Evaluating the Impacts of Building Information Modeling on Construction Change Orders in Iraq

Date of Award


Degree Name

Master of Science


Civil and Construction Engineering

First Advisor

Dr. Hexu Liu

Second Advisor

Dr. Osama Abudayyeh

Third Advisor

Dr. Siddharth Bhandari


Construction industry, building information mod, design phase, change orders, errors and omissions in the design

Access Setting

Masters Thesis-Abstract Only

Restricted to Campus until



In most construction projects, design changes lead to increased cost, low productivity, and delays in achieving the designs. These design changes are usually because of scope changes, or design errors and omissions (E&Os) found within the construction documents. E&Os are generally the result of incorrect or inconsistent dimensions, mostly attributed to poor planning, coordination, and communication between project parties. This research aims to discover building information modeling (BIM) on the change order management and prevention. This research was conducted by studying two measurable key performance indicators (requests for design information and estimating construction costs result of the change orders). These indicators were applied to a building taken as a case study to discover how BIM affects change orders and to determine the extent to which the use of BIM systems can reduce total change orders to minimize or eliminate E&Os. The researcher found a decrease in change orders for the project when applying BIM systems due to reduced errors, omissions, and lack of information during the design phase. The abilities to prefabricate and change site processes are also significant advantages of BIM usage practiced by trade contractors. The design of the Al Waqif Mosque was selected as a case study for this research.

Al Waqif Mosque was selected because it is a complex project in both the soil’s nature and the project’s location, being lower than the public street level. The project was also

problematic because it encountered a series of revisions during design and without interrelationships between activities. These complications led to a delay in the delivery of the project. This project has not been completed yet because of the many financial problems caused by the change orders. The research included evaluating the extent of using BIM in the design and implementation phases by circulating a questionnaire targeted at the design and construction companies inside and outside the United States. The survey results showed that the BIM system, despite the novelty of its use, was between useful and not readily available. Also, there are many barriers to using BIM systems in recent times, such as lack of training and experience; it has been observed that soon there will be there extensive use of BIM systems.

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