IBM Dependency Based Build (DBB) provides the capabilities to build traditional z/OS applications such as COBOL and PL/I. The goal of DBB is to provide some automation capabilities based on a modern scripting language that can be used on z/OS. DBB is built as a stand-alone product that does not require a specific source code manager or pipeline automation tool.

IBM Dependency Based Build is included in IBM Developer for z/OS Enterprise Edition and is also available as a standalone product.



The toolkit provides a set of Java APIs that can be used to define an intelligent build script. The toolkit contains a Groovy configured to use with the APIs to simplify the process of creating the intelligent build script. The APIs can be used with any other language, the samples provided will use Groovy. The APIs include capability such as:

  • Run MVS commands
  • Run TSO/ISPF commands
  • Store and retrieve dependency information
  • Utility capabilities such as copying to PDSE from z/OS
  • zImport capability for migration to git
  • Ability to create and store the build report

The toolkit is included in IBM Developer for z/OS Enterprise Edition and is also available as a standalone product. Please refer to the "Downloads" tab on this page for more details.

Web Application

The web application is used to store and retrieve the dependency information and to store build reports. The web application is to be used by provided REST APIs and the toolkit APIs to create the intelligent build scripts.

Click here to download.

The next step is to follow the server setup guide found in the IBM Documentation.


The samples provide a set of Groovy scripts along with example programs to demonstrate how intelligent build scripts can be created. The samples are built such that they can be used as a starting point for a build process. You can download the .tar.gz file and extract it with the tar command. The samples will be maintained in https://github.com/IBM/dbb.

Download instructions for toolkit

  • As a part of IBM IDzEE

    Download via Shopz

    You can use Product ID 5655-AC5 or product name to search for IBM Developer for z/OS Enterprise Edition. For how to order products in Shopz, see Shopz User's Guide.

  • As a trial for standalone


    To install the DBB toolkit trial on UNIX System Services:

    1. Create a directory for the DBB toolkit, such as /var/dbb.
    2. Upload dbb-ztoolkit-trial.tar to UNIX System Services.
    3. Extract the toolkit to /var/dbb by using a command such as: tar -C /var/dbb -xovf dbb-ztoolkit-trial.tar