BPMN Gateway is a kind of flow objects which is used to direct sequence flows within a process, based on certain condition(s). It acts like a gate that either allows or disallows passage, and possibly control the selection of outgoing flow that pass through the gateway.
|A typical use of gateway - for modeling a situation of decision making
In business process modeling with BPMN, there are several kinds of gateway for different kinds of control behavior, such as making decision, branching, merging, forking and joining.
|Different types of gateway|
Showing internal indicator "X" for exclusive gateway
You can optionally show the letter "X" inside the shape of exclusive gateway to distinguish it from other gateways (see the table above). To do this, right click on the background of business process diagram and select Presentation Options, then select Gateway Display Options > Data-Based gateway Markers Visible from the popup menu.
The following resources may help you to learn more about the topic discussed in this page.
|4. Event||Table of Contents||6. Sequence and message flows|