System-independent And Quality Tested
Availability Of Railway Data Across Country And
System Borders By The Model Driven Approach
Author(s)
H. R. Gnägi & N. Stahel
Abstract
The model driven approach attacks tasks around (geo-) data services by first
exactly describing the data to be treated on the system- and format-independent
conceptual level. Various services can effectively be supported by the precise
conceptual model. We will show how e.g. the automatic link to a standard
transfer format allows system-independent railway data checking and the
successful integration of differently structured track data. A conceptual model
for the railway data transferable by the XML-based transfer format railML©
allows the comparison with the automatically generated XML-based model
driven format. Different possibilities are presented to combine the two
approaches for integrating railway data across system and country borders and
providing a sustainable interoperability.
Keywords: model driven approach, data integration, interoperability, railway
data, transfer format, semantic transformation, railML©, UML, INTERLIS.
1 Introduction
Our application of the model driven approach to railway data started in summer
2003. The question was, if and how very differently structured administrative
and commercial data from various systems could commonly be made available
without changing the original systems. Especially needed was the link of these
data with the track geometry. Hofmann [4] arrived to link CERES and DfA data
and to provide a common visualisation. In the LINKOST project of Swiss
Federal Railways SBB [2] and the GeoRail project of UIC [1] N. Stahel and H.R.
Gnägi [7] provided a demonstrator implementation extending Hofmann’s data
Keywords
model driven approach, data integration, interoperability, railwaydata, transfer format, semantic transformation, railML©, UML, INTERLIS.
Related Book
Other papers in this volume
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