Gateways
Gateways allow you to model branches, decisions and merges in BPMN diagrams.
Branches and decisions are places in a process where the process flow is split up. Merges are places in a process where the process flow is merged.
You can also assign gateways to process owners who make the decision or at least have responsibility for it.
Create a gateway
See also: Chapter Create a shape in a BPMN diagram.