The application of interval type 2 fuzzy analytic hierarchy process to solve personnel selection problems / Raja Nur Hafizah Raja Hang Tuah, Nurfaezah Mohd Husin and Mardiana Zaini

Personnel selection is a phase of human resource management which is selecting the best personnel from a pool of candidates suitable for a vacant position in an organization. This paper aims to present a comprehensive multi-criteria decision making (MCDM) method extended by Interval Type-2 Fuzzy Sets (IT2 FSs) which is Interval Type-2 Fuzzy Analytic Hierarchy Process (IT2 F AHP). Then, the weight priority obtained by IT2 F AHP will be compared with the Analytic Hierarchy Process (AHP) method and it illustrated that the weight priority of AHP is higher than IT2 FAHP. This paper also formalizes several important issues on sensitivity analysis and derived some critical theoretical results. Finally, it can be concluded that the final evaluation made by the decision makers has a significant consistency shown by sensitivity analysis results. Fuzzy sets of type-2 can be used to cater the problem of the inability of Interval Type-I Fuzzy Sets (IT I FSs) to deal with membership grade even with an exact number in [0,1]. Six criteria (work experience (C1), education (C2 ), analytical thinking (C3 ), communication and problem solving skills (C4 ), time management (C5) and core ability (C6 )) were identified by the organization on selecting the right personnel among five candidates (Ai, A2, A3, A4 and A5 ). The results show that C6 and A1 is the most preferred criterion and alternative respectively. Thus, the implementation of the proposed methodology is further demonstrated by several illustrative examples.