> For the complete documentation index, see [llms.txt](https://docs.enlyze.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enlyze.com/en/resources/data-infrastructure.md).

# Data infrastructure

The data infrastructure describes how ENLYZE acquires your machines' data. While [sites and machines](/en/resources/production-hierarchy.md) represent what physically exists, this area describes the acquisition layer: where the raw data comes from and which device it reaches the platform through.

* [**Data sources**](/en/resources/data-infrastructure/data-sources.md): the controllers, meters, sensors, and IT systems that data is read from.
* [**Edge devices**](/en/resources/data-infrastructure/edge-devices.md): the devices that connect data sources and stream their data into the ENLYZE Manufacturing Data Platform.

How to connect data sources technically is explained in the [OT connectivity](/en/connect/ot-connectivity.md) and [IT connectivity](/en/connect/it-connectivity.md) sections.