BPMN 2.0 - 06 Exclusive Gateway with Loop

In this example, the sequence flow for the "incomplete" case flows to the upstream joining gateway on the left, so that a loop is created. If an order is incomplete, it needs to be complemented and then checked again. Since it still can be incomplete, a token can flow several times through the loop. The complete article with all BPMN animation flow videos and comments: http://www.kurze-prozesse.de/en/bpmn-token-flow/ The video has been created with this tool: http://www.kurze-prozesse.de/en/download-bpmn-token-flow-animation-tool/