You can use Ant to invoke the DITA Open Toolkit (DITA-OT) and generate output. This is
the most robust method of transforming DITA content; you can use the complete set of
parameters that are supported by the toolkit.
Ant
Ant is a Java-based, open-source tool that is provided by the Apache Foundation. It can be used to declare a sequence of build actions. It is well suited for both development and document builds. The full-easy-install version of the toolkit ships with a copy of Ant.
Building output using Ant
You can build output by running the ant command and specifying the DITA-OT parameters at the command prompt. You also can use an Ant build script to provide the DITA-OT parameters
Creating an Ant build script
Instead of typing the DITA-OT parameters at the command prompt, you might want to create an Ant build script that contains all of the parameters.