Research Article
A Comprehensive Method of Apportioning Reliability Goals for New Product of Hydraulic Excavator
Table 3
Suggested ranking system for the occurrence of failure modes.
| Rank () | Comment | Failure frequency |
| 10 | Extremely high | ≥0.2 | 9 | Very high | ≥0.1 | 8 | Repeated failures | ≥0.05 | 7 | High | ≥0.03 | 6 | Moderately high | ≥0.02 | 5 | moderate | ≥0.01 | 4 | Relatively low | ≥0.005 | 3 | Low | ≥0.001 | 2 | Remote | ≥0.0005 | 1 | Nearly impossible | ≥0.0001 |
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