The SYSDDM utility is used to create, maintain and delete Natural data definition modules (DDMs).

The SYSDDM Utility documentation is organized in the following parts:

Principles of Operation

Invoking and Terminating SYSDDM

Using SYSDDM Maintenance and Service Functions

Creating DDMs

Invoking and Terminating the DDM Editor

Using the DDM Editor

Cataloging a DDM

Listing DDMs

Maintaining DDMs in Different Environments