Consequently, to handle human barriers that may hamper extracting and sharing the experts’ tacit knowledge, we propose a generic two-step methodology that describes processes and actors involved in the conceptualization and knowledge creation based on a multi-level approach. The objective of proposing a multi-level approach is to identify as a first stage a generic domain level that can be reused by any community/group of users interested to this domain, then extending it to support the user-requirements. We applied the proposed methodology to formalize and classify the scientific research activities within our SARA research team