Risks in Creating a New User Interface
Case in point: last week Nest decided to halt the sale of its new Protect smart smoke alarm because it found a flaw in the sensor and gesture-based UI. It turns out that the function that enabled users to pause an alarm by waving at it could also be unintentionally triggered by other types of movement. The fear was that if there was a fire and the alarm was going off, a nearby movement could falsely pause the alarm.
