The underlying premise for Industry 4.0 is a systems approach. This book introduces the concept of Systems 4.0 as a foundational requirement for the success of Industry 4.0 in the same way that Quality 4.0 has emerged to advance Industry 4.0. Systems 4.0: Systems Foundations for Industry 4.0 discusses the role of the professional engineer in advancing commerce and industry. It offers an introduction to Industry 4.0 and how to leverage the digital era to improve industrial operations. The book presents and describes the first industrial revolution on through to the fourth revolution and provides general systems engineering principles that can be used with Industry 4.0. This is a practical guide for professional engineers and consultants involved in Industrial Engineering, Mechanical Engineering, Operations Management and can also be used as a reference for students.