My Reading on ASQ CQA HB Part V Part 2

Part VH
Types
• Functional: before design solutions are provided (or only on high level) functions can be evaluated on
potential functional failure effects. General Mitigations ("design to" requirements) can be proposed to limit
consequence of functional failures or limit the probability of occurrence in this early development. It is based
on a functional breakdown of a system. This type may also be used for Software evaluation.
• Concept Design / Hardware: analysis of systems or subsystems in the early design concept stages to
analyse the failure mechanisms and lower level functional failures, specially to different concept solutions in
more detail. It may be used in trade-off studies.
• Detailed Design / Hardware: analysis of products prior to production. These are the most detailed (in mil
1629 called Piece-Part or Hardware FMEA) FMEAs and used to identify any possible hardware (or other)
failure mode up to the lowest part level. It should be based on hardware breakdown (e.g. the BoM = Bill of
Material). Any Failure effect Severity, failure Prevention (Mitigation), Failure Detection and Diagnostics may
be fully analyzed in this FMEA.
• Process: analysis of manufacturing and assembly processes. Both quality and reliability may be affected
from process faults. The input for this FMEA is amongst others a work process / task Breakdown.
https://en.wikipedia.org/wiki/Failure_mode_and_effects_analysis
Charlie Chong/ Fion Zhang