Contractor selection in construction industry: A multicriteria model

Abstract

Contractor selection is a strategic question for the construction industry since the suppliers have an important role in projects performance. Two essential issues in this process are the choice of adequate criteria and methods of supplier's evaluation. Therefore, this paper applies a model for contractor selection in the construction industry. Normally, this selection is considering a group decision problem, since various departments are influenced for this choice and its managers participate of the process. Moreover, this paper focuses on the situation in which the company wants to select a set of contractors, maximizing the use of resources according with the constraints imposed. In this context, the model utilized considers the interaction between a Group Decision and an Integer Programming methods. Afterward, it was made a numerical application of the model. The criteria used in this simulation were identified from a literature review in papers related to the supplier's selection in the construction industry.