can work? askgiraffe
DESCRIPTION
ISO19115. Can work? askGIraffe. Lionel Elliott askGIraffe Manager. ISO19115. The Standard for metadata Contains standards for ‘discovery’ and feature descriptions This presentation concentrates on the use of the standard for data discovery only So. ISO19115. - PowerPoint PPT PresentationTRANSCRIPT
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Can work? Can work?
askGIraffeaskGIraffe
Lionel ElliottLionel Elliott
askGIraffe Manager askGIraffe Manager
ISO19115ISO19115
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ISO19115ISO19115• The Standard for metadataThe Standard for metadata• Contains standards for ‘discovery’ and feature Contains standards for ‘discovery’ and feature
descriptionsdescriptions• This presentation concentrates on the use of the This presentation concentrates on the use of the
standard for data discovery onlystandard for data discovery only• So ......So ......
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ISO19115ISO19115
What geographic information is
available in UK?
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about
Why askGIraffe?Why askGIraffe?
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• web-site gateway to UK geospatial web-site gateway to UK geospatial information information
• information provided by the public and information provided by the public and private sectorprivate sector
• Two gateways available:Two gateways available:– Data LocatorData Locator– Data IntegratorData Integrator
What is askGIraffe?What is askGIraffe?
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User
User
User User
User
Data Provider
Data Provider
Data Provider
Data ProviderData Provider Data Provider
Metadata
BGS Node
Metadata
IGGI Node
Metadata
OS Node
Metadata
NGDF Node
Metadata
AskGIraffe Data Locator
Metadata Z39.50Z39.50
Z39.50 Z39.50
XMLXML
XML
askGIraffe Data LocatoraskGIraffe Data Locator
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• Unique features:Unique features:– set up as a simple and attractive service for set up as a simple and attractive service for
researchers, from the professional to the researchers, from the professional to the citizencitizen
– the metadata service is complementary but the metadata service is complementary but not exclusive to the askGIraffe servicenot exclusive to the askGIraffe service
– advanced metadata searches can be selectedadvanced metadata searches can be selected
• What does askGIraffe look like?What does askGIraffe look like?
askGIraffe Data LocatoraskGIraffe Data Locator
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• The ISO standard enabled metadata The ISO standard enabled metadata services to be specified and commissioned services to be specified and commissioned quicklyquickly
• The services are perceived to be usefulThe services are perceived to be useful• The same metadata collected for one The same metadata collected for one
service can be placed on other servicesservice can be placed on other services• In UK, see Scotland > UK > InternationalIn UK, see Scotland > UK > International
ISO 19115 - a success story!ISO 19115 - a success story!
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• The time taken to deliver a published The time taken to deliver a published standard from conception means that standard from conception means that drafts have to be used (business will not drafts have to be used (business will not wait)wait)
• The Standard has come before The Standard has come before implementation - practice does present implementation - practice does present unexpected problems (testbed / open-unexpected problems (testbed / open-GIS practice is now minimalising this)GIS practice is now minimalising this)
Using Standards - commentsUsing Standards - comments
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• The following comments were The following comments were supplied by a service manager supplied by a service manager charged with developing the UK charged with developing the UK Metadata Service and encourage Metadata Service and encourage organisations to supply and organisations to supply and maintain metadata records on the maintain metadata records on the service service
Using Standards - commentsUsing Standards - comments
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• Need for clearer documentation on Need for clearer documentation on standards which are written at the level standards which are written at the level of those trying to use the standard.of those trying to use the standard.
• Standards are ‘shrouded’ in mystery for Standards are ‘shrouded’ in mystery for all but the most technical people and / or all but the most technical people and / or those involved in their creation.those involved in their creation.
• General lack of interest stimulated from General lack of interest stimulated from the word ‘Standard’the word ‘Standard’
User friendliness of StandardsUser friendliness of Standards
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• Difficulty convincing potential Metadata Difficulty convincing potential Metadata providers of the benefits of contributing providers of the benefits of contributing Metadata. e.g. no link from supplying Metadata. e.g. no link from supplying Metadata and increased revenue.Metadata and increased revenue.
• Difficulty prioritising Metadata collection Difficulty prioritising Metadata collection and maintenance against other and maintenance against other government initiatives perceived as being government initiatives perceived as being more importantmore important
Why askGIraffe Data Locator Why askGIraffe Data Locator is not effective (1)is not effective (1)
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• Without seeing benefit involved in initial Without seeing benefit involved in initial capture, custodians are reluctant to keep capture, custodians are reluctant to keep Metadata up to date.Metadata up to date.
• Complex, inconsistent and incompatible Complex, inconsistent and incompatible tools for the capture of Metadata.tools for the capture of Metadata.
• Confusion amongst different Metadata Confusion amongst different Metadata ‘standards’, e.g. askGIraffe, Dublin Core, ‘standards’, e.g. askGIraffe, Dublin Core, FGDC - which is best for what?FGDC - which is best for what?
Why askGIraffe Data Locator Why askGIraffe Data Locator is not effective (2)is not effective (2)
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• Confusion between various UK and Confusion between various UK and European government Metadata European government Metadata initiatives, e.g e-GIF, Information Asset initiatives, e.g e-GIF, Information Asset Register, LeClef, askGIraffe...Register, LeClef, askGIraffe...
• Confusion between Metadata and other Confusion between Metadata and other UK Government initiatives e.g UK Government initiatives e.g Open.Gov, GovTalk, Government Open.Gov, GovTalk, Government Gateway, UK-Online...Gateway, UK-Online...
Why askGIraffe Data Locator Why askGIraffe Data Locator is not effective (3)is not effective (3)
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• General lack of interest stimulated from the General lack of interest stimulated from the term ‘Metadata’term ‘Metadata’
• Complex User interface (now resolved in Complex User interface (now resolved in askGIraffe) but still common throughout askGIraffe) but still common throughout almost all other similar initiatives.almost all other similar initiatives.
• Therefore poor national and international Therefore poor national and international data management strategies affect data management strategies affect adversely the implementation of Standards.adversely the implementation of Standards.
Why askGIraffe Data Locator Why askGIraffe Data Locator is not effective (4)is not effective (4)
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