You use the Change Current Process Language command from the Language menu in order to generate a data flow diagram from an Analysis business process diagram, when you need to represent the processes, at a high level of abstraction, in your information system from the viewpoint of data.
It automatically replaces the content of your current model by performing the appropriate transformations on the whole model, preventing you from doing any object selection.
For more information on the Change Current Process Language command, see Changing the Process Language of a BPM.
The following transformations are executed when you generate a data flow diagram from an Analysis business process diagram:
Decision objects are replaced with split/merge objects
Organization unit objects are replaced with external entity objects
Resource objects are replaced with data stores
Organization unit objects in top-level diagrams linked to processes using role association objects are replaced with external entity objects
Composite processes with start and end objects are replaced with external entity objects or process shortcut, depending on the input and output flows of the composite process. Data items are preserved