Developing a collaborative network is seen as one important dimension of modularisation as many stakeholders can play a significant role in building up a good modular system: training institutes and their trainers/ teachers, government, accrediting bodies, employers' organisations, individual employers, and not to forget the young people themselves. Collaborative networks can be developed at the system level, the institutional level and the individual level or across levels.The research revealed that at the system level the involvement of different stakeholders can be beneficial for the performance of tasks necessary or related to the development of a modular system, such as: renewing the curricula, making the learning content of modules transparent and comparable, accrediting modules and regulating the transfer of credits. At the institutional level, different stakeholders can be involved to create a learning environment where competences can be acquired through practice, to clarify the needs of companies in the region or to bring together companies and VET institutions to develop working methods or educational training programmes. At the individual level, several people can contribute to make a good match between the trainee and a training firm, to help trainees with self-evaluation or to support the employer responsible for the trainee.