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““LaClef” LaClef” unlockingunlocking
public sector GIpublic sector GI
Claude LuzetClaude LuzetMEGRIN Executive DirectorMEGRIN Executive Director
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TopicsTopics
introductionpredecessors : GDDD, ESMIthe “LaClef” solutiontowards a real European solution
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MEGRIN full members
+ Other CERCO members
+ observers
The operational arm of CERCOThe operational arm of CERCO
35 NMAs
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LaClefLaClef
A ‘new’ Info2000 project(EC-DGXIII)
Objectives: • improve and develop GDDD
• initiate efficient pan-European e-commerce
Time scale• Jan.99 - Dec.2000
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LaClef - objectives (1)LaClef - objectives (1)
Improve and develop current GDDD content: simplified (core metadata)
higher resolution (map-sheet level)
wider spectrum (aerial photos, geology, …)
sample data
+ fully multilingual service
Content :“find it” or Content :“find it” or metadata (again)metadata (again)…..
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LaClef - objectives (2)LaClef - objectives (2) interfaced with distributed servers:
link to existing NMAs servers
link to other servers: GEIXS, etc...
e-commerce prototype associated services
geodetic tools
format, ….
….yes, but metadata for betterservice: “buy it” - “use it”
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GDDD: the ‘old’ systemGDDD: the ‘old’ system
Data maintenance:
MS-Access update tool
Central database
Static html web pages www.megrin.org/gddd/gddd.html
GDDDWeb service
GDDDMaster
DB
GDDD basedData collection
NMAs’GDDD
DB
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The good ‘old’ systemThe good ‘old’ system
useful consistent information over 22 countries (36 organisations)
but updating a hassle :• manual typing/uploading
• translation difficulties
• standard implementation still subject to personal and/or cultural and/or linguistic specificities
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National MetadataNational Metadataeg SNIGeg SNIG
Thematic MetadataThematic Metadataeg Geologicaleg Geological
NMAsNMAsNMAsNMAs NMAsNMAs
MEGRINMEGRINTopographicalTopographical
ESMI User Interface
ESMI :ESMI : linking metadata servers linking metadata servers
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The decentralised modelThe decentralised modelGood modern concept but ...
limited to shallow information by today’s context • content
– metadata not available– metadata not consistent– metadata quality unknown
• user’s needs:– access to data still remote– language dependant
• financial– system not self-supporting
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LaClef : a four-sided solutionLaClef : a four-sided solution
1. Semantics
2. Architecture
3. Services
4. E-commerce
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laClef - semanticslaClef - semantics
a common implementation of the standard• a core-metadata
• based on CEN TC 287
• application-focused
• ad maximum controlled lists
• all predefined terms multilingual
define a common exchange format• an XML implementation of the core and its
controlled lists
1
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LaClef: LaClef: XML Data transfer conceptXML Data transfer concept1
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Seamless transfer of metadataSeamless transfer of metadata1
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EuroMapFinder architecture: EuroMapFinder architecture: a centralised/decentralised hybrid a centralised/decentralised hybrid
EuroMap- Finderuser
interface
GDDD v.3Central Meta DB
DB 1
DB 2 On- line
On- line
On- line
DB 3
Metadata Creation
tool
Dynamic html
2
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The servicesThe services
Fully multilingual, a service to:• the (meta)data provider
• the user
XML format & tools• for the (meta)data provider
Adding value services• geodetic (customised co-ordinates)
• format to order
• data clipping, ...
3
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E-commerceE-commerce
A three-level prototype:• central transaction
– centrally held and owned data– decentralised data
• connection to existing e-commerce
double objective• validation of the core-metadata
• commercial justification of the metadata effort
4
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LaClef Core metadataLaClef Core metadata
built on the ESMI core based on Standard (CEN TC287) with a few additional elements
quality, extent, pricing supported by extensive fully multilingual
thesaurus easily mapped to ISO, FGDC, ...
a European GI profile of CEN & ISO
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Core metadata: Core metadata: a pan-European work program ?a pan-European work program ?
May ‘99: final first version of MEGRIN core metadata for LaClef based on • GDDD experience
• ESMI core metadata
• EUROGI workshops and panels
• NMAs questionnaires & October ‘98 workshop
• LaClef partners, geology (GEIXS)
2000: version 2 for full “LaClef” implementation, and cross program action ?
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Conclusion — VisionConclusion — Vision
Common core metadata model
ESMI
LaClef
GISEDI
GEIXS
You?
XML exch. format XML tools
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Common problems ...Common problems ...
1. Common standard implementation
2. Metadata availability
3. Product unique identifier
4. VAT and cross-border e-commerce
… … require common solutions require common solutions and the support from the ECand the support from the EC
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Thank youThank youMille grazieMille grazie
MerciMerci
www.megrin.org