Multi-hierarchical grey evaluation on the construction enterprises' informatization level based on combinational weight

The paper puts forward the index of informatization evaluation in the construction enterprises on the basis of The scheme of enterprise' informatization basic index issued by National Informatization Evaluation Center.The method of multi-hierarchy grey comprehensive evaluation(MGCE) is used to evaluate the index.In the evaluation model the paper adopts AHP and the entropy method to determine the index weight,considering the virtue of the subjective weight and the objective one.It can improve the accuracy of the evaluation.It is proved the method which is based on MGCE is simple and workable.It can be used as an effective tool in evaluating the level of construction enterprises' informatization and defining the model of the informatization enterprise.