Failure Modes and Effects Analysis (FMEA) Scoring System

Missouri Baptist Medical Center
St. Louis, Missouri, USA

When using Failure Modes and Effects Analysis (FMEA) to evaluate a process, team members must assign a numeric value to each failure mode rating the likelihood of occurrence, severity, and detection of failure. These numeric values are needed to calculate the Risk Priority Number (RPN) for each failure mode. Team members who are new to FMEA may find these descriptions of what the numeric values mean helpful. The descriptions also help to ensure that all team members are using the same definition for each number.



Consider using this scoring guideline when assigning numeric values to the failure modes in your FMEA, as it may be helpful for ensuring standard definitions across your team. Or, use it as a reference to develop your own scoring guideline.


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