Cst rdctn s th prcss sd by rgnstns mng t rdc thr csts nd ncrs thr prfts, r t ccmmdt rdcd ncm. Dpndng n cmpny’s srvcs r prdcts, th strtgs cn vry. vry dcsn n th prdct dvlpmnt prcss ffcts cst: dsgn s typclly cnsdrd t ccnt fr 70–80% f th fnl cst f prjct sch s n ngnrng prjct r th cnstrctn f bldng. n th pblc sctr, cst rdctn prgrms cn b sd whr ncm s rdcd r t rdc dbt lvls.