# Understanding pages and their types

A page is the canvas on which the user interface of the application is built. We build the user interface by placing various components on the page.

## Viewing the existing pages:

1. In the **Navigation menu**, under the **Developer** role, in the **Developer** group, click **Pages**. The list of all existing pages is displayed.

![List of existing pages](https://1117313960-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LzMJAXNyRSI4WE3Jt4z%2F-M2IeydQ9fT4EgGrMzGA%2F-M2IfUoqXbGVhVm-pbb2%2FList%20of%20pages.png?alt=media\&token=5681c5b4-812b-4e2c-be28-f60909647841)

{% hint style="info" %}
Note

To open the page canvas and design the user interface, click the required page URL.
{% endhint %}

## Understanding the types of pages

| **Page type** | **Description**                                                                                                                                                            |
| ------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Abstract**  | <p>These pages can be used as pre-defined template pages and to shelter multiple child pages.</p><p><em>You cannot edit the abstract pages through its leaf page.</em></p> |
| **Extension** | These pages can be used as a component in different user interfaces throughout the application.                                                                            |