The Main10ance project aims to implement a plan of maintenance and conservation of the historical cultural heritage. This is an INTERREG project. The V-A Cooperation Programme Italy-Switzerland 2014-2020 contributes to the objectives of the Europe 2020 Strategy and the New Swiss Regional Policy (NRP)addressing the needs common to both sides of the border and aiming to generate significant change in the area of cooperation, both in terms of increasing competitiveness and strengthening economic and social cohesion. The case study is the system of the Sacri Monti of northern Italy and Switzerland, groups of chapels and other architectural artifacts. The design phases are divided into: survey of the historical architectural heritage present; data processing and realization of three-dimensional models with the help of BIM software; integration of the same in the geographical context through GIS support; creation of a database which creates interoperability between the various domains and which collects information on the characteristics of the goods for maintenance and conservation purposes; possibility to make the information associated with 3D models accessible through demonstrators that allow interrogation of the DB and the models themselves. The geometric representation respects the subdivision of the levels of detail (LOD) for GIS with the standard CityGML and the levels of development (LOD) for BIM with the UNI 11337/4.

Abstract. The integration of Building Information Modeling (BIM), or Historic BIM (HBIM), and Geographic Information Systems (GIS) has assumed a crucial role not only in the management of smart cities or urban districts, as well as in the construction sector or infrastructures but also in the management, conservation and safeguarding of cultural heritage. This integration opens up new opportunities for decision-makers to assess the impact of interventions on heritage sites, evaluate preservation strategies, and facilitate informed decision-making processes. This contribution presents and describes the open-source web platform developed within the Interreg MAIN10ANCE project. The project aims to promote a common methodology for the cooperation and collaboration of the various stakeholders involved in the restoration, management and maintenance activities of built and cultural heritage sites. This objective has been pursued by creating a BIM-GIS database, focused on the definition of planned maintenance activities, whose data has been made available to professionals and management bodies by means of a shared web platform, usable directly in situ on a tablet or portable devices. The paper highlights the key components of the web platform, including the BIM, GIS, and artifact Viewers, the Planner, and the overall Dashboard. The platform's multiscale and multi-source approach makes it extensible to various cultural assets, whether environmental, architectural, or movable. By integrating historical and geometric information and planning maintenance activities, the web platform thus supports public administrations and professionals, amending existing state-of-the-art solutions.

L'innovazione tecnologica sta attualmente cambiando l'industria delle costruzioni, influenzata dal processo di digitalizzazione della quarta rivoluzione industriale. Similmente, ciò influenza la capacità dei domini di dati di consentire connessioni tra informazioni digitali sull'edificio e la loro rappresentazione, anche con l'uso di numerosi dispositivi IoT. Una delle innovazioni è lo sviluppo di database digitali basati sulla metodologia BIM, che permette lo scambio informativo effettuato usando strategie di rappresentazione sia tradizionali che innovative. Ciò è dovuto alle necessità dell'era della connessione, che richiede modelli basati su rete con un alto livello di maturità BIM. Poiché la produzione di contenuti di progetto si affida ancora a standard e convenzioni tradizionali, il contributo mira a valutare la capacità dei modelli collaborativi BIM di produrre elaborati grafici 2D e 3D, secondo le fasi attuali del processo edilizio. Considerando la differenza tra viste e disegni, lo studio fornisce un approccio analitico basato su algoritmo che ottimizzi la visualizzazione degli oggetti BIM in base alla scala di rappresentazione associata al loro livello di dettaglio grafico e alfanumerico. Le sfide incontrate dal presente lavoro riguardano principalmente i limiti delle tecnologie attuali e il contrasto tra metodologie BIM e standard grafici, che spingono perciò gli utilizzatori a manipolare inefficentemente rappresentazioni BIM intelligenti con aggiunte manuali.