The Principles of Product Development Flow: Second Generation Lean Product Development by Donald Reinertsen its neither a manifesto (like agile) not a specific

The Principles of Product Development Flow: Second Generation Lean Product Development by Donald Reinertsen its neither a manifesto (like agile) not a specific architecture (like scrum or safe or XP or kanban, etc). instead it's collecting the underlying _principles_ of collaborative software engineering flow and it's motivating why they work.