Maintaining and developing competitive advantages in a constantly changing market require the creation and exploitation of a network of adequate competences. Competence management necessitates both clean formalization and evaluation of the pertinence of competences. This depends on several factors and involves subjective elements. In this paper, a methodological approach for evaluating competences is proposed. This new approach is mainly based on fuzzy logic which handles the integration of subjective elements. The approach is demonstrated within a real problem in the transportation industry.