Hell of a Tester

Here's another chat I have had many times. It starts with the golden and notorious question of "how much should you test". And it then drifts a bit from there. ******** How much should you test? "Well, you know, I used to work once in this team doing a medical device where releasing frequently was not really possible due to the many constraints. And even doing a small release would cost a lot . And it being a class C (death or serious injury may occur) device all issues found on a released product would have been a pretty big deal. So this meant that we took unbugginess very seriously, and thus that I had a lot of time to spend testing the device. And boy did I. I spent sometimes almost like the entire week just in front of the machine testing, thinking of ways how it could fail, unrolling all the test techniques I got in me, learning the ins and outs of the product. And then one day when the new release was done.... several problems were found. So taken ...