Dynamic Data Management. Also known as Well Site Data Management (WDM). Electronically recording, processing and presenting surface and downhole information produced while drilling oil and natural gas wells. The oil and natural gas clients use this information on a real-time basis during drilling at the rig site or later for analysis. This information is often accessible on a real-time basis through a direct data connection or on a daily basis via the Internet.
Distributed Data Management. A function of the operating system that allows an application program or user on one system to use database files stored on a remote system. The system must be connected by a communications network, and the remote system must also use DDM. The term also applies to the underlying communications architecture.
Distributed Data Management. An underlying database architecture provided by the host system, used by IBM.