“…In another similar research, the same researchers developed a model for design and construction contracts through application of regression (Lam et al, 2008). In another research, Cheung et al (2008) On the other hand, several methods have been used for anticipation as follows, Time series (Hwang, 2011;Wong et al, 2007) Various regression methods (Cheung et al, 2010;Hwang, 2008;Wang & Gibson, 2010) Neural networks (Cheung et al, 2006;Chua et al 1997;Ko & Cheng, 2007;Wang & Gibson, 2010) Fuzzy logics (Ko & Cheng, 2007;Li et al, 2006;Young & Poon, 2013) In previous researches, most researchers and authors have recommended future researchers to provide their anticipator models with respect to things like localization in other countries, application of more precise and simple methods and a model for different phases of a project (Bygballe et al, 2010;Chang et al, 2013;davis, 2013;Eigbe et al, 2014;Han et al, 2007;Han et al , 2007;Petro & Gardiner, 2015).…”