The parallel review requirement occurs in multiple departments at the same time. At this time, there will be multiple parallel branch instances [employee filling in the form -> team leader approval]. Each branch sequence is executed independently until all parallel branch sequences are completed before the convergence condition is met. Then the process continues to execute the process downward through the convergence gateway.

Example data for parallel review:

A : Employee fills out form --> Team leader approves

Department B: Employee fills out form --> Team leader approves

Department C: Employee fills out form --> Team leader approves

...

In the Split gateway stage, according to the role data defined on the employee form filling node, the personnel list is obtained, and then parallel branch data is dynamically generated. That is, multiple employee form filling instance data is generated at the same time, thereby realizing the multi-instance mode. The number of branches is the number of personnel selected on the employee form filling node.