The reflections on interdisciplinarity cover several dimensions. One, among them, concerns the nature of what occurs between two disciplines. Does inter-disciplinarity relate to an intention, to a metatheory, to the object, or to a method? It is this ultimate space that we propose to study, supported by Reswebers (2000) proposition, putting the study of the homology of forms forward as a promising way to better understand the interdisciplinarity. Therefore, we have modelled the literature review methods for social work and nursing in order to clarify what expresses, on the plan of the method, either some form homologies or else some interdisciplinary possibilities.