Trk::ITrackSummaryHelperTool Node1 Trk::ITrackSummaryHelperTool + analyse() + analyse() + searchForHoles() + addDetailedTrackSummary() + interfaceID() Node3 Trk::IExtendedTrackSummary HelperTool + analyse() + analyse() + addDetailedTrackSummary() + analyse() + analyse() + addDetailedTrackSummary() + addDetailedTrackSummary() + analyse() + analyse() + interfaceID() Node1->Node3 Node2 IAlgTool Node2->Node1