ITrigDkfTrackMakerTool Node1 ITrigDkfTrackMakerTool + createDkfTrack() + interfaceID() Node3 TrigDkfTrackMakerTool - m_idHelper + TrigDkfTrackMakerTool() + initialize() + createDkfTrack() Node1->Node3 Node2 IAlgTool Node2->Node1