Xa ukhetha iibheringi zebhola, qala ngokumisela uhlobo olufanelekileyo lokuthwala olusekwe kwiimeko zomthwalo, isantya somthamo, iimfuno zengxolo, kunye nemilinganiselo yokufakela. Ukongeza, qwalasela ubushushu kunye nemiqobo yokusingqongileyo ukukhetha izinto ezifanelekileyo zokuthwala kunye neendlela zokuthambisa. Emva koko, yenza ubalo lobomi kwimodeli ekhethiweyo yokuthwala ngaphakathi kwemilinganiselo yendawo yoyilo evumelekileyo kwaye uqhubeke nenkqubo yoyilo.
Inkqubo yokuKhetha ibhola
Ubomi benkonzo yeebheringi zebhola bungavavanywa ngokuyinhloko ngeendlela ezimbini:
Xa ukungaphumeleli kokukhathala kuyeyona ndlela ibalaseleyo yokungaphumeleli, ubomi bokudinwa kokuthwala kufuneka buqinisekiswe.
Xa ukuthwala kuxhomekeke kwimithwalo ye-static egqithisileyo okanye imithwalo yempembelelo kwisantya esiphantsi kakhulu, ubomi bayo abulawulwa kukudinwa kwezinto; kwiimeko ezinjalo, amandla angashukumiyo kufuneka avavanywe endaweni yoko. Enye into ekufuneka iqwalaselwe kukuba ingaba umthwalo osetyenzisiweyo ekuthwaleni ibhola ungaphantsi kobuncinane bomthwalo ovumelekileyo.