# Application configuration

The main tools to configure an application are two: [the Data model editor](data_model_editor.md), to create tables and fields, and the [Form designer](form_designer.md), to create [application forms](application_forms.md).

> **Tip:**
> 
> When making configuration changes to a live application, it’s important to minimize disruption for users. To reduce risk:
> 
> -   Consider working in a staging environment first, and deploy the changes using configuration bundles.
>     
> -   Consider making a copy of a form and do your changes there, before replacing the existing form.
>     
> -   Make changes during periods of low user activity.
>     
> -   Notify all application users in advance of the changes with [notifications](notifications.md).
>