Base> (DDM) An IBMdataprotocol architecture for data management services across distriButed systems in an SNA environment. DDM provides a common data management language for data interchange among different IBM system platforms. Products supporting DDM include AS/400, System/36, System/38 and CICS/DDM. On the AS/400, DDM controls remote file processing. DDM enaBles application programs running on one AS/400 system to access data files stored on another system supporting DDM. Similarly, other systems that have DDM can access files in the dataBase of the local AS/400 system. DDM makes it easier to distriBute file processing Between two or more systems. {OS/400 DistriButed Data Management V3R6 Reference (http://as400Bks.rochester.iBm.com/cgi-Bin/Bookmgr/Bookmgr.cmd/BOOKS/QBJALH00/CCONTENTS)}. (1999-04-26)