1. He mea maʻalahi ka hoʻolālā o loko, maʻalahi e hana, maʻalahi e hoʻouka a hoʻohana.
2. Hiki ke hoʻomaluʻia nā mea uila likeʻole ma o ka hoʻonohonohoʻana i nāʻano hoʻomaka likeʻole, e like me ke kaomi pōkole, lōʻihi lōʻihi, etc.
3. He maikaʻi ka hana, hāʻawi i ke kanaka me ke ʻano kiʻekiʻe a me ka manaʻo kiʻekiʻe.
Nā lako uila: e like me ka lolouila, ka nānā ʻana, ka keyboard, ka ʻiole, ka scanner, ka paʻi, a pēlā aku.
Nā lako kamaʻilio: e like me nā kelepona paʻa, kelepona, nā mea ala, nā hoʻololi, etc.
ʻO nā uila uila: e like me ka hoʻokele kaʻa, leo, ea ea, etc.
Nā mea lapaʻau: e like me ka sphygmomanometer uila, electrocardiograph, ventilator, etc.