Analysis of the change in the content of the documentation profession through job advertisement and vocabulary. Activities such as information retrieval, diffusion and processing remain important ; new functions are emerging, of advising mediator and systems designer. In addition to the traditional jobs, organised into a hierarchy (archivists, librarians and documentalists), come the informations specialists. Industrial and commercial firms as well as services are the most promising areas ; they require new profiles. The demand applies above all to the recruitment of scientists.