# Folder

### Definitions

AppFlowy uses `workspace`,`app`,`view` to organize user data. These concepts are used in the frontend and backend.

As you see in the below picture, A `workspace` represent as the user root folder. The `workspace` contains a list of apps. The`app` represents as the sub-folder. It can be nested into another sub-folder. Currently, AppFlowy only supports one layer document structure. A `app` contains a list of `view`s.

![img.png](https://1003959744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fvs4LQcuzr0JR34ApS5sM%2Fuploads%2Fgit-blob-4873b11700efaa8ca1cdfe8660565bc8a85fb207%2Ffolder_map.png?alt=media)