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This article examines the conditions for the adoption of technologies in organizations, taking as axes of discussion the notions of acceptability and technological acceptance. Acceptability is seen to be a situation in which the user is prompted to establish an evaluation by anticipating the cost-benefit of using a number of criteria. Acceptance is an analysis of the impact of the use of technologies on various dimensions of the professional activity. After a description of the specific characteristics and determinants of each of these two approaches, this paper aims to show that they must both be integrated and complemented in a general model for the design and appropriation of technology in organizations.