Hi, I am implementing an ad-hoc subprocess similar to the one described in the Drools&jBPM blog: http://planet.jboss.org/view/post.seam;jsessionid=24F0449616816E6271113E1... I am using BPMN 2.0 and drools 5.1 After I created a embedded subprocess, I changed the xml element to adHocSubProcess and added a rulegroup associated with this subprocess. My question is, how can I trigger one of the tasks (or process fragments) in the ad-hoc subprocess? The following function can only be used to trigger a reusable subprocess: drools.getWorkingMemory().startProcess("org.drools.examples.cdss.ClinicalPathwayX"), instead of isolated tasks/fragments in the adhoc subprocess. Further, can this be done in the java class using API, instead of using rules? Any help will be appreciated, better with examples. Thanks a lot! Best regards, ---- Wen