This paper illustrates a local research project aimed to find a cognitive basis, formalised through a shared language and made of existing implicit and/or encoded knowledge on cross-compliance, and to develop an integrated, joint communication action, capable of strengthening the local relational networks. This project was built around the following principles: • Participation: by sharing and exchanging information and knowledge in a joint learning; • Cooperation: by individual skills outing within a framework of activities and actions; • Promotion of knowledge: through the full promotion of expertises of varying extents and contents, resulting from corporate practices, within-farm extension and the research world. The project involves creating a local agro-environmental platform, capable of binding together, through a participatory work, the field practice, the interests of the different stakeholders in the primary sector, and the local research facilities dealing with cross-compliance.