Differences between FMEA & RCA

Sr. No.

FMEA (Failure Mode and Effect Analysis)

RCA (Root Cause Analysis)

1 Prospective, Proactive

Focus : Failure prevention


Focus : Failure detection

2 Used for changes or modification in equipment, process Used for product complaints, OOS, unplanned deviation, recalls.
3 Choose topic for evaluation of failure modes prior to its implementation Analyse underlying cause on occurrence of a failure through a series of  ‘WHY’  questions
4 ‘Contributory factors’ for potential failure modes are its implementation. Causes of problems are investigated what went wrong?
5 Goal: Evaluate impact of changes and decrease the ‘RPN’ Goal: Preventing recurrence of problem
6 Includes detestability in evaluation Develop ways to defect and fix a problem.