Dynamic data object concepts
In compliance with Object Management Groups' (OMG) CORBA Persistent Object Service and Object Query Service Specification, IBM® Content Manager provides an implementation of the dynamic data object (DDO) and its extension, the extended data object (XDO), which are part of the CORBA Persistent Data Service (PDS) protocols. The concepts of DDO and XDO are not specific to any one content server, and can be used to represent data objects in any database management system supported by IBM Content Manager.
The dynamic data object is an interface used to move data in and out of a content server. DDOs exist in the application as run time objects, and therefore do not exist after an application terminates.