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Table 5 Description of tables present in the database for the discovery of 3D city models as related to the 3D Metadata ADE
| Table | Description | Unique city model identifier |
|---|---|---|
| Master Table | Containing the unique city model identifier, the unique metadata identifier, the file names of both the city model and metadata, and the presence or absence of textures and materials | Primary key |
| ISO Categories | All of the categories as listed in ISO 19115-1:2014 - Table F.1 | Primary key |
| Thematic Models | Presence or absence of each thematic model and the count of those features | Primary key |
| Thematic Model LoDs | The count by subClass and LoD for city features within a thematic model | Foreign key |
| Lineage | The source and process steps that track the lineage of a 3D city model | Foreign key |
| ADEs | Containing all of the categories associated with the ADEidentifier _MetadataHelperClass for every ADE present | Foreign key |
| Terrain | Containing counts by terrain representation types | Foreign key |
