Gutoranya neza byerekana neza ukuri gukomeye, kugabanya ibyago byo gutsindwa mukibazo no kuzamura sisitemu muri rusange. Imikoreshereze yikoranabuhanga ituma geometrike igoye uburyo gakondo bwo gukora bushobora guharanira kubigeraho. Mugihe inganda zikoresha ingufu z'umuyaga zikomeje kwiyongera, uruhare rw'abatwara umubumbe rugenda rugaragara cyane, bigira uruhare runini mu guhindura ingufu no gukomeza kuramba mu kongera ingufu z’amashanyarazi.
Twari dufite ibikoresho byo kugenzura bigezweho nka Brown & Sharpe imashini yo gupima imirongo itatu, Colin Begg P100 / P65 / P26, ikigo cy’ibipimo cyo gupima Ubudage bwa Marl, ibikoresho byo mu Buyapani bipima ibizamini, Optical Profiler, umushinga, imashini ipima uburebure n'ibindi kugirango tumenye neza ko finale ubugenzuzi neza kandi bwuzuye.