sorry Bill, they're really quite helpful in the right circumstance I don't think I've ever claimed they're never useful ;) But I do still believe that, out of

sorry Bill, they're really quite helpful in the right circumstance I don't think I've ever claimed they're never useful ;) But I do still believe that, out of the things you listed, they have the lowest utility for the amount of effort involved. Personally, I would do fully-automated deploy and rollback first, closely followed by monitoring, then code reviews, and then if problems were still slipping through the net I'd tell people to start writing unit tests.