18. Testers vs. Developers Get up-to-speed quickly Domain knowledge Ignorance is important Understand user behaviour Focus on what can go wrong Focus on severity of problem Thorough understanding Knowledge of product internals Expertise is important Understand system design Focus on how it can work Focus on interest in problem GoodTesters Good Developers
19. Testers vs. Developers Empirical What’s observed Sceptics Tolerate tedium Comfortable with conflicts Report problems Theoretical How it’s designed Believers Automate tedium Avoid conflicts Understands problems Good Testers Good Developers