Computerization projects play a critical role in providing applications that meet the information needs of organizations and facilitate organizational change. They functions as a channel for the transmission of knowledge from individuals, methods, and past learning. As a result, knowledge management is a prerequisite to the success of such projects. Nevertheless, sharing knowledge held by organizational actors involved in computerization projects remains a difficult goal to achieve. In this paper, we analyze the obstacles to knowledge sharing in computerization projects in terms of knowledge boundaries. Apart from this analysis, the main contribution of this paper is the proposal of an approach to knowledge sharing in computerization projects, which relies on a typology of boundary objects. A case study based on development project of a reporting tool in an insurance company, has allowed us to verify the relevance of the approach proposed in this paper, and highlight its main managerial contributions.