The HERE platform stores data in catalogs. A catalog is a collection of data that is managed as a single set. Catalogs contain layers that represent different types of data. In the case of map data, layers can be overlaid spatially to construct a complete digital map. For example, a catalog may contain a map that includes layers for road attributes, topology, and signs. While catalogs often contain geospatial data, catalogs can contain any kind of data.

A catalog can contain any combination of layer types. For more information, see Layers.

The image below shows the structure of catalogs.

Catalog Structure
Figure 1. Catalog Structure

Data sharing is controlled at the catalog level. You can share an entire catalog, including all its layers.


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