Interoperabilità nelle Infrastrutture di Dati Territoriali, 26. Feb. 2004, Roma GI Interoperability...

Interoperabilità nelle Infrastrutture di Dati Territoriali, 26. Feb. 2004, Roma

GI Interoperability in Europe

Lars BernardEuropean CommissionDG Joint Research CentreInstitute for Environment and Sustainability, ESDI ActionIspra, Italy


Outline

1) INSPIRE

2) Interoperating Geoinformation Services in an Europen cross border SDI

2) The EU-Geo-Portal a first step towards the ESDI

3) interoperability awareness

4) conclusions & lessons learned


EU policies and GI

• Increasing interest for the spatial dimension:

– GI-GIS needed (on an European level) to• Assess needs• Formulate the policy• Monitor its implementation• Evaluate its effectiveness• Inform European Citizens,....

– GI-GIS explicitly required in EU directives/regulations• Water Framework directive, Habitat, …• Urban, Noise, …


But only islands …

• Data policy restrictions– pricing, copyright, access rights, licensing policy

• Lack of co-ordination– across boarders– between levels of government

• Lack of standards and their use– incompatible information– incompatible information systems– fragmentation of information– redundancy

• Lack of dataIn summary: no in

frastru

cture

EU has islands of data of different standards and quality...


INSPIREINfrastructure for SPatial InfoRmation in Europe

Need for action !

Without a co-ordinated framework as “minimum common denominator for all Member States” the problems will persist. INSPIRE launched in September 2001.

http://inspire.jrc.it


INSPIRE Framework

• Objectives & Principles– Make relevant, harmonised spatial data available for

Community Environmental Policy (formulation, implementation, monitoring and evaluation) and for the citizen ...

– … through the establishment of integrated spatial information services, based upon a distributed network of databases, linked by common standards and protocols to ensure compatibility.

– Linked to legal basis and policy measures

– pan-European harmonisation of metadata / datasets / services (as far as necessary)in an European Spatial Data Infrastructure (ESDI)


INSPIRE Framework

• Scope– Existing digital spatial data (exception: essential datasets)– Public sector– Protection of the environment, Sustainable development,

Integration

• Data policy– licensing framework for sharing between public bodies– Publish, discover and view services free of charge– no charging constraints on access

• Implementing provisions– Establishment of Committee, Monitoring and reporting– Stepwise approach


INSPIRE principles

1. spatial data should be collected once and maintained at the level where this can be done most effectively

2. it must be possible to combine seamlessly spatial data from different sources across the EU and share it between many users and applications

3. it must be possible for spatial data collected at one level of government to be shared between all the different levels of government

4. spatial data needed for good governance should be available on conditions that are not restricting its extensive use

5. it should be easy to discover which spatial data is available, to evaluate its fitness for purpose and to know which conditions apply for its use.


INSPIRE complements other key Information Directives...

Explo

itatio

n of

Public S

ecto

r

Info

rmat

ion

Environmental

Information

INSPIREEnabled Access

Copyright

Databases

Data Protection

Ratification of Aarhus

WFD

Habitats

Noise


INSPIRE - Organisation

• Driving Forces:– INSPIRE Expert Group

(Member States , Umbrella organisation in the area of environment and GI)

– European Commission (DG Environment, EuroStat, JRC), EEA, GMES-Initiative

– JRC/IES (coordination, technical & scientific secretary) …

http://inspire.jrc.it


INSPIRE Information Flow

Harmonised Data policy

Collaborativeagreements

CEN / ISO / OGCNational and Sub-

national SDI

Commercial & Professional Users

Citizens

Utility & PublicServices

NGOs and not-for-profit orgs

Government & Administrations

ResearchEuropean Data

National and Sub-national SDI

National and Sub-national SDI

Local data

Local data

European Data

delivery of information services

request for information services

Discovery Service

Technical Integration/harmonisation

Data resourcesINSPIRE specifications

Users

ESDI


Towards the ESDI

Standardisation Harmonisation Integration

From discovery of GI resources

to Full Interoperability of GI services

• Geodetic Framework

• Seamless data

• Quality insurance

• Certification

• Updating

• Data model

• …

• Metadata

• Discovery Service

• Data Policies

• Licensing Framework

• Coordinating structures

• …

• Catalog Services

• View Service

• Query Service

• Object Access Service

• Generalisation Services

• Geo-Processing services

• …


INSPIRE Outlook

Oct 2002 : final position papers

May 2003 : Internet consultation

June 2003 : Extended impact assessment

End of 2003 : Interservice consultation

2004 : Adoption of proposal by EC

2006 : Adoption of INSPIRE

2006+ : Implementation of framework

Pre

-im

ple

me

nta

tio

n p

ha

se


JRC Technical Support of the INSPIRE pre-Implementation phase, e.g.:

• Close Relationship to CEN/ISO/OGC – Chair of JAG OGC/ISO– Support of ISO and OGC outreach

• Workshops on connecting RSDI (1st in 1/2003)– Cross border pilot

• European Geoportal – First prototype in 11/2003

• Outreach – AGILE 2004, 10th EC-GI & GIS.. interoperability

awareness


Interoperating GI services in EU RSDIA cross border study

Background• Discussions with stakeholders on realizing a NRW-

NL cross border GDI since almost one year • Technical Workshop in Ispra in Jan. 2003

on connecting European RSDI

showed that only a few cross-border linkages can be realized in the moment


Interoperating GI services in EU RSDI

Cross Border RSDI Study (March - June 2003)

Funded by EU-INTERREG, NL, and NRW:

A) Study on different stakeholders and their needs on a cross border SDI

B) Organization plan for a sustainable cross border SDI

C) Pilot on easy-to-reach cross border SDI applications

D) Presentation of the results on the 2nd NRW-NL Geo-Conference in June 2003 (Münster)


Interoperating GI services in EU RSDIA cross border study

Objectives• Prove and demonstrate the applicability of state of

the art technology and GI standards:

– proving that it is simple and easy to achieve

– proving that technology and standards are practical and applicable, experience is available

– proving that Cross Border partnership leads to better results

– reporting the current technical potentials of cross border RSDI and the open development and research issues

– apply the INSPIRE recommendations


Cross Border RSDI Prototype

Scope of the Pilot:• Offering cross border geo-information by providing

cross border Web Mapping Services (WMS) and Web Catalog Services (WCatS)

• Providing topographic data and road data by different WMS

• Accessible through universal clients in HTML-browser and allowing seamless usage of linked WMS


Cross Border RSDI Prototype Technologies

PublishFind

Bind

Search Engine

InformationResources

Internet



Web Catalog Service (WcatS):• Standardizes the way a client searches for metadata

descriptions on spatial data or services• Parameters include the query language used, the

desired verbosity of the result, etc.• Catalog servers manage metadata descriptions

based on a metadata schema, e.g. ISO 19115• Basic operations:

– GetCapabilities– TransactionService– GetRecord– DescribeRecordType



OpenGIS Web Map Service (WMS)• Standardizes the way in which clients request maps• Parameters include: named layers, size and area of

the returned map, spatial reference system, etc.• A WMS has 3 operations:

– GetCapabilities– GetMap– GetFeatureInfo


Cross Border RSDI Prototype Data

• Topography

• Road

• Food-and-mouth disease cases (fictive)

• Metadata for Datasets and Services (ISO 19115)

<serviceType><nameValue>WMS</nameValue><nameNameSpace/>

</serviceType><serviceTypeVersion>1.1.0</serviceTypeVersion><serviceTypeVersion>1.1.1</serviceTypeVersion><citation>

<title>XtraWMS - GDI Testbed II (2nd Rev)</title><date dateType="creation">2003-01-11 00:00:00</date><citedResponsibleParty>

<individualName>Reinhard Erstling</individualName><organisationName>interactive instruments GmbH</organisationName><positionName>Geschäftsführer</positionName><contactInfo>

<phone>


Cross Border RSDI Prototype Overview: Catalog Services

WRSNRW CeGi

WRS ClientNRWCeGi

CS / CS ClientNLNCGI


Cross Border RSDI Prototype Overview: Mapping Services

WMS - Road Data NRW ii

WMS - Topo Data NRW AED

WMS ClientIfGI

WMS - Road/Topo/NUTS NLGeodan

WMS - MKZ Data NLGeodan


Showcase NL-NRW„Cross-Border Risk Management“

• In the Netherlands a case of food-and-mouth-disease has been detected.



• This case is added to a web-accessible map server (*) by a veterinary from the Dutch environmental authority

(*) the MKZ map server; food-and-mouth-disease is “mond en klauwzeer” in dutch

OperatorNL




• The Dutch veterinary calls its German colleague in North-Rhine Westphalia to inform him about the developments and discuss measures



• The German veterinary in North-Rhine Westphalia starts his Web Browser and opens a Cross-Border GDI Portal

http://www.gdi-nl-nrw.info/



• He opens a catalog client to search for information about the food-and-mouth-disease in Gelderland

• He uses the keywords: „Gelderland Maul- und Klauenseuche“

• … and finds the “mond en klauwzeer” map server in the Netherlands (due to the availability of multi-language metadata)



• The veterinary in North-Rhine Westphalia opens his favourite web mapping client

• He adds the MKZ-Layer from the map server found by his search

WMS ClientIfGI

WMS - NUTS NLGeodan




• The veterinary sees a map with one or more symbols representing MKZ cases

• He clicks on one symbol to retrieve additional information about the particular case



• The veterinary now uses the catalogue client again to search for road data in both the Netherlands and North-Rhine Westphalia



• He finds two map servers and adds layers from these servers to his map



• Together with his colleague in the Netherlands he identifies a location that needs closer inspection (the closest border crossings from the reported cases where control points shall be established; no control points on highways)



• As he zooms in to this area, more details are shown on the map (topographic layers)

• Both operators can now identify and discuss in detail where the control points should be established, etc.



• After the discussion is finished and the measures have been agreed upon, both veterinaries continue to communicate with the required authorities in their region (e.g. police, road administration, etc.)

• In order to do this successfully and efficiently, a presentation of the same information in the native language of the respective region is essential

support for multiple languages is a key aspect for cross-border activities



• The situation as seen by the operator in the Netherlands



• The use of open specifications allows the integration in standard GIS products, too


EU Geo-Portal - Motivation

• Recommended by – INSPIRE WGs Architecture and Standards and

Implementing Strategy – GINIE Project– Supported by the INSPIRE Internet consultation

• One entrance point to the up-coming ESDI to support the search and access to geoinformation resources in the ESDI

• Evaluation and demonstration of current developments and their potentials

• Motivation of national and regional SDI-development


EU Geo-Portal

• Does not contradict the Idea of the ESDI, being based on distributed geoinformation services ( INSPIRE-consultation)

• A Geo-Portal realizes a thematic and/or regional view on the SDI (environmental portal, national portal, etc.).

• Has an important teaching, learning, and motivation effects : what happens ?

what is already feasible ?

who is already taking part ? (= my GI resources should also be connected)


EU Geo-Portal - Requirements

In chronological order (1/2): • Based on distributed geodata & GI services

(no local copies…) !• Publish and search geoinformation

• Access to further relevant resources (Documentation, FAQ, links,…)

• Integration of distributed portrayal services (Web Mapping Services)

• Provide multilingual Thesauri and Gazetteer


EU Geo-Portal - Requirements

In chronological order (2/2): • Multilingualism

Application, Thesauri, Metadata, Attribute identifiers of geodata or services… …up to which granularity ?!?

• Support of AAA services (Authorisation, Access, Account); perhaps Pricing- and Ordering Services

• user profiles• Access on further geoprocessing services

(classification, coordinate transformation, etc.) and GI service chaining according to user needs


EU Geo-Portal - Components

Web Browser (Thin Client)

European Geo-Portal

GI Services

Various providers of Geographic Information

Gazetteer

Thesauri &Translation

WFS WMS WMS WCSWFS WCatSWCatSWMS

Cascading oraggregatingfurther services

Gaz


EU Geo-Portal - Prototyp

Requirements for the prototype:

• Publish of Geoinformation (geodata and GI services) by registering metadata

• Search for geoinformation

• Access to further relevant resources (Documentation, FAQ, links,…)

• Integration of distributed portrayal services (Web Mapping Services)


EU Geo-Portal - Prototyp

JRC

European Geo-Portal

Various providers of Geographic Information

Gazetteer

Download WMS WMS CatSWMS

Gaz

DownloadJRC


EU Geoportal Prototyp - Standards

• OGC Web Services– WMS 1.x.x

• Metadaten (ISO)– 19115:2003 using the categories recommended by

INSPIRE

this Metadata needs to be provided to register your service or dataset

• Geographic names for Gazetteer – NIMA


EU Geo-Portal Prototype

http://eu-geoportal.jrc.it


Searching data on biodiversity


Search results


See metadata


View map


Zoom map and select NATURA2000


Zoom and query NATURA 2000


Add new WMS (CORINE Land Cover)


Conclusions

• Major Achievements:– Up-to-date geo-information is available across borders /

pan-European using existing GI-specifications and standards

– Collaboration is possible on a shared and common information level

– (Low-key) semantic interoperability is achieved through the use of mapping services

– No pre-installed software is required, just a web browser and an internet connection


Conclusions

• What was required to make these applications work: – Usage of common technical specifications and standards

• Web Map Service• Catalog Service• Common base information models and their encoding

– Availability of the required datasets via the internet– All services support a common

Coordinate Reference System (CRS)– Multi-language support in Web Map Services

and the metadata


Issues / Lessons learnt

• In a European context, built-in support for multiple languages is required in technical specifications like Web Map Service and Catalog Service

• The higher the structural and semantical similarity of the information on both sides of the border, the easier it is to exploit cross-border data (e.g. layer classification)

• Integration by mapping does result in maps with heterogeneous mapping styles not necessarily a problem



• Metadata…– Lack in collecting and providing of Metadata - thus use of

metadata can hardly be proven– Further need on tools to support (semi-) automatic

collection and maintenance of metadata– Missing support to combine ISO 19115 and 19119;

Standards not always sufficient – Multilingualism– Harmonising

• Of used Schemata und Categories• Used Vocabularies in Thesauri and Gazetteer

( semantic Interoperability)



• ISO-Standards and OGC-Specifications are a good & important tool for Interoperability, but it needs some additional glue… – Definition of CRS, Scale-Hints, layer names… – Certification of services ( CITE)– Quality measurement of distributed(!) services– Long-lasting Specifications

ESDI Technical Guidelines; support to harmonise additional specifications on European level

Futher development of specifications (incl. feedback to ISO & OGC !!) by European and national SDI-Projects


Create awareness on interoperability

• Pre-conference Tutorial -Technical Foundations of Interoperability for Geoinformation and Workshop - SDI & Interoperability for Geoinformation 27-28 April '04 at 7th AGILE 2004 (Heraklion, GR)

• Workshop on national and regional Geo-Portals 23-25 June '04 at 10th EC-GI & GIS Workshop, (Warsaw, PL) http://wwwlmu.jrc.it/Workshops/10ec-gis/

http://www.agile-online.org


Thank You for Your Attention!

Questions & Comments ?!

contacts in the ESDI team: Alessandro Annoni [email protected] Lars Bernard [email protected] Ioannis Kanellopoulos

[email protected] Paul Smits [email protected]


Cross Border RSDI PrototypeCommon CRS (ETRS89 + UTM32)

Interoperabilità nelle Infrastrutture di Dati Territoriali, 26. Feb. 2004, Roma GI Interoperability...

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