---
sourceDocument: Australia Telecommunications Network Inventory
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/telecom-network-inventory

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia Telecommunications Network Inventory

ft:clusterId :

    - telninv

bundleId :

    - telninv

workflow :

    - Customer and Industry


---

# Define a network model relationship

# Define a network model relationship {#ariaid-title1}

Release version: Australia  
Updated March 12, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Create a network model relationship in the Telecommunications Network Inventory
application that captures the relationships between your network model entities.

## Before you begin

Role required: sn_ni_core.inventory_admin,
sn_ni_core.telco_inventory_catalog_manager

## About this task

A model relationship captures the relationships between the inventory models. By defining the relationships between the various network model entities, you can also define the compatibility between these entities.

For example, if you select Equipment to Slot in the
Relationship Type field, you can define the relationship
between a specific equipment inventory model and a specific slot inventory model. In
this case, you would see that the number of slots in the specified slot model are
compatible with the specified equipment model. To learn more, see [Modeling network inventory relationships](https://servicenow-prod.fluidtopics.net/VsOdKS1GIzk6jr35c0kmSQ "You model your network inventory relationships in the Telecommunications Network Inventory application so that you can use them in the inventory template relationships to create your network inventory records.").

When you create a network model relationship, it creates a model in the Network Model
\[sn_ni_core_network_model_relationship\] table.

## Procedure

1. Navigate to WorkspacesNetwork Inventory Workspace.
2. Click the list icon (![List icon.]()), and then go to Inventory ModelsNetwork Model Relationships.
3. Click New.
4. Fill in the general information to create a network model relationship.  
   Note:  
   To learn more about the fields, see [Network Model Relationship fields](https://servicenow-prod.fluidtopics.net/Ds8A8DCDOT8evZG~_V3zIA "The Network Model Relationship form enables you to create a network model relationship.").
5. To add attachments, such as graphics or documents, click the attachment icon (![Attachment icon.]()) in the right panel.
6. Click Save.
7. To delete a model, click the options icon (![Options icon.]()) next to the Save button, and click Delete.
**Related concepts**   

* [Network inventory models](https://servicenow-prod.fluidtopics.net/Te50HeS2xscvIjU~5MQjxw "You define an inventory model in the Telecommunications Network Inventory application so that you can track the technical information from the manufacturer about a network asset such as the telco equipment or a network interface.")
* [Modeling network inventory relationships](https://servicenow-prod.fluidtopics.net/VsOdKS1GIzk6jr35c0kmSQ "You model your network inventory relationships in the Telecommunications Network Inventory application so that you can use them in the inventory template relationships to create your network inventory records.")

*[\>]: and then