To make this discussion more objective and concrete, I will be applying a well-known theory proposed by renowned psychologist Abraham Maslow in 1943 – Maslow’s Hierarchy of Needs.
The static weight of each index has been calculated by Analytic Hierarchy Process with Group Decision Making, considering subjective weight and objective weight of experts at the same time.
Grey statistics method is more objective and reliable comparing with fuzzy hierarchy estimation, thus it is an ideal method for optimization of project schemes.