Icon Symbol Description

A physical device, capable of data collection or distribution. Often (but not always) a device is also intrinsically a sensor.


A component that serves as an exit from the application for data or content. The touch screen on a mobile device could be an Output, as could be a haptic feedback device.


A component that observes some aspect of the physical world and creates data. Usually associated with a device.

Voice Agent

Represents a natural-language processing voice agent, such as Siri, Alexa, Cortina, OK Google etc.

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