Grey relational grade decision model for selection of project delivery system

A construction project is oftern facing various uncertainty environments, and the product of construction is very complexity. Selecting a project delivery system is a critical task, which determines the project schedule, quality and investment objectives. This study proposes a decision- making model for the selection of project delivery system which is based on information entropy and grey relational grade analysis. In order to overcome the subjective evaluations from the experts, the theory of ‘entropy weight’ is applied to modify the experts' subjective weight. The multi-attribute grey relational grade decision-making is used to deal with the uncertainty information for selection of project delivery system. The application of the model in a real-world problem is provided. The methodology provides an effective way for the owners to select an appropriate delivery system for their project in the uncertainty condition.

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