G4UA::UserActionSvc Node1 G4UA::UserActionSvc - m_userActionTools - m_runActions - m_eventActions - m_stackingActions - m_trackingActions - m_steppingActions + UserActionSvc() + initialize() + initializeActions() + getSecondaryActions() + addActionTool() * m_userActionTools * m_runActions * m_eventActions * m_stackingActions * m_trackingActions * m_steppingActions Node2 extends< AthService, IUserActionSvc > Node2->Node1