<p>This Reprint examines the evolving role of human-machine interfaces (HMI) within the context of Industry 4.0 and digital manufacturing where human and machine intelligence are increasingly integrated to enhance design production and decision-making. It highlights research on advanced interaction technologies that move beyond traditional tools toward dynamic collaborative relationships between humans and autonomous systems. Topics include novel design patterns in perception control and arbitration; the application of human expertise in machine decision-making; and the use of sensory data for informed adaptive manufacturing processes. By bringing together contributions from both academic and industrial perspectives the Reprint provides a comprehensive view of the opportunities challenges and future directions for human-machine collaboration in digital manufacturing.</p>