Zvirongwa zvechigadzirwa zvinosanganisira iyo yakazara dhizaini yekudhirowa, sub-assembly mifananidzo, uye akasiyana ega ega chikamu madhayagiramu. Mapepa ehunyanzvi anoperekedza anosanganisira zvakatemwa, mirayiridzo yekushandisa uye kugadzirisa, pamwe nemirayiridzo ine chekuita negungano.
Technicians vane basa rekuongorora chimiro chegungano rechigadzirwa uye magadzirirwo acho, kubva pamifananidzo iyi. Ivo vanofanirwa kumisikidza miyero yekugamuchirwa kubva pamagwaro ehunyanzvi. Kana zvichidiwa, ivo vanofanirwa kuita ongororo uye computations zvine chekuita negungano dimension cheni (nokuda kwekunzwisisa kwemaketani ekuyera, ona GB/T847-2004 “Nzira dzeKuverengera Dimension Chains” nemamwe mabhuku akakodzera).