gaarsiinta waqtiga iyo shuruudaha lacag bixinta dabacsan.
Guarantee si ay u siiyaan dadka isticmaala ay la fiican pre-sale, iibinta iyo ka dib-iibka adeegga, pre-iibka ee dadka isticmaala inay soo bandhigto waxqabadka alaabta iyo hababka la isticmaalo, iyo in la siiyo macluumaadka la xiriira. Martiqaad iibsadaha inay ka qayb qaataan dib u eegista design farsamo ee qeybiyaha marka loo baahdo.
More badan "Saddex damaanad-qaad" muddo of sheyga, si loo hubiyo in bixinta qaybo dayactirka, iyo si waafaqsan baahida dadka isticmaala inay shaqo dayactir ku sameeyo.