What is augmented reality?
Augmented reality overlays digital information in relation to a user’s physical surroundings.
How it works and where it is used
A phone or headset tracks position and movement to make a virtual object appear anchored. Uses include training, maintenance, navigation and design. Lighting, tracking accuracy and occlusion affect realism. An on-screen guide should not be assumed to align perfectly with a physical object.
Limits, safety and selection criteria
Distraction and physical obstacles are safety issues. Cameras may capture people and private spaces, making data minimization and consent important. Test discomfort, readability and accessibility for different users. An AR system might mark valves for a maintenance worker. If the overlay drifts onto the wrong valve, safety is at risk; the app should show tracking confidence and allow work to stop. A phone occupies the hands, while a headset adds weight and battery limits. In training, users should understand why a step matters rather than blindly follow arrows. Background details captured in maintenance photos can include personal information and need data controls.