# Managing a namespace

When necessary, you are able to set and edit namespace for each of the element in the a created XML tree of the input or the output data flow.

### In this section

* [Defining a namespace](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-08/defining-namespace)
* [Modifying the default value of a namespace](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-08/modifying-default-value-of-namespace)
* [Deleting a namespace](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-08/deleting-namespace)