Compare Enterprise Modeling and Visualization diagrams

Compare different versions of Enterprise Modeling and Visualization diagrams and learn the details of the differences from the summary that is generated by Now Assist in the Enterprise Architecture Workspace.

Before you begin

Note:

Depending on your license, you will have access to certain application features, generative AI skills, agentic workflows, and AI agents. For more information, see ServiceNow product tiers.

Important:

This Now Assist skill is turned on by default. The skill will be automatically available to appropriate role users for the application. For more information, see Now Assist skills, agents, and agentic workflows on by default.

You can use Now LLM Service, Now LLM Long Term Stable models (LTS), Azure OpenAI, Google Gemini or Anthropic Claude on AWS as the AI model provider for all Now Assist skills and AI agents. Use the Configuration Controls in AI Control Tower to define which options are available, then set the skill-level preferences in the Now Assist Admin console. For more information, see Large language models on the ServiceNow AI Platform®.

Role required: sn_apm.apm_read and sn_apm.apm_user

About this task

Enterprise Modeling and Visualization diagrams often have complex architecture layers like business capabilities, application hierarchy, and process flows. Manual comparison can be time-consuming or error-prone. Using the diagram change analysis Now Assist skill, you can quickly generate a change summary.

You can compare any two diagram versions, not just adjacent versions. For example, you can compare version 3.0 with version 1.0, or version 4 with version 2.

The change summary generated by Now Assist includes an executive summary of changes between the primary version and the comparison version. The summary also includes details of shapes or entities that have been added, modified, or removed.

When you compare two diagram versions, the comparison screen highlights the differences on the canvas:

• New shapes added in the primary version are highlighted in green.
• New relationship lines added in the primary version are highlighted in green.
• Modified shapes are highlighted in yellow.
• Modified relationship lines are highlighted in yellow.

  

Procedure

1. Navigate to Workspaces > Enterprise Architecture Workspace.
2. Open the Modeling page by selecting the Enterprise Modeling and Visualization icon ().
3. Select the diagram that you want to compare versions for.
4. Select Compare versions.
   The Compare versions button isn’t available when you open a diagram that has only one version.

   

   The Compare versions pop-up window appears.

   

5. In the Compare versions pop-up window select the versions that you want to compare:
   1. Select the primary version of the diagram from the Primary version drop-down list.
   2. Select another version of the diagram from the Version to compare drop-down list.

   Note:

   You can compare any two versions, not just consecutive versions. For example, you can compare version 3.0 directly with version 1.0.
6. Select Compare.
   The Compare versions tab appears and a change summary is generated in the Now Assist side panel. The Now Assist side panel displays the following sections:

   • Executive summary: A Now Assist generated summary of the key changes between the selected versions.
   • Diagram changes: Changes to shapes, entities, or relationships that have been added, modified, or deleted.

     

     Note:

     • Select the edit icon () to change the existing diagram versions and generate a fresh diagram comparison summary.
     • Select the refresh icon () if you have changed the primary version of the diagram and want to generate a fresh diagram comparison summary.
     • Select the helpful icon () or not helpful icon () to provide feedback on the change summary generated by Now Assist. This feedback helps Now Assist to generate better change summaries.
     • Select the copy summary icon () to copy the diagram change summary created by Now Assist.
     • Select the Now Assist icon () to close the Now Assist side panel.