Determining the proper knowledge management strategies is important to make sure that the alignment of organizational Procedures and the knowledge managementrelated Information produces effective creation, sharing and utilization of knowledge. Data sets in the form of vague values sometimes make the decision process very complicated and unstructured. Besides the fuzzy sets theory, vague sets theory is one of the methods used to deal with uncertain information and vague sets can provide more information than fuzzy sets. The purpose of this research is determining the knowledge management strategy of transforming vague values into fuzzy values using various techniques proposed in the literature and to propose a new method to calculate the correlation coefficient between vague sets. Numerical illustrations are given to support the proposed theory.