analysis types flow together in a typical aerospace safety program:

Analysis	Purpose	When to Use	Start Here
FHA	Identify system-level failure conditions and classify severity	At system design phase	FHA Workflows
SFMEA	Analyze subsystem failure modes and evaluate risk priorities	After FHA is baselined	SFMEA Workflows
DFMEA	Analyze component-level failure modes and design traceability	In detailed design phase	DFMEA Workflows
FTA	Develop fault trees for complex failure scenarios	As needed for high-criticality items	FTA Guide
CCA	Analyze common cause failure events	For redundant / diverse architectures	CCA Guide
PSSA/SSA	Conduct preliminary and system safety assessments	At design review and integration gates	PSSA/SSA Guide
Security	DO-326A threat assessment and cybersecurity requirements	Throughout development lifecycle	Security Guide

New to the solution? Start here:

Create System Elements — Define your system hierarchy
Create Your First Functional Hazard Assessment — Walk through a complete FHA example

Running a complete safety analysis? Follow this sequence:

Performing detailed design analysis?

Generating compliance artifacts?