# Entity maps

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Entity maps help teams understand the relationships between business concepts.

When entities are assigned to a domain or service, EventCatalog can create an entity map that shows:

* The entities assigned to that resource.
* Relationships between those entities.
* Entities referenced from outside the current resource.
* Which entities are owned by the current domain or service context.

![Entity Map](/assets/images/entity-map-e1404c5598cceb7732a548eae61bc0e6.png)

## Open an entity map in the visualizer[​](#open-an-entity-map-in-the-visualizer "Direct link to Open an entity map in the visualizer")

Domains and services have dedicated entity map routes:

```
/visualiser/domains/{id}/{version}/entity-map
/visualiser/services/{id}/{version}/entity-map
```

When a domain or service has entities assigned, an **Entity Map** link appears automatically in the resource sidebar under the visualizer section.

## Embed an entity map[​](#embed-an-entity-map "Direct link to Embed an entity map")

You can also embed an entity map on a page using the `<EntityMap />` component.

```
<EntityMap id="ordering" title="Ordering Entity Map" />
```

![Entity Map Component](/assets/images/entity-map-component-2fd5621f4528ad14c72e627e80d6a471.png)

Use embedded entity maps when you want the model to appear directly in domain, service, or custom documentation.

## Next steps[​](#next-steps "Direct link to Next steps")

* [Model entity relationships](/docs/development/guides/resources/entities/model-entity-relationships.md)
* [EntityMap component reference](/docs/development/components/components/entitymap.md)