The xAPI Overview Broadly defined, the Experience API (xAPI) lets applications share data about human performance. More precisely, xAPI lets you capture (big) data on human performance, along with associated instructional content or performance context information. xAPI applies human (and machine) readable “activity streams” to tracking data and provides sub-APIs to access and store information about state and content. This enables nearly dynamic tracking of activities from any platform or software system—from traditional Learning Management Systems (LMSs) to mobile devices, simulations, wearables, physical beacons, and more. xAPI can track micro-behaviors, state, and context such as… Reading an article or interacting with an eBook Watching a training video, stopping and starting it Training data from a simulation Performance in a mobile app Chatting with a mentor Physiological measures, such as heart-rate data Micro-interactions with e-learning content Team performance...