Lo mshini wokusika isikhwama esinomumo wesikhwama uyithuluzi elisizayo elimelene nesikhwama esimise okwehlukene njengesikhwama sokuvala esinezinhlangothi ezintathu esimise okomuntu ozimele, okuthuthukisa kakhulu ukusebenza kahle kokukhiqiza, izindleko eziphansi zokukhiqiza kanye nokusingatha ngokoqobo inkinga eqinile esicini sokubhoboza sesikhwama esibunjiwe.Noma yikuphi ukuphawula, sicela ukhululeke ukuxhumana.