1. Amasandugu yo Gukwiragiza Hanze
Amasandugu yo gukwiragiza hanze yagenewe gukoreshwa hanze kandi afise ubushobozi bwo gukingira amazi, ubukonje-, izuba-, n’ugusenyuka-. Mu bisanzwe bishirwa ku mpome canke ku nkingi kugira ngo bikingire ibihimba vy’umuyagankuba ibintu n’ibintu bishobora gutera.
2. Amasandugu yo gutanga ibifungurwa yo mu nzu
Amasandugu yo gutanga ibitabu yo mu nzu akoreshwa mu nzu kandi akenshi ashirwa ku mpome canke hasi. Biraryoshe, biraryoshe kandi birakomeye, bikaba bitanga amashanyarazi atekanye kandi yizigirwa mu ngo no mu bikorwa vy’ubudandaji.
3. Amasandugu yo gukwiragiza ashobora guturika-
Amasandugu yo gukwiragiza ashobora guturika-yagenewe gukoreshwa mu bidukikije bishobora kwaka n'ibiturika. Bitanga ubushobozi bwiza cane bwo gukingira ibisasu-, bikabuza guturika bitewe n’ibishashi. Amasandugu yo gutanga amakuru adashobora guturika-akoreshwa cane mu nganda.