The "Competency Owner": He is the guarantor of the semantic integrity of skills. That is to say, he/she ensures good practices in the formulation of these skills and their meaning for the population. He/she conducts interviews and reviews with the business experts and the local HR or HRBP. "The business expert: describes the main tasks attached to the jobs he/she manages, in order to formulate activities (set of tasks) and the resulting skills . The "job sponsor": He validates the strategic skills contained within the family of jobs that concerns him. He participates in the prospective vision of the skills organization.