ISO 19115

ISO 19115
Name	ISO 19115
Title	Geographic information — Metadata
Abbreviation	ISO 19115
Status	Published
Version	2003 / 2013 series
Organization	International Organization for Standardization
Domain	Geographic information

ISO 19115

ISO 19115 is an international standard that defines the schema required for describing geographic information and services to support discovery, evaluation, and use. It provides a structured set of metadata elements intended to facilitate interoperability among spatial data infrastructures, catalogues, and portals used by agencies, research centers, libraries, and archives. The standard underpins many national and international initiatives for sharing geospatial resources across platforms and jurisdictions.

Overview

ISO 19115 was developed under the aegis of the International Organization for Standardization by technical committees and working groups that included experts from organizations such as the United Nations, the European Commission, the United States Geological Survey, and national mapping agencies. It aligns with broader efforts exemplified by the Open Geospatial Consortium, the World Meteorological Organization, and the Committee on Earth Observation Satellites to harmonize metadata practices. Adoption by institutions like the National Oceanic and Atmospheric Administration, the British Geological Survey, and the Australian Bureau of Meteorology has influenced inventories in regional systems including INSPIRE and GEOSS.

Scope and Purpose

The scope of the standard covers metadata elements for datasets, dataset series, and services to enable discovery, evaluation, and use within infrastructures such as NASA Earthdata, Copernicus, and data repositories maintained by universities like Harvard, Oxford, and Stanford. Its purpose is comparable to classical bibliographic standards used by the Library of Congress, the Bibliothèque nationale de France, and the Deutsche Nationalbibliothek but tailored to spatial, temporal, and quality attributes critical to cartography, remote sensing, and environmental monitoring projects such as Landsat, Sentinel, and MODIS.

Structure and Components

The standard defines conceptual metadata entities including identification, extent, quality, spatial reference, lineage, and distribution, which echo practices from archives like the Smithsonian Institution and museums such as the British Museum. Components map to XML and ISO/TC 211 deliverables and interoperate with encoding rules used in OGC Catalog Service for the Web, Dublin Core used by the Internet Archive, and CSW implementations by ESRI, QGIS, and GeoServer. It references coordinate reference systems similar to EPSG registries maintained by organizations like IGN, IOGP, and the National Geospatial-Intelligence Agency.

Implementation and Profiles

Implementations often take the form of application profiles and extensions created by national mapping agencies, standards bodies, and consortia including the European Environment Agency, Statistics Canada, Japan Meteorological Agency, and the National Aeronautics and Space Administration. Profiles tailored for INSPIRE, FGDC (Federal Geographic Data Committee), and ANZLIC have been adopted by provinces, states, and ministries such as Environment Canada, Bundesamt für Kartographie und Geodäsie, and Geoscience Australia. Software ecosystems supporting implementations include GeoNetwork, CKAN, ArcGIS, and PostgreSQL/PostGIS deployments at institutions such as MIT, CERN, and the Max Planck Society.

Related Standards and Revisions

ISO 19115 is part of the ISO/TC 211 family and complements standards including ISO 19101, ISO 19103, ISO 19107, ISO 19111, and ISO 19119; later revisions and related parts produced updates aligning with ISO 19115-1 and ISO 19115-2, mirroring trajectories in projects like the European INSPIRE Directive and initiatives by the World Bank and the United Nations Environment Programme. Interoperability is enhanced through mapping exercises with standards such as Dublin Core, FGDC-STD-001-1998, OGC Catalogue Service specifications, and schema catalogs maintained by organizations like the Open Knowledge Foundation and the Research Data Alliance.

Adoption and Use Cases

Adoption spans governmental agencies, scientific programs, and commercial vendors: national mapping organizations, environmental monitoring programs like the Intergovernmental Panel on Climate Change data portals, biodiversity databases such as GBIF, and hydrology networks managed by agencies like USGS and JAXA. Use cases include discovery of satellite imagery for climate research at NASA, integration of topographic data for infrastructure projects in the European Commission TEN-T program, and heritage mapping by institutions such as UNESCO, the British Library, and the Bibliothèque nationale de France.

Criticisms and Limitations

Critics include practitioners from small national agencies, academic research groups, and open-data advocacy groups who point to complexity, verbosity, and barriers to entry similar to those cited in debates around standards like HL7 and SCORM. Limitations noted by implementers at organizations such as NGOs, municipal governments, and universities include inconsistent profiles across jurisdictions, challenges in aligning with lightweight schemas used by the Wikimedia Foundation or Internet Archive, and the maintenance overhead experienced by data catalogues at institutions like the European Space Agency and national academies of science.