This project proposal is focused on some relevant common trends emerging at the European level in the building sector:-shortages of qualified workforce, and mismatch between supply and demand;- consequent increasing of mobility and temporary migration phenomena- need to improve transparency in the job market and to implement services aiming at managing mobile human resources -growing importance of non formal and informal learning processes occurring at the workplace, with a lack of procedures allowing the consolidation and certification of acquired competences-difficulties in recognizing in a good way the knowledge and the experience of people out of work that want to come back in the job market.