PAPAO management model is about selecting the proper method for large initiatives. Be it projects, operations, products, or value streams; each can be perceived through two simple questions that can guide the organization in selecting the suitable management model for the initiative: What is the lifespan of the work we are about to initiate? Do we have previous experience in solving challenges like this, or is this a new area for us? Asking the above two questions can pinpoint what method could be the best to solve the challenges that lie ahead. In this book, we explore what four methodologies do best.