The questions from the title might seem familiar to most of you and some of youmight even have strong opinions about what the answers to those questions are.There have been numerous occasions in recent years when there have beendiscussions about whose responsibility is to test and whose is to code and whata developer has to do and what a tester has to do. While doing research for thisarticle I've seen every opinion out there, and, while I agree with some, thisarticle represents my view on this very complex developer-tester relationship,from the perspective of having filled both shoes.