I want to create two concurrent flows in an activity diagram, but these two flows do not need to be synchronized. The scenario can be something like this, a go routine (let's call it MAIN) starts a new go routine to do a separate service, and then the MAIN go routine continues, no synchronization between them at all. how to do that? AFAIK, according to UML activity specification, a join node do synchronization intrinsically, while a merge node is related to several alternative flows before. There seems to be no proper design for the above scenario, neither does plantUML. Thanks!
