FMEA disruption severity degree ranking
| Degree | Description | Median rating |
|---|---|---|
| Very high | When a potential failure mode affects safe operation of the product and/or involves nonconformance with government regulations. May endanger people or product. Assign “9” if there will be a warning before disruption, assign “10” if there will not be a warning before disruption | 10–9 |
| High | When a high degree of customer dissatisfaction is caused by the disruption. Does not involve safety of people or product or compliance with government regulations. May cause disruption to subsequent processes/operations and/or require rework | 8–7 |
| Moderate | When a moderate degree of customer dissatisfaction is caused by the disruption. Customer is made uncomfortable or is annoyed by the disruption. May cause rework or result in damage to equipment | 6–5 |
| Minor | When a disruption is not likely to cause any real effect on subsequent processes/operations or require rework. Most customers are not likely to notice any disruption. Any rework that might be required is minor | 4–3 |
| Low | When a disruption will cause only slight annoyance to the customer | 2–1 |
| Degree | Description | Median rating |
|---|---|---|
| Very high | When a potential failure mode affects safe operation of the product and/or involves nonconformance with government regulations. May endanger people or product. Assign “9” if there will be a warning before disruption, assign “10” if there will not be a warning before disruption | 10–9 |
| High | When a high degree of customer dissatisfaction is caused by the disruption. Does not involve safety of people or product or compliance with government regulations. May cause disruption to subsequent processes/operations and/or require rework | 8–7 |
| Moderate | When a moderate degree of customer dissatisfaction is caused by the disruption. Customer is made uncomfortable or is annoyed by the disruption. May cause rework or result in damage to equipment | 6–5 |
| Minor | When a disruption is not likely to cause any real effect on subsequent processes/operations or require rework. Most customers are not likely to notice any disruption. Any rework that might be required is minor | 4–3 |
| Low | When a disruption will cause only slight annoyance to the customer | 2–1 |
Source(s): Adapted from Curkovic et al. (2015)
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