The syntax using the ] character is now obsolete.                                                                                                                                                                                    
          Please use the <<task>> stereotype instead.                                                                                                                                                                                          
          For more details, visit https://plantuml.com/activity-diagram-beta                                                                                                                                                                   
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                      Flowchart                                                                                                                                                
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
       System 1                                                                                                                                      System 2                                                                                  
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                          Step1                                                                                
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                          Step2                                                                                
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                          Step3                                                                                
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                Output of Step3
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                           Step 4