Research activities related to the application of the GIS (Geographical Information Systems) software not only in geographical contexts but also in the architectural ones, in order to build an exhaustive knowledge systems aimed at cataloguing cultural heritage, at monitoring preservative renovation activities and at assessing risks and cultural heritage vulnerability. The development and spread of Architectural Information Systems based on 3D models (topologically related to complex information systems, as the scientific literature testifies) is an important monitoring and knowledge tool of the cultural heritage