A
Sub : Occurence rating
Should occurrence rating be based on the no. of times a failure occurs or no. of non-conforming parts i.e if a particular undersize problem had occurred twice when running a batch of 10,000 components and if on segregation we found 2000 components non-conforming then should we take the failure rate as 2/10,000 thereby assigning occurrence rating of 5 or should we take the failure rate as 2000/10000 ,thereby getting an occurrence rating of 10.Likewise an undersize problem could have occurred 10 times when running 10000 nos. but on segregation found only 100 pieces.In this case should the failure rate be taken as 10 / 10000 i.e occurrence rating of 7 or take failure rate as 100/10000 nos. i.e occurrence rating of 10.
Should occurrence rating be based on the no. of times a failure occurs or no. of non-conforming parts i.e if a particular undersize problem had occurred twice when running a batch of 10,000 components and if on segregation we found 2000 components non-conforming then should we take the failure rate as 2/10,000 thereby assigning occurrence rating of 5 or should we take the failure rate as 2000/10000 ,thereby getting an occurrence rating of 10.Likewise an undersize problem could have occurred 10 times when running 10000 nos. but on segregation found only 100 pieces.In this case should the failure rate be taken as 10 / 10000 i.e occurrence rating of 7 or take failure rate as 100/10000 nos. i.e occurrence rating of 10.