  Industry 4.0 or Industrial IoT both describe new paradigms for seamless
interaction between humans and machines. Both concepts rely on intelligent,
inter-connected cyber-physical production systems that are able to control the
process flow of industrial production. As those machines take many decisions
autonomously and further interact with production and manufacturing planning
systems, the integration of human users requires new paradigms. In this paper,
we provide an analysis of the current state-of-the-art in human-machine
interaction in the Industry 4.0 domain.We focus on new paradigms that integrate
the application of augmented and virtual reality technology. Based on our
analysis, we further provide a discussion of research challenges.
