The parallel gateway (Parallel Gateway) in Camunda is used to execute multiple tasks in parallel, and these tasks can be independent or interdependent.
In a workflow, multiple tasks usually need to be performed, and these tasks may be performed in parallel or serially. Using parallel gateways, a process can be split into multiple branches, each of which can perform their tasks independently. When the tasks of all branches are completed, the process can continue to the next step.
A parallel gateway can improve workflow execution efficiency because it can execute multiple tasks at the same time. In addition, using a parallel gateway simplifies the design and maintenance of workflows because it divides the process into smaller parts, each of which can be designed and tested independently.
It should be noted that when using parallel gateways, it must be ensured that the tasks of each branch can be executed independently without any dependencies between them. If there are dependencies between tasks, a Sequence Flow should be used to ensure that they are executed in the correct order.