# Human-Machine Interface

Operations · `human-machine interface` · verification: source checked

A human-machine interface is the hardware or software through which an operator interacts with a controller. It can be a physical control panel with buttons and indicator lights, or an industrial PC with a color graphics display running dedicated HMI software.

## Specification

| Property | Value |
|---|---|
| Kind | system |
| Origin | NIST SP 800-82r3 (from NISTIR 6859) |

## Study notes

- Source: NIST SP 800-82r3, from NISTIR 6859.
- HMI implementations range from physical control panels to industrial PCs with dedicated HMI software.

## Sources

1. [human-machine interface - Glossary | CSRC](https://csrc.nist.gov/glossary/term/human_machine_interface) (accessed 2026-10-25)

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JSON: https://machineschema.com/operational/hmi.json  
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