1# ArkData (Ark Data Management) 2 3- [Introduction to ArkData](data-mgmt-overview.md) 4- Unified Data Definition<!--uniform-data-definition--> 5 - [Unified Data Definition Overview](unified-data-definition-overview.md) 6 - [UTDs](uniform-data-type-descriptors.md) 7 - [Uniform Data Structs](uniform-data-structure.md) 8 - [Prebuilt UTDs](uniform-data-type-list.md) 9- Application Data Persistence<!--app-data-persistence--> 10 - [Application Data Persistence Overview](app-data-persistence-overview.md) 11 - [Persisting Preferences Data](data-persistence-by-preferences.md) 12 - [Persisting KV Store Data](data-persistence-by-kv-store.md) 13 - [Persisting RDB Store Data](data-persistence-by-rdb-store.md) 14 - [Persisting Vector Store Data (ArkTS)](data-persistence-by-vector-store.md) 15 - [Persisting Vector Store Data (C/C++)](native-vector-store-guidelines.md) 16 <!--Del--> 17 - [Persisting Graph Store Data (for System Applications Only)](data-persistence-by-graph-store.md) 18 <!--DelEnd--> 19- Distributed Application Data Sync<!--distributed-data-sync--> 20 - [Overview of Distributed Application Data Sync](sync-app-data-across-devices-overview.md) 21 - [Cross-Device Sync of KV Stores](data-sync-of-kv-store.md) 22 - [Cross-Device Sync of RDB Stores](data-sync-of-rdb-store.md) 23 - [Cross-Device Sync of Distributed Data Objects](data-sync-of-distributed-data-object.md) 24- Data Reliability and Security<!--data-reliability-security--> 25 - [Data Reliability and Security Overview](data-reliability-security-overview.md) 26 - [Database Backup and Restore](data-backup-and-restore.md) 27 - [Database Encryption](data-encryption.md) 28 - [Access Control by Device and Data Level](access-control-by-device-and-data-level.md) 29 - [Using an EL5 Database](encrypted_estore_guidelines.md) 30- Cross-Application Data Sharing<!--cross-app-data-share--> 31 - [Overview of Cross-Application Data Sharing](data-share-overview.md) 32 <!--Del--> 33 - One-to-Many Data Sharing (for System Applications Only)<!--one-to-many-data-share--> 34 - [Sharing Data via DataShareExtensionAbility](share-data-by-datashareextensionability.md) 35 - [Silent Access via DatamgrService](share-data-by-silent-access.md) 36 <!--DelEnd--> 37 - Many-to-Many Data Sharing<!--many-to-many-data-share--> 38 - [Sharing Data via Unified Data Channels](unified-data-channels.md) 39- Intelligent Data Construction and Retrieval<!--intelligence-data--> 40 - [AIP Overview](aip-data-intelligence-overview.md) 41 - [Application Data Vectorization](aip-data-intelligence-embedding.md) 42- [RelationalStore Development (C/C++)](native-relational-store-guidelines.md) 43- [UDMF Development Guide (C/C++)](native-unified-data-management-framework-guidelines.md) 44- [Persisting User Preferences (C/C++)](preferences-guidelines.md) 45 46