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1 www.envirogrids.cz www.envirogrids.net
INSPIRE and GEOSS Catalogues Theory and Reality Stepan Kafka, Karel CharvatCzech Centre for Science and Society
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You are forcing me to sin, because when using the portal I always start cursing …
John, portal end-user
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How to avoid it
• For end-users operating services are crucial– Availability– Quality of service / data / metadata
• Preparing catalogue of „clean services“ to ensure availability
• First step - only WMS
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Establishment of the catalogue• Harvesting existing catalogues• Catalogues CSW 2.0.2 ISO AP 1.0• Only services (type=service)• Periodically (P1D)• Sources
– GEOSS registry– INSPIRE geoportal– Catalogues we know about
• Problems– No central catalogue / we don’t know about services– Classical search engines did not succeed– Many catalogues do not response
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Harvested catalogues• ISPIRE national nodes: Austria, Belgium, Czech republic, Finland,
France, Germany, Luxembourg, Poland, Portugal, Slovakia, United Kingdom
• CIDP• EEA SDI• ENVIROGRIDS• EuroGEOSS• GEOSS• Habitats• One Geology Europe• Plan4all• WHO
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Service metadata
• Problems– poor service metadata (missing abstract etc.)– viewer or web page address instead of service– no mandatory thematic classification in INSPIRE– operatesOn broken links– serviceType not clear
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Testing services availability• If Capabilities document is available and valid• Periodically (P1D)• Not valid services are set “hidden”, not erased• Detect linkage in metadata
1. distributionInfo/*/transferOptions/*/onLine/*/linkagehttp://myservice.com/wms?SERVICE=WMS&REQUEST=GetCapabilities
2. distributionInfo/*/transferOptions/*/onLine/*/protocolOGC:WMS-1.1.1-http-get-capabilities
3. identificationInfo /*/containsOperations/*/ connectPoint/*/linkage
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Testing avalability of services• Tools for service provider feedback
– RSS channel– Automatic mail notification– “Heartbeat” record
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„Heartbeat“ protocol
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Results• 2222 services harvested• serviceType (all / valid)
– WMS = 96 / 88– OGC:WMS = 1418 / 1351– view = 343 / 190– View = 1 / 1– VIEW = 2 / 2– View Service = 76 / 76
• All WMS : 1860 / 1632 (87 %)
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