Gateways allow you to create and synchronize multiple process flows.
There are three types of gateways:
Exclusive Gateway(XOR) is a point in the process where only one of the outgoing transitions of the process can be selected. Each outgoing connector specifies the condition under which the process follows it. If the conditions are met for several paths, only the first one is activated. The conditions are checked according to the gateway settings on the Condition Check Order tab. Every XOR gateway needs a default path. It is required for a successful check of the process model.
OR Gateway activates all the outgoing transitions for which the conditions are satisfied. In the OR Gateway settings, make sure that in any case at least one of the outgoing transitions is selected, because the model check operation does not check these transitions. All the outgoing flows of an OR Gateway must end up in another OR Gateway. The opening gateway can have only one incoming transition, and the closing gateway can have only one outgoing transition.
Parallel Gateway (AND) activates all the outgoing transitions. Use this gateway to create parallel flows. All the flows going out of a parallel gateway must go to a similar parallel gateway. In a parallel gateway, you cannot create conditions for outgoing transitions. This gateway can only have one incoming transition. The opening AND Gateway can have only one incoming transition, and the closing gateway can have only one outgoing transition.
