The Principles of Product Development Flow: Second Generation Lean Product Development
A comprehensive book by Donald G. Reinertsen (2009) that challenges conventional product development management by identifying invisible, unmanaged queues as the root cause of poor development performance. The book presents 175 principles across eight major areas including economic decision-making, queue management, batch size reduction, WIP constraints, accelerated feedback, flow management amid variability, and decentralized control. It applies lean manufacturing concepts and queuing theory specifically to product development, showing how to improve speed, quality, and efficiency.