The knowledge of dominant project characteristics provides a means to better deploy valuable resources on relevant areas so as to achieve a successful project. The search for the relative dominance of these characteristics has witnessed grand transformations from being purely theoretical to a more sensible numeric form. The book sets out to develop reader interest in the use of statistical procedures and the analytical hierarchy process for the quantification of engineering judgment with regard to project critical success factors. Later, the book discusses three such state of the art works that best explains the progress in search of construction project critical success factors over a period of the foregoing 25 years. Finally, the book discusses the original research of the authors aimed at an analytical extraction of construction project critical success factors for consultants, contractors, and project management organizations. Spearman's test on overall rankings of 40 significant factors results in a highest level of correlation between the managers and contractor personnel (rs=0.54), and a least correlation between the contractor personnel and the consultants (rs=0.19).