xAODMaker::ITrigVertexCountsCnvTool Node1 xAODMaker::ITrigVertexCounts CnvTool + convert() + interfaceID() Node3 xAODMaker::TrigVertexCounts CnvTool + TrigVertexCountsCnvTool() + convert() Node1->Node3 Node2 IAlgTool Node2->Node1