How does the XOR gateway work in BPMN 2.0?

XOR gateway (Exclusive Gateway) in BPMN 2.0 is used to select one of several alternative process paths based on conditions. When the XOR gateway is reached, the process will continue along only one of the outgoing paths for which the condition is true.

If no condition is met, the process will either stop or follow a default path if one is set. The XOR gateway does not allow parallel traversal of multiple paths — this is a difference from the AND gateway.

Example: in an order processing process, if the order amount exceeds 1000, the approval path with a manager is chosen; otherwise, automatic processing is performed.