Alright, I was wondering how this is currently done in the industry. Usually, when we produce some hardware, we have a few testing options available (Automatic Optical Inspection, Flying Probe, In-Circuit-Testing, Function Testing, ...). Usually the customer will ask us what the advantage of one over the other is and we have a document explaining those which is fine. The next question usually is, if his board can be effectively tested using the one or the other method. What he usually would want to hear is: Using this test method we are able to find 75% of all errors, using the other one we can reach 90%. If you did this up front, we could reach 95%.
Now for the (engineering) question: How do you create such numbers? Have you done this in the past already? Do you require such numbers from your manufacturer. I know there is no universally available answer to this question but I would like to get some insight how this is handled in other companies. We simply want to provide a reliable and dependable source of information to our customers. Any insight is highly appreciated.