Birta caaryada birta ayaa ka mid ah waxyaabaha muhiimka u ah wax soo saarka caaryada. Marka la eego kor u qaadista warshadaha caaryada, warshadaha birta caaryada adduunka ayaa si dhakhso leh u kobcaya, laakiin tayada birta caaryada Shiinaha ayaan la kulmi karin shuruudaha birta, sidaa darteed warshadaha birta caaryada ee Shiinaha waa inay hagaajiyaan tayada wax soo saarkooda. Marka loo eego falanqaynta dadka ku habboon, siyaabahan soo socda ayaa si wax ku ool ah u horumarin doona tayada birta caaryada:

Ugu horreyntii, waa inaan kordhinnaa maalgelinta cilmi-baarista birta cusub iyo maalgalinta horumarinta, soo saarno dufcad bir ah oo cusub oo la jaanqaadaysa heerarka caalamiga ah, isla markaana dhiirrigeliya wax soo saarka; Midda labaad waa in la sameeyo nidaam xulasho caaryo mideysan iyo silsilad bir ah oo taxane dhammaystiran leh; Seddexaad, hagaajinta tayada biraha, kordhinta noocyada kala duwan ee alaabooyinka, alaabada xun, tayada; Afaraad, xooji codsiga farsamada daaweynta dusha sare ee biraha.

Iyada oo loo marayo siyaabahan wax ku oolka ah, waxaa la rumeysan yahay in tayada birta caaryada ee Shiinaha ay noqon doonto mid aad iyo aad u sarreysa, si tartiib tartiib ah ula socota heerka sare ee caalamiga ah, sidaa darteed birta caaryada ee Shiinaha ma la kulmi karto oo keliya warshadaha caaryada ee gudaha dalabka birta, laakiin sidoo kale dibedda loo dhoofiyo, suuqa dibedda si loo furo suuq ballaaran.