Multi-criteria decision making method based on analytic hierarchy process with intuitionistic fuzzy preference information

An extension method of multi-criteria decision making (MCDM) is proposed in the thesis for selection and assessment of parting line in mould design. First of all, linguistic variable is used to express grade of alternative parting line scheme and weight of criterion significance; and then, the membership function of final fuzzy assessed value is determined based on these linguistic values; in the end, a new ordering method of maximum and minimum sets will be adopted for normalisation of weight grading and defuzzification to clear value and for strength and weakness ordering of alternative scheme. The verification and contrast experiment show effectiveness of the method in the thesis and the comparison with traditional fuzzy multi-criteria decision making method shows the method in the thesis is more applicable.