Transition to Parametric Modelling in Heritage Documentation

Even today, the BIM methodology and the tools that go along with it are still intended, particularly in Italy, as an exception to the established practice, a novelty with clearly something unfinished. This pattern has only recently turned around thanks to tax breaks. If the information on the operational steps and the reliability of the collected data is not implemented in the virtualisation itself, despite the rigour in the development of a BIM, it loses its value. The possibility of reusing the model is dependent on quality assessment, which is one of the functional aspects of the methodology. Content validation is essential in any BIM process that is applied to existing buildings; in order to satisfy customer-specific requirements, the geometric and semantic data must be sufficiently documented and reliable. Valid solutions emerge from the literature but struggle to establish themselves because they are not well integrated into the tools outlined in the technical standards. This paper suggests a possible strategy to update some instruments in the national normative framework and make them compatible with current BIM regulations in order to use them for quantifying information content reliability.