We now live in a world where people can communicate, in real-time, both directly and remotely (e.g., Skype); and where new technologies (e.g., virtual reality, robots, driverless cars) are blurring the traditional lines of human-human and human-computer interactions. The digital world of industry is experiencing a revolution. Products that have traditionally been displayed on computer screens, smart phones, and tablets as two-dimensional (2D) experiences are now beginning to be displayed in 3D, as augmented, mixed, or virtual reality.