Geoportal of Wallonia : discover geographic data in Wallonia

The Geoportal of Wallonia : come in and discover geographic data of Wallonia

Vincent Bombaerts – Public Service of Wallonia

Open Belgium 2015 Conference - 23d of February 2015 - Palais des Congrès, Namur

Imagine…

Imagine… a spatial data infrastructure

SDI

Spatial data

Metadata

Web services

Agreements on data sharing

Coordination

This is reality !

• in Europe : INSPIRE – Directive 2007/2/EC establishing an Infrastructure for Spatial Information in the European Community - http://inspire.ec.europa.eu/

• in Wallonia - InfraSIG - 2010/12/22 Decree on Walloon infrastructure for spatial information

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http://geoportail.wallonie.be

The geoportal of Wallonia

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The Geoportal of Wallonia : come in and discover geographic data

• Introduction

• Enhance geographic data discoverability through a standardised metadata catalogue

• Focus on the main options for accessing geographic data through the Geoportal of Wallonia

• Conclusion

Metadata = data about the data

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Geographic metadata standards

• As soon as you want to exchange information, there is a need to agree

– on a common understanding of the meaning of the information (the semantics) ISO 19115-1 (ISO

19115)

– on a common way to encode this information ISO

19115-3 (ISO 19139)

– on a common communication language to exchange this information with others via a webservice OGC

Catalog Service for the Web

• Define a profile for specific purpose

– INSPIRE Profile of ISO 19115

– INSPIRE Profile of CSW

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ISO 19115 – Geographic information metadata

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Metawal : Catalog for geospatial information in Wallonia

• The official metadata catalog and one of the basic component of InfraSIG , the Walloon SDI

– Whoever wants to enter InfraSIG as a producer must document its data in Metawal

• Based on GeoNetwork Opensource

http://geonetwork-opensource.org/

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http://metawal.wallonie.be


CSW


CSW

http://metawal.wallonie.be/geonetwork/srv/fre/csw

Create once, reuse many times

CSW

Metawal


• Introduction



• Conclusion

The geoportal of Wallonia : a quick overview

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Find the data

View the data

Staticinformation

Dynamicinformation

Find metadata on the Geoportal of Wallonia

1. Open the Geocatalogue



2. Enter a keyword

Your search

The Results



2. Enter a keyword

3. Open the description sheet

Find access metadata


2. Enter a keyword

3. Open the description sheet

4. “Access” tab gives information on– Viewing application that show the data

– Web services serving the data

– How to obtain a copy of the data

– Conditions for accessing and using the data

– How to contact the distributor

What are the main distribution options ?

1. Use the dedicated viewer/application

• Made by people having a deep knowledge of the data

– Presents data that are made to be used together

– Prevents misuse of the data by zoom limitation, warnings and other mechanisms

– Always up-to-date

• Unless secured freely available for everybody

• Accessible under the terms of a licence -http://geoportail.wallonie.be/files/LicApplicationsSPW.pdf

– No overuse is permitted

– Screenshot permitted with mention

– Non-liability principle

– No guarantee on the service provided

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2. Use a web service

• Dynamic access to the data

– Always up-to-date

– Zoom limitations may exist to prevent misinterpretation

• Various protocols : REST Geoservices, WM(T)S, KML

• Unless secured freely available for everybody

• Accessible under the terms of a licence -http://geoportail.wallonie.be/files/LicServicesSPW.pdf

– No overuse is permitted



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3. Ask for a copy of the data

• Asynchronous access to the data

– Use with care, read the metadata, and update your copy !

• Only available for

– public services and their contractors, education and research

– a specific purpose (no other use permitted)

– a limited time

• Accessible under the terms of a licence -http://geoportail.wallonie.be/files/LicData.pdf



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4. Freely download and use the data ?

• Try the keyword “open data” in the catalogue...

• More and more producer are willing to open up their data, but we lack a clear framework to do it.

• Strategic plan for geomatics in Wallonia (PSGW) -http://geoportail.wallonie.be/files/docs/PlanStrategiqueGeomatique/PSGW_approuve.pdf

– Adopted by the government on May 8th 2014

– Towards open data for geographic data in Wallonia

• 2014-2019 Policy Statement (DPR)

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• Introduction



• Conclusion

Conclusion

• Geoportal of Wallonia: a big step forward towards discoverability and reuse of geospatial data through the use of standards

– Offer visibility and accurate information about the data

– Offer standardised access to the data

Reduce duplication of existing or similar data

Stimulate reuse of data

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Conclusion

• Challenges

– Open data

– Cross-domain exchange

– Data and metadata acculturation

• Opportunities

– Strategic plan (PSGW) and 2014-2019 Policy Statement (DPR)

– INSPIRE

– Open data pioneers

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Now... Come in and discover geographic data of Wallonia... and contribute

Vincent Bombaerts – Public Service of Wallonia

[email protected] - @vbombaerts


Geoportal of Wallonia : discover geographic data in Wallonia

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