The article presents the findings of the evaluation of the usefulness of System Zawodowcy (System of Professionals), which supports schools and employers on the labor market in the Greater Poland region. The evaluation proves that the system fulfills its function well. Since the solution employs a competence tree and the accompanying detailed descriptions of competences, as well as fast internet access to a large number of candidates, it can be used by the management of enterprises for human resource management purposes. It can be particularly helpful in the processes of recruitment and selection, adaptation, training, talent management and organizational culture development.