Mapulani azinthu amakhala ndi chithunzi chonse cha msonkhano, zojambula zazing'ono, ndi zithunzi zamitundu yosiyanasiyana. Zolemba zotsagana ndi zaukadaulo zimaphatikizanso zofunikira, malangizo ogwiritsira ntchito ndi kukonza, komanso malangizo okhudzana ndi msonkhano.
Amisiri ali ndi udindo wowunika kapangidwe kazinthuzo komanso kapangidwe kake, zochokera ku zojambula izi. Ayenera kukhazikitsa miyeso yayikulu yovomerezeka potengera zolemba zaukadaulo. Pakafunika, Ayenera kusanthula ndi kuwerengera zokhudzana ndi unyolo wa gawo la msonkhano (kuti mumvetse unyolo wa dimension, onani GB/T847-2004 “Njira Zowerengera za Dimension Chain” ndi mabuku ena ofunikira).