-High ukuxuba ukusebenza ngisho izicelo ukhonkolo eziyinselele.
-Inhlanganisela ephezulu ye-homogeneity ngesikhathi esifushane sokuxuba.
-Ukudluliselwa okushelelayo, ukusebenza kahle okuphezulu
-Ukushukumisa umfaniswano, ayikho i-Angle efile
-Ukubekwa uphawu okuhle:ayikho inkinga yokuvuza.