Construction projects are of very complex nature. and subject to circumstances of high uncertainties and risks due to the interdependences of activities and processes in the project performance. As a result of the dynamic complexities inherited in construction projects. changes in the scope of work are inevitable. https://www.roneverhart.com/Western-Digital-Ultrastar-DC-HC550-WUH721816ALE6L0-0F38460-16TB-7-2K-RPM-SATA-6Gb-s-512e-ISE-3-5in-Hard-Drive/