A Multi-Level Platform for Data Management in the Planned Conservation of Cultural Heritage Buildings: The Cathedral of Santa Maria Assunta in Pisa, Italy

The management of historic buildings goes beyond technical expertise or theoretical knowledge, requiring not only the integration of multiple professional competences but also the ability to tackle the practical challenges that arise in everyday conservation practice. Planned conservation focuses on the physical preservation of the asset through proactive strategies such as monitoring, maintenance, and condition assessment. Its implementation demands visual support, integration of expertise, process automation, and collaborative tools. Data management platforms can support this effort, with digital technologies enabling their effective creation and use. This paper presents a methodology for developing a digital platform to support the planned conservation of the Cathedral of Santa Maria Assunta in Pisa (Italy). The approach, integrating Building Information Modelling and Geographic Information System techniques, delivers an interactive three-dimensional model published via cloud-computing services. By integrating multiple representation levels within a unified digital environment, the platform addresses the challenge of integrating different disciplines taking into account variable levels of refinement. It ensures flexible, long-term conservation data management, and can be easily adapted to other cultural heritage assets.