What is the optimal way to comunicatte 2 processes in orchestrator?


I’m developing a project that multiple processes will be used to complete an task.

Among these projects, I was thinking about communicating two of them.
For example, when the process X met some condition, process X+1 should start.

It is important to notice that both process should exist, i can’t use get some files of X+1 and try to InvokeWorkflow Activity in X.