Alexa Notifications and Interruption Model

Alexa Notifications and Interruption Model

Upon joining the central Alexa Voice Design team in late 2015, my first order of business was to tackle a complicated systems design problem: how could we adapt a primarily single-threaded, voice-forward, reactive experience to allow proactive notifications? There was a great deal of caution surrounding the effort, as our product has been invited into homes, and we did not want to violate that trust. Further complicating matters was the as-then-unannounced Echo Show, which completely changed the interaction paradigm. While Echo had not supported large-scale multitasking, the Echo Show introduced the concept of navigation and a sort of back stack.…
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