Requirements of the internal data model#

Urban digital twin data#

In order to be able to validate and repair the models of urban digital twins, CityDoctor needs the capability to access their data.

Reference model#

While CityDoctor is capable of repairing geometrical errors, the repaired model can contain discrepancies with the real object. This is expected, since CityDoctor purely operates via model data.
To alleviate this, functionalities for the usage of a reference model are desired. The reference model would allow CityDoctor to determine the quality of a repair step, enabling the implementation of more sophisticated healing-routines.

Data format support#

The aforementioned requirements revolve around data that is not compatible with, or available as, CityGML. Therefore, to