# Data Types
<a name="API_Types"></a>

The Amazon Elastic File System API contains several data types that various actions use. This section describes each data type in detail.

**Note**  
The order of each element in a data type structure is not guaranteed. Applications should not assume a particular order.

The following data types are supported:
+  [AccessPointDescription](API_AccessPointDescription.md) 
+  [BackupPolicy](API_BackupPolicy.md) 
+  [CreationInfo](API_CreationInfo.md) 
+  [Destination](API_Destination.md) 
+  [DestinationToCreate](API_DestinationToCreate.md) 
+  [FileSystemDescription](API_FileSystemDescription.md) 
+  [FileSystemProtectionDescription](API_FileSystemProtectionDescription.md) 
+  [FileSystemSize](API_FileSystemSize.md) 
+  [LifecyclePolicy](API_LifecyclePolicy.md) 
+  [MountTargetDescription](API_MountTargetDescription.md) 
+  [PosixUser](API_PosixUser.md) 
+  [ReplicationConfigurationDescription](API_ReplicationConfigurationDescription.md) 
+  [ResourceIdPreference](API_ResourceIdPreference.md) 
+  [RootDirectory](API_RootDirectory.md) 
+  [Tag](API_Tag.md)