Augmented Reality (AR) — a broad class of user interface techniques intended to enhance a person’s perception of the world around them with computer generated information — aims to enhance the analog world.

Users, via wearable display screens, see the non-virtual world around them with digital information superimposed into their surroundings.

Programs are also being developed that can make smart assumptions about what users want to do next. AR researchers often use “Wizard of Oz” techniques — a testing method where users are unknowingly interacting with humans instead of computers — to fine-tune their programs and predict user actions.