Analyse de réseaux sociaux des usages des Infrastructures de Données Géographiques. Le cas des acteurs côtiers en France et des IDG qu'ils mobilisent

The development of spatial data infrastructures (SDIs) aims to promote environmental management. However, technological advances, organizational and regulatory frameworks available do not seem sufficient for the realization of such an objective. For many authors, the real contribution of SDIs depends on the answers they provide to their users. This paper presents an original methodological approach to the study of the usage of SDIs based on Social Networks analysis. This research focuses specifically on French SDIs and their contribution to coastal stakeholders. The results highlight the main structural properties of a series of SDIs, distinguishing between main SDIs and SDIs playing a secondary role in the management of coastal areas. This multi-level and multi-SDIsuse is needed to allow coastal stakeholders to access geographic information they needed to conduct their territorial projects. MOTS-CLES :Infrastructures de Données Géographiques (IDG), usages, acteurs côtiers, analyse de réseaux sociaux