> For the complete documentation index, see [llms.txt](https://endash-guidance-docs.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://endash-guidance-docs.gitbook.io/docs/data/directed-acyclic-graph-dag.md).
# Directed Acyclic Graph (DAG)
## Overview
* The Directed Acyclic Graph (DAG) is a useful tool for checking and understanding data models. By representing your data model as a DAG, you can easily visualize relationships, dependencies, and the overall structure of your data.
* To open, click on the main page of Data then click on the Graph tab on the left menu sidebar.
* The DAG will display the data model showing relationships between them.
* Click the Editor tab to come back to the main Data page if the left side menu is closed.
## Customize the DAG
* The icons on the left will help you check or customize your DAG.
* On the bottom right is the mini map for the DAG.
* You can add any content just like the [AI Text note](/docs/dashboard/widget-types/ai-text-note.md) widget.
* You can change the Orientation or turn ON / OFF the mini map.
***
* Any actions that change the position of date models will activate the Save button. You should click it if you have done customizing your DAG.
* Click the Discard button to revert it back.
{% hint style="info" %}
Member(s) of the Team can change the position but can not save change.
{% endhint %}
## Customize the Data model(s)
* Click on the data model will display a list of options for customization.
* Click on the Color dropdown and select any available color to change it.
Click on the Rename button to quickly rename the data model.
* You can also add the Description of the data model here.
* Click the X button on the Description to remove it.
* You can quickly open the data model details page on the main Data page.
## Check any error data model
* If there is any incorrect data model, you can check the issues section to locate it quickly.
