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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

Claude.Luzet@megrin.org

www.megrin.org