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Cascading Geospatial Content Services, CASE: European Location Framework

Authors:
Lassi Lehto

Keywords: service cascade; content aggregation; Web Feature Service; European SDI

Abstract:
The concept of service cascade can be seen as a solution for the data aggregation needs set forth for instance by the basic INSPIRE principle, according to which European level Spatial Data Infrastructures (ESDIs) can be built on top of national level SDIs. The research described in this paper has been conducted in the context of a major EU project, called European Location Framework (ELF). The main goal of the work discussed in this paper has been to facilitate European level access to national master datasets using direct access download services that conform to Web Feature Service (WFS) specification. Content aggregation is based on the Cascading WFS approach and carried out as on-the-fly process. Service cascade is not formally specified in the WFS standard, thus the ELF Cascading WFS has to be taken as an experimental implementation with some significant limitations. Altogether 83 national download services have been successfully included into the ELF Cascading WFS, providing access to over 120 different feature types from 11 INSPIRE themes in 13 European countries.

Pages: 21 to 24

Copyright: Copyright (c) The Government of Finland, 2017. Used by permission to IARIA.

Publication date: March 19, 2017

Published in: conference

ISSN: 2308-393X

ISBN: 978-1-61208-539-5

Location: Nice, France

Dates: from March 19, 2017 to March 23, 2017