Imodeli ilingisa isakhiwo somzimba esingaphezulu sowesilisa omdala futhi ingenza imisebenzi ehlukahlukene eyisisekelo yokunakekela, okuhlanganisa ukuphathwa komoya wokuphefumula kanye namasu okuncelisa esiswini ngokusebenzisa umgodi wamakhala nowomlomo.