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New digital potential is profoundly changing the authorship function, especially in direct scientific communication, although authorship of a scientific discourse nevertheless obeys the same criteria in the digital world as in print. What has mainly changed are the methods used to express and disseminate research results, because of the appearance of infrastructures and scientific practice of a new type. In particular, posting data to researcher-approved information systems is increasingly recognized as a legitimate form of publication. This implies that models for evaluation and recognition are being brought into question and new models are being proposed. The digital revolution is transforming the role structure of a scientific communication system where the overall picture, at present, is fragmentary.