Most construction projects have been recognized as underperformance due to the increase numbers of delays, cost overruns and poor quality construction. The inability of contractors to meet clients’ expectation has been found as one of the main causes that contribute to the project failure. Alternatively, key players are encouraged to shift from the conventional method towards Industrialized Building System (IBS). Also known as prefabrication, previous researchers proved that IBS is able to minimize on-site works and increase the building quality in a controlled environment. However, the take up rate of IBS in Malaysian construction industry is still low as compared to developed countries basically due to incapability of contractors in mastering an advanced technology and their negative perceptions in IBS implementation. In addition, a limited subjective performance measurement, particularly to evaluate contractors' satisfaction level in implementing the IBS construction is still neglected. This is a review paper for an on-going research in examining contractor satisfaction levels on the IBS implementation and its attributes. The measurements are based on contractor perception instead of the typical approaches that solely concerned with objective measures (time, cost and quality). As a result, several attributes that integrate sustainability elements (economical, environmental, social, and institutional factors) are also determined. These attributes are then developed through systematic analysis to enhance the ability of IBS in improving contractors’ satisfaction. The developed framework is expected to help the project team in performing IBS projects more efficiently, ensuring the quality meet the standards and encouraging effective communication between participants. Moreover, the findings will be useful to assist contractors in enhancing competitiveness, increase company reputation and improve project deliveries to meet global challenges.

Keywords: satisfaction, contractor, measurement, Industrialized Building System (IBS)