Gateways

Gateways control token flow in a process. They allow modeling decisions based on data and events as well as fork / join concurrency.

Data-based Exclusive Gateway (XOR): Model decisions based on data.
Conditional and Default Sequence Flows: Concurrency and decisions without Gateways.
Parallel Gateway: Model fork / join concurrency.
Inclusive Gateway: Model conditional fork / join concurrency.
Event-based Gateway: Model decisions based on events.