The purpose of this article is to present the significant methodological contribution of digital documentary treatment within humanities research activities. This demonstration is made through the reflexive analysis of a digital humanities project in the History of Art: the project “Bibliographies de critiques d’Art Francophones” (Bibliographies of French-speaking art critics). This project allows dozens of researchers and students to observe the same object of research while crossing disciplinary points of view and practices. In this article, we present an info-documentary disciplinary approach, within the Information and Communication Sciences. However, a focus is also proposed on the interdisciplinary methods of treatment that are so fruitful for identifying new fields of research within the humanities. This article is, therefore, a feedback on a digital humanities project that is intended to be both a reflexive observation and an opening on other issues and methods.