Properties can be attached to a various BPMN elements (Process, Activity, Message etc.).

The BPMN properties of an object are modeled inside the BPMN Allocation Diagram (which MAY be assigned to the property owner).

Properties are modeled as separate ARIS objects which are connected with a has connection towards the object which encompasses the properties. Process properties are connected with the pool object which represents the BPMN/BPEL Process.