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...Exploring accuracy factors in cost estimating practice towards implementing building information modelling bim noor akmal adillah ismail erezi utiome robert owen and robin drogemuller abstract has been acknowledged as a crucial component of construction projects depending on available project requirements estimates evolve tandem with lifecycle stages conceptualisation design development execution facility management the premium placed is to producing tenders eventually budget notwithstanding initial slow pace its adoption successfully addressed number challenges previously characteristic traditional approaches aec including poor communication prevalence islands frequent reworks therefore it conceivable that can be leveraged address specific shortcomings estimation impetus for leveraging models accurate align budgeted actual this paper hypothesises based more efficient process mirrors methods enhanced by simulating variables through literature reviews preliminary expert interviews explo...