Hi Sree ram,
find below the ratings as per Industry Standards.hope this helps.
RATING
DEGREE OF SEVERITY
LIKELIHOOD OF OCCURRENCE
ABILITY TO DETECT
1
Customer will not notice the adverse effect or it is insignificant
Likelihood of occurrence is remote
Sure that the potential failure will be found or prevented before reaching the next customer
2
Customer will probably experience slight annoyance
Low failure rate with supporting documentation
Almost certain that the potential failure will be found or prevented before reaching the next customer
3
Customer will experience annoyance due to the slight degradation of performance
Low failure rate without supporting documentation
Low likelihood that the potential failure will reach the next customer undetected
4
Customer dissatisfaction due to reduced performance
Occasional failures
Controls may detect or prevent the potential failure from reaching the next customer
5
Customer is made uncomfortable or their productivity is reduced by the continued degradation of the effect
Relatively moderate failure rate with supporting documentation
Moderate likelihood that the potential failure will reach the next customer
6
Warranty repair or significant manufacturing or assembly complaint
Moderate failure rate without supporting documentation
Controls are unlikely to detect or prevent the potential failure from reaching the next customer
7
High degree of customer dissatisfaction due to component failure without complete loss of function. Productivity impacted by high scrap or rework levels.
Relatively high failure rate with supporting documentation
Poor likelihood that the potential failure will be detected or prevented before reaching the next customer
8
Very high degree of dissatisfaction due to the loss of function without a negative impact on safety or governmental regulations
High failure rate without supporting documentation
Very poor likelihood that the potential failure will be detected or prevented before reaching the next customer
9
Customer endangered due to the adverse effect on safe system performance with warning before failure or violation of governmental regulations
Failure is almost certain based on warranty data or significant DV testing
Current controls probably will not even detect the potential failure
10
Customer endangered due to the adverse effect on safe system performance without warning before failure or violation of governmental regulations
Assured of failure based on warranty data or significant DV testing
Absolute certainty that the current controls will not detect the potential failure
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