How can I connect a BPMN task and a UML use case in Modelio?
Modelio provides a powerful and general purpose “trace” mechanism relying on the standard UML dependency. The Fast Link editor provides a means of tracing two model elements. Select the task in the BPMN editor, put the Fast Link Editor in edit mode (using the “pen” icon), drag & drop the traced use case from the explorer to the Fast link Editor. You can also drag & drop the use case in the BPMN diagram, and create a trace link in the BPMN diagram if you want to show it in the diagram.