# EdgeX Service Layers

## **Content**

* Architecture
* Southbound microservices
* Northbound microservice

## Architecture

![](/files/-LdcToNhb-lZDISL_ckD)

Device Services (DS) are the edge connectors interacting with the devices or IoT objects. Device services may service one or a number of devices, including sensors, actuators, and so forth.


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