To map processes in X4 BPMS, you need to define the required business data structure for the Business Process.
You use Domain Model files (.domainmodel) to either create a three-level hierarchy for business data including corresponding descriptions or model complex data structures as data objects and thus add them to the process definition. You define the three-level hierarchy with business data structures on the Business Data tab. You can specify more complex data structures on the Data Object tab.
For more information on how to proceed on the respective tab, see the respective subpage.