The question about a good quality of your 3D city model can not be answered simply, since it depends decisively on the particular application.
We assist you in analyzing your data, whether it already meet all the criteria for new applications or, where appropriate, where it still has some deficits. We also support you in building up and defining product specifications for 3D city models.
Additionally we advise you in an early stage which conditions your 3D city model should meet for the intended purpose. We jointly define clear quality rules for checking and evaluating 3D city models of yours or of external service providers.
Due to the active participation in fundamental research as well as an active participation in the SIG3D Quality Working Group we have many years of experience in the area of data quality of virtual 3D city models.