(in lingua inglese)
A methodology based on GTA is proposed to evaluate the role of design parameters in calculating the efficiency of CGCPP. For this purpose, CGCPP has been divided into four systems as the CGCPP is a very large system. Design parameters affecting system efficiency are identified. The methodology presented in this paper builds a flexible and comprehensive model, which has the capability to consider the inheritance and interdependencies between various systems and design parameters affecting efficiency of CGCPP.