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This article proposes a contribution to the methodological reflections concerning the articulation of heterogeneous data (e.g. direct observations, audiovisual recordings, interviews, physiological data, etc.) to reinforce the analysis of nurses’ activity in neonatal intensive care. These reflections are organized in two interdependent axes of contribution: 1. to enrich the analyses, 2. to engage the researcher to be aware of and account for what he/she does when processing and analyzing these data. The reflections conducted use the PRCA and are based on the reflexive work of two researchers who have studied different research objects. A methodological tool, a three-part table, used as a support by Baraër-Mottaz (2020) for the processing and analysis of empirical data is studied. These data come from body perceptions that are more or less conscious and difficult to express by nurses. The article proposes to make explicit the relationship between the data by referring to the principles of coincidence, compatibility/complementarity and apparent contradiction, proposed by Cahour, Licoppe and Creno (2018).