Pambuyo pa kafukufuku wamsika, zidapezeka kuti poyerekeza ndi zinthu zofananira, makina opangira njerwa amadzimadzi amakhala ndi chiwopsezo chachikulu chogwiritsa ntchito. Izi makamaka chifukwa chakuti zipangizo zake zopangira zili ndi makhalidwe angapo akuluakulu, omwe amatha kukwaniritsa zosowa za ogula. Chofunikira kwambiri ndikukwaniritsa zosowa za ogula kuti apititse patsogolo ntchito zopanga ndikuwonjezera mwayi wopeza phindu. Pofuna kuti ogula ambiri adziwe za makinawa omwe ali ndi mtengo wapamwamba wopanga ndi malonda, komanso kulimbikitsa mtundu wa makina ndi zipangizo, kuti anthu ambiri azigwiritsa ntchito, tidzafotokozera makhalidwe a makinawa ndi zipangizo.

Mbali yoyamba ya makina a njerwa opanda phokoso palibe phokoso. Chifukwa makinawa ndi zida zimagwiritsa ntchito njira yodzipangira okha, gawo lililonse limalumikizidwa ndi mnzake ndikulimbikitsana kuti amalize ntchito yonse. Ndipo pamapangidwe a mankhwalawa, wopanga wake, poganizira malo ake ogwira ntchito, amaika mwadala kulimba pakati pa chigawo chilichonse mwangwiro kwambiri. Pamene zipangizo zikuyenda, sipadzakhala kukangana kwakukulu, kotero sipadzakhala phokoso lalikulu. Kachiwiri, zimapanga malo abwino kwambiri ogwirira ntchito.

Khalidwe lachiwiri la makina opangira njerwa odzipangira okha ndikuti amafunikira anthu ochepa ndipo safuna munthu wapadera kuti apereke zida. Ndi chifukwa chakuti mapangidwe a makinawa ndi zipangizo zake ndi zabwino kwambiri, ndipo ntchito yake yogwira ntchito ndi yochuluka kwambiri, choncho kugwiritsa ntchito ntchito kumakhala kochepa kwambiri, makina amangofunika antchito ochepa kuti amalize ntchito zonse zopangira, kotero kuti wopanga akhoza kusunga ndalama zambiri zopangira ndi malipiro. Komanso, makina sayenera kumalizidwa pamanja pa zopangira zotumizidwa ndi iye. M'malo mwake, njira yopangira imayang'aniridwa ndi makompyuta, kotero kuti zopangidwazo sizikhala ndi vuto la kupanga kwamanja.