---
title: Working with Gantt chart views in EA Workspace
description: The Gantt charts in the Enterprise Architecture Workspace allow toggling between TLM \(Technology Lifecycle Management\) and TRM \(Technology Reference Model\) views. This enables enterprise architects to visualize key lifecycle stages such as deployment, maintenance, and retirement. Identify risks like outdated configurations or unsupported technologies.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/application-portfolio-management/eaw-work-with-gantt-chart-views.html
release: australia
topic_type: concept
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Managing Enterprise Architecture Workspace, Enterprise Architecture Workspace, Enterprise Architecture]
---

# Working with Gantt chart views in EA Workspace

The Gantt charts in the Enterprise Architecture Workspace allow toggling between TLM \(Technology Lifecycle Management\) and TRM \(Technology Reference Model\) views. This enables enterprise architects to visualize key lifecycle stages such as deployment, maintenance, and retirement. Identify risks like outdated configurations or unsupported technologies.

-   **[View TLM and TRM lifecycle timelines on the Gantt chart](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/application-portfolio-management/eaw-view-tpm-and-trm-lifecycle-timelines-in-gantt-chart.md)**  
Use the Gantt chart to view and track Technology Lifecycle Management \(TLM\) and Technology Reference Model \(TRM\) lifecycle timelines.

**Parent Topic:**[Managing Enterprise Architecture Workspace](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/application-portfolio-management/eaw-managing-ea-workspace.md)

**Related topics**  


[Gantt view of TLM and TRM lifecycle timelines](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/application-portfolio-management/eaw-gantt-view-of-tpm-and-trm-lifecycle-timelines.md)