This command is used to invoke the DDM Services which offer functions that are needed to create and maintain Natural data definition modules (DDMs).
For further information, see DDM Services in the Editors documentation.
This command is not executable in batch mode.
This command is not available via Natural Studio's command line in a
remote development environment, because DDMs are listed in the tree view under
the node DDM and all functions of the
SYSDDM utility are available
via the context menu or the menu bar.