xAODMaker::ITrigEMClusterCnvTool Node1 xAODMaker::ITrigEMCluster CnvTool + convert() + interfaceID() Node3 xAODMaker::TrigEMCluster CnvTool + TrigEMClusterCnvTool() + convert() Node1->Node3 Node2 IAlgTool Node2->Node1