As an event on a node it prevents progressing the process / finishing a task if a process, which was started via Softlink, is not finished yet.
As a decision handler on a XOR gateway it can determine if a Softlink process is finished or not. For that on way has to caontain the name running, this is the way that will be gone, if the process if not finished. The other way gets the name finished, thi is the way, which will be gone, if the softlink process is finished.