You can import data from a DMN file to ARIS and use the DMN diagrams that are generated by the import in ARIS.
Procedure
Select a group.
Activate the Contents tab bar.
Click Import > Import DMN file. The Import DMN file dialog opens.
Select the DMN file and click Open. The DMN import complete dialog provides information about the result of the import. If ARIS contains already diagrams, a dialog opens. You can choose whether the diagrams in ARIS should be overwritten.
The DMN specification 1.2 is not yet available in its final version. The implementation of the export is based on the last draft version of the specification from May 2018.
Click OK.
The generated DMN diagrams are displayed. If multiple DMN diagrams are generated, they are all opened.