Standards
Most of the OGC standards depend on a generalized architecture captured in a set of documents collectively called the Abstract Specification, which describes a basic data model for representing geographic features. Atop the Abstract Specification members have developed and continue to develop a growing number of specifications, or standards to serve specific needs for interoperable location and geospatial technology, including GIS.
More information here: http://www.opengeospatial.org/standards
The OGC standards baseline comprises more than 30 standards, including:
- CSW - Catalog Service for the Web: access to catalog information
- GML - Geography Markup Language: XML-format for geographical information
- GeoXACML - Geospatial eXtensible Access Control Markup Language (as of 2009 in the process of standardization)
- KML - Keyhole Markup Language: XML-based language schema for expressing geographic annotation and visualization on existing (or future) Web-based, two-dimensional maps and three-dimensional Earth browsers
- Observations and Measurements
- OGC Reference Model - a complete set of reference models
- OWS - OGC Web Service Common
- SOS - Sensor Observation Service
- SPS - Sensor Planning Service
- SensorML - Sensor Model Language
- SFS - Simple Features - SQL
- Styled Layer Descriptor (SLD)
- WCS - Web Coverage Service: provides access, subsetting, and processing on coverage objects
- WCPS - Web Coverage Processing Service: provides a raster query language for ad-hoc processing and filtering on raster coverages
- WFS - Web Feature Service: for retrieving or altering feature descriptions
- WMS - Web Map Service(WMS): provides map images
- WMTS - Web Map Tile Service: provides map image tiles
- WPS - Web Processing Service: remote processing service
- GeoSPARQL - Geographic SPARQL Protocol and RDF Query Language: representation and querying of geospatial data for the Semantic Web
The design of standards were originally built on the HTTP web services paradigm for message-based interactions in web-based systems, but meanwhile has been extended with a common approach for SOAP protocol and WSDL bindings. Considerable progress has been made in defining Representational State Transfer (REST) web services.
Read more about this topic: Open Geospatial Consortium
Famous quotes containing the word standards:
“As long as our people quote English standards they dwarf their own proportions.”
—Ralph Waldo Emerson (1803–1882)
“Today so much rebellion is aimless and demoralizing precisely because children have no values to challenge. Teenage rebellion is a testing process in which young people try out various values in order to make them their own. But during those years of trial, error, embarrassment, a child needs family standards to fall back on, reliable habits of thought and feeling that provide security and protection.”
—Neil Kurshan (20th century)
“To arrive at a just estimate of a renowned man’s character one must judge it by the standards of his time, not ours.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)