Root element of the service configuration, defines available datasets, rendering parameters and get view request restrictions. List of images which can be selected as the background of the scene, usually the sky. Image which is rendered on top of the scene. Base definition for all data sets. Defines metadata properties like name, title and descriptions. A dataset not visible through the capabilities and can not be requested by a client. An elevation model is visible through the capabilities and can be requested by a client. Normally it will define a DEM (Digital Elevation Model) but it might as well have a more semantic character (using for example rent prices of houses). An colormap which can be applied to an elevation model and can be requested by a client. The colors will be lineary interpreted between the min and max color. A group of texture providers, which can be requested to receive textures from. A data type defines some properties like name, title and descriptions. A data type can have a bounding box, defining it's validity. The scale denominators are used to define the scales for which a data instance is valid. Defines a texture for very closed up views of the terrain, for this purpose an SE-Style file will be evaluated, containing information about a data source having geometries and style information. A group of datasources which can be requested to receive features (buildings, trees etc.) from. Defines the number of pixels one meter of a building must have, before switching to the next level of detail. Each level defines a quality level (starting with 0) where 0 is the most coarse level.