Strategies for data storing in CH conservation plans. Façades analyses in GIS environment

The presented proposals concern the use of GIS technologies (Geographical Information Systems) for CH conservation data storage and management in order to arrange permanent and useful archives, even at the architectural scale, making controllable, correctable and improvable all the data archived. Such applications intend to satisfy some relevant and basic requirements: the need of easily query and detect systems, the interoperability and the easy access to the data. One first starting point consists in the use of terrestrial laser scanning and dense matching techniques for high detailed 3D points clouds generation. This approach is able to promise sustainable characterizations of many phases of conservation plan. Three cases study have been considered, all of them share the deepening study on façades of historical buildings, some of them use open source platform GIS, and geometric and topological relations among spatial data to base thematic comparisons.