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I am writing an ATL translation from BPMN2 to another model. The problem is that the code does not detect any nested element. I have posted the atl code and my input here at: https://github.com/behnaaz/BPMN2ATL.git You can see from the output that the only executed rule is def2mod which has created a Reo module element in the output. If I remove the first level element in the input bpmn file then the rule mapProcess is kicked in. Also in the logs the command BPMN20!Process.allInstances() which should give a list of all the Processes only works in the mapProcess rule. I think there is some