In the sequence diagram (DG page 45) in the screenshot above, the activation bars of RiskProfileCommandParser , RiskProfileCommand and Model all persist to the same point until the the updated model is returned and responsibility is handed back to the Logic Manager. However, by UML conventions, I believe that your cannot have the return of responsibility or return value for different objects to be all represented in the same back arrow.
In the sequence diagram (DG page 45) in the screenshot above, the activation bars of
RiskProfileCommandParser
,RiskProfileCommand
andModel
all persist to the same point until the the updated model is returned and responsibility is handed back to the Logic Manager. However, by UML conventions, I believe that your cannot have the return of responsibility or return value for different objects to be all represented in the same back arrow.