xAODMaker::ICMMEtSumsCnvTool Node1 xAODMaker::ICMMEtSumsCnvTool + convert() + interfaceID() Node3 xAODMaker::CMMEtSumsCnvTool + CMMEtSumsCnvTool() + convert() Node1->Node3 Node2 IAlgTool Node2->Node1