Validation of manual operations (inspection of containers)

our QA departament asked me to validate manual inspection of containers.
During inspection employees press manually containers and are looking for any leakage, so any leaky should be sorted out.

Is it possiblle to validate this method as it is strongly operator dependend (different gangs/shifts/experience of employees and so on) ?

How would you approach this ?


hope u can qualify operators for inspetion job by comparing the inspected containers. this can be approached by Knapp test for opearot variance i hope. chekc this article it can be used for comparison of machine with human and between human also.


From my understanding validation of a manual inspection is not feasible due to the lack of reproducibility. The Knapp Test or Knapp Kushner test is a test that involves Human vs an Automated process to establish the difference in efficiency.