- ERGONOMIC DESIGN - Urufunguzo rwibanze rutanga ihumure ntarengwa, gushimangira kudoda byongeweho, no kunoza ubuhanga
- URUPAPURO RW'IMIKORESHEREZO - Intoki z'uruhu rw'intama zikwiranye neza nakazi keza cyane nko gusakara, kubungabunga, kurasa, gutwara, guhinga, gukoresha ingufu / gukoresha ibikoresho byamaboko, gukoresha ibikoresho, nibindi byinshi!
- IHURIRO: Igishushanyo mbonera cy'urufunguzo rwongeramo ubwitonzi no guhinduka, mugihe ahantu haciwe hashyirwa kumurongo usanzwe wamaboko, byongera ihumure muri rusange