1, Iramba kandi irambye
Irwanya kugorama no kwangirika; ibice bishobora kongera gukoreshwa bigabanya imyanda y'ibikoresho.
2, Imikorere ikomeye y'umutwaro
Ikora ku gitutu kinini cya sima nshya, ikwiriye igishushanyo mbonera cy'inkingi zikomeye.
3, Gukoresha neza aho hantu
Igishushanyo mbonera cya Modular kigabanya igihe cyo guteranya ugereranije n'igihe cyo gutunganya imiterere gakondo; byoroshye gufata no guhindura.
4, Irangi ryiza kandi ryizewe
Ibyuma bifunze neza bitanga ubuso bworoshye kandi budafite inenge bwa sima, bigabanya ibisabwa nyuma yo gusigwa.