is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. This is an author-deposited version published in: http://sam.ensam.eu Handle ID: .http://hdl.handle.net/10985/7777 To cite this version : Chiara STEFANI, Livio DE LUCA, Philippe VERON -Time indeterminacy and spatio-temporal building transformations: an approach for architectural heritage understanding Abstract Nowadays most digital

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... s in architecture and archeology describe buildings heritage as a whole of static and unchangeable entities. However, historical sites can have a rich and complex history, sometimes full of evolutions, sometimes only partially known by means of documentary sources. Various aspects condition the analysis and the interpretation of cultural heritage. First of all, buildings are not inexorably constant in time: creation, destruction, union, division, annexation, partial demolition and change of function are the transformations that buildings can undergo over time. Moreover, other factors sometimes contradictory can condition the knowledge about an historical site, such as historical sources and uncertainty. On one hand, historical documentation concerning past states can be heterogeneous, dubious, incomplete and even contradictory. On the other hand, uncertainty is prevalent in cultural heritage in various forms: sometimes it is impossible to define the dating period, sometimes the building original shape or yet its spatial position. This paper proposes a modeling approach of the geometrical representation of buildings, taking into account C. Stefani (B) · L. De Luca · M. Florenzano UMR CNRS/MCC 694 MAP, Modèles et simulations pour l'Architecture, l'Urbanisme et le Paysage, ENSA Marseille, 184, the kind of transformations and the notion of temporal indetermination.