Fig. 5From: CityGML Application Domain Extension (ADE): overview of developmentsExcerpt of the UML diagram of the 3D Metadata ADE, depicting how to extend it to incorporate the metadata related to other ADEs (such as Noise ADE) i.e. an ADE of an ADE for an ADE. Source: 3D Metadata ADE (https://github.com/tudelft3d/3D_Metadata_ADE)Back to article page