Umutekano wo mu modoka inyundo, nanone yitwa inyundo-yimikorere myinshi. Yerekeza ku gikoresho kiri mu modoka, mugihe habaye ikibazo cyihutirwa cyangwa ibiza, bikoreshwa mu kumenagura ibikoresho byikirahure cyimodoka. Hano hari ibirango byinshi byumutekano wibinyabiziga bifite imikorere nuburyo butandukanye. Imiterere yinyundo ifite plastike, ibiti, ibyuma, nibindi, umutwe winyundo ni umutwe wicyuma.
Iyi ni inyundo yumutekano wihutirwa, irashobora gukoreshwa mukicara cya bisi iruhande rwigishushanyo mbonera cyiza mugihe impanuka ishobora kuba imbaraga ntarengwa yikirahure cyacitse, ntibitezimbere gusa coefficente yumutekano wimodoka, ahubwo nabakunda imodoka ya ibikoresho by'umutekano! Imodoka yigenga nayo irakurikizwa!