The Fault Hazard Analysis is a deductive method of analysis that can be used exclusively as a qualitative analysis. The fault hazard analysis requires a detailed investigation of the subsystems to determine component hazard modes, causes of these hazards, and resultant effects to the subsystem and its operation. This type of analysis is a form of a family of reliability analyses called failure mode and effects analysis (FMEA) and FMECA. The chief difference between the FMEA/FMECA and the fault hazard analysis is a matter of depth.
Purpose of FHA
Aid in system design concept selection.
Support "functional mechanizing" of hardware.
"Design out" critical safety failure modes.
Assist in operational planning.
Provide inputs to management risk control efforts.
