A portfolio is an organised collection of materials that presents and verifies skills and knowledge acquired through experience. It is of particular relevance to validating non‑formal and informal learning because it allows the individual candidate to contribute actively to the collection of evidence and also offers a mix of approaches strengthening the overall validity of the process. This is confirmed by the fact that many           countries have introduced the portfolio  as a central element in their validation approaches (CEDEFOP, 2009)

The portfolio designed under the Tremplin Migrant(e)s project should both value the existing voluntary experience and to enhance a voluntary involvement among female migrants.  Its aims is to change the perspectives: migrants are no more considered as "publics" but as main "actors" in the associations.