# Zones

*Zones* are collections of [systems](https://engine.place.technology/key-concepts/systems). A system can be tagged as a member of any number of zones.

![Zones have settings and a collection of systems.](https://796740843-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LXbPMSOmjepiJyvIzWf%2F-LZZ2VxMcWDN260xsu4a%2F-LZZ3h3uyjW3MAURDd1v%2Fconcepts-zone.svg?alt=media\&token=36373654-3f1b-4d2a-867a-443c15753925)

They serve two main purposes:

1. Logical groupings of systems with common traits (such as those in the same building, or of the same basic type).
2. A point to define settings that compose across systems.