What is this ISO 19112 - Spatial referencing by geographic identifiers about?
ISO 19112 defines the conceptual schema for spatial references based on geographic identifiers.
ISO 19112 establishes a general model for spatial referencing using geographic identifiers and defines the components of a spatial reference system. ISO 19112 specifies a conceptual scheme for a gazetteer.
ISO 19112 enables producers of data to define spatial reference systems using geographic identifiers and assists users in understanding the spatial references used in datasets. ISO 19112 is applicable to digital geographic data, and its principles may be extended to other forms of geographic data such as maps, charts, and textual documents
Who is ISO 19112 – Spatial referencing by geographic identifiers for?
BS EN ISO 19112:2019 on Spatial referencing by geographic identifiers is useful for:
- Digital geographic map designers
- Global Positioning System (GPS) department
- ArcMap developer
Why should you use ISO 19112 – Spatial referencing by geographic identifiers?
ISO 19112 enables gazetteers to be constructed in a consistent manner and supports the development of other standards in the field of geographic information.
Geographic information contains spatial references that relate information represented in data or text to positions in geographic space. ISO 19112 deals only with spatial referencing by geographic identifiers. This type of spatial reference is sometimes called “indirect”. The purpose of ISO 19112 is to help the users with the specific ways to define and describe systems of spatial references using geographic identifiers.
ISO 19112 covers the definition and recording of the referencing feature. A spatial reference system using geographic identifiers is a collection of Location classes of different sub-types, while a gazetteer is a collection of location instances.
What’s changed since the last update?
BS EN ISO 19112:2019 supersedes BS EN ISO 19112:2005. BS EN ISO 19112:2019
includes some technical changes with respect to BS EN ISO 19112:2005. These include:
- Introduction of the class Location Class to replace the class SI_Location Type
- Introduction of the class Location to replace the class SI Location Instance
- Introduction of the class Spatial Reference System Using Geographic Identifiers to replace the class SI_Spatial Reference System Using Geographic Identifiers
- Introduction of the class Gazetteer to replace the class SI_Gazetteer
- Introduction of the class Geographic Identifier
