It often becomes very useful, especially at the very highest systems levels, to connect standardized functions to the elements of these systems and create such standardizations for a product or process group, for a specific location or for an enterprise.
A simple Rule:
If one creates a failure function by negation of the target function, one can be certain that no failure causes are anticipated.
The FMEA rules state that within the framework of a systems analysis a link must be created which connects a specific failure with its causes and its effects.
FMEA avoids risks upfront and not backwards analytical.