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

# Key concept

- [Entities and relations](https://docs.tesenso.com/tesenso-iot-cloud/guides/entities-and-relations.md)
- [Entity Groups](https://docs.tesenso.com/tesenso-iot-cloud/guides/entity-groups.md)
- [Attributes](https://docs.tesenso.com/tesenso-iot-cloud/guides/attributes.md)
- [Device Profiles](https://docs.tesenso.com/tesenso-iot-cloud/guides/device-profiles.md)
- [Telemetry data](https://docs.tesenso.com/tesenso-iot-cloud/guides/telemetry-data.md)
- [Device alarms](https://docs.tesenso.com/tesenso-iot-cloud/guides/device-alarms.md)
- [Version control](https://docs.tesenso.com/tesenso-iot-cloud/guides/version-control.md)