@startuml title StockManagerシーケンス図(PUSH) hide footbox participant "handling:Handling" as handling participant "shipping:Shipping" as shipping [-> handling : update...(...) activate handling handling -> shipping : updateHandling(itemHandling : ItemHandling) activate shipping shipping --> handling deactivate shipping handling -->[ deactivate handling shipping <-] : getValue() activate shipping shipping -->] : Item deactivate shipping @enduml