Split at a parallel gateway (AND)
In a parallel process pass, a token is split at a branch and forwarded via each outgoing flow. In the BPMN process diagram, there are three ways to do this:
Parallel gateway
As soon as a token reaches a parallel gateway with two or more outgoing gates, one token with the process number of the activating token is forwarded to the subsequent objects.
Activity with multiple outgoing flows
As soon as an activity is completed, one token with the process number of the activating token is forwarded to a subset of the following objects.
Process/Subprocess
Parallel activities or processes in a Process or Subprocess object are carried out simultaneously. As soon as a token reaches a process or subprocess, one token with the process number of the activating token is forwarded to each activity or start object of the subprocesses if they have been included in the simulation.