Network Services for Spatial Data in European Geo-Portals...

Network Services for Spatial Data in European Geo-Portals and their Compliance with ISO and OGC Standards

Elżbieta BieleckaAgnieszka ZwirowiczDariusz Dukaczewski

Instytut Geodezji i Kartografii

Krakow , 23 - 25 June 2010

INSPIRE Conference 2010INSPIRE as a Framework for Cooperation

THE AIM OF THE STUDY

Analyses the current state of play of national geo-portals development and their compliance with ISO and OGC standards.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

METHODOLOGY (1)

Ex post evaluation, based on data collected through web survey at the beginning of 2010.Analysis from the point of view of end-user.No investigation has been made on geo-portal with limited access to unregistered user.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

METHODOLOGY (2)

European geo-portals were analyzed in terms of:visibility of map viewer, the number of language versions of view services,the functionality of view services,availability of network services like WMS, WFS, CSW, and compatibility with the relevant OGC specifications and ISO standards.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

METHODOLOGY (3)

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

Issue Parameters or measuresVisibility Link to the map viewer Accessibility No of language versions

Map viewer GUITypes and No of functionsCompliance with INSPIREOGC WMS standard version

Discovery servicesExistence of serviceCompliance with INSPIREOGC CSW standard version

Download servicesExistence of serviceCompliance with INSPIREOGC WFS standard version

RESULTS (1)

30 of 43 European States do have official national geo-portal, with Denmark, Finland, Slovakia and Switzerland have two or more.Spatial data view service is available in 28 States.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS View service visibility

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS View service visibility

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS Number of languages

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS Functionality of view services (1)

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

Type of functions No. of countries

EU geo-portal

Navigation 29 +Display 29 +

display overlay 24 +display legend 27 +display metadata 11 −

Identity/select 18 −Search 24 −Co-ordinates 19 +Measure 17 −Print 21 −Other 14 +

Functionality of view services

No. of functions

No. of countries

Low < 12 3Medium low 13-18 11Medium high 19-24 12High > 25 3

RESULTS Functionality of view services (2)

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS Functionality of view services (2)

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS Discovery and download services

Only a few geo-portals implemented discovery and download services in user friendly way.Sometimes only metadata information about data set is available.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS Compliance with INSPIRE and OGC standards

View serviceEN ISO 19128:2005(E)OGC standards – WMS 1.3.0

19 out of 30 examined geo-portals have implemented WMS

21% compatibile

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS Compliance with INSPIRE and OGC standards

Download serviceISO/DIS 19142, ISO/DIS 19143, WFS Implementation Specification.

Non of the analysed geo-portal offered direct access to download services using Web Feature Service OGC standard.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS Compliance with INSPIRE and OGC standards

Discovery serviceISO 19115, ISO 19138, COMMISSION REGULATION.

Metadata are collected in accordance with different standards (e.g. ESRI, NGDF).Out of 14 analyzed catalog services just 2are compatible with the OpenGIS Catalogue Service Implementation Specification.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

RESULTS State of play in development of geo-portals in the European States

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

No. of European Countries

%

Geoportal 30 69,8%View services 29 67,4%WMS 19 44,2%Catalogue services 14 32,6%Total European States

43100,0%

RESULTS European Geo-Portals in Users’Opinion

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

CONCLUSIONS

The current geo-portal activities in Europe are mostly driven by the INSPIRE Directive.Each of Member States has started some investments in implementing a national geo-portal.The state of play differs - Some portals haveimplemented a lot of different functions, even much more than is required by INSPIRE.There is a lack of consistency in naming tools and functions.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

CONCLUSIONS

Major difficulties in obtaining information about viewing, discovery and downloading services were:

the language barrier,the discrepancy between information set out in the description of services (including information available in on-line help) and information available directly through the service interface,high dynamic of geo-portals functionality.

Elżbieta Bielecka, INSPIRE Conference 2010 INSPIRE as a Framework for Cooperation

Thank You For Attension

Elżbieta BieleckaElzbieta.bielecka@igik.edu.pl