EN ISO 19112:2005

Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Terms and definitions
5 Notation
  5.1 Unified Modelling Language (UML)
  5.2 Attribute tables
6 Concepts of spatial referencing using geographic identifiers
  6.1 Spatial referencing using geographic identifiers
  6.2 Spatial reference systems using geographic identifiers
  6.3 Gazetteers
7 Requirements for spatial reference systems using
  geographic identifiers
  7.1 Attributes of a spatial reference system using
      geographic identifiers
  7.2 Attributes of a location type
8 Requirements for gazetteers
  8.1 Properties of a gazetteer
  8.2 Attributes of location instance
Annex A (normative) Abstract test suites
Annex B (informative) Example spatial reference system
                      using geographic identifiers
Annex C (informative) Examples of gazetteer data
Bibliography

ISO 19112:2003 defines the conceptual schema for spatial references based on geographic identifiers. It establishes a general model for spatial referencing using geographic identifiers, defines the components of a spatial reference system and defines the essential components of a gazetteer. Spatial referencing by coordinates is not addressed in this document; however, a mechanism for recording complementary coordinate references is included.ISO 19112:2003 assists users in understanding the spatial references used in datasets. It enables gazetteers to be constructed in a consistent manner and supports the development of other standards in the field of geographic information. It 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.