Qeexida qaamuuska "xeerka sharciga" waxa loola jeedaa ururinta nidaamsan ee sharci ama xeerar maamula awood gaar ah ama aag sharci. Xeerka sharcigu waxa uu noqon karaa xeerar, xeerar, xeerar, ama xeerar kale oo sharci oo ay si rasmi ah u dejiyeen dawlad ama hay'ad kale oo awood leh. Xeerarka sharciga ayaa inta badan loo habeeyaa qaybo gaar ah, sida sharciga dembiyada, sharciga madaniga ah, ama sharciga ganacsiga, waxaana ku jiri kara qodobbo la xidhiidha mawduucyo ay ka mid yihiin hantida, qandaraasyada, ciqaabta, iyo arrimaha kale ee sharciga ah. Ujeeddada xeer-nidaamiyaha sharcigu waa in la helo hab-raac cad oo dhammaystiran oo loogu talagalay shakhsiyaadka iyo hay'adaha inay ku dhaqmaan, iyo in la dejiyo qaab-dhismeedka maamulka caddaaladda ee xukun gaar ah.