Geodata Discovery: Unterschied zwischen den Versionen
Aus Geoinformation HSR
Stefan (Diskussion | Beiträge) |
Stefan (Diskussion | Beiträge) |
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The Geodata Discovery standard consists of following parts or other standards: | The Geodata Discovery standard consists of following parts or other standards: | ||
| − | # | + | # "see and see also" links 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) linking to the | + | # Geotag icon (Microformat) for human readability and trustworthiness (Google's principle of visual control) linking to the formats containing "see and see also" links. |
| − | # OpenSearch-Geo as a leightweight harversting interface. Its simply some HTML tags: see http://www.opensearch.org | + | # OpenSearch-Geo as a leightweight harversting interface. Its simply some HTML tags: see [http://www.opensearch.org OpenSearch.org] > OpenSearch Geo extension (Draft). |
| − | # Extension of GetCapabilities from OGC WxS specifications | + | # Extension of GetCapabilities from OGC WxS specifications: tbd.! |
| + | |||
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 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. | ||
Version vom 19. April 2010, 10:03 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:
- "see and see also" links 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) linking to the formats containing "see and see also" links.
- OpenSearch-Geo as a leightweight harversting interface. Its simply some HTML tags: see OpenSearch.org > OpenSearch Geo extension (Draft).
- Extension of GetCapabilities from OGC WxS specifications: tbd.!
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:
