We add test phases to find bugs and improve quality. But what if adding more phases made no difference? In the Peltzman Effect, humans adjust their behaviour in response to perceived risk, taking additional risks when they feel safer. This means that, under certain conditions, the quality benefits from adding test phases are cancelled out by additional risk-taking elsewhere in the software development cycle, leading to no improvement in quality. In this new eBook from Andrew Brown, the author explores how the Peltzman Effect exists in the software development life cycle. He investigates and shares the history of the Effect,…....