Siza kubonelela ngezisombululo zendlela epheleleyo ye-calicnide (i-rbsic / i-SISIC) egxininisa "ixabiso elongeziweyo", kuxhomekeke kuyilo olubanzi kunye nenkxaso yobugcisa. Siza kuqinisekisa ukuqondwa okuyimpumelelo kweemfuno zabathengi ukuze kunikeze elona cebiso lisebenzayo nelifanelekileyo kunye neemveliso. Siza kubonelela ngokuhanjiswa kwexesha ngexesha elifutshane ngelixa kwamkela iindlela zolawulo lwe-lean ukuze zinciphise amaxesha akhokelayo kule nkqubo.