Mu kwerekana igikorwa c'umurwi mu ry'ungane, hakoreshwa ivyerekana igikorwa.
- izina ndondozi
- Ibikorwa bimwe, nka rukozi, vyerekanwa nuko bidafise ikiranga igikorwa. Icemeza co kutagira igikorwa kikiranga citwa ugutazira.
- Rwagiriza
- Igikorwa kintu hamwe n'ibindi bikorwa vyerekanwa na - Nihereza. Bayita iyagiriza ihereza canke iyagiriza.
- Indongorazina
- Ibindi bikorwa vyinshi vyerekanwa n'uduce dutandukanye twibonekeza, bita indongorazina.