---
title: View TLM and TRM lifecycle timelines on the Gantt chart
description: Use the Gantt chart to view and track Technology Lifecycle Management \(TLM\) and Technology Reference Model \(TRM\) lifecycle timelines.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/application-portfolio-management/eaw-view-tpm-and-trm-lifecycle-timelines-in-gantt-chart.html
release: australia
topic_type: task
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Working with Gantt chart views in EA Workspace, Managing Enterprise Architecture Workspace, Enterprise Architecture Workspace, Enterprise Architecture]
---

# View TLM and TRM lifecycle timelines on the Gantt chart

Use the Gantt chart to view and track Technology Lifecycle Management \(TLM\) and Technology Reference Model \(TRM\) lifecycle timelines.

## Before you begin

Role required: sn\_apm.apm\_analyst

**Note:** The lifecycle data for software products is displayed only when the Software Asset Management \(SAM\) Foundation or Software Asset Management \(SAM\) Professional plugin is installed.

## Procedure

1.  Navigate to **Workspaces** > **Enterprise Architecture Workspace**.

2.  Open the Portfolio List view by selecting the portfolio icon \[Omitted image "portfolio-icon.png"\] Alt text: Portfolio icon..

3.  Next to **Business Applications**, select the expand row icon \(\[Omitted image "ExpandIcon.png"\] Alt text: Expand row icon.\) and then select **All**.

4.  Select **All**.

5.  Select the business application that you want to view the TLM and TRM lifecycle timelines for.

6.  Select **More** if you don't see the **Lifecycle Timelines** tab.

7.  Select **Lifecycle Timelines**.

    The Gantt chart appears for TLM and shows the business applications along with their application services.

    **Note:**

    By default, the TLM view is displayed.

8.  Next to the business application and its associated application services, select the expand row icon \(\[Omitted image "ExpandIcon.png"\] Alt text: Expand row icon.\) to see the lifecycle timeline bars in the Gantt chart.

    Alternatively, you can select the expand icon \(\[Omitted image "ExpandIcon.png"\] Alt text: Expand icon.\) next to the Application column header.

9.  Open the TRM view by selecting **TRM** from the Show list.

    \[Omitted image "TRM-selected-gantt-chart.png"\] Alt text: Show list displaying the TRM option.


**Parent Topic:**[Working with Gantt chart views in EA Workspace](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/application-portfolio-management/eaw-work-with-gantt-chart-views.md)

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