1. Khetha ngendlela edluliswayo:Imidiya ehlukene idinga amaphampu epayipi enziwe ngezinto ezihlukene ukuze kuqinisekiswe ukumelana nokugqwala nokuvumelana nezimo.
2. Khetha ngokudlulisa ibanga nobude:Lawa mabanga nobude buthinta ikhanda lephampu nezidingo zamandla.
3. Khetha ngokwezinga lokugeleza nokucindezela:Khetha izinga lokugeleza elifanele kanye nebanga lokucindezela ngokusekelwe ezidingweni zangempela.
4. Khetha ngamandla emoto:Amandla emoto anquma amandla ephampu kanye nokusetshenziswa kwamandla.