10. Our advice

10.1 Keep it simple

As FMECA is based on the study of cause-and-effect combinations, the number of cases to be evaluated quickly becomes high, and the work tedious.

• Limit the FMECA to well-defined products and functions, for well-defined life-cycle phases or applications.

• Don't hesitate to break down complex systems into simpler sub-assemblies, and carry out separate FMEAs for each.

• Pay particular attention to functional analysis, which greatly simplifies downstream analysis.