The importance of the role of Information Technology (IT) for Knowledge Management (KM) within many companies has been widely recognized, but its impact on organizational performance has resulted difficult to be evaluated. Most of the difficulties depend on the variety and the typology of organizational variables, and on the relevant number of the involved actors. This paper provides a methodological framework to analyze the consequences of adopting IT tools for managing information and

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... e; in particular, advantages on performance, efficiency and efficacy metrics, investment profitability, and technological usability are investigated. The aim of the proposed methodology coincides with the main target pursued by firms: to have the possibility of evaluating IT solutions both ex ante, i.e. at the project/design phase, and ex post, i.e. at the assessment phase.