THE LAST DECADE DEVELOPMENT OF PROJECT DATA MANAGEMENT THROUGH THE BIM

In the last decade, the management of data through information systems has become more widespread in the field of AEC. BIM represents a complete and integrated methodological approach based on a new process of modelling and interpreting reality into an information system. Starting from the data acquisition and collection, an initial geometric 3D model of the building can be designed. The lack of a direct connection between different information systems (e.g. BIM and GIS) for the same object forces to determine a common domain through the definition of an ontology. This semantic ontology will represent the basis of this knowledge model based on data coming from different information systems allowing data standardization and data enrichment operations. Thanks to the ontology, the threshold of interoperability between BIM and other information systems in a semantic web environment can be overcome. After a process of data conversion in exchange data format, a graph database can be built which collects all the heterogeneous data of the whole project. Ensuring access to anyone to the web graph database, it is possible to formulate a query for information recognition.