| In this chapter, we chose to address the two areas covered by MOSAIC, that is, the analysis of interactions and the cognitive ergonomic psychology, through a methodological comparison. This undertaking is particularly interesting because of the work on a common data corpus, collected to meet the needs of both. It is particularly meaningful since, in both disciplines, tools were developed to address meetings involving various expertises, which confront and co-construct representations, and manage disagreements (see Chapters 1 and 2 of the book ). It especially allows us to indulge in a "practical" confrontation. Indeed, much discussion in the MOSAIC project has involved comparison through a theoretical approach, based on presentations of the respective methodologies, their questions and their objects. These presentations were usually made on the basis of data analyses, but data only known to the analyst. For interesting they were, these discussions have not always made possible to see emerge a common horizon in the research questions and points of interest, which yet are close. One of the most important contributions of this preparatory work has undoubtedly been to compel a more detailed explanation of the background and theoretical implications of the methodologies. With this in mind we have designed this chapter to continue this work of clarification and exchange through the practice of data analysis. The common question that has oriented the two analyses, and serves as tertium comparationis for the methodological comparison, is the designers' co-elaborating solutions. This questions created also the possibility for both authors to take into account the graphico-gestural in their analyses. |