| Orocos | The project wide Orocos namespace contains all user classes of various projects |
| RTT | State Machines, Activities, XML Properties, Scripting, |
| RTT::Corba | The Corba namespace is used to hold both the Orocos CORBA interfaces and Orocos CORBA implementations |
| RTT::detail | Implementation specific classes, not intended for users |
| RTT::DLib | This Namespace contains helper classes for the minimal and real-time 'Distribution Library' of Orocos |
| RTT::OS | OS Abstractions such as Mutexes, Semaphores and Threads |
| RTT::rt_std | (Almost) Real-Time output streams |
