Module encapsulates a Baja software module which is packaged and delivered as a JAR file with a "meta-inf/module.xml" description. Modules are the basic unit of software deployment in the Baja architecture. Module names must be one to 25 ASCII characters in length and globally unique. Modules are available in the Workbench ModuleSpace (named “My Modules” under “My Host”).

For related details, see the section About modules, including subsections About module characteristics, as well as Working with modules, including subsections Creating a new (.jar) module.