Proposing a General Formula for Evaluating the Parametric Cost Using MLR Method

This research takes up address the practical side by taking case studies for construction projects that include various Iraqi governorates, as it includes conducting a field survey to identify impact of parametric costs on and compare them with what was reached during analysis extent their validity accuracy, well adopting approach personal interviews know reality state projects. The results showed, after comparing data its measurement in sectors (public private), correlation between expected actual cost change (97.8%), this means can be adopted study integration predictive model future study. Changes substantially time, cost, quality are major barrier execution, necessitating research, analysis, development most effective solutions. aims accurately through iterative tests continuous improvements presenting literature describing history characteristics methodologies identifying each methodology's limitations, strengths, weaknesses promote better understanding best practices use managing project