VertexWeightCalculator Node1 VertexWeightCalculator - m_ScoreKey + VertexWeightCalculator() + ~VertexWeightCalculator() + initialize() + estimateSignalCompatibility() Node2 AthAlgTool   + AthAlgTool() + ~AthAlgTool() - AthAlgTool() - AthAlgTool() - operator=() Node2->Node1 Node3 AthCommonDataStore < AthCommonMsg< AlgTool > > - m_evtStore - m_detStore - m_vhka - m_varHandleArraysDeclared + AthCommonDataStore() + evtStore() + detStore() + sysInitialize() + sysStart() + inputHandles() + outputHandles() + declareProperty() + updateVHKA() # renounceArray() # renounce() # extraDeps_update_handler() - declareGaudiProperty() Node3->Node2 Node4 AthCommonMsg< AlgTool >   + msg() + msgLvl() Node4->Node3 Node5 AlgTool     Node5->Node4 Node6 Trk::IVertexWeightCalculator   + ~IVertexWeightCalculator() + estimateSignalCompatibility() + interfaceID() Node6->Node1 Node7 IAlgTool     Node7->Node6