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Stefan (Diskussion | Beiträge) K (hat „Auto-Discovery“ nach „Geodata Discovery“ verschoben: More accurrate name.) |
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'''Standard proposal for the (auto-)discovery of geodata''' | |||
Author: Stefan Keller | |||
There is a strong proposal in order to support search services (especially webcrawlers) and thus to ease the discovery of geodata. | |||
The Geodata Discovery standard consists of following parts or other standards: | |||
# A "see and see also" file containing typified weblinks that provide semantics to help focussed crawlers. | # A "see and see also" file containing typified weblinks that provide semantics to help focussed crawlers. | ||
## Weblink typing: xlink Atom link relation type, | ## Weblink typing: xlink Atom link relation type, | ||
## Carrier file formats: HTML (Meta Tags) sitemaps.xml , KML, GeoRSS (xlinks) | ## Carrier file formats: HTML (Meta Tags) sitemaps.xml , KML, GeoRSS (xlinks) | ||
# Geotag icon (Microformat) for human readability and trustworthiness (Google's principle of visual control). | # Geotag icon (Microformat) for human readability and trustworthiness (Google's principle of visual control). | ||
# A leightweight | # A leightweight harversting interface like OpenSearch-Geo | ||
# Extension of GetCapabilities from OGC WxS specifications | # Extension of GetCapabilities from OGC WxS specifications | ||
This proposal does not compete with existing standards like [[CSW]]. In contrary, it is a supplement of those. It's the basis for better domain-specific search engines, like geocat or geometa.info. | |||
This proposal is own experiences and - among others - based on the following sources: | |||
* http://highearthorbit.com/geoweb-standards-discoverability/ | * http://highearthorbit.com/geoweb-standards-discoverability/ | ||
* http://sgillies.net/blog/985/proposed-standard-for-web-linking | * http://sgillies.net/blog/985/proposed-standard-for-web-linking | ||
Version vom 7. April 2010, 09:56 Uhr
Standard proposal for the (auto-)discovery of geodata
Author: Stefan Keller
There is a strong proposal in order to support search services (especially webcrawlers) and thus to ease the discovery of geodata.
The Geodata Discovery standard consists of following parts or other standards:
- A "see and see also" file containing typified weblinks that provide semantics to help focussed crawlers.
- Weblink typing: xlink Atom link relation type,
- Carrier file formats: HTML (Meta Tags) sitemaps.xml , KML, GeoRSS (xlinks)
- Geotag icon (Microformat) for human readability and trustworthiness (Google's principle of visual control).
- A leightweight harversting interface like OpenSearch-Geo
- Extension of GetCapabilities from OGC WxS specifications
This proposal does not compete with existing standards like CSW. In contrary, it is a supplement of those. It's the basis for better domain-specific search engines, like geocat or geometa.info.
This proposal is own experiences and - among others - based on the following sources: