The Analytic Hierarchy Process(AHP) Founded by Saaty in 1980. It is a popular and widely used method for multi-criteria decision making. Allows the use of qualitative,as well as quantitative criteria in evaluation. Wide range of applications in systems engineering CLGO+ - The Analytic Hierarchy Process (AHP) Founded by Saaty in 1980. It is a popular and widely used method for multi-criteria decision making. Allows the use of qualitative, as well as quantitative criteria in evaluation. Wide range of applications in systems engineering