Ikhiphedi yesilawuli kude iyisisetshenziswa esiphathwa ngesandla esidizayinelwe ukusebenzisa ngokungenantambo amadivayisi kagesi afana nomabonakude, amasistimu omsindo, amakhonsoli amageyimu, namasistimu ezishintshayo asekhaya.Isebenza njengesixhumi esibonakalayo sokuxhumana phakathi komsebenzisi nedivayisi, okuvumela ukulawula okulula ngaphandle kwesidingo sokusebenzelana ngokomzimba namathuluzi.