ITGCcablingServerSvc Node1 ITGCcablingServerSvc + giveCabling() + isAtlas() + interfaceID() Node3 Muon::TGCCablingServerSvc - m_atlas + TGCCablingServerSvc() + ~TGCCablingServerSvc() + queryInterface() + giveCabling() + isAtlas() Node1->Node3 Node2 IInterface Node2->Node1