# ArkData (Ark Data Management) - [Introduction to ArkData](data-mgmt-overview.md) - Unified Data Definition - [Unified Data Definition Overview](unified-data-definition-overview.md) - [UTDs](uniform-data-type-descriptors.md) - [Uniform Data Structs](uniform-data-structure.md) - [Prebuilt UTDs](uniform-data-type-list.md) - Application Data Persistence - [Application Data Persistence Overview](app-data-persistence-overview.md) - [Persisting Preferences Data](data-persistence-by-preferences.md) - [Persisting KV Store Data](data-persistence-by-kv-store.md) - [Persisting RDB Store Data](data-persistence-by-rdb-store.md) - Distributed Application Data Sync - [Distributed Application Data Sync Overview](sync-app-data-across-devices-overview.md) - [Cross-Device Sync of KV Stores](data-sync-of-kv-store.md) - [Cross-Device Sync of RDB Stores](data-sync-of-rdb-store.md) - [Cross-Device Sync of Distributed Data Objects](data-sync-of-distributed-data-object.md) - Data Reliability and Security - [Data Reliability and Security Overview](data-reliability-security-overview.md) - [Database Backup and Restore](data-backup-and-restore.md) - [Database Encryption](data-encryption.md) - [Access Control by Device and Data Level](access-control-by-device-and-data-level.md) - [Using an EL5 Database](encrypted_estore_guidelines.md) - Cross-Application Data Sharing - [Data Sharing Overview](data-share-overview.md) - One-to-Many Data Sharing (for System Applications Only) - [Sharing Data via DataShareExtensionAbility](share-data-by-datashareextensionability.md) - [Silent Access via DatamgrService](share-data-by-silent-access.md) - Many-to-Many Data Sharing - [Sharing Data Using Unified Data Channels](unified-data-channels.md) - [RelationalStore Development (C/C++)](native-relational-store-guidelines.md) - [UDMF Development Guide (C/C++)](native-unified-data-management-framework-guidelines.md) - [Persisting User Preferences (C/C++)](preferences-guidelines.md)