Truths and realities The earlier a bug is fixed the less costly it is Before code review by code review by testing By beta testers After product is released Prevention vs. detection The mere act of designing a test is a powerful bug preventer8 Truths and Realities • The earlier a bug is fixed, the less costly it is. – Before code review – By code review – By testing – By Beta testers – After product is released • Prevention vs. Detection – “The mere act of designing a test is a powerful bug preventer