# HMIs

- Source: https://support.icompaas.com/support/solutions/articles/62000225217-hmis
- Section: [Solutions](https://support.icompaas.com/support/solutions) › [CyberSecurity Taxonomy](https://support.icompaas.com/support/solutions/62000112345) › [CyberSecurity-Topics](https://support.icompaas.com/support/solutions/folders/62000168169)
- Last updated: 2026-05-29
- Publisher: iCompaas, Inc. (https://www.icompaas.com)

HMI-Human Machine Interface is a user interface or dashboard that connects person to a machine, system or device. HMIs are used an operator's means to interact with PLC's RTU's and IED's. 

  

**Common features of HMI:**

A keyboard or mouse that allows the user to input information

A power supply that provides power to the system

One or more speakers that output sound

A display screen that shows information to the user

  

**Uses:**

To optimize an industrial process by centralizing or digitizing information for viewers. 

Alarms and warnings

Reliable messaging

Improved communication

## Related compliance guidance

- [SOC 2 compliance: a practical implementation guide for cloud-native SaaS teams](https://support.icompaas.com/compliance/soc-2-trust-services-criteria): Configuration checks like this one are the technical half of a SOC 2 / ISO 27001 programme — the guide shows where they fit, what else an auditor expects, and how to evidence them.
- [ISO/IEC 27001:2022 compliance: a practical implementation guide](https://support.icompaas.com/compliance/iso-27001-2022): ISO 27001 Annex A.8 (technological controls) is where cloud hardening evidence lands; the guide shows how to run the ISMS around it.