---
sourceDocument: Australia Build or modify applications
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/application-development

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia Build or modify applications

ft:clusterId :

    - cadev

bundleId :

    - cadev

workflow :

    - Development, Data, and Analytics


---

# Design an app

# Design an app {#ariaid-title1}

Release version: Australia  
Updated March 12, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
ServiceNow provides a unified design system that improves usability and performance. It supports accessibility standards and ensures a consistent look and feel across the ServiceNow AI Platform.

## Key design principles {#design-an-app__section_lcn_4xg_qhc}

1. Follow ServiceNow design guidelines for consistency.
2. Plan for responsive behavior to support multiple devices.
3. Verify accessibility conformance for all UI elements.

For more information, see [Horizon Design System](https://horizon.servicenow.com/).

## Usage guidelines {#design-an-app__section_yfb_hzg_qhc}

Start with user personas to define workflows and UI needs. Avoid unnecessary custom styling to preserve governance.