In order to develop technological and pedagogical learning supports to (1) incremental convergence towards a comprehensive representation of practices, (2) argumentative debates about practices, (3) reification and exploitation of knowledge outside and inside the CoPs, (4) engagement, participation and learning, (5) acceptable, adaptable and used by a large number of CoPs, PALETTE project will:

1. Describes the needs of existing CoPs representative of four domains of professional activities: teaching, engineering, management and health. For each of these domain, CoPs emerged in the organisational context as well as CoPs emerged in the educational context are considered ;
2. Designs with the participation of these CoPs an extensible set of information, knowledge management and collaboration services and specific scenarios supporting CoPs activities all along their life ;
3. Develops and implements these services and scenarios addressing particularity their usability, interoperability and knowledge integration ;
4. Validates these services and scenarios by describing and analysing the conditions for their acceptability, adaptability and uses.