For any question visit the OrientDB User Group. To look at the future of OrientDB please consult the Roadmap.

This is the summary of the documentation about Orient DB project.

• Presentations - Tutorials
• Presentations of OrientDB on Snoopal document platform
• Download
• Continuous integration kindly hosted and managed by Andrey Lomakin
• Installation
• Architecture
• Who is using OrientDB in production? here some case stories
• Concepts
• URL, Record, Document, RecordID, Class, Relationships, Database, Storage, Cluster, Data Segment
• Hot Topics
• All the Supported types
• Object Oriented Inheritance
• Security architecture
• Indexes to speed up searches
• Caching levels
• Clustering more OrientDB servers all together
• Replication between servers
• Logging strategies
• ACID Transactions
• Memory Management
• Binary data management (BLOB)
• Drivers and Language Bindings (supported programming languages) - Plugins
• Configuration and Performance tuning
• Import from RDBMS, how to import Relational exports
• Troubleshooting
• Troubleshooting Java API

• API
• Java APIs
• JavaDoc (latest version)
• Document Database
• Object Database
• Object to record Java binding
• GraphDatabase
• Native raw implementation
• Tinkerpop implementation with the usage of Gremlin language
• Traverse records
• JDBC
• Use it from Java Web Applications
• Manage remote server instance via API
• Multi Threading
• Fetching strategies
• Manage the Schema
• Hooks - Triggers
• Embed the Server
• Troubleshooting Java API
• Scala API
• Javascript API
• HTTP RESTful API

• Query languages:
• SQL
• SQL expression syntax - Operators - Functions
• Select used as command and for queries
• Traverse to cross records by relationships
• Insert to insert new records
• Update to update one or more records
• Delete to delete one or more records
• Truncate Class, Truncate Cluster, Truncate Record
• Grant and Revoke
• Create Class, Alter Class, Drop Class, Create Property, Alter Property, Drop Property
• Create Index, Rebuild Index, Drop Index
• Create Link
• Find References
• Alter Database, Alter Cluster
• Pagination
• Syntax
• Javascript

• TinkerPop integration and support
• Tinkerpop implementation with the usage
• Rexster Support and configuration
• Gremlin usage

• DB Server - (roadmap - history)
• Automatic backup
• HTTP RESTful Protocol
• Network BINARY protocol
• Wrapping as a Windows Service

• OrientDB Studio app

• Console
• Connect, Disconnect
• Create Database, Drop Database
• Create Cluster, Drop Cluster
• Info, Info Class, Classes, Clusters
• Browse Cluster, Browse Class
• Dictionary Keys, Dictionary Get, Dictionary Put, Dictionary Remove
• Load Record, Reload Record, Display Record, Export Record
• Export database, Import database
• Config, Config Get, Config Set
• Profiler, Declare Intent, Properties, Get, Set
• Share Database

So many Open Source projects lack documentation. Please help us to improve it by writing to the Group!