Modeling competences is a real challenge for the people working in a lot of domains like human resource (HR), companies, e-Learning related activities, universities and not only. Universities and e-Learning organizations define the prerequisites that must be satisfied before joining the university and define also the competences that will be acquired after successful completion. After, the curricula or training programs are stated. The future students and companies mainly HR departments try to define their own competences and these are compared with those offered by the applicants and universities respectively. The proposed model will be included in the project Cex 05-D8-66/2005. Based on a multi-agent system, it will offers to the universities, companies and students the capabilities for defining and presenting the competencies, making comparisons between them with appropriate scores and evaluations in order to use them in an efficient way.