Data Organization

If you want to inspect data visually and structurally, it is important to understand how it is structured in the HERE Open Location Platform (OLP). The data that is stored in OLP is organized into catalogs that contain layers. These layers are further broken down into partitions.

Each OLP resource has its unique identifier – HERE Resource Name (HRN).

The image below shows the high-level structure of catalogs:

Relationship between a catalog, layer, and partition
Figure 1. Relationship between a catalog, layer, and partition
  • Catalogs: A collection of one or more data layers related to each other. For example, all layers of a given catalog might align to the same version of a map. While catalogs often contain geospatial data, catalogs can contain any kind of data. All catalogs are versioned.

  • Layers: Layers offer a way to segment data based on such semantics as road signs or road topology, lifecycle versions, and schemas.

  • Partitions and map tiles: In HERE tile partitioning, layers contain rectangular geographic tiles that represent an area of a map.

For more information on the data in the OLP, see the Data User Guide.

For more information on how to access OLP data through REST API, see the Data API Developer Guide.

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