I am sure you are living in a perfect world or you are damn too inexperienced to talk about this. Oh....you could be a manager who does not know what he is talking about. Do not worry.... a lot of your colleagues do the same as well.

I have executed roles as developer, tester and support. I can tell you this: if you ever deliver a single delivery without a bug, then it often means (to the management) that the work was either too easy or you have got a lot of time to complete the jobs. The measure of efficiency and productivity is a damn joke in IT.