The knowledge of the architectural heritage in HBIM systems from the discrete model to the parametric model

The application of BIM architectural heritage and therefore the parameterization of its elements present certain complexity, because the historical built environment must be subject to systematic readings, in order to detect an information system based on elements ontologically defined, which must be associated with data able to document their material, historical and constructive peculiarities. Referring to a case study, the paper presents some theoretical implications and operational procedures concerning the transition from discrete three-dimensional model of point clouds to a parametric model.