Summary
- Motion-to-photon delay and calibration determine whether an overlay informs or distracts.
- Deployments need privacy limits, offline behaviour and an update plan for devices and spatial data.
Augmented reality combines a camera, sensors, software and a display to place digital information over a live environment. Its value should be tested in the conditions where a decision is made: poor light, weak connectivity, moving users and changing physical layouts. A demo that works once does not show whether labels remain aligned or whether data collection is proportionate. The next evidence should be a field trial that records delay, error, user attention and the consequences when the service or device stops receiving updates.


