> For the complete documentation index, see [llms.txt](https://engine.place.technology/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://engine.place.technology/key-concepts/systems.md).

# Systems

A *system* is a collection of [modules](/key-concepts/modules.md), [settings](/key-concepts/settings.md) and basic metadata (name, description etc). They provide the main logical building blocks within Engine deployments.

![Systems have settings and a collection of modules.](https://796740843-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LXbPMSOmjepiJyvIzWf%2F-LeJgKU2wtXLO2-R5TBW%2F-LeJgNwvu3yRHgUe6sss%2Fconcepts-system.svg?alt=media\&token=0172ec0a-4b96-426c-9aea-41205cd4b119)

Systems often represent physical spaces (such as a meeting room) but can also represent standalone items such as a digital signage endpoint or a non-physical system with information based inputs and outputs.