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User's Guide
Designing a process template diagram : Connecting worksteps : Using multiple links : Using multiple incoming/outgoing links with gateways
 
Using multiple incoming/outgoing links with gateways
Gateways are diamond-shaped objects in a BPMN process diagram that represent a change in the workflow—it may indicate the joining, merging, splitting, or deciding of the flow’s direction. In Business Process Modeler, gateways include Decision (including Exclusive Decisions), XOR Join, OR Join, and AND Gateway. Decisions () have a single incoming link and multiple outgoing links. Or Join () and XOR Join () gateways have multiple incoming links and a single outgoing link. When an AND Gateway () has multiple incoming links, it must have a single outgoing link—in this case, the AND Gateway acts as an And Join. When an AND Gateway has a single incoming link, it can have multiple outgoing links—in this case, the AND Gateway acts as an And Fork (or Split). These variations in incoming/outgoing links for gateways are illustrated in the following figure.
Figure 2. Examples of Gateway Links
If you want to start multiple, parallel worksteps after an Or Join or XOR Join gateway, then you must insert an AND Gateway immediately after the Or Join or XOR Join gateway.