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The process of evaluation and selection of personnel is characterized by defining a specific set of criteria. The process of defining and determining the weights of the criteria is a significant, because the evaluation and the final selection of personnel are carried out on the basis of the defined set of criteria. Therefore, this manuscript is aimed at creating a set of the sales managers’ evaluation criteria as well as defining the weights of such criteria. The survey sample was 79 domain experts in the field of the recruitment and selection of personnel. The proposed approach based on the integration of the Delphi technique and the adapted SWARA methods was successfully applied for the purpose of defining the weights of the criteria and completely  responded to the requirements in terms of defining the criteria and determining the weights of the criteria.

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Compared to fuzzy numbers, intuitionistic fuzzy numbers provide greater opportunities for solving complex decision-making problems, especially when they are related to ambiguities, uncertainties and vagueness. However, their use is more complex, especially when it comes to ordinary users. Therefore, in this paper an approach adopted for evaluating alternatives on the basis of a smaller number of some more complex evaluation criteria is proposed. The approach is based on the use of linguistic variables, triangular intuitionistic fuzzy numbers, and the Hamming distance. At the end, a case study of hotels' websites evaluation is given to demonstrate the practicality and effectiveness of the proposed approach, together with its limitations and weaknesses. Additionally, a new procedure for ranking intuitionistic fuzzy numbers is proposed and its use is verified.