G4AtlasActionInitialization Node1 G4AtlasActionInitialization + G4AtlasActionInitialization() + ~G4AtlasActionInitialization() + BuildForMaster() + Build() Node2 G4VUserActionInitialization Node2->Node1 Node3 G4UA::IUserActionSvc + initializeActions() + getSecondaryActions() + addActionTool() + DeclareInterfaceID() Node3->Node1 -m_userActionSvc Node4 IService Node4->Node3