Laurent COSTA | J. Bart MCLEOD | Jeffrey P. Du VERNAY | Herbert D. G. MASCHNEr | Victor Manuel LOPEZ-MENCHERO BENDICHO
(CNRS – UMR 7041 ArScAn, Nanterre, France)

Keywords: GIS, 3D, Geohistorical databases, web mapping, georeferenced history

Acquisition techniques have changed significantly over the last ten years. Digitization has continued to develop at all scales (from the object to the territory) and for all types of sites (from ancient prehistory to the modern period). They have made it possible both to multiply the angles of measurement of archaeological and heritage reality and to make available to researchers new multimodal collections of studies that are becoming the new infrastructure of research.
But while the technical evolution of recent years remains spectacular, it is nevertheless true that the conceptual and technical links to the use of these new objects of knowledge are not all solved. In a context where the Internet has become the essential development tool, the question of interfaces that make it possible to combine heterogeneous approaches and data within the same management system is crucial. Space can then be seen as a primary entry point to facilitate access to these knowledge bases and the development of web mapping can allow multi-scale repositories to be built in shared access.
Several multimodal platform experiments have been developed by different communities, notably archaeologists in Europe and elsewhere (ArcheoFab, ArkeoGIS, Chronocarto, Ariadne, Zamani project, for example). These infrastructures raise many concrete questions: those of access to research data for researchers and civil society, those of the structuring of these groups, those of their governance and finally those of the interfaces for making them available. Here we examine the state of various practices associated with these tools and propose, through concrete examples, initiatives designed to promote the sharing of knowledge and data acquired.

Relevance for the conference: The integration of GIS, 3D data, and web structures for serving those data is of paramount importance to visualization and digital heritage.
Relevance for the session: Creating appropriate web interfaces that manage all scales of digital spatial data, from the artifact to the landscape, is critical to the mission of the project.
Innovation: We create a new initiative for the integration of different forms of spatial data and their web presentation, with concrete examples.
• Meghan C.L. Howey, Marieka Brouwer Burg, 2017. Assessing the state of archaeological GIS research: Unbinding analyses of past landscapes. Journal of Archaeological Science, Volume 84, Pages 1-9.
• Polig, M. (2017). 3D GIS for building archeology – Combining old and new data in a three-dimensional information system in the case study of Lund Cathedral. Studies in Digital Heritage, 1(2), 225-238.