The guidelines that structure this intervention, in relation to adults with low schooling level and insufficient professional qualifications are: i) the implementation of a framework of reference for key competencies that leads to both the accreditation of acquired competencies and the construction of diversified training paths, ii) the diversification and differentiation of education/training formats that provide an alternative to regular education by combining academic training with qualifying training and iii) the implementation of short, flexible and capitalizable training units.