Ho na le mefuta e 'meli ea foreimi ea mochini: mohlala o cheselitsoeng le mohlala o kopaneng.Ea pele ke ea boholo bo bonyenyane le bo bohareng, 'me ea morao ke ea boholo bo boholo.Mofuta o cheselitsoeng o sebelisa mokhoa o moholo oa arc fillet le mokhoa o tlase oa ho cheselletsa khatello ea maikutlo, o fokotsa haholo khatello ea maikutlo e netefatsang hore rack e na le matla a lekanang ka nqa tsohle, ho hanyetsa tšusumetso e matla, esita le matla, sekhahla se tlase sa ho hloleha.E kopane e sebelisa modularization e tsoetseng pele le moralo oa sebopeho sa foreimi e sa chesehang ea matla a phahameng a mokhathala le ts'epahalo e phahameng.Ho sa le joalo moralo oa kopano ea mochini o etsa hore lipalangoang, le ho kenya li be bonolo haholoanyane, haholo-holo tse loketseng ho kenngoa libakeng tse moqotetsane le tse nyane joalo ka meepo ea undermine le bophahamo bo phahameng.