In the May 2017 release of Oracle Application Builder Cloud Service we introduced integration with Oracle Process Cloud Service as a key new capability for your applications.
This integration allows you to create processes that map to business objects you created in Oracle ABCS, start the processes from your user interface or from triggers on your business objects, and interact with process steps, to-do lists, and activities from your application's UI.
Process Cloud Service (PCS) gives you a visual way to define complex processes that involve interaction across multiple people in your organization, along with capabilities to do conditional and parallel steps. Learn more here.
Here is a quick video showing you the basic integration between Oracle ABCS and Oracle PCS: