Gateways
The ARIS object type Rule depicts BPMN gateways. Although BPMN 2.0 knows five different gateway types, only one symbol is available in the symbol bar:
The remaining gateway symbols will be handled by the program. The following figure depicts all (basic) gateway symbols.
For event-based gateways there will be two additional symbols which are used to start a process:
All in all the ARIS method will provide eight gateway symbols. Contrary to events, an ARIS attribute recording the gateway type is not required. It is up to the modeler to ensure that gateways are used in a semantically correct way. The modeler should not reuse gateways.