Is there a way to draw interaction overview diagram in PlantUML?

+1 vote
asked Jul 19, 2019 in Question / help by anonymous
This requires combining activity with sequence diagram. I tried several different ways but it gives syntax error. One example below, in which it points error in line 3 at 'Participant':




Participant alpha

Participant beta

Mainframe sd

alpha --> beta : message

alpha <.. beta : response


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