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